* [RFC v2 PATCH 0/3] mm: common PAGE_SIZE shift macros
@ 2021-09-19 13:12 Oleksandr Natalenko
2021-09-19 13:12 ` [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros Oleksandr Natalenko
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: Oleksandr Natalenko @ 2021-09-19 13:12 UTC (permalink / raw)
To: linux-kernel
Cc: linux-mm, Andrew Morton, Vlastimil Babka, Matthew Wilcox,
Greg Kroah-Hartman, Miaohe Lin, Michal Hocko, Mel Gorman,
Stephen Rothwell, David Laight
There are various places where the K(x) macro (or its alternative and/or
counterpart) is defined. This submission gets rid of multiple definitions
and provides common ones.
Based on discussion with Miaohe Lin [1].
The patch is based on top of next-20210910 and is compile-tested using
allyesconfig.
RFC v1: [2].
Changes since RFC v1:
* change name from K(x) to PG2KB(x)
* also provide KB2PG(x)
* replace open-coded variants
* do not use separate header file for macro definitions
[1] https://lore.kernel.org/linux-mm/9161665.bUqNH3lxUD@natalenko.name/
[2] https://lore.kernel.org/lkml/20210901092149.994791-1-oleksandr@natalenko.name/
Oleksandr Natalenko (3):
mm: add PG2KB/KB2PG helper macros
mm: replace custom PG2KB/KB2PG macros with common ones
mm: replace open-coded PG2KB/KB2PG variants with macros
arch/alpha/kernel/setup.c | 3 +-
arch/arc/include/asm/arcregs.h | 4 +-
arch/mips/mm/init.c | 2 +-
arch/powerpc/platforms/pseries/cmm.c | 17 ++--
arch/s390/appldata/appldata_mem.c | 19 ++--
arch/x86/kernel/cpu/mtrr/cleanup.c | 17 ++--
block/blk-sysfs.c | 9 +-
drivers/base/node.c | 69 ++++++++-------
drivers/gpu/drm/v3d/v3d_debugfs.c | 3 +-
drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c | 5 +-
drivers/md/md-bitmap.c | 4 +-
drivers/scsi/mpt3sas/mpt3sas_base.c | 5 +-
drivers/xen/xen-balloon.c | 11 ++-
fs/ceph/addr.c | 2 +-
fs/ceph/super.h | 3 +-
fs/fs-writeback.c | 2 +-
fs/nfs/write.c | 4 +-
fs/nfsd/nfscache.c | 3 +-
fs/proc/meminfo.c | 4 +-
fs/proc/task_mmu.c | 3 +-
include/linux/mm.h | 3 +
include/trace/events/writeback.h | 19 ++--
kernel/debug/kdb/kdb_main.c | 3 +-
kernel/events/core.c | 2 +-
kernel/fork.c | 2 +-
mm/backing-dev.c | 22 +++--
mm/hugetlb.c | 2 +-
mm/memcontrol.c | 18 ++--
mm/mmap.c | 6 +-
mm/nommu.c | 4 +-
mm/oom_kill.c | 16 ++--
mm/page-writeback.c | 4 +-
mm/page_alloc.c | 86 +++++++++----------
mm/shmem.c | 3 +-
mm/swap_state.c | 5 +-
mm/swapfile.c | 11 ++-
mm/util.c | 6 +-
37 files changed, 197 insertions(+), 204 deletions(-)
--
2.33.0
^ permalink raw reply [flat|nested] 8+ messages in thread* [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros 2021-09-19 13:12 [RFC v2 PATCH 0/3] mm: common PAGE_SIZE shift macros Oleksandr Natalenko @ 2021-09-19 13:12 ` Oleksandr Natalenko 2021-09-19 13:21 ` Greg Kroah-Hartman 2021-09-19 14:21 ` Matthew Wilcox 2021-09-19 13:12 ` [RFC v2 PATCH 2/3] mm: replace custom PG2KB/KB2PG macros with common ones Oleksandr Natalenko 2021-09-19 13:12 ` [RFC v2 PATCH 3/3] mm: replace open-coded PG2KB/KB2PG variants with macros Oleksandr Natalenko 2 siblings, 2 replies; 8+ messages in thread From: Oleksandr Natalenko @ 2021-09-19 13:12 UTC (permalink / raw) To: linux-kernel Cc: linux-mm, Andrew Morton, Vlastimil Babka, Matthew Wilcox, Greg Kroah-Hartman, Miaohe Lin, Michal Hocko, Mel Gorman, Stephen Rothwell, David Laight Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name> --- include/linux/mm.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 00bb2d938df4..0a7e950ac8aa 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -98,6 +98,9 @@ extern int mmap_rnd_compat_bits __read_mostly; #include <asm/page.h> #include <asm/processor.h> +#define PG2KB(x) ((x) << (PAGE_SHIFT - 10)) +#define KB2PG(x) ((x) >> (PAGE_SHIFT - 10)) + /* * Architectures that support memory tagging (assigning tags to memory regions, * embedding these tags into addresses that point to these memory regions, and -- 2.33.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros 2021-09-19 13:12 ` [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros Oleksandr Natalenko @ 2021-09-19 13:21 ` Greg Kroah-Hartman 2021-09-19 14:21 ` Matthew Wilcox 1 sibling, 0 replies; 8+ messages in thread From: Greg Kroah-Hartman @ 2021-09-19 13:21 UTC (permalink / raw) To: Oleksandr Natalenko Cc: linux-kernel, linux-mm, Andrew Morton, Vlastimil Babka, Matthew Wilcox, Miaohe Lin, Michal Hocko, Mel Gorman, Stephen Rothwell, David Laight On Sun, Sep 19, 2021 at 03:12:46PM +0200, Oleksandr Natalenko wrote: > Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name> I know I can not take patches without any changelog text. Perhaps other maintainers are more lax :( thanks, greg k-h ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros 2021-09-19 13:12 ` [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros Oleksandr Natalenko 2021-09-19 13:21 ` Greg Kroah-Hartman @ 2021-09-19 14:21 ` Matthew Wilcox 1 sibling, 0 replies; 8+ messages in thread From: Matthew Wilcox @ 2021-09-19 14:21 UTC (permalink / raw) To: Oleksandr Natalenko Cc: linux-kernel, linux-mm, Andrew Morton, Vlastimil Babka, Greg Kroah-Hartman, Miaohe Lin, Michal Hocko, Mel Gorman, Stephen Rothwell, David Laight On Sun, Sep 19, 2021 at 03:12:46PM +0200, Oleksandr Natalenko wrote: > +#define PG2KB(x) ((x) << (PAGE_SHIFT - 10)) > +#define KB2PG(x) ((x) >> (PAGE_SHIFT - 10)) This is not an improvement. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [RFC v2 PATCH 2/3] mm: replace custom PG2KB/KB2PG macros with common ones 2021-09-19 13:12 [RFC v2 PATCH 0/3] mm: common PAGE_SIZE shift macros Oleksandr Natalenko 2021-09-19 13:12 ` [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros Oleksandr Natalenko @ 2021-09-19 13:12 ` Oleksandr Natalenko 2021-09-19 15:35 ` kernel test robot 2021-09-19 17:13 ` kernel test robot 2021-09-19 13:12 ` [RFC v2 PATCH 3/3] mm: replace open-coded PG2KB/KB2PG variants with macros Oleksandr Natalenko 2 siblings, 2 replies; 8+ messages in thread From: Oleksandr Natalenko @ 2021-09-19 13:12 UTC (permalink / raw) To: linux-kernel Cc: linux-mm, Andrew Morton, Vlastimil Babka, Matthew Wilcox, Greg Kroah-Hartman, Miaohe Lin, Michal Hocko, Mel Gorman, Stephen Rothwell, David Laight Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name> --- arch/arc/include/asm/arcregs.h | 4 +- arch/powerpc/platforms/pseries/cmm.c | 17 +++--- arch/s390/appldata/appldata_mem.c | 19 +++---- drivers/base/node.c | 69 +++++++++++------------ drivers/scsi/mpt3sas/mpt3sas_base.c | 5 +- drivers/xen/xen-balloon.c | 11 ++-- include/trace/events/writeback.h | 19 +++---- kernel/debug/kdb/kdb_main.c | 3 +- mm/backing-dev.c | 20 +++---- mm/memcontrol.c | 18 +++--- mm/oom_kill.c | 16 +++--- mm/page_alloc.c | 84 ++++++++++++++-------------- 12 files changed, 136 insertions(+), 149 deletions(-) diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h index 2162023195c5..87becc380d6a 100644 --- a/arch/arc/include/asm/arcregs.h +++ b/arch/arc/include/asm/arcregs.h @@ -146,13 +146,13 @@ #ifndef __ASSEMBLY__ +#include <linux/mm.h> #include <soc/arc/aux.h> /* Helpers */ #define TO_KB(bytes) ((bytes) >> 10) #define TO_MB(bytes) (TO_KB(bytes) >> 10) -#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10)) -#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10) +#define PAGES_TO_MB(n_pages) (PG2KB(n_pages) >> 10) /* diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c index 45a3a3022a85..c22b9b66b930 100644 --- a/arch/powerpc/platforms/pseries/cmm.c +++ b/arch/powerpc/platforms/pseries/cmm.c @@ -12,6 +12,7 @@ #include <linux/fs.h> #include <linux/gfp.h> #include <linux/kthread.h> +#include <linux/mm.h> #include <linux/module.h> #include <linux/oom.h> #include <linux/reboot.h> @@ -39,8 +40,6 @@ #define CMM_DISABLE 0 #define CMM_OOM_KB 1024 #define CMM_MIN_MEM_MB 256 -#define KB2PAGES(_p) ((_p)>>(PAGE_SHIFT-10)) -#define PAGES2KB(_p) ((_p)<<(PAGE_SHIFT-10)) #define CMM_MEM_HOTPLUG_PRI 1 @@ -215,13 +214,13 @@ static int cmm_oom_notify(struct notifier_block *self, unsigned long dummy, void *parm) { unsigned long *freed = parm; - long nr = KB2PAGES(oom_kb); + long nr = KB2PG(oom_kb); cmm_dbg("OOM processing started\n"); nr = cmm_free_pages(nr); loaned_pages_target = atomic_long_read(&loaned_pages); - *freed += KB2PAGES(oom_kb) - nr; - oom_freed_pages += KB2PAGES(oom_kb) - nr; + *freed += KB2PG(oom_kb) - nr; + oom_freed_pages += KB2PG(oom_kb) - nr; cmm_dbg("OOM processing complete\n"); return NOTIFY_OK; } @@ -251,7 +250,7 @@ static void cmm_get_mpp(void) PAGE_SIZE); target = page_loan_request + __loaned_pages; } else { - target = KB2PAGES(simulate_loan_target_kb); + target = KB2PG(simulate_loan_target_kb); page_loan_request = target - __loaned_pages; } @@ -342,13 +341,13 @@ static int cmm_thread(void *dummy) } \ static DEVICE_ATTR(name, 0444, show_##name, NULL) -CMM_SHOW(loaned_kb, "%lu\n", PAGES2KB(atomic_long_read(&loaned_pages))); -CMM_SHOW(loaned_target_kb, "%lu\n", PAGES2KB(loaned_pages_target)); +CMM_SHOW(loaned_kb, "%lu\n", PG2KB(atomic_long_read(&loaned_pages))); +CMM_SHOW(loaned_target_kb, "%lu\n", PG2KB(loaned_pages_target)); static ssize_t show_oom_pages(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%lu\n", PAGES2KB(oom_freed_pages)); + return sprintf(buf, "%lu\n", PG2KB(oom_freed_pages)); } static ssize_t store_oom_pages(struct device *dev, diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c index 21c3147bd92a..35f02d18d88c 100644 --- a/arch/s390/appldata/appldata_mem.c +++ b/arch/s390/appldata/appldata_mem.c @@ -8,6 +8,7 @@ * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com> */ +#include <linux/mm.h> #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> @@ -20,8 +21,6 @@ #include "appldata.h" -#define P2K(x) ((x) << (PAGE_SHIFT - 10)) /* Converts #Pages to KB */ - /* * Memory data * @@ -94,17 +93,17 @@ static void appldata_get_mem_data(void *data) si_meminfo(&val); mem_data->sharedram = val.sharedram; - mem_data->totalram = P2K(val.totalram); - mem_data->freeram = P2K(val.freeram); - mem_data->totalhigh = P2K(val.totalhigh); - mem_data->freehigh = P2K(val.freehigh); - mem_data->bufferram = P2K(val.bufferram); - mem_data->cached = P2K(global_node_page_state(NR_FILE_PAGES) + mem_data->totalram = PG2KB(val.totalram); + mem_data->freeram = PG2KB(val.freeram); + mem_data->totalhigh = PG2KB(val.totalhigh); + mem_data->freehigh = PG2KB(val.freehigh); + mem_data->bufferram = PG2KB(val.bufferram); + mem_data->cached = PG2KB(global_node_page_state(NR_FILE_PAGES) - val.bufferram); si_swapinfo(&val); - mem_data->totalswap = P2K(val.totalswap); - mem_data->freeswap = P2K(val.freeswap); + mem_data->totalswap = PG2KB(val.totalswap); + mem_data->freeswap = PG2KB(val.freeswap); mem_data->timestamp = get_tod_clock(); mem_data->sync_count_2++; diff --git a/drivers/base/node.c b/drivers/base/node.c index c56d34f8158f..fcacb3d58167 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -365,7 +365,6 @@ static void node_init_caches(unsigned int nid) { } static void node_remove_caches(struct node *node) { } #endif -#define K(x) ((x) << (PAGE_SHIFT - 10)) static ssize_t node_read_meminfo(struct device *dev, struct device_attribute *attr, char *buf) { @@ -395,20 +394,20 @@ static ssize_t node_read_meminfo(struct device *dev, "Node %d Inactive(file): %8lu kB\n" "Node %d Unevictable: %8lu kB\n" "Node %d Mlocked: %8lu kB\n", - nid, K(i.totalram), - nid, K(i.freeram), - nid, K(i.totalram - i.freeram), - nid, K(swapcached), - nid, K(node_page_state(pgdat, NR_ACTIVE_ANON) + + nid, PG2KB(i.totalram), + nid, PG2KB(i.freeram), + nid, PG2KB(i.totalram - i.freeram), + nid, PG2KB(swapcached), + nid, PG2KB(node_page_state(pgdat, NR_ACTIVE_ANON) + node_page_state(pgdat, NR_ACTIVE_FILE)), - nid, K(node_page_state(pgdat, NR_INACTIVE_ANON) + + nid, PG2KB(node_page_state(pgdat, NR_INACTIVE_ANON) + node_page_state(pgdat, NR_INACTIVE_FILE)), - nid, K(node_page_state(pgdat, NR_ACTIVE_ANON)), - nid, K(node_page_state(pgdat, NR_INACTIVE_ANON)), - nid, K(node_page_state(pgdat, NR_ACTIVE_FILE)), - nid, K(node_page_state(pgdat, NR_INACTIVE_FILE)), - nid, K(node_page_state(pgdat, NR_UNEVICTABLE)), - nid, K(sum_zone_node_page_state(nid, NR_MLOCK))); + nid, PG2KB(node_page_state(pgdat, NR_ACTIVE_ANON)), + nid, PG2KB(node_page_state(pgdat, NR_INACTIVE_ANON)), + nid, PG2KB(node_page_state(pgdat, NR_ACTIVE_FILE)), + nid, PG2KB(node_page_state(pgdat, NR_INACTIVE_FILE)), + nid, PG2KB(node_page_state(pgdat, NR_UNEVICTABLE)), + nid, PG2KB(sum_zone_node_page_state(nid, NR_MLOCK))); #ifdef CONFIG_HIGHMEM len += sysfs_emit_at(buf, len, @@ -416,10 +415,10 @@ static ssize_t node_read_meminfo(struct device *dev, "Node %d HighFree: %8lu kB\n" "Node %d LowTotal: %8lu kB\n" "Node %d LowFree: %8lu kB\n", - nid, K(i.totalhigh), - nid, K(i.freehigh), - nid, K(i.totalram - i.totalhigh), - nid, K(i.freeram - i.freehigh)); + nid, PG2KB(i.totalhigh), + nid, PG2KB(i.freehigh), + nid, PG2KB(i.totalram - i.totalhigh), + nid, PG2KB(i.freeram - i.freehigh)); #endif len += sysfs_emit_at(buf, len, "Node %d Dirty: %8lu kB\n" @@ -448,32 +447,32 @@ static ssize_t node_read_meminfo(struct device *dev, "Node %d FilePmdMapped: %8lu kB\n" #endif , - nid, K(node_page_state(pgdat, NR_FILE_DIRTY)), - nid, K(node_page_state(pgdat, NR_WRITEBACK)), - nid, K(node_page_state(pgdat, NR_FILE_PAGES)), - nid, K(node_page_state(pgdat, NR_FILE_MAPPED)), - nid, K(node_page_state(pgdat, NR_ANON_MAPPED)), - nid, K(i.sharedram), + nid, PG2KB(node_page_state(pgdat, NR_FILE_DIRTY)), + nid, PG2KB(node_page_state(pgdat, NR_WRITEBACK)), + nid, PG2KB(node_page_state(pgdat, NR_FILE_PAGES)), + nid, PG2KB(node_page_state(pgdat, NR_FILE_MAPPED)), + nid, PG2KB(node_page_state(pgdat, NR_ANON_MAPPED)), + nid, PG2KB(i.sharedram), nid, node_page_state(pgdat, NR_KERNEL_STACK_KB), #ifdef CONFIG_SHADOW_CALL_STACK nid, node_page_state(pgdat, NR_KERNEL_SCS_KB), #endif - nid, K(node_page_state(pgdat, NR_PAGETABLE)), + nid, PG2KB(node_page_state(pgdat, NR_PAGETABLE)), nid, 0UL, - nid, K(sum_zone_node_page_state(nid, NR_BOUNCE)), - nid, K(node_page_state(pgdat, NR_WRITEBACK_TEMP)), - nid, K(sreclaimable + + nid, PG2KB(sum_zone_node_page_state(nid, NR_BOUNCE)), + nid, PG2KB(node_page_state(pgdat, NR_WRITEBACK_TEMP)), + nid, PG2KB(sreclaimable + node_page_state(pgdat, NR_KERNEL_MISC_RECLAIMABLE)), - nid, K(sreclaimable + sunreclaimable), - nid, K(sreclaimable), - nid, K(sunreclaimable) + nid, PG2KB(sreclaimable + sunreclaimable), + nid, PG2KB(sreclaimable), + nid, PG2KB(sunreclaimable) #ifdef CONFIG_TRANSPARENT_HUGEPAGE , - nid, K(node_page_state(pgdat, NR_ANON_THPS)), - nid, K(node_page_state(pgdat, NR_SHMEM_THPS)), - nid, K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)), - nid, K(node_page_state(pgdat, NR_FILE_THPS)), - nid, K(node_page_state(pgdat, NR_FILE_PMDMAPPED)) + nid, PG2KB(node_page_state(pgdat, NR_ANON_THPS)), + nid, PG2KB(node_page_state(pgdat, NR_SHMEM_THPS)), + nid, PG2KB(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)), + nid, PG2KB(node_page_state(pgdat, NR_FILE_THPS)), + nid, PG2KB(node_page_state(pgdat, NR_FILE_PMDMAPPED)) #endif ); len += hugetlb_report_node_meminfo(buf, len, nid); diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 27eb652b564f..bb11f31f8431 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -44,6 +44,7 @@ */ #include <linux/kernel.h> +#include <linux/mm.h> #include <linux/module.h> #include <linux/errno.h> #include <linux/init.h> @@ -2988,8 +2989,6 @@ _base_build_sg_ieee(struct MPT3SAS_ADAPTER *ioc, void *psge, } } -#define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10)) - /** * _base_config_dma_addressing - set dma addressing * @ioc: per adapter object @@ -3026,7 +3025,7 @@ _base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev) si_meminfo(&s); ioc_info(ioc, "%d BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (%ld kB)\n", - ioc->dma_mask, convert_to_kb(s.totalram)); + ioc->dma_mask, PG2KB(s.totalram)); return 0; } diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c index 8cd583db20b1..fdd39e5e1a1e 100644 --- a/drivers/xen/xen-balloon.c +++ b/drivers/xen/xen-balloon.c @@ -34,6 +34,7 @@ #include <linux/kernel.h> #include <linux/errno.h> +#include <linux/mm.h> #include <linux/mm_types.h> #include <linux/init.h> #include <linux/capability.h> @@ -47,8 +48,6 @@ #include <xen/page.h> #include <xen/mem-reservation.h> -#define PAGES2KB(_p) ((_p)<<(PAGE_SHIFT-10)) - #define BALLOON_CLASS_NAME "xen_memory" #ifdef CONFIG_MEMORY_HOTPLUG @@ -142,9 +141,9 @@ EXPORT_SYMBOL_GPL(xen_balloon_init); } \ static DEVICE_ATTR_RO(name) -BALLOON_SHOW(current_kb, "%lu\n", PAGES2KB(balloon_stats.current_pages)); -BALLOON_SHOW(low_kb, "%lu\n", PAGES2KB(balloon_stats.balloon_low)); -BALLOON_SHOW(high_kb, "%lu\n", PAGES2KB(balloon_stats.balloon_high)); +BALLOON_SHOW(current_kb, "%lu\n", PG2KB(balloon_stats.current_pages)); +BALLOON_SHOW(low_kb, "%lu\n", PG2KB(balloon_stats.balloon_low)); +BALLOON_SHOW(high_kb, "%lu\n", PG2KB(balloon_stats.balloon_high)); static DEVICE_ULONG_ATTR(schedule_delay, 0444, balloon_stats.schedule_delay); static DEVICE_ULONG_ATTR(max_schedule_delay, 0644, balloon_stats.max_schedule_delay); @@ -155,7 +154,7 @@ static DEVICE_BOOL_ATTR(scrub_pages, 0644, xen_scrub_pages); static ssize_t target_kb_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%lu\n", PAGES2KB(balloon_stats.target_pages)); + return sprintf(buf, "%lu\n", PG2KB(balloon_stats.target_pages)); } static ssize_t target_kb_store(struct device *dev, diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 7dccb66474f7..3a30e0cb3bee 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -5,6 +5,7 @@ #if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_WRITEBACK_H +#include <linux/mm.h> #include <linux/tracepoint.h> #include <linux/backing-dev.h> #include <linux/writeback.h> @@ -570,8 +571,6 @@ TRACE_EVENT(global_dirty_state, ) ); -#define KBps(x) ((x) << (PAGE_SHIFT - 10)) - TRACE_EVENT(bdi_dirty_ratelimit, TP_PROTO(struct bdi_writeback *wb, @@ -593,13 +592,13 @@ TRACE_EVENT(bdi_dirty_ratelimit, TP_fast_assign( strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32); - __entry->write_bw = KBps(wb->write_bandwidth); - __entry->avg_write_bw = KBps(wb->avg_write_bandwidth); - __entry->dirty_rate = KBps(dirty_rate); - __entry->dirty_ratelimit = KBps(wb->dirty_ratelimit); - __entry->task_ratelimit = KBps(task_ratelimit); + __entry->write_bw = PG2KB(wb->write_bandwidth); + __entry->avg_write_bw = PG2KB(wb->avg_write_bandwidth); + __entry->dirty_rate = PG2KB(dirty_rate); + __entry->dirty_ratelimit = PG2KB(wb->dirty_ratelimit); + __entry->task_ratelimit = PG2KB(task_ratelimit); __entry->balanced_dirty_ratelimit = - KBps(wb->balanced_dirty_ratelimit); + PG2KB(wb->balanced_dirty_ratelimit); __entry->cgroup_ino = __trace_wb_assign_cgroup(wb); ), @@ -666,8 +665,8 @@ TRACE_EVENT(balance_dirty_pages, __entry->bdi_setpoint = __entry->setpoint * bdi_thresh / (thresh + 1); __entry->bdi_dirty = bdi_dirty; - __entry->dirty_ratelimit = KBps(dirty_ratelimit); - __entry->task_ratelimit = KBps(task_ratelimit); + __entry->dirty_ratelimit = PG2KB(dirty_ratelimit); + __entry->task_ratelimit = PG2KB(task_ratelimit); __entry->dirtied = dirtied; __entry->dirtied_pause = current->nr_dirtied_pause; __entry->think = current->dirty_paused_when == 0 ? 0 : diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index fa6deda894a1..b1bbc8f39171 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -2522,10 +2522,9 @@ static int kdb_summary(int argc, const char **argv) LOAD_INT(val.loads[2]), LOAD_FRAC(val.loads[2])); /* Display in kilobytes */ -#define K(x) ((x) << (PAGE_SHIFT - 10)) kdb_printf("\nMemTotal: %8lu kB\nMemFree: %8lu kB\n" "Buffers: %8lu kB\n", - K(val.totalram), K(val.freeram), K(val.bufferram)); + PG2KB(val.totalram), PG2KB(val.freeram), PG2KB(val.bufferram)); return 0; } diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 4a9d4e27d0d9..b1d9c7bb35b3 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -33,8 +33,6 @@ LIST_HEAD(bdi_list); /* bdi_wq serves all asynchronous writeback tasks */ struct workqueue_struct *bdi_wq; -#define K(x) ((x) << (PAGE_SHIFT - 10)) - #ifdef CONFIG_DEBUG_FS #include <linux/debugfs.h> #include <linux/seq_file.h> @@ -87,14 +85,14 @@ static int bdi_debug_stats_show(struct seq_file *m, void *v) "b_dirty_time: %10lu\n" "bdi_list: %10u\n" "state: %10lx\n", - (unsigned long) K(wb_stat(wb, WB_WRITEBACK)), - (unsigned long) K(wb_stat(wb, WB_RECLAIMABLE)), - K(wb_thresh), - K(dirty_thresh), - K(background_thresh), - (unsigned long) K(wb_stat(wb, WB_DIRTIED)), - (unsigned long) K(wb_stat(wb, WB_WRITTEN)), - (unsigned long) K(wb->write_bandwidth), + (unsigned long) PG2KB(wb_stat(wb, WB_WRITEBACK)), + (unsigned long) PG2KB(wb_stat(wb, WB_RECLAIMABLE)), + PG2KB(wb_thresh), + PG2KB(dirty_thresh), + PG2KB(background_thresh), + (unsigned long) PG2KB(wb_stat(wb, WB_DIRTIED)), + (unsigned long) PG2KB(wb_stat(wb, WB_WRITTEN)), + (unsigned long) PG2KB(wb->write_bandwidth), nr_dirty, nr_io, nr_more_io, @@ -157,7 +155,7 @@ static ssize_t name##_show(struct device *dev, \ } \ static DEVICE_ATTR_RW(name); -BDI_SHOW(read_ahead_kb, K(bdi->ra_pages)) +BDI_SHOW(read_ahead_kb, PG2KB(bdi->ra_pages)) static ssize_t min_ratio_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 47dc4959ead8..5071380c77f0 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -53,6 +53,7 @@ #include <linux/fs.h> #include <linux/seq_file.h> #include <linux/vmpressure.h> +#include <linux/mm.h> #include <linux/mm_inline.h> #include <linux/swap_cgroup.h> #include <linux/cpu.h> @@ -1471,7 +1472,6 @@ static char *memory_stat_format(struct mem_cgroup *memcg) return s.buffer; } -#define K(x) ((x) << (PAGE_SHIFT-10)) /** * mem_cgroup_print_oom_context: Print OOM information relevant to * memory controller. @@ -1507,19 +1507,19 @@ void mem_cgroup_print_oom_meminfo(struct mem_cgroup *memcg) char *buf; pr_info("memory: usage %llukB, limit %llukB, failcnt %lu\n", - K((u64)page_counter_read(&memcg->memory)), - K((u64)READ_ONCE(memcg->memory.max)), memcg->memory.failcnt); + PG2KB((u64)page_counter_read(&memcg->memory)), + PG2KB((u64)READ_ONCE(memcg->memory.max)), memcg->memory.failcnt); if (cgroup_subsys_on_dfl(memory_cgrp_subsys)) pr_info("swap: usage %llukB, limit %llukB, failcnt %lu\n", - K((u64)page_counter_read(&memcg->swap)), - K((u64)READ_ONCE(memcg->swap.max)), memcg->swap.failcnt); + PG2KB((u64)page_counter_read(&memcg->swap)), + PG2KB((u64)READ_ONCE(memcg->swap.max)), memcg->swap.failcnt); else { pr_info("memory+swap: usage %llukB, limit %llukB, failcnt %lu\n", - K((u64)page_counter_read(&memcg->memsw)), - K((u64)memcg->memsw.max), memcg->memsw.failcnt); + PG2KB((u64)page_counter_read(&memcg->memsw)), + PG2KB((u64)memcg->memsw.max), memcg->memsw.failcnt); pr_info("kmem: usage %llukB, limit %llukB, failcnt %lu\n", - K((u64)page_counter_read(&memcg->kmem)), - K((u64)memcg->kmem.max), memcg->kmem.failcnt); + PG2KB((u64)page_counter_read(&memcg->kmem)), + PG2KB((u64)memcg->kmem.max), memcg->kmem.failcnt); } pr_info("Memory cgroup stats for "); diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 431d38c3bba8..9c7a6ec4b298 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -485,8 +485,6 @@ static DECLARE_WAIT_QUEUE_HEAD(oom_victims_wait); static bool oom_killer_disabled __read_mostly; -#define K(x) ((x) << (PAGE_SHIFT-10)) - /* * task->mm can be NULL if the task is the exited group leader. So to * determine whether the task is using a particular mm, we examine all the @@ -599,9 +597,9 @@ static bool oom_reap_task_mm(struct task_struct *tsk, struct mm_struct *mm) pr_info("oom_reaper: reaped process %d (%s), now anon-rss:%lukB, file-rss:%lukB, shmem-rss:%lukB\n", task_pid_nr(tsk), tsk->comm, - K(get_mm_counter(mm, MM_ANONPAGES)), - K(get_mm_counter(mm, MM_FILEPAGES)), - K(get_mm_counter(mm, MM_SHMEMPAGES))); + PG2KB(get_mm_counter(mm, MM_ANONPAGES)), + PG2KB(get_mm_counter(mm, MM_FILEPAGES)), + PG2KB(get_mm_counter(mm, MM_SHMEMPAGES))); out_finish: trace_finish_task_reaping(tsk->pid); out_unlock: @@ -894,10 +892,10 @@ static void __oom_kill_process(struct task_struct *victim, const char *message) do_send_sig_info(SIGKILL, SEND_SIG_PRIV, victim, PIDTYPE_TGID); mark_oom_victim(victim); pr_err("%s: Killed process %d (%s) total-vm:%lukB, anon-rss:%lukB, file-rss:%lukB, shmem-rss:%lukB, UID:%u pgtables:%lukB oom_score_adj:%hd\n", - message, task_pid_nr(victim), victim->comm, K(mm->total_vm), - K(get_mm_counter(mm, MM_ANONPAGES)), - K(get_mm_counter(mm, MM_FILEPAGES)), - K(get_mm_counter(mm, MM_SHMEMPAGES)), + message, task_pid_nr(victim), victim->comm, PG2KB(mm->total_vm), + PG2KB(get_mm_counter(mm, MM_ANONPAGES)), + PG2KB(get_mm_counter(mm, MM_FILEPAGES)), + PG2KB(get_mm_counter(mm, MM_SHMEMPAGES)), from_kuid(&init_user_ns, task_uid(victim)), mm_pgtables_bytes(mm) >> 10, victim->signal->oom_score_adj); task_unlock(victim); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 3b610b05d9b8..5fad2f6d7d5f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5836,8 +5836,6 @@ static bool show_mem_node_skip(unsigned int flags, int nid, nodemask_t *nodemask return !node_isset(nid, *nodemask); } -#define K(x) ((x) << (PAGE_SHIFT-10)) - static void show_migration_types(unsigned char type) { static const char types[MIGRATE_TYPES] = { @@ -5946,28 +5944,28 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask) " all_unreclaimable? %s" "\n", pgdat->node_id, - K(node_page_state(pgdat, NR_ACTIVE_ANON)), - K(node_page_state(pgdat, NR_INACTIVE_ANON)), - K(node_page_state(pgdat, NR_ACTIVE_FILE)), - K(node_page_state(pgdat, NR_INACTIVE_FILE)), - K(node_page_state(pgdat, NR_UNEVICTABLE)), - K(node_page_state(pgdat, NR_ISOLATED_ANON)), - K(node_page_state(pgdat, NR_ISOLATED_FILE)), - K(node_page_state(pgdat, NR_FILE_MAPPED)), - K(node_page_state(pgdat, NR_FILE_DIRTY)), - K(node_page_state(pgdat, NR_WRITEBACK)), - K(node_page_state(pgdat, NR_SHMEM)), + PG2KB(node_page_state(pgdat, NR_ACTIVE_ANON)), + PG2KB(node_page_state(pgdat, NR_INACTIVE_ANON)), + PG2KB(node_page_state(pgdat, NR_ACTIVE_FILE)), + PG2KB(node_page_state(pgdat, NR_INACTIVE_FILE)), + PG2KB(node_page_state(pgdat, NR_UNEVICTABLE)), + PG2KB(node_page_state(pgdat, NR_ISOLATED_ANON)), + PG2KB(node_page_state(pgdat, NR_ISOLATED_FILE)), + PG2KB(node_page_state(pgdat, NR_FILE_MAPPED)), + PG2KB(node_page_state(pgdat, NR_FILE_DIRTY)), + PG2KB(node_page_state(pgdat, NR_WRITEBACK)), + PG2KB(node_page_state(pgdat, NR_SHMEM)), #ifdef CONFIG_TRANSPARENT_HUGEPAGE - K(node_page_state(pgdat, NR_SHMEM_THPS)), - K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)), - K(node_page_state(pgdat, NR_ANON_THPS)), + PG2KB(node_page_state(pgdat, NR_SHMEM_THPS)), + PG2KB(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)), + PG2KB(node_page_state(pgdat, NR_ANON_THPS)), #endif - K(node_page_state(pgdat, NR_WRITEBACK_TEMP)), + PG2KB(node_page_state(pgdat, NR_WRITEBACK_TEMP)), node_page_state(pgdat, NR_KERNEL_STACK_KB), #ifdef CONFIG_SHADOW_CALL_STACK node_page_state(pgdat, NR_KERNEL_SCS_KB), #endif - K(node_page_state(pgdat, NR_PAGETABLE)), + PG2KB(node_page_state(pgdat, NR_PAGETABLE)), pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES ? "yes" : "no"); } @@ -6005,24 +6003,24 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask) " free_cma:%lukB" "\n", zone->name, - K(zone_page_state(zone, NR_FREE_PAGES)), - K(min_wmark_pages(zone)), - K(low_wmark_pages(zone)), - K(high_wmark_pages(zone)), - K(zone->nr_reserved_highatomic), - K(zone_page_state(zone, NR_ZONE_ACTIVE_ANON)), - K(zone_page_state(zone, NR_ZONE_INACTIVE_ANON)), - K(zone_page_state(zone, NR_ZONE_ACTIVE_FILE)), - K(zone_page_state(zone, NR_ZONE_INACTIVE_FILE)), - K(zone_page_state(zone, NR_ZONE_UNEVICTABLE)), - K(zone_page_state(zone, NR_ZONE_WRITE_PENDING)), - K(zone->present_pages), - K(zone_managed_pages(zone)), - K(zone_page_state(zone, NR_MLOCK)), - K(zone_page_state(zone, NR_BOUNCE)), - K(free_pcp), - K(this_cpu_read(zone->per_cpu_pageset->count)), - K(zone_page_state(zone, NR_FREE_CMA_PAGES))); + PG2KB(zone_page_state(zone, NR_FREE_PAGES)), + PG2KB(min_wmark_pages(zone)), + PG2KB(low_wmark_pages(zone)), + PG2KB(high_wmark_pages(zone)), + PG2KB(zone->nr_reserved_highatomic), + PG2KB(zone_page_state(zone, NR_ZONE_ACTIVE_ANON)), + PG2KB(zone_page_state(zone, NR_ZONE_INACTIVE_ANON)), + PG2KB(zone_page_state(zone, NR_ZONE_ACTIVE_FILE)), + PG2KB(zone_page_state(zone, NR_ZONE_INACTIVE_FILE)), + PG2KB(zone_page_state(zone, NR_ZONE_UNEVICTABLE)), + PG2KB(zone_page_state(zone, NR_ZONE_WRITE_PENDING)), + PG2KB(zone->present_pages), + PG2KB(zone_managed_pages(zone)), + PG2KB(zone_page_state(zone, NR_MLOCK)), + PG2KB(zone_page_state(zone, NR_BOUNCE)), + PG2KB(free_pcp), + PG2KB(this_cpu_read(zone->per_cpu_pageset->count)), + PG2KB(zone_page_state(zone, NR_FREE_CMA_PAGES))); printk("lowmem_reserve[]:"); for (i = 0; i < MAX_NR_ZONES; i++) printk(KERN_CONT " %ld", zone->lowmem_reserve[i]); @@ -6056,11 +6054,11 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask) spin_unlock_irqrestore(&zone->lock, flags); for (order = 0; order < MAX_ORDER; order++) { printk(KERN_CONT "%lu*%lukB ", - nr[order], K(1UL) << order); + nr[order], PG2KB(1UL) << order); if (nr[order]) show_migration_types(types[order]); } - printk(KERN_CONT "= %lukB\n", K(total)); + printk(KERN_CONT "= %lukB\n", PG2KB(total)); } hugetlb_show_meminfo(); @@ -8136,7 +8134,7 @@ unsigned long free_reserved_area(void *start, void *end, int poison, const char } if (pages && s) - pr_info("Freeing %s memory: %ldK\n", s, K(pages)); + pr_info("Freeing %s memory: %ldK\n", s, PG2KB(pages)); return pages; } @@ -8181,13 +8179,13 @@ void __init mem_init_print_info(void) ", %luK highmem" #endif ")\n", - K(nr_free_pages()), K(physpages), + PG2KB(nr_free_pages()), PG2KB(physpages), codesize >> 10, datasize >> 10, rosize >> 10, (init_data_size + init_code_size) >> 10, bss_size >> 10, - K(physpages - totalram_pages() - totalcma_pages), - K(totalcma_pages) + PG2KB(physpages - totalram_pages() - totalcma_pages), + PG2KB(totalcma_pages) #ifdef CONFIG_HIGHMEM - , K(totalhigh_pages()) + , PG2KB(totalhigh_pages()) #endif ); } -- 2.33.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [RFC v2 PATCH 2/3] mm: replace custom PG2KB/KB2PG macros with common ones 2021-09-19 13:12 ` [RFC v2 PATCH 2/3] mm: replace custom PG2KB/KB2PG macros with common ones Oleksandr Natalenko @ 2021-09-19 15:35 ` kernel test robot 2021-09-19 17:13 ` kernel test robot 1 sibling, 0 replies; 8+ messages in thread From: kernel test robot @ 2021-09-19 15:35 UTC (permalink / raw) To: kbuild-all [-- Attachment #1: Type: text/plain, Size: 40905 bytes --] Hi Oleksandr, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on hnaz-mm/master] url: https://github.com/0day-ci/linux/commits/Oleksandr-Natalenko/mm-common-PAGE_SIZE-shift-macros/20210919-211421 base: https://github.com/hnaz/linux-mm master config: arc-randconfig-r043-20210919 (attached as .config) compiler: arc-elf-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/c129ed106a8dd29030e8585cb39a779de91aaa6a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Oleksandr-Natalenko/mm-common-PAGE_SIZE-shift-macros/20210919-211421 git checkout c129ed106a8dd29030e8585cb39a779de91aaa6a # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc prepare If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com> All error/warnings (new ones prefixed by >>): arch/arc/Makefile:26: ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '' is unknown, fallback to '' error: no override and no default toolchain set init/Kconfig:70:warning: 'RUSTC_VERSION': number is invalid In file included from ./arch/arc/include/generated/asm/div64.h:1, from include/linux/math.h:5, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/preempt.h:11, from include/linux/percpu.h:6, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-arcv2.h:9, from arch/arc/include/asm/irqflags.h:13, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/math64.h: In function 'div_u64_rem': >> include/asm-generic/div64.h:224:13: error: implicit declaration of function 'is_power_of_2' [-Werror=implicit-function-declaration] 224 | is_power_of_2(__base)) { \ | ^~~~~~~~~~~~~ include/linux/math64.h:92:22: note: in expansion of macro 'do_div' 92 | *remainder = do_div(dividend, divisor); | ^~~~~~ >> include/asm-generic/div64.h:226:25: error: implicit declaration of function 'ilog2' [-Werror=implicit-function-declaration] 226 | (n) >>= ilog2(__base); \ | ^~~~~ include/linux/math64.h:92:22: note: in expansion of macro 'do_div' 92 | *remainder = do_div(dividend, divisor); | ^~~~~~ In file included from include/asm-generic/preempt.h:5, from ./arch/arc/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/percpu.h:6, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-arcv2.h:9, from arch/arc/include/asm/irqflags.h:13, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/thread_info.h: In function 'set_ti_thread_flag': >> include/linux/thread_info.h:89:9: error: implicit declaration of function 'set_bit' [-Werror=implicit-function-declaration] 89 | set_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~ include/linux/thread_info.h: In function 'clear_ti_thread_flag': >> include/linux/thread_info.h:94:9: error: implicit declaration of function 'clear_bit' [-Werror=implicit-function-declaration] 94 | clear_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~~~ include/linux/thread_info.h: In function 'test_and_set_ti_thread_flag': >> include/linux/thread_info.h:108:16: error: implicit declaration of function 'test_and_set_bit' [-Werror=implicit-function-declaration] 108 | return test_and_set_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~~~~~~~~~~ include/linux/thread_info.h: In function 'test_and_clear_ti_thread_flag': >> include/linux/thread_info.h:113:16: error: implicit declaration of function 'test_and_clear_bit' [-Werror=implicit-function-declaration] 113 | return test_and_clear_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~~~~~~~~~~~~ include/linux/thread_info.h: In function 'test_ti_thread_flag': >> include/linux/thread_info.h:118:16: error: implicit declaration of function 'test_bit'; did you mean 'test_taint'? [-Werror=implicit-function-declaration] 118 | return test_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~~ | test_taint In file included from include/linux/cpumask.h:12, from include/linux/smp.h:13, from include/linux/percpu.h:7, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-arcv2.h:9, from arch/arc/include/asm/irqflags.h:13, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/bitmap.h: In function 'bitmap_empty': >> include/linux/bitmap.h:391:16: error: implicit declaration of function 'find_first_bit'; did you mean 'sched_find_first_bit'? [-Werror=implicit-function-declaration] 391 | return find_first_bit(src, nbits) == nbits; | ^~~~~~~~~~~~~~ | sched_find_first_bit include/linux/bitmap.h: In function 'bitmap_full': >> include/linux/bitmap.h:399:16: error: implicit declaration of function 'find_first_zero_bit' [-Werror=implicit-function-declaration] 399 | return find_first_zero_bit(src, nbits) == nbits; | ^~~~~~~~~~~~~~~~~~~ include/linux/bitmap.h: In function 'bitmap_weight': >> include/linux/bitmap.h:405:24: error: implicit declaration of function 'hweight_long' [-Werror=implicit-function-declaration] 405 | return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits)); | ^~~~~~~~~~~~ include/linux/bitmap.h: In function 'bitmap_set': >> include/linux/bitmap.h:413:17: error: implicit declaration of function '__set_bit' [-Werror=implicit-function-declaration] 413 | __set_bit(start, map); | ^~~~~~~~~ include/linux/bitmap.h: In function 'bitmap_clear': >> include/linux/bitmap.h:427:17: error: implicit declaration of function '__clear_bit' [-Werror=implicit-function-declaration] 427 | __clear_bit(start, map); | ^~~~~~~~~~~ include/linux/bitmap.h: In function 'bitmap_next_clear_region': >> include/linux/bitmap.h:471:15: error: implicit declaration of function 'find_next_zero_bit' [-Werror=implicit-function-declaration] 471 | *rs = find_next_zero_bit(bitmap, end, *rs); | ^~~~~~~~~~~~~~~~~~ >> include/linux/bitmap.h:472:15: error: implicit declaration of function 'find_next_bit' [-Werror=implicit-function-declaration] 472 | *re = find_next_bit(bitmap, end, *rs + 1); | ^~~~~~~~~~~~~ In file included from include/linux/smp_types.h:5, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-arcv2.h:9, from arch/arc/include/asm/irqflags.h:13, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/llist.h: In function 'llist_del_all': >> include/linux/llist.h:237:16: error: implicit declaration of function 'xchg' [-Werror=implicit-function-declaration] 237 | return xchg(&head->first, NULL); | ^~~~ >> include/linux/llist.h:237:16: warning: returning 'int' from a function with return type 'struct llist_node *' makes pointer from integer without a cast [-Wint-conversion] 237 | return xchg(&head->first, NULL); | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from <command-line>: include/linux/gfp.h: In function 'gfp_migratetype': >> include/linux/gfp.h:347:63: error: 'MIGRATE_MOVABLE' undeclared (first use in this function) 347 | BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); | ^~~~~~~~~~~~~~~ include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert' 302 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert' 322 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ include/linux/gfp.h:347:9: note: in expansion of macro 'BUILD_BUG_ON' 347 | BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); | ^~~~~~~~~~~~ include/linux/gfp.h:347:63: note: each undeclared identifier is reported only once for each function it appears in 347 | BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); | ^~~~~~~~~~~~~~~ include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert' 302 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert' 322 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ include/linux/gfp.h:347:9: note: in expansion of macro 'BUILD_BUG_ON' 347 | BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); | ^~~~~~~~~~~~ In file included from include/asm-generic/bug.h:5, from arch/arc/include/asm/bug.h:30, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: >> include/linux/gfp.h:349:22: error: 'page_group_by_mobility_disabled' undeclared (first use in this function) 349 | if (unlikely(page_group_by_mobility_disabled)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:78:45: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ In file included from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-arcv2.h:9, from arch/arc/include/asm/irqflags.h:13, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: >> include/linux/gfp.h:350:24: error: 'MIGRATE_UNMOVABLE' undeclared (first use in this function) 350 | return MIGRATE_UNMOVABLE; | ^~~~~~~~~~~~~~~~~ include/linux/gfp.h: At top level: >> include/linux/gfp.h:441:25: warning: "ZONES_SHIFT" is not defined, evaluates to 0 [-Wundef] 441 | #define GFP_ZONES_SHIFT ZONES_SHIFT | ^~~~~~~~~~~ include/linux/gfp.h:444:10: note: in expansion of macro 'GFP_ZONES_SHIFT' 444 | #if 16 * GFP_ZONES_SHIFT > BITS_PER_LONG | ^~~~~~~~~~~~~~~ include/linux/gfp.h: In function 'gfp_zone': include/linux/gfp.h:441:25: error: 'ZONES_SHIFT' undeclared (first use in this function); did you mean 'NMI_SHIFT'? 441 | #define GFP_ZONES_SHIFT ZONES_SHIFT | ^~~~~~~~~~~ include/linux/gfp.h:449:29: note: in expansion of macro 'GFP_ZONES_SHIFT' 449 | (ZONE_NORMAL << 0 * GFP_ZONES_SHIFT) \ | ^~~~~~~~~~~~~~~ include/linux/gfp.h:481:14: note: in expansion of macro 'GFP_ZONE_TABLE' 481 | z = (GFP_ZONE_TABLE >> (bit * GFP_ZONES_SHIFT)) & | ^~~~~~~~~~~~~~ include/linux/gfp.h: In function 'gfp_zonelist': include/linux/gfp.h:500:16: error: 'ZONELIST_FALLBACK' undeclared (first use in this function) 500 | return ZONELIST_FALLBACK; | ^~~~~~~~~~~~~~~~~ include/linux/gfp.h: In function 'node_zonelist': include/linux/gfp.h:514:16: error: implicit declaration of function 'NODE_DATA' [-Werror=implicit-function-declaration] 514 | return NODE_DATA(nid)->node_zonelists + gfp_zonelist(flags); | ^~~~~~~~~ include/linux/gfp.h:514:30: error: invalid type argument of '->' (have 'int') 514 | return NODE_DATA(nid)->node_zonelists + gfp_zonelist(flags); | ^~ include/linux/gfp.h: At top level: include/linux/gfp.h:525:17: error: unknown type name 'nodemask_t' 525 | nodemask_t *nodemask); | ^~~~~~~~~~ include/linux/gfp.h:527:17: error: unknown type name 'nodemask_t' 527 | nodemask_t *nodemask); | ^~~~~~~~~~ include/linux/gfp.h:530:33: error: unknown type name 'nodemask_t' 530 | nodemask_t *nodemask, int nr_pages, | ^~~~~~~~~~ include/linux/gfp.h: In function 'alloc_pages_bulk_list': include/linux/gfp.h:538:16: error: implicit declaration of function '__alloc_pages_bulk'; did you mean 'alloc_pages_bulk_list'? [-Werror=implicit-function-declaration] 538 | return __alloc_pages_bulk(gfp, numa_mem_id(), NULL, nr_pages, list, NULL); | ^~~~~~~~~~~~~~~~~~ | alloc_pages_bulk_list include/linux/gfp.h: In function 'alloc_pages_bulk_array_node': include/linux/gfp.h:550:20: error: 'NUMA_NO_NODE' undeclared (first use in this function) 550 | if (nid == NUMA_NO_NODE) | ^~~~~~~~~~~~ In file included from include/asm-generic/bug.h:5, from arch/arc/include/asm/bug.h:30, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: include/linux/gfp.h: In function '__alloc_pages_node': include/linux/gfp.h:563:37: error: 'MAX_NUMNODES' undeclared (first use in this function) 563 | VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES); | ^~~~~~~~~~~~ include/linux/compiler.h:78:45: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/mmdebug.h:17:25: note: in expansion of macro 'BUG_ON' 17 | #define VM_BUG_ON(cond) BUG_ON(cond) | ^~~~~~ include/linux/gfp.h:563:9: note: in expansion of macro 'VM_BUG_ON' 563 | VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES); | ^~~~~~~~~ In file included from arch/arc/include/asm/bug.h:30, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: include/linux/gfp.h:564:52: error: implicit declaration of function 'node_online'; did you mean 'node_zonelist'? [-Werror=implicit-function-declaration] 564 | VM_WARN_ON((gfp_mask & __GFP_THISNODE) && !node_online(nid)); | ^~~~~~~~~~~ include/asm-generic/bug.h:121:32: note: in definition of macro 'WARN_ON' 121 | int __ret_warn_on = !!(condition); \ | ^~~~~~~~~ include/linux/gfp.h:564:9: note: in expansion of macro 'VM_WARN_ON' 564 | VM_WARN_ON((gfp_mask & __GFP_THISNODE) && !node_online(nid)); | ^~~~~~~~~~ In file included from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-arcv2.h:9, from arch/arc/include/asm/irqflags.h:13, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/gfp.h:566:16: error: implicit declaration of function '__alloc_pages'; did you mean '__alloc_pages_node'? [-Werror=implicit-function-declaration] 566 | return __alloc_pages(gfp_mask, order, nid, NULL); | ^~~~~~~~~~~~~ | __alloc_pages_node include/linux/gfp.h:566:16: warning: returning 'int' from a function with return type 'struct page *' makes pointer from integer without a cast [-Wint-conversion] 566 | return __alloc_pages(gfp_mask, order, nid, NULL); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/asm-generic/bug.h:5, from arch/arc/include/asm/bug.h:30, from include/linux/bug.h:5, vim +/MIGRATE_MOVABLE +347 include/linux/gfp.h 6cb062296f73e7 Christoph Lameter 2007-10-16 342 01c0bfe061f309 Wei Yang 2020-06-03 343 static inline int gfp_migratetype(const gfp_t gfp_flags) 467c996c1e1910 Mel Gorman 2007-10-16 344 { 016c13daa5c9e4 Mel Gorman 2015-11-06 345 VM_WARN_ON((gfp_flags & GFP_MOVABLE_MASK) == GFP_MOVABLE_MASK); 016c13daa5c9e4 Mel Gorman 2015-11-06 346 BUILD_BUG_ON((1UL << GFP_MOVABLE_SHIFT) != ___GFP_MOVABLE); 016c13daa5c9e4 Mel Gorman 2015-11-06 @347 BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); 467c996c1e1910 Mel Gorman 2007-10-16 348 467c996c1e1910 Mel Gorman 2007-10-16 @349 if (unlikely(page_group_by_mobility_disabled)) 467c996c1e1910 Mel Gorman 2007-10-16 @350 return MIGRATE_UNMOVABLE; 467c996c1e1910 Mel Gorman 2007-10-16 351 467c996c1e1910 Mel Gorman 2007-10-16 352 /* Group based on mobility */ 016c13daa5c9e4 Mel Gorman 2015-11-06 353 return (gfp_flags & GFP_MOVABLE_MASK) >> GFP_MOVABLE_SHIFT; 467c996c1e1910 Mel Gorman 2007-10-16 354 } dd56b046426760 Mel Gorman 2015-11-06 355 #undef GFP_MOVABLE_MASK dd56b046426760 Mel Gorman 2015-11-06 356 #undef GFP_MOVABLE_SHIFT a2f1b424900715 Andi Kleen 2005-11-05 357 d0164adc89f6bb Mel Gorman 2015-11-06 358 static inline bool gfpflags_allow_blocking(const gfp_t gfp_flags) d0164adc89f6bb Mel Gorman 2015-11-06 359 { 543dfb2df8ebb3 Joshua Clayton 2016-01-14 360 return !!(gfp_flags & __GFP_DIRECT_RECLAIM); d0164adc89f6bb Mel Gorman 2015-11-06 361 } d0164adc89f6bb Mel Gorman 2015-11-06 362 20eb4f29b60286 Tejun Heo 2019-10-24 363 /** 20eb4f29b60286 Tejun Heo 2019-10-24 364 * gfpflags_normal_context - is gfp_flags a normal sleepable context? 20eb4f29b60286 Tejun Heo 2019-10-24 365 * @gfp_flags: gfp_flags to test 20eb4f29b60286 Tejun Heo 2019-10-24 366 * 20eb4f29b60286 Tejun Heo 2019-10-24 367 * Test whether @gfp_flags indicates that the allocation is from the 20eb4f29b60286 Tejun Heo 2019-10-24 368 * %current context and allowed to sleep. 20eb4f29b60286 Tejun Heo 2019-10-24 369 * 20eb4f29b60286 Tejun Heo 2019-10-24 370 * An allocation being allowed to block doesn't mean it owns the %current 20eb4f29b60286 Tejun Heo 2019-10-24 371 * context. When direct reclaim path tries to allocate memory, the 20eb4f29b60286 Tejun Heo 2019-10-24 372 * allocation context is nested inside whatever %current was doing at the 20eb4f29b60286 Tejun Heo 2019-10-24 373 * time of the original allocation. The nested allocation may be allowed 20eb4f29b60286 Tejun Heo 2019-10-24 374 * to block but modifying anything %current owns can corrupt the outer 20eb4f29b60286 Tejun Heo 2019-10-24 375 * context's expectations. 20eb4f29b60286 Tejun Heo 2019-10-24 376 * 20eb4f29b60286 Tejun Heo 2019-10-24 377 * %true result from this function indicates that the allocation context 20eb4f29b60286 Tejun Heo 2019-10-24 378 * can sleep and use anything that's associated with %current. 20eb4f29b60286 Tejun Heo 2019-10-24 379 */ 20eb4f29b60286 Tejun Heo 2019-10-24 380 static inline bool gfpflags_normal_context(const gfp_t gfp_flags) 20eb4f29b60286 Tejun Heo 2019-10-24 381 { 20eb4f29b60286 Tejun Heo 2019-10-24 382 return (gfp_flags & (__GFP_DIRECT_RECLAIM | __GFP_MEMALLOC)) == 20eb4f29b60286 Tejun Heo 2019-10-24 383 __GFP_DIRECT_RECLAIM; 20eb4f29b60286 Tejun Heo 2019-10-24 384 } 20eb4f29b60286 Tejun Heo 2019-10-24 385 b70d94ee438b3f Christoph Lameter 2009-06-16 386 #ifdef CONFIG_HIGHMEM b70d94ee438b3f Christoph Lameter 2009-06-16 387 #define OPT_ZONE_HIGHMEM ZONE_HIGHMEM b70d94ee438b3f Christoph Lameter 2009-06-16 388 #else b70d94ee438b3f Christoph Lameter 2009-06-16 389 #define OPT_ZONE_HIGHMEM ZONE_NORMAL b70d94ee438b3f Christoph Lameter 2009-06-16 390 #endif b70d94ee438b3f Christoph Lameter 2009-06-16 391 4b51d66989218a Christoph Lameter 2007-02-10 392 #ifdef CONFIG_ZONE_DMA b70d94ee438b3f Christoph Lameter 2009-06-16 393 #define OPT_ZONE_DMA ZONE_DMA b70d94ee438b3f Christoph Lameter 2009-06-16 394 #else b70d94ee438b3f Christoph Lameter 2009-06-16 395 #define OPT_ZONE_DMA ZONE_NORMAL 4b51d66989218a Christoph Lameter 2007-02-10 396 #endif b70d94ee438b3f Christoph Lameter 2009-06-16 397 4e4785bcf0c850 Christoph Lameter 2006-09-25 398 #ifdef CONFIG_ZONE_DMA32 b70d94ee438b3f Christoph Lameter 2009-06-16 399 #define OPT_ZONE_DMA32 ZONE_DMA32 b70d94ee438b3f Christoph Lameter 2009-06-16 400 #else b70d94ee438b3f Christoph Lameter 2009-06-16 401 #define OPT_ZONE_DMA32 ZONE_NORMAL 4e4785bcf0c850 Christoph Lameter 2006-09-25 402 #endif b70d94ee438b3f Christoph Lameter 2009-06-16 403 b70d94ee438b3f Christoph Lameter 2009-06-16 404 /* b70d94ee438b3f Christoph Lameter 2009-06-16 405 * GFP_ZONE_TABLE is a word size bitstring that is used for looking up the ac2e8e40acf4c7 Hao Lee 2017-05-03 406 * zone to use given the lowest 4 bits of gfp_t. Entries are GFP_ZONES_SHIFT ac2e8e40acf4c7 Hao Lee 2017-05-03 407 * bits long and there are 16 of them to cover all possible combinations of 263ff5d8e82e57 matt mooney 2010-05-24 408 * __GFP_DMA, __GFP_DMA32, __GFP_MOVABLE and __GFP_HIGHMEM. b70d94ee438b3f Christoph Lameter 2009-06-16 409 * b70d94ee438b3f Christoph Lameter 2009-06-16 410 * The zone fallback order is MOVABLE=>HIGHMEM=>NORMAL=>DMA32=>DMA. b70d94ee438b3f Christoph Lameter 2009-06-16 411 * But GFP_MOVABLE is not only a zone specifier but also an allocation b70d94ee438b3f Christoph Lameter 2009-06-16 412 * policy. Therefore __GFP_MOVABLE plus another zone selector is valid. 263ff5d8e82e57 matt mooney 2010-05-24 413 * Only 1 bit of the lowest 3 bits (DMA,DMA32,HIGHMEM) can be set to "1". b70d94ee438b3f Christoph Lameter 2009-06-16 414 * b70d94ee438b3f Christoph Lameter 2009-06-16 415 * bit result b70d94ee438b3f Christoph Lameter 2009-06-16 416 * ================= b70d94ee438b3f Christoph Lameter 2009-06-16 417 * 0x0 => NORMAL b70d94ee438b3f Christoph Lameter 2009-06-16 418 * 0x1 => DMA or NORMAL b70d94ee438b3f Christoph Lameter 2009-06-16 419 * 0x2 => HIGHMEM or NORMAL b70d94ee438b3f Christoph Lameter 2009-06-16 420 * 0x3 => BAD (DMA+HIGHMEM) 4b33b6959581d5 Huaisheng Ye 2018-06-07 421 * 0x4 => DMA32 or NORMAL b70d94ee438b3f Christoph Lameter 2009-06-16 422 * 0x5 => BAD (DMA+DMA32) b70d94ee438b3f Christoph Lameter 2009-06-16 423 * 0x6 => BAD (HIGHMEM+DMA32) b70d94ee438b3f Christoph Lameter 2009-06-16 424 * 0x7 => BAD (HIGHMEM+DMA32+DMA) b70d94ee438b3f Christoph Lameter 2009-06-16 425 * 0x8 => NORMAL (MOVABLE+0) b70d94ee438b3f Christoph Lameter 2009-06-16 426 * 0x9 => DMA or NORMAL (MOVABLE+DMA) b70d94ee438b3f Christoph Lameter 2009-06-16 427 * 0xa => MOVABLE (Movable is valid only if HIGHMEM is set too) b70d94ee438b3f Christoph Lameter 2009-06-16 428 * 0xb => BAD (MOVABLE+HIGHMEM+DMA) 4b33b6959581d5 Huaisheng Ye 2018-06-07 429 * 0xc => DMA32 or NORMAL (MOVABLE+DMA32) b70d94ee438b3f Christoph Lameter 2009-06-16 430 * 0xd => BAD (MOVABLE+DMA32+DMA) b70d94ee438b3f Christoph Lameter 2009-06-16 431 * 0xe => BAD (MOVABLE+DMA32+HIGHMEM) b70d94ee438b3f Christoph Lameter 2009-06-16 432 * 0xf => BAD (MOVABLE+DMA32+HIGHMEM+DMA) b70d94ee438b3f Christoph Lameter 2009-06-16 433 * b11a7b94100cba Dan Williams 2016-03-17 434 * GFP_ZONES_SHIFT must be <= 2 on 32 bit platforms. b70d94ee438b3f Christoph Lameter 2009-06-16 435 */ b70d94ee438b3f Christoph Lameter 2009-06-16 436 b11a7b94100cba Dan Williams 2016-03-17 437 #if defined(CONFIG_ZONE_DEVICE) && (MAX_NR_ZONES-1) <= 4 b11a7b94100cba Dan Williams 2016-03-17 438 /* ZONE_DEVICE is not a valid GFP zone specifier */ b11a7b94100cba Dan Williams 2016-03-17 439 #define GFP_ZONES_SHIFT 2 b11a7b94100cba Dan Williams 2016-03-17 440 #else b11a7b94100cba Dan Williams 2016-03-17 @441 #define GFP_ZONES_SHIFT ZONES_SHIFT b11a7b94100cba Dan Williams 2016-03-17 442 #endif b11a7b94100cba Dan Williams 2016-03-17 443 b11a7b94100cba Dan Williams 2016-03-17 444 #if 16 * GFP_ZONES_SHIFT > BITS_PER_LONG b11a7b94100cba Dan Williams 2016-03-17 445 #error GFP_ZONES_SHIFT too large to create GFP_ZONE_TABLE integer b70d94ee438b3f Christoph Lameter 2009-06-16 446 #endif b70d94ee438b3f Christoph Lameter 2009-06-16 447 b70d94ee438b3f Christoph Lameter 2009-06-16 448 #define GFP_ZONE_TABLE ( \ b11a7b94100cba Dan Williams 2016-03-17 449 (ZONE_NORMAL << 0 * GFP_ZONES_SHIFT) \ b11a7b94100cba Dan Williams 2016-03-17 450 | (OPT_ZONE_DMA << ___GFP_DMA * GFP_ZONES_SHIFT) \ b11a7b94100cba Dan Williams 2016-03-17 451 | (OPT_ZONE_HIGHMEM << ___GFP_HIGHMEM * GFP_ZONES_SHIFT) \ b11a7b94100cba Dan Williams 2016-03-17 452 | (OPT_ZONE_DMA32 << ___GFP_DMA32 * GFP_ZONES_SHIFT) \ b11a7b94100cba Dan Williams 2016-03-17 453 | (ZONE_NORMAL << ___GFP_MOVABLE * GFP_ZONES_SHIFT) \ b11a7b94100cba Dan Williams 2016-03-17 454 | (OPT_ZONE_DMA << (___GFP_MOVABLE | ___GFP_DMA) * GFP_ZONES_SHIFT) \ b11a7b94100cba Dan Williams 2016-03-17 455 | (ZONE_MOVABLE << (___GFP_MOVABLE | ___GFP_HIGHMEM) * GFP_ZONES_SHIFT)\ b11a7b94100cba Dan Williams 2016-03-17 456 | (OPT_ZONE_DMA32 << (___GFP_MOVABLE | ___GFP_DMA32) * GFP_ZONES_SHIFT)\ b70d94ee438b3f Christoph Lameter 2009-06-16 457 ) b70d94ee438b3f Christoph Lameter 2009-06-16 458 b70d94ee438b3f Christoph Lameter 2009-06-16 459 /* 263ff5d8e82e57 matt mooney 2010-05-24 460 * GFP_ZONE_BAD is a bitmap for all combinations of __GFP_DMA, __GFP_DMA32 b70d94ee438b3f Christoph Lameter 2009-06-16 461 * __GFP_HIGHMEM and __GFP_MOVABLE that are not permitted. One flag per b70d94ee438b3f Christoph Lameter 2009-06-16 462 * entry starting with bit 0. Bit is set if the combination is not b70d94ee438b3f Christoph Lameter 2009-06-16 463 * allowed. b70d94ee438b3f Christoph Lameter 2009-06-16 464 */ b70d94ee438b3f Christoph Lameter 2009-06-16 465 #define GFP_ZONE_BAD ( \ 16b56cf4b8a0fa Namhyung Kim 2010-10-26 466 1 << (___GFP_DMA | ___GFP_HIGHMEM) \ 16b56cf4b8a0fa Namhyung Kim 2010-10-26 467 | 1 << (___GFP_DMA | ___GFP_DMA32) \ 16b56cf4b8a0fa Namhyung Kim 2010-10-26 468 | 1 << (___GFP_DMA32 | ___GFP_HIGHMEM) \ 16b56cf4b8a0fa Namhyung Kim 2010-10-26 469 | 1 << (___GFP_DMA | ___GFP_DMA32 | ___GFP_HIGHMEM) \ 16b56cf4b8a0fa Namhyung Kim 2010-10-26 470 | 1 << (___GFP_MOVABLE | ___GFP_HIGHMEM | ___GFP_DMA) \ 16b56cf4b8a0fa Namhyung Kim 2010-10-26 471 | 1 << (___GFP_MOVABLE | ___GFP_DMA32 | ___GFP_DMA) \ 16b56cf4b8a0fa Namhyung Kim 2010-10-26 472 | 1 << (___GFP_MOVABLE | ___GFP_DMA32 | ___GFP_HIGHMEM) \ 16b56cf4b8a0fa Namhyung Kim 2010-10-26 473 | 1 << (___GFP_MOVABLE | ___GFP_DMA32 | ___GFP_DMA | ___GFP_HIGHMEM) \ b70d94ee438b3f Christoph Lameter 2009-06-16 474 ) b70d94ee438b3f Christoph Lameter 2009-06-16 475 b70d94ee438b3f Christoph Lameter 2009-06-16 476 static inline enum zone_type gfp_zone(gfp_t flags) b70d94ee438b3f Christoph Lameter 2009-06-16 477 { b70d94ee438b3f Christoph Lameter 2009-06-16 478 enum zone_type z; 16b56cf4b8a0fa Namhyung Kim 2010-10-26 479 int bit = (__force int) (flags & GFP_ZONEMASK); b70d94ee438b3f Christoph Lameter 2009-06-16 480 b11a7b94100cba Dan Williams 2016-03-17 481 z = (GFP_ZONE_TABLE >> (bit * GFP_ZONES_SHIFT)) & b11a7b94100cba Dan Williams 2016-03-17 482 ((1 << GFP_ZONES_SHIFT) - 1); 82d4b5779a7588 Dave Hansen 2011-05-24 483 VM_BUG_ON((GFP_ZONE_BAD >> bit) & 1); b70d94ee438b3f Christoph Lameter 2009-06-16 484 return z; 4e4785bcf0c850 Christoph Lameter 2006-09-25 485 } 4e4785bcf0c850 Christoph Lameter 2006-09-25 486 ^1da177e4c3f41 Linus Torvalds 2005-04-16 487 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 488 * There is only one page-allocator function, and two main namespaces to ^1da177e4c3f41 Linus Torvalds 2005-04-16 489 * it. The alloc_page*() variants return 'struct page *' and as such ^1da177e4c3f41 Linus Torvalds 2005-04-16 490 * can allocate highmem pages, the *get*page*() variants return ^1da177e4c3f41 Linus Torvalds 2005-04-16 491 * virtual kernel addresses to the allocated page(s). ^1da177e4c3f41 Linus Torvalds 2005-04-16 492 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 493 54a6eb5c4765aa Mel Gorman 2008-04-28 494 static inline int gfp_zonelist(gfp_t flags) 54a6eb5c4765aa Mel Gorman 2008-04-28 495 { c00eb15a8914b8 Yaowei Bai 2016-01-14 496 #ifdef CONFIG_NUMA c00eb15a8914b8 Yaowei Bai 2016-01-14 497 if (unlikely(flags & __GFP_THISNODE)) c00eb15a8914b8 Yaowei Bai 2016-01-14 498 return ZONELIST_NOFALLBACK; c00eb15a8914b8 Yaowei Bai 2016-01-14 499 #endif c00eb15a8914b8 Yaowei Bai 2016-01-14 @500 return ZONELIST_FALLBACK; 54a6eb5c4765aa Mel Gorman 2008-04-28 501 } 54a6eb5c4765aa Mel Gorman 2008-04-28 502 ^1da177e4c3f41 Linus Torvalds 2005-04-16 503 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 504 * We get the zone list from the current node and the gfp_mask. cb152a1a95606a Shijie Luo 2021-05-06 505 * This zone list contains a maximum of MAX_NUMNODES*MAX_NR_ZONES zones. 54a6eb5c4765aa Mel Gorman 2008-04-28 506 * There are two zonelists per node, one for all zones with memory and 54a6eb5c4765aa Mel Gorman 2008-04-28 507 * one containing just zones from the node the zonelist belongs to. ^1da177e4c3f41 Linus Torvalds 2005-04-16 508 * d3c251ab95b69f Mike Rapoport 2021-06-28 509 * For the case of non-NUMA systems the NODE_DATA() gets optimized to d3c251ab95b69f Mike Rapoport 2021-06-28 510 * &contig_page_data at compile-time. ^1da177e4c3f41 Linus Torvalds 2005-04-16 511 */ 0e88460da6ab7b Mel Gorman 2008-04-28 512 static inline struct zonelist *node_zonelist(int nid, gfp_t flags) 0e88460da6ab7b Mel Gorman 2008-04-28 513 { 54a6eb5c4765aa Mel Gorman 2008-04-28 @514 return NODE_DATA(nid)->node_zonelists + gfp_zonelist(flags); 0e88460da6ab7b Mel Gorman 2008-04-28 515 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 516 ^1da177e4c3f41 Linus Torvalds 2005-04-16 517 #ifndef HAVE_ARCH_FREE_PAGE ^1da177e4c3f41 Linus Torvalds 2005-04-16 518 static inline void arch_free_page(struct page *page, int order) { } ^1da177e4c3f41 Linus Torvalds 2005-04-16 519 #endif cc102509074bba Nicholas Piggin 2006-12-06 520 #ifndef HAVE_ARCH_ALLOC_PAGE cc102509074bba Nicholas Piggin 2006-12-06 521 static inline void arch_alloc_page(struct page *page, int order) { } cc102509074bba Nicholas Piggin 2006-12-06 522 #endif ^1da177e4c3f41 Linus Torvalds 2005-04-16 523 84172f4bb75242 Matthew Wilcox (Oracle 2021-04-29 524) struct page *__alloc_pages(gfp_t gfp, unsigned int order, int preferred_nid, 04ec6264f28793 Vlastimil Babka 2017-07-06 @525 nodemask_t *nodemask); da90006b76b648 Andrew Morton 2021-09-16 526 struct folio *__folio_alloc(gfp_t gfp, unsigned int order, int preferred_nid, da90006b76b648 Andrew Morton 2021-09-16 527 nodemask_t *nodemask); e4048e5dc4aece KOSAKI Motohiro 2008-07-23 528 387ba26fb1cb9b Mel Gorman 2021-04-29 529 unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid, 387ba26fb1cb9b Mel Gorman 2021-04-29 530 nodemask_t *nodemask, int nr_pages, 0f87d9d30f2139 Mel Gorman 2021-04-29 531 struct list_head *page_list, 0f87d9d30f2139 Mel Gorman 2021-04-29 532 struct page **page_array); 387ba26fb1cb9b Mel Gorman 2021-04-29 533 387ba26fb1cb9b Mel Gorman 2021-04-29 534 /* Bulk allocate order-0 pages */ 387ba26fb1cb9b Mel Gorman 2021-04-29 535 static inline unsigned long 0f87d9d30f2139 Mel Gorman 2021-04-29 536 alloc_pages_bulk_list(gfp_t gfp, unsigned long nr_pages, struct list_head *list) 387ba26fb1cb9b Mel Gorman 2021-04-29 537 { 0f87d9d30f2139 Mel Gorman 2021-04-29 @538 return __alloc_pages_bulk(gfp, numa_mem_id(), NULL, nr_pages, list, NULL); 0f87d9d30f2139 Mel Gorman 2021-04-29 539 } 0f87d9d30f2139 Mel Gorman 2021-04-29 540 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org [-- Attachment #2: config.gz --] [-- Type: application/gzip, Size: 41296 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC v2 PATCH 2/3] mm: replace custom PG2KB/KB2PG macros with common ones 2021-09-19 13:12 ` [RFC v2 PATCH 2/3] mm: replace custom PG2KB/KB2PG macros with common ones Oleksandr Natalenko 2021-09-19 15:35 ` kernel test robot @ 2021-09-19 17:13 ` kernel test robot 1 sibling, 0 replies; 8+ messages in thread From: kernel test robot @ 2021-09-19 17:13 UTC (permalink / raw) To: kbuild-all [-- Attachment #1: Type: text/plain, Size: 41398 bytes --] Hi Oleksandr, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on hnaz-mm/master] url: https://github.com/0day-ci/linux/commits/Oleksandr-Natalenko/mm-common-PAGE_SIZE-shift-macros/20210919-211421 base: https://github.com/hnaz/linux-mm master config: arc-randconfig-r014-20210919 (attached as .config) compiler: arceb-elf-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/c129ed106a8dd29030e8585cb39a779de91aaa6a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Oleksandr-Natalenko/mm-common-PAGE_SIZE-shift-macros/20210919-211421 git checkout c129ed106a8dd29030e8585cb39a779de91aaa6a # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc prepare If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com> All error/warnings (new ones prefixed by >>): arch/arc/Makefile:26: ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '' is unknown, fallback to '' error: no override and no default toolchain set init/Kconfig:70:warning: 'RUSTC_VERSION': number is invalid In file included from ./arch/arc/include/generated/asm/div64.h:1, from include/linux/math.h:5, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/preempt.h:11, from include/linux/percpu.h:6, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-compact.h:16, from arch/arc/include/asm/irqflags.h:11, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/math64.h: In function 'div_u64_rem': >> include/asm-generic/div64.h:224:13: error: implicit declaration of function 'is_power_of_2' [-Werror=implicit-function-declaration] 224 | is_power_of_2(__base)) { \ | ^~~~~~~~~~~~~ include/linux/math64.h:92:22: note: in expansion of macro 'do_div' 92 | *remainder = do_div(dividend, divisor); | ^~~~~~ >> include/asm-generic/div64.h:226:25: error: implicit declaration of function 'ilog2' [-Werror=implicit-function-declaration] 226 | (n) >>= ilog2(__base); \ | ^~~~~ include/linux/math64.h:92:22: note: in expansion of macro 'do_div' 92 | *remainder = do_div(dividend, divisor); | ^~~~~~ In file included from include/asm-generic/preempt.h:5, from ./arch/arc/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/percpu.h:6, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-compact.h:16, from arch/arc/include/asm/irqflags.h:11, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/thread_info.h: In function 'set_ti_thread_flag': >> include/linux/thread_info.h:89:9: error: implicit declaration of function 'set_bit' [-Werror=implicit-function-declaration] 89 | set_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~ include/linux/thread_info.h: In function 'clear_ti_thread_flag': >> include/linux/thread_info.h:94:9: error: implicit declaration of function 'clear_bit' [-Werror=implicit-function-declaration] 94 | clear_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~~~ include/linux/thread_info.h: In function 'test_and_set_ti_thread_flag': >> include/linux/thread_info.h:108:16: error: implicit declaration of function 'test_and_set_bit' [-Werror=implicit-function-declaration] 108 | return test_and_set_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~~~~~~~~~~ include/linux/thread_info.h: In function 'test_and_clear_ti_thread_flag': >> include/linux/thread_info.h:113:16: error: implicit declaration of function 'test_and_clear_bit' [-Werror=implicit-function-declaration] 113 | return test_and_clear_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~~~~~~~~~~~~ include/linux/thread_info.h: In function 'test_ti_thread_flag': >> include/linux/thread_info.h:118:16: error: implicit declaration of function 'test_bit'; did you mean 'test_taint'? [-Werror=implicit-function-declaration] 118 | return test_bit(flag, (unsigned long *)&ti->flags); | ^~~~~~~~ | test_taint In file included from include/linux/cpumask.h:12, from include/linux/smp.h:13, from include/linux/percpu.h:7, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-compact.h:16, from arch/arc/include/asm/irqflags.h:11, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/bitmap.h: In function 'bitmap_empty': >> include/linux/bitmap.h:391:16: error: implicit declaration of function 'find_first_bit'; did you mean 'sched_find_first_bit'? [-Werror=implicit-function-declaration] 391 | return find_first_bit(src, nbits) == nbits; | ^~~~~~~~~~~~~~ | sched_find_first_bit include/linux/bitmap.h: In function 'bitmap_full': >> include/linux/bitmap.h:399:16: error: implicit declaration of function 'find_first_zero_bit' [-Werror=implicit-function-declaration] 399 | return find_first_zero_bit(src, nbits) == nbits; | ^~~~~~~~~~~~~~~~~~~ include/linux/bitmap.h: In function 'bitmap_weight': >> include/linux/bitmap.h:405:24: error: implicit declaration of function 'hweight_long' [-Werror=implicit-function-declaration] 405 | return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits)); | ^~~~~~~~~~~~ include/linux/bitmap.h: In function 'bitmap_set': >> include/linux/bitmap.h:413:17: error: implicit declaration of function '__set_bit' [-Werror=implicit-function-declaration] 413 | __set_bit(start, map); | ^~~~~~~~~ include/linux/bitmap.h: In function 'bitmap_clear': >> include/linux/bitmap.h:427:17: error: implicit declaration of function '__clear_bit' [-Werror=implicit-function-declaration] 427 | __clear_bit(start, map); | ^~~~~~~~~~~ include/linux/bitmap.h: In function 'bitmap_next_clear_region': >> include/linux/bitmap.h:471:15: error: implicit declaration of function 'find_next_zero_bit' [-Werror=implicit-function-declaration] 471 | *rs = find_next_zero_bit(bitmap, end, *rs); | ^~~~~~~~~~~~~~~~~~ >> include/linux/bitmap.h:472:15: error: implicit declaration of function 'find_next_bit' [-Werror=implicit-function-declaration] 472 | *re = find_next_bit(bitmap, end, *rs + 1); | ^~~~~~~~~~~~~ In file included from include/linux/smp.h:13, from include/linux/percpu.h:7, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-compact.h:16, from arch/arc/include/asm/irqflags.h:11, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/cpumask.h: In function 'cpumask_last': >> include/linux/cpumask.h:206:16: error: implicit declaration of function 'find_last_bit' [-Werror=implicit-function-declaration] 206 | return find_last_bit(cpumask_bits(srcp), nr_cpumask_bits); | ^~~~~~~~~~~~~ include/linux/cpumask.h: In function 'num_online_cpus': >> include/linux/cpumask.h:887:16: error: implicit declaration of function 'atomic_read' [-Werror=implicit-function-declaration] 887 | return atomic_read(&__num_online_cpus); | ^~~~~~~~~~~ In file included from include/linux/smp_types.h:5, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/arch_topology.h:9, from include/linux/topology.h:30, from include/linux/gfp.h:9, from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-compact.h:16, from arch/arc/include/asm/irqflags.h:11, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/llist.h: In function 'llist_del_all': >> include/linux/llist.h:237:16: error: implicit declaration of function 'xchg' [-Werror=implicit-function-declaration] 237 | return xchg(&head->first, NULL); | ^~~~ >> include/linux/llist.h:237:16: warning: returning 'int' from a function with return type 'struct llist_node *' makes pointer from integer without a cast [-Wint-conversion] 237 | return xchg(&head->first, NULL); | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from <command-line>: include/linux/gfp.h: In function 'gfp_migratetype': >> include/linux/gfp.h:347:63: error: 'MIGRATE_MOVABLE' undeclared (first use in this function) 347 | BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); | ^~~~~~~~~~~~~~~ include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert' 302 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert' 322 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ include/linux/gfp.h:347:9: note: in expansion of macro 'BUILD_BUG_ON' 347 | BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); | ^~~~~~~~~~~~ include/linux/gfp.h:347:63: note: each undeclared identifier is reported only once for each function it appears in 347 | BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); | ^~~~~~~~~~~~~~~ include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert' 302 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert' 322 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ include/linux/gfp.h:347:9: note: in expansion of macro 'BUILD_BUG_ON' 347 | BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); | ^~~~~~~~~~~~ In file included from include/asm-generic/bug.h:5, from arch/arc/include/asm/bug.h:30, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: >> include/linux/gfp.h:349:22: error: 'page_group_by_mobility_disabled' undeclared (first use in this function) 349 | if (unlikely(page_group_by_mobility_disabled)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:78:45: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ In file included from include/linux/mm.h:10, from arch/arc/include/asm/arcregs.h:149, from arch/arc/include/asm/irqflags-compact.h:16, from arch/arc/include/asm/irqflags.h:11, from include/linux/irqflags.h:16, from arch/arc/include/asm/smp.h:102, from arch/arc/include/asm/cmpxchg.h:13, from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:33, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/gfp.h:350:24: error: 'MIGRATE_UNMOVABLE' undeclared (first use in this function) 350 | return MIGRATE_UNMOVABLE; | ^~~~~~~~~~~~~~~~~ include/linux/gfp.h: At top level: include/linux/gfp.h:441:25: warning: "ZONES_SHIFT" is not defined, evaluates to 0 [-Wundef] 441 | #define GFP_ZONES_SHIFT ZONES_SHIFT | ^~~~~~~~~~~ include/linux/gfp.h:444:10: note: in expansion of macro 'GFP_ZONES_SHIFT' 444 | #if 16 * GFP_ZONES_SHIFT > BITS_PER_LONG | ^~~~~~~~~~~~~~~ include/linux/gfp.h: In function 'gfp_zone': include/linux/gfp.h:441:25: error: 'ZONES_SHIFT' undeclared (first use in this function); did you mean 'NMI_SHIFT'? 441 | #define GFP_ZONES_SHIFT ZONES_SHIFT | ^~~~~~~~~~~ include/linux/gfp.h:449:29: note: in expansion of macro 'GFP_ZONES_SHIFT' 449 | (ZONE_NORMAL << 0 * GFP_ZONES_SHIFT) \ | ^~~~~~~~~~~~~~~ include/linux/gfp.h:481:14: note: in expansion of macro 'GFP_ZONE_TABLE' 481 | z = (GFP_ZONE_TABLE >> (bit * GFP_ZONES_SHIFT)) & | ^~~~~~~~~~~~~~ include/linux/gfp.h: In function 'gfp_zonelist': include/linux/gfp.h:500:16: error: 'ZONELIST_FALLBACK' undeclared (first use in this function) 500 | return ZONELIST_FALLBACK; | ^~~~~~~~~~~~~~~~~ include/linux/gfp.h: In function 'node_zonelist': include/linux/gfp.h:514:16: error: implicit declaration of function 'NODE_DATA' [-Werror=implicit-function-declaration] 514 | return NODE_DATA(nid)->node_zonelists + gfp_zonelist(flags); | ^~~~~~~~~ include/linux/gfp.h:514:30: error: invalid type argument of '->' (have 'int') 514 | return NODE_DATA(nid)->node_zonelists + gfp_zonelist(flags); | ^~ include/linux/gfp.h: At top level: include/linux/gfp.h:525:17: error: unknown type name 'nodemask_t' 525 | nodemask_t *nodemask); | ^~~~~~~~~~ include/linux/gfp.h:527:17: error: unknown type name 'nodemask_t' 527 | nodemask_t *nodemask); | ^~~~~~~~~~ include/linux/gfp.h:530:33: error: unknown type name 'nodemask_t' 530 | nodemask_t *nodemask, int nr_pages, | ^~~~~~~~~~ include/linux/gfp.h: In function 'alloc_pages_bulk_list': include/linux/gfp.h:538:16: error: implicit declaration of function '__alloc_pages_bulk'; did you mean 'alloc_pages_bulk_list'? [-Werror=implicit-function-declaration] 538 | return __alloc_pages_bulk(gfp, numa_mem_id(), NULL, nr_pages, list, NULL); | ^~~~~~~~~~~~~~~~~~ | alloc_pages_bulk_list include/linux/gfp.h: In function 'alloc_pages_bulk_array_node': include/linux/gfp.h:550:20: error: 'NUMA_NO_NODE' undeclared (first use in this function) 550 | if (nid == NUMA_NO_NODE) | ^~~~~~~~~~~~ In file included from include/asm-generic/bug.h:5, from arch/arc/include/asm/bug.h:30, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: include/linux/gfp.h: In function '__alloc_pages_node': include/linux/gfp.h:563:37: error: 'MAX_NUMNODES' undeclared (first use in this function) 563 | VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES); | ^~~~~~~~~~~~ include/linux/compiler.h:78:45: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/mmdebug.h:17:25: note: in expansion of macro 'BUG_ON' 17 | #define VM_BUG_ON(cond) BUG_ON(cond) | ^~~~~~ include/linux/gfp.h:563:9: note: in expansion of macro 'VM_BUG_ON' 563 | VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES); | ^~~~~~~~~ In file included from arch/arc/include/asm/bug.h:30, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: include/linux/gfp.h:564:52: error: implicit declaration of function 'node_online'; did you mean 'node_zonelist'? [-Werror=implicit-function-declaration] 564 | VM_WARN_ON((gfp_mask & __GFP_THISNODE) && !node_online(nid)); | ^~~~~~~~~~~ include/asm-generic/bug.h:121:32: note: in definition of macro 'WARN_ON' 121 | int __ret_warn_on = !!(condition); \ | ^~~~~~~~~ include/linux/gfp.h:564:9: note: in expansion of macro 'VM_WARN_ON' 564 | VM_WARN_ON((gfp_mask & __GFP_THISNODE) && !node_online(nid)); | ^~~~~~~~~~ vim +/MIGRATE_MOVABLE +347 include/linux/gfp.h 6cb062296f73e747 Christoph Lameter 2007-10-16 342 01c0bfe061f309b8 Wei Yang 2020-06-03 343 static inline int gfp_migratetype(const gfp_t gfp_flags) 467c996c1e191063 Mel Gorman 2007-10-16 344 { 016c13daa5c9e482 Mel Gorman 2015-11-06 345 VM_WARN_ON((gfp_flags & GFP_MOVABLE_MASK) == GFP_MOVABLE_MASK); 016c13daa5c9e482 Mel Gorman 2015-11-06 346 BUILD_BUG_ON((1UL << GFP_MOVABLE_SHIFT) != ___GFP_MOVABLE); 016c13daa5c9e482 Mel Gorman 2015-11-06 @347 BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); 467c996c1e191063 Mel Gorman 2007-10-16 348 467c996c1e191063 Mel Gorman 2007-10-16 @349 if (unlikely(page_group_by_mobility_disabled)) 467c996c1e191063 Mel Gorman 2007-10-16 @350 return MIGRATE_UNMOVABLE; 467c996c1e191063 Mel Gorman 2007-10-16 351 467c996c1e191063 Mel Gorman 2007-10-16 352 /* Group based on mobility */ 016c13daa5c9e482 Mel Gorman 2015-11-06 353 return (gfp_flags & GFP_MOVABLE_MASK) >> GFP_MOVABLE_SHIFT; 467c996c1e191063 Mel Gorman 2007-10-16 354 } dd56b046426760aa Mel Gorman 2015-11-06 355 #undef GFP_MOVABLE_MASK dd56b046426760aa Mel Gorman 2015-11-06 356 #undef GFP_MOVABLE_SHIFT a2f1b424900715ed Andi Kleen 2005-11-05 357 d0164adc89f6bb37 Mel Gorman 2015-11-06 358 static inline bool gfpflags_allow_blocking(const gfp_t gfp_flags) d0164adc89f6bb37 Mel Gorman 2015-11-06 359 { 543dfb2df8ebb3eb Joshua Clayton 2016-01-14 360 return !!(gfp_flags & __GFP_DIRECT_RECLAIM); d0164adc89f6bb37 Mel Gorman 2015-11-06 361 } d0164adc89f6bb37 Mel Gorman 2015-11-06 362 20eb4f29b60286e0 Tejun Heo 2019-10-24 363 /** 20eb4f29b60286e0 Tejun Heo 2019-10-24 364 * gfpflags_normal_context - is gfp_flags a normal sleepable context? 20eb4f29b60286e0 Tejun Heo 2019-10-24 365 * @gfp_flags: gfp_flags to test 20eb4f29b60286e0 Tejun Heo 2019-10-24 366 * 20eb4f29b60286e0 Tejun Heo 2019-10-24 367 * Test whether @gfp_flags indicates that the allocation is from the 20eb4f29b60286e0 Tejun Heo 2019-10-24 368 * %current context and allowed to sleep. 20eb4f29b60286e0 Tejun Heo 2019-10-24 369 * 20eb4f29b60286e0 Tejun Heo 2019-10-24 370 * An allocation being allowed to block doesn't mean it owns the %current 20eb4f29b60286e0 Tejun Heo 2019-10-24 371 * context. When direct reclaim path tries to allocate memory, the 20eb4f29b60286e0 Tejun Heo 2019-10-24 372 * allocation context is nested inside whatever %current was doing at the 20eb4f29b60286e0 Tejun Heo 2019-10-24 373 * time of the original allocation. The nested allocation may be allowed 20eb4f29b60286e0 Tejun Heo 2019-10-24 374 * to block but modifying anything %current owns can corrupt the outer 20eb4f29b60286e0 Tejun Heo 2019-10-24 375 * context's expectations. 20eb4f29b60286e0 Tejun Heo 2019-10-24 376 * 20eb4f29b60286e0 Tejun Heo 2019-10-24 377 * %true result from this function indicates that the allocation context 20eb4f29b60286e0 Tejun Heo 2019-10-24 378 * can sleep and use anything that's associated with %current. 20eb4f29b60286e0 Tejun Heo 2019-10-24 379 */ 20eb4f29b60286e0 Tejun Heo 2019-10-24 380 static inline bool gfpflags_normal_context(const gfp_t gfp_flags) 20eb4f29b60286e0 Tejun Heo 2019-10-24 381 { 20eb4f29b60286e0 Tejun Heo 2019-10-24 382 return (gfp_flags & (__GFP_DIRECT_RECLAIM | __GFP_MEMALLOC)) == 20eb4f29b60286e0 Tejun Heo 2019-10-24 383 __GFP_DIRECT_RECLAIM; 20eb4f29b60286e0 Tejun Heo 2019-10-24 384 } 20eb4f29b60286e0 Tejun Heo 2019-10-24 385 b70d94ee438b3fd9 Christoph Lameter 2009-06-16 386 #ifdef CONFIG_HIGHMEM b70d94ee438b3fd9 Christoph Lameter 2009-06-16 387 #define OPT_ZONE_HIGHMEM ZONE_HIGHMEM b70d94ee438b3fd9 Christoph Lameter 2009-06-16 388 #else b70d94ee438b3fd9 Christoph Lameter 2009-06-16 389 #define OPT_ZONE_HIGHMEM ZONE_NORMAL b70d94ee438b3fd9 Christoph Lameter 2009-06-16 390 #endif b70d94ee438b3fd9 Christoph Lameter 2009-06-16 391 4b51d66989218aad Christoph Lameter 2007-02-10 392 #ifdef CONFIG_ZONE_DMA b70d94ee438b3fd9 Christoph Lameter 2009-06-16 393 #define OPT_ZONE_DMA ZONE_DMA b70d94ee438b3fd9 Christoph Lameter 2009-06-16 394 #else b70d94ee438b3fd9 Christoph Lameter 2009-06-16 395 #define OPT_ZONE_DMA ZONE_NORMAL 4b51d66989218aad Christoph Lameter 2007-02-10 396 #endif b70d94ee438b3fd9 Christoph Lameter 2009-06-16 397 4e4785bcf0c85032 Christoph Lameter 2006-09-25 398 #ifdef CONFIG_ZONE_DMA32 b70d94ee438b3fd9 Christoph Lameter 2009-06-16 399 #define OPT_ZONE_DMA32 ZONE_DMA32 b70d94ee438b3fd9 Christoph Lameter 2009-06-16 400 #else b70d94ee438b3fd9 Christoph Lameter 2009-06-16 401 #define OPT_ZONE_DMA32 ZONE_NORMAL 4e4785bcf0c85032 Christoph Lameter 2006-09-25 402 #endif b70d94ee438b3fd9 Christoph Lameter 2009-06-16 403 b70d94ee438b3fd9 Christoph Lameter 2009-06-16 404 /* b70d94ee438b3fd9 Christoph Lameter 2009-06-16 405 * GFP_ZONE_TABLE is a word size bitstring that is used for looking up the ac2e8e40acf4c73e Hao Lee 2017-05-03 406 * zone to use given the lowest 4 bits of gfp_t. Entries are GFP_ZONES_SHIFT ac2e8e40acf4c73e Hao Lee 2017-05-03 407 * bits long and there are 16 of them to cover all possible combinations of 263ff5d8e82e5772 matt mooney 2010-05-24 408 * __GFP_DMA, __GFP_DMA32, __GFP_MOVABLE and __GFP_HIGHMEM. b70d94ee438b3fd9 Christoph Lameter 2009-06-16 409 * b70d94ee438b3fd9 Christoph Lameter 2009-06-16 410 * The zone fallback order is MOVABLE=>HIGHMEM=>NORMAL=>DMA32=>DMA. b70d94ee438b3fd9 Christoph Lameter 2009-06-16 411 * But GFP_MOVABLE is not only a zone specifier but also an allocation b70d94ee438b3fd9 Christoph Lameter 2009-06-16 412 * policy. Therefore __GFP_MOVABLE plus another zone selector is valid. 263ff5d8e82e5772 matt mooney 2010-05-24 413 * Only 1 bit of the lowest 3 bits (DMA,DMA32,HIGHMEM) can be set to "1". b70d94ee438b3fd9 Christoph Lameter 2009-06-16 414 * b70d94ee438b3fd9 Christoph Lameter 2009-06-16 415 * bit result b70d94ee438b3fd9 Christoph Lameter 2009-06-16 416 * ================= b70d94ee438b3fd9 Christoph Lameter 2009-06-16 417 * 0x0 => NORMAL b70d94ee438b3fd9 Christoph Lameter 2009-06-16 418 * 0x1 => DMA or NORMAL b70d94ee438b3fd9 Christoph Lameter 2009-06-16 419 * 0x2 => HIGHMEM or NORMAL b70d94ee438b3fd9 Christoph Lameter 2009-06-16 420 * 0x3 => BAD (DMA+HIGHMEM) 4b33b6959581d509 Huaisheng Ye 2018-06-07 421 * 0x4 => DMA32 or NORMAL b70d94ee438b3fd9 Christoph Lameter 2009-06-16 422 * 0x5 => BAD (DMA+DMA32) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 423 * 0x6 => BAD (HIGHMEM+DMA32) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 424 * 0x7 => BAD (HIGHMEM+DMA32+DMA) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 425 * 0x8 => NORMAL (MOVABLE+0) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 426 * 0x9 => DMA or NORMAL (MOVABLE+DMA) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 427 * 0xa => MOVABLE (Movable is valid only if HIGHMEM is set too) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 428 * 0xb => BAD (MOVABLE+HIGHMEM+DMA) 4b33b6959581d509 Huaisheng Ye 2018-06-07 429 * 0xc => DMA32 or NORMAL (MOVABLE+DMA32) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 430 * 0xd => BAD (MOVABLE+DMA32+DMA) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 431 * 0xe => BAD (MOVABLE+DMA32+HIGHMEM) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 432 * 0xf => BAD (MOVABLE+DMA32+HIGHMEM+DMA) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 433 * b11a7b94100cba5e Dan Williams 2016-03-17 434 * GFP_ZONES_SHIFT must be <= 2 on 32 bit platforms. b70d94ee438b3fd9 Christoph Lameter 2009-06-16 435 */ b70d94ee438b3fd9 Christoph Lameter 2009-06-16 436 b11a7b94100cba5e Dan Williams 2016-03-17 437 #if defined(CONFIG_ZONE_DEVICE) && (MAX_NR_ZONES-1) <= 4 b11a7b94100cba5e Dan Williams 2016-03-17 438 /* ZONE_DEVICE is not a valid GFP zone specifier */ b11a7b94100cba5e Dan Williams 2016-03-17 439 #define GFP_ZONES_SHIFT 2 b11a7b94100cba5e Dan Williams 2016-03-17 440 #else b11a7b94100cba5e Dan Williams 2016-03-17 @441 #define GFP_ZONES_SHIFT ZONES_SHIFT b11a7b94100cba5e Dan Williams 2016-03-17 442 #endif b11a7b94100cba5e Dan Williams 2016-03-17 443 b11a7b94100cba5e Dan Williams 2016-03-17 444 #if 16 * GFP_ZONES_SHIFT > BITS_PER_LONG b11a7b94100cba5e Dan Williams 2016-03-17 445 #error GFP_ZONES_SHIFT too large to create GFP_ZONE_TABLE integer b70d94ee438b3fd9 Christoph Lameter 2009-06-16 446 #endif b70d94ee438b3fd9 Christoph Lameter 2009-06-16 447 b70d94ee438b3fd9 Christoph Lameter 2009-06-16 448 #define GFP_ZONE_TABLE ( \ b11a7b94100cba5e Dan Williams 2016-03-17 449 (ZONE_NORMAL << 0 * GFP_ZONES_SHIFT) \ b11a7b94100cba5e Dan Williams 2016-03-17 450 | (OPT_ZONE_DMA << ___GFP_DMA * GFP_ZONES_SHIFT) \ b11a7b94100cba5e Dan Williams 2016-03-17 451 | (OPT_ZONE_HIGHMEM << ___GFP_HIGHMEM * GFP_ZONES_SHIFT) \ b11a7b94100cba5e Dan Williams 2016-03-17 452 | (OPT_ZONE_DMA32 << ___GFP_DMA32 * GFP_ZONES_SHIFT) \ b11a7b94100cba5e Dan Williams 2016-03-17 453 | (ZONE_NORMAL << ___GFP_MOVABLE * GFP_ZONES_SHIFT) \ b11a7b94100cba5e Dan Williams 2016-03-17 454 | (OPT_ZONE_DMA << (___GFP_MOVABLE | ___GFP_DMA) * GFP_ZONES_SHIFT) \ b11a7b94100cba5e Dan Williams 2016-03-17 455 | (ZONE_MOVABLE << (___GFP_MOVABLE | ___GFP_HIGHMEM) * GFP_ZONES_SHIFT)\ b11a7b94100cba5e Dan Williams 2016-03-17 456 | (OPT_ZONE_DMA32 << (___GFP_MOVABLE | ___GFP_DMA32) * GFP_ZONES_SHIFT)\ b70d94ee438b3fd9 Christoph Lameter 2009-06-16 457 ) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 458 b70d94ee438b3fd9 Christoph Lameter 2009-06-16 459 /* 263ff5d8e82e5772 matt mooney 2010-05-24 460 * GFP_ZONE_BAD is a bitmap for all combinations of __GFP_DMA, __GFP_DMA32 b70d94ee438b3fd9 Christoph Lameter 2009-06-16 461 * __GFP_HIGHMEM and __GFP_MOVABLE that are not permitted. One flag per b70d94ee438b3fd9 Christoph Lameter 2009-06-16 462 * entry starting with bit 0. Bit is set if the combination is not b70d94ee438b3fd9 Christoph Lameter 2009-06-16 463 * allowed. b70d94ee438b3fd9 Christoph Lameter 2009-06-16 464 */ b70d94ee438b3fd9 Christoph Lameter 2009-06-16 465 #define GFP_ZONE_BAD ( \ 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 466 1 << (___GFP_DMA | ___GFP_HIGHMEM) \ 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 467 | 1 << (___GFP_DMA | ___GFP_DMA32) \ 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 468 | 1 << (___GFP_DMA32 | ___GFP_HIGHMEM) \ 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 469 | 1 << (___GFP_DMA | ___GFP_DMA32 | ___GFP_HIGHMEM) \ 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 470 | 1 << (___GFP_MOVABLE | ___GFP_HIGHMEM | ___GFP_DMA) \ 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 471 | 1 << (___GFP_MOVABLE | ___GFP_DMA32 | ___GFP_DMA) \ 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 472 | 1 << (___GFP_MOVABLE | ___GFP_DMA32 | ___GFP_HIGHMEM) \ 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 473 | 1 << (___GFP_MOVABLE | ___GFP_DMA32 | ___GFP_DMA | ___GFP_HIGHMEM) \ b70d94ee438b3fd9 Christoph Lameter 2009-06-16 474 ) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 475 b70d94ee438b3fd9 Christoph Lameter 2009-06-16 476 static inline enum zone_type gfp_zone(gfp_t flags) b70d94ee438b3fd9 Christoph Lameter 2009-06-16 477 { b70d94ee438b3fd9 Christoph Lameter 2009-06-16 478 enum zone_type z; 16b56cf4b8a0fa9a Namhyung Kim 2010-10-26 479 int bit = (__force int) (flags & GFP_ZONEMASK); b70d94ee438b3fd9 Christoph Lameter 2009-06-16 480 b11a7b94100cba5e Dan Williams 2016-03-17 481 z = (GFP_ZONE_TABLE >> (bit * GFP_ZONES_SHIFT)) & b11a7b94100cba5e Dan Williams 2016-03-17 482 ((1 << GFP_ZONES_SHIFT) - 1); 82d4b5779a758877 Dave Hansen 2011-05-24 483 VM_BUG_ON((GFP_ZONE_BAD >> bit) & 1); b70d94ee438b3fd9 Christoph Lameter 2009-06-16 484 return z; 4e4785bcf0c85032 Christoph Lameter 2006-09-25 485 } 4e4785bcf0c85032 Christoph Lameter 2006-09-25 486 ^1da177e4c3f4152 Linus Torvalds 2005-04-16 487 /* ^1da177e4c3f4152 Linus Torvalds 2005-04-16 488 * There is only one page-allocator function, and two main namespaces to ^1da177e4c3f4152 Linus Torvalds 2005-04-16 489 * it. The alloc_page*() variants return 'struct page *' and as such ^1da177e4c3f4152 Linus Torvalds 2005-04-16 490 * can allocate highmem pages, the *get*page*() variants return ^1da177e4c3f4152 Linus Torvalds 2005-04-16 491 * virtual kernel addresses to the allocated page(s). ^1da177e4c3f4152 Linus Torvalds 2005-04-16 492 */ ^1da177e4c3f4152 Linus Torvalds 2005-04-16 493 54a6eb5c4765aa57 Mel Gorman 2008-04-28 494 static inline int gfp_zonelist(gfp_t flags) 54a6eb5c4765aa57 Mel Gorman 2008-04-28 495 { c00eb15a8914b8ba Yaowei Bai 2016-01-14 496 #ifdef CONFIG_NUMA c00eb15a8914b8ba Yaowei Bai 2016-01-14 497 if (unlikely(flags & __GFP_THISNODE)) c00eb15a8914b8ba Yaowei Bai 2016-01-14 498 return ZONELIST_NOFALLBACK; c00eb15a8914b8ba Yaowei Bai 2016-01-14 499 #endif c00eb15a8914b8ba Yaowei Bai 2016-01-14 @500 return ZONELIST_FALLBACK; 54a6eb5c4765aa57 Mel Gorman 2008-04-28 501 } 54a6eb5c4765aa57 Mel Gorman 2008-04-28 502 ^1da177e4c3f4152 Linus Torvalds 2005-04-16 503 /* ^1da177e4c3f4152 Linus Torvalds 2005-04-16 504 * We get the zone list from the current node and the gfp_mask. cb152a1a95606aad Shijie Luo 2021-05-06 505 * This zone list contains a maximum of MAX_NUMNODES*MAX_NR_ZONES zones. 54a6eb5c4765aa57 Mel Gorman 2008-04-28 506 * There are two zonelists per node, one for all zones with memory and 54a6eb5c4765aa57 Mel Gorman 2008-04-28 507 * one containing just zones from the node the zonelist belongs to. ^1da177e4c3f4152 Linus Torvalds 2005-04-16 508 * d3c251ab95b69f3d Mike Rapoport 2021-06-28 509 * For the case of non-NUMA systems the NODE_DATA() gets optimized to d3c251ab95b69f3d Mike Rapoport 2021-06-28 510 * &contig_page_data at compile-time. ^1da177e4c3f4152 Linus Torvalds 2005-04-16 511 */ 0e88460da6ab7bb6 Mel Gorman 2008-04-28 512 static inline struct zonelist *node_zonelist(int nid, gfp_t flags) 0e88460da6ab7bb6 Mel Gorman 2008-04-28 513 { 54a6eb5c4765aa57 Mel Gorman 2008-04-28 @514 return NODE_DATA(nid)->node_zonelists + gfp_zonelist(flags); 0e88460da6ab7bb6 Mel Gorman 2008-04-28 515 } ^1da177e4c3f4152 Linus Torvalds 2005-04-16 516 ^1da177e4c3f4152 Linus Torvalds 2005-04-16 517 #ifndef HAVE_ARCH_FREE_PAGE ^1da177e4c3f4152 Linus Torvalds 2005-04-16 518 static inline void arch_free_page(struct page *page, int order) { } ^1da177e4c3f4152 Linus Torvalds 2005-04-16 519 #endif cc102509074bba03 Nicholas Piggin 2006-12-06 520 #ifndef HAVE_ARCH_ALLOC_PAGE cc102509074bba03 Nicholas Piggin 2006-12-06 521 static inline void arch_alloc_page(struct page *page, int order) { } cc102509074bba03 Nicholas Piggin 2006-12-06 522 #endif ^1da177e4c3f4152 Linus Torvalds 2005-04-16 523 84172f4bb7524244 Matthew Wilcox (Oracle 2021-04-29 524) struct page *__alloc_pages(gfp_t gfp, unsigned int order, int preferred_nid, 04ec6264f28793e5 Vlastimil Babka 2017-07-06 @525 nodemask_t *nodemask); da90006b76b64857 Andrew Morton 2021-09-16 526 struct folio *__folio_alloc(gfp_t gfp, unsigned int order, int preferred_nid, da90006b76b64857 Andrew Morton 2021-09-16 527 nodemask_t *nodemask); e4048e5dc4aecec6 KOSAKI Motohiro 2008-07-23 528 387ba26fb1cb9be9 Mel Gorman 2021-04-29 529 unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid, 387ba26fb1cb9be9 Mel Gorman 2021-04-29 530 nodemask_t *nodemask, int nr_pages, 0f87d9d30f21390d Mel Gorman 2021-04-29 531 struct list_head *page_list, 0f87d9d30f21390d Mel Gorman 2021-04-29 532 struct page **page_array); 387ba26fb1cb9be9 Mel Gorman 2021-04-29 533 387ba26fb1cb9be9 Mel Gorman 2021-04-29 534 /* Bulk allocate order-0 pages */ 387ba26fb1cb9be9 Mel Gorman 2021-04-29 535 static inline unsigned long 0f87d9d30f21390d Mel Gorman 2021-04-29 536 alloc_pages_bulk_list(gfp_t gfp, unsigned long nr_pages, struct list_head *list) 387ba26fb1cb9be9 Mel Gorman 2021-04-29 537 { 0f87d9d30f21390d Mel Gorman 2021-04-29 @538 return __alloc_pages_bulk(gfp, numa_mem_id(), NULL, nr_pages, list, NULL); 0f87d9d30f21390d Mel Gorman 2021-04-29 539 } 0f87d9d30f21390d Mel Gorman 2021-04-29 540 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org [-- Attachment #2: config.gz --] [-- Type: application/gzip, Size: 25909 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
* [RFC v2 PATCH 3/3] mm: replace open-coded PG2KB/KB2PG variants with macros 2021-09-19 13:12 [RFC v2 PATCH 0/3] mm: common PAGE_SIZE shift macros Oleksandr Natalenko 2021-09-19 13:12 ` [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros Oleksandr Natalenko 2021-09-19 13:12 ` [RFC v2 PATCH 2/3] mm: replace custom PG2KB/KB2PG macros with common ones Oleksandr Natalenko @ 2021-09-19 13:12 ` Oleksandr Natalenko 2 siblings, 0 replies; 8+ messages in thread From: Oleksandr Natalenko @ 2021-09-19 13:12 UTC (permalink / raw) To: linux-kernel Cc: linux-mm, Andrew Morton, Vlastimil Babka, Matthew Wilcox, Greg Kroah-Hartman, Miaohe Lin, Michal Hocko, Mel Gorman, Stephen Rothwell, David Laight Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name> --- arch/alpha/kernel/setup.c | 3 +-- arch/mips/mm/init.c | 2 +- arch/x86/kernel/cpu/mtrr/cleanup.c | 17 +++++++++-------- block/blk-sysfs.c | 9 +++++---- drivers/gpu/drm/v3d/v3d_debugfs.c | 3 ++- drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c | 5 +++-- drivers/md/md-bitmap.c | 4 ++-- fs/ceph/addr.c | 2 +- fs/ceph/super.h | 3 ++- fs/fs-writeback.c | 2 +- fs/nfs/write.c | 4 ++-- fs/nfsd/nfscache.c | 3 ++- fs/proc/meminfo.c | 4 ++-- fs/proc/task_mmu.c | 3 ++- kernel/events/core.c | 2 +- kernel/fork.c | 2 +- mm/backing-dev.c | 2 +- mm/hugetlb.c | 2 +- mm/mmap.c | 6 +++--- mm/nommu.c | 4 ++-- mm/page-writeback.c | 4 ++-- mm/page_alloc.c | 2 +- mm/shmem.c | 3 +-- mm/swap_state.c | 5 ++--- mm/swapfile.c | 11 +++++------ mm/util.c | 6 +++--- 26 files changed, 58 insertions(+), 55 deletions(-) diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c index b4fbbba30aa2..c4282224c950 100644 --- a/arch/alpha/kernel/setup.c +++ b/arch/alpha/kernel/setup.c @@ -355,8 +355,7 @@ setup_memory(void *kernel_end) if (mem_size_limit && max_low_pfn >= mem_size_limit) { printk("setup: forcing memory size to %ldK (from %ldK).\n", - mem_size_limit << (PAGE_SHIFT - 10), - max_low_pfn << (PAGE_SHIFT - 10)); + PG2KB(mem_size_limit), PG2KB(max_low_pfn)); max_low_pfn = mem_size_limit; } diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 19347dc6bbf8..351a44437377 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -414,7 +414,7 @@ void __init paging_init(void) if (cpu_has_dc_aliases && max_low_pfn != highend_pfn) { printk(KERN_WARNING "This processor doesn't support highmem." " %ldk highmem ignored\n", - (highend_pfn - max_low_pfn) << (PAGE_SHIFT - 10)); + PG2KB(highend_pfn - max_low_pfn)); max_zone_pfns[ZONE_HIGHMEM] = max_low_pfn; } #endif diff --git a/arch/x86/kernel/cpu/mtrr/cleanup.c b/arch/x86/kernel/cpu/mtrr/cleanup.c index b5f43049fa5f..327aef0ff945 100644 --- a/arch/x86/kernel/cpu/mtrr/cleanup.c +++ b/arch/x86/kernel/cpu/mtrr/cleanup.c @@ -18,6 +18,7 @@ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/init.h> +#include <linux/mm.h> #include <linux/pci.h> #include <linux/smp.h> #include <linux/cpu.h> @@ -204,8 +205,8 @@ static void __init save_var_mtrr(unsigned int reg, unsigned long basek, unsigned long sizek, unsigned char type) { - range_state[reg].base_pfn = basek >> (PAGE_SHIFT - 10); - range_state[reg].size_pfn = sizek >> (PAGE_SHIFT - 10); + range_state[reg].base_pfn = KB2PG(basek); + range_state[reg].size_pfn = KB2PG(sizek); range_state[reg].type = type; } @@ -216,8 +217,8 @@ static void __init set_var_mtrr_all(unsigned int address_bits) unsigned int reg; for (reg = 0; reg < num_var_ranges; reg++) { - basek = range_state[reg].base_pfn << (PAGE_SHIFT - 10); - sizek = range_state[reg].size_pfn << (PAGE_SHIFT - 10); + basek = PG2KB(range_state[reg].base_pfn); + sizek = PG2KB(range_state[reg].size_pfn); type = range_state[reg].type; set_var_mtrr(reg, basek, sizek, type, address_bits); @@ -415,8 +416,8 @@ set_var_mtrr_range(struct var_mtrr_state *state, unsigned long base_pfn, if (state->reg >= num_var_ranges) return; - basek = base_pfn << (PAGE_SHIFT - 10); - sizek = size_pfn << (PAGE_SHIFT - 10); + basek = PG2KB(base_pfn); + sizek = PG2KB(size_pfn); /* See if I can merge with the last range: */ if ((basek <= 1024) || @@ -533,12 +534,12 @@ static void __init print_out_mtrr_range_state(void) for (i = 0; i < num_var_ranges; i++) { - size_base = range_state[i].size_pfn << (PAGE_SHIFT - 10); + size_base = PG2KB(range_state[i].size_pfn); if (!size_base) continue; size_base = to_size_factor(size_base, &size_factor); - start_base = range_state[i].base_pfn << (PAGE_SHIFT - 10); + start_base = PG2KB(range_state[i].base_pfn); start_base = to_size_factor(start_base, &start_factor); type = range_state[i].type; diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 614d9d47de36..25e0bcc1208f 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -4,6 +4,7 @@ */ #include <linux/kernel.h> #include <linux/slab.h> +#include <linux/mm.h> #include <linux/module.h> #include <linux/bio.h> #include <linux/blkdev.h> @@ -92,7 +93,7 @@ static ssize_t queue_ra_show(struct request_queue *q, char *page) if (!q->disk) return -EINVAL; - ra_kb = q->disk->bdi->ra_pages << (PAGE_SHIFT - 10); + ra_kb = PG2KB(q->disk->bdi->ra_pages); return queue_var_show(ra_kb, page); } @@ -107,7 +108,7 @@ queue_ra_store(struct request_queue *q, const char *page, size_t count) ret = queue_var_store(&ra_kb, page, count); if (ret < 0) return ret; - q->disk->bdi->ra_pages = ra_kb >> (PAGE_SHIFT - 10); + q->disk->bdi->ra_pages = KB2PG(ra_kb); return ret; } @@ -240,7 +241,7 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count) { unsigned long max_sectors_kb, max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1, - page_kb = 1 << (PAGE_SHIFT - 10); + page_kb = PG2KB(1); ssize_t ret = queue_var_store(&max_sectors_kb, page, count); if (ret < 0) @@ -255,7 +256,7 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count) spin_lock_irq(&q->queue_lock); q->limits.max_sectors = max_sectors_kb << 1; if (q->disk) - q->disk->bdi->io_pages = max_sectors_kb >> (PAGE_SHIFT - 10); + q->disk->bdi->io_pages = KB2PG(max_sectors_kb); spin_unlock_irq(&q->queue_lock); return ret; diff --git a/drivers/gpu/drm/v3d/v3d_debugfs.c b/drivers/gpu/drm/v3d/v3d_debugfs.c index e76b24bb8828..29461f9056b3 100644 --- a/drivers/gpu/drm/v3d/v3d_debugfs.c +++ b/drivers/gpu/drm/v3d/v3d_debugfs.c @@ -4,6 +4,7 @@ #include <linux/circ_buf.h> #include <linux/ctype.h> #include <linux/debugfs.h> +#include <linux/mm.h> #include <linux/pm_runtime.h> #include <linux/seq_file.h> @@ -203,7 +204,7 @@ static int v3d_debugfs_bo_stats(struct seq_file *m, void *unused) seq_printf(m, "allocated bos: %d\n", v3d->bo_stats.num_allocated); seq_printf(m, "allocated bo size (kb): %ld\n", - (long)v3d->bo_stats.pages_allocated << (PAGE_SHIFT - 10)); + PG2KB((long)v3d->bo_stats.pages_allocated)); mutex_unlock(&v3d->bo_lock); return 0; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c index b2c4af331c9d..1083a054d235 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c @@ -32,6 +32,7 @@ #include <drm/ttm/ttm_bo_driver.h> #include <drm/ttm/ttm_placement.h> #include <linux/idr.h> +#include <linux/mm.h> #include <linux/spinlock.h> #include <linux/kernel.h> @@ -92,14 +93,14 @@ static int vmw_gmrid_man_get_node(struct ttm_resource_manager *man, new_max_pages = gman->max_gmr_pages * 2; if (new_max_pages > gman->max_gmr_pages && new_max_pages >= gman->used_gmr_pages) { DRM_WARN("vmwgfx: increasing guest mob limits to %u kB.\n", - ((new_max_pages) << (PAGE_SHIFT - 10))); + PG2KB(new_max_pages)); gman->max_gmr_pages = new_max_pages; } else { char buf[256]; snprintf(buf, sizeof(buf), "vmwgfx, error: guest graphics is out of memory (mob limit at: %ukB).\n", - ((gman->max_gmr_pages) << (PAGE_SHIFT - 10))); + PG2KB(gman->max_gmr_pages)); vmw_host_printf(buf); DRM_WARN("%s", buf); goto nospace; diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index e29c6298ef5c..85277df1da5a 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -17,6 +17,7 @@ */ #include <linux/blkdev.h> +#include <linux/mm.h> #include <linux/module.h> #include <linux/errno.h> #include <linux/slab.h> @@ -2038,8 +2039,7 @@ void md_bitmap_status(struct seq_file *seq, struct bitmap *bitmap) "%lu%s chunk", counts->pages - counts->missing_pages, counts->pages, - (counts->pages - counts->missing_pages) - << (PAGE_SHIFT - 10), + PG2KB(counts->pages - counts->missing_pages), chunk_kb ? chunk_kb : bitmap->mddev->bitmap_info.chunksize, chunk_kb ? "KB" : "B"); if (bitmap->storage.file) { diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 99b80b5c7a93..e9d296cffb83 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -57,7 +57,7 @@ * accounting is preserved. */ -#define CONGESTION_ON_THRESH(congestion_kb) (congestion_kb >> (PAGE_SHIFT-10)) +#define CONGESTION_ON_THRESH(congestion_kb) KB2PG(congestion_kb) #define CONGESTION_OFF_THRESH(congestion_kb) \ (CONGESTION_ON_THRESH(congestion_kb) - \ (CONGESTION_ON_THRESH(congestion_kb) >> 2)) diff --git a/fs/ceph/super.h b/fs/ceph/super.h index a40eb14c282a..328d40843dbc 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -9,6 +9,7 @@ #include <linux/completion.h> #include <linux/exportfs.h> #include <linux/fs.h> +#include <linux/mm.h> #include <linux/mempool.h> #include <linux/pagemap.h> #include <linux/wait.h> @@ -908,7 +909,7 @@ static inline int default_congestion_kb(void) * This allows larger machines to have larger/more transfers. * Limit the default to 256M */ - congestion_kb = (16*int_sqrt(totalram_pages())) << (PAGE_SHIFT-10); + congestion_kb = PG2KB(16*int_sqrt(totalram_pages())); if (congestion_kb > 256*1024) congestion_kb = 256*1024; diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 81ec192ce067..1b694e6a27c0 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -34,7 +34,7 @@ /* * 4MB minimal write chunk size */ -#define MIN_WRITEBACK_PAGES (4096UL >> (PAGE_SHIFT - 10)) +#define MIN_WRITEBACK_PAGES KB2PG(4096UL) /* * Passed into wb_writeback(), essentially a subset of writeback_control diff --git a/fs/nfs/write.c b/fs/nfs/write.c index eae9bf114041..9b565808c12f 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -401,7 +401,7 @@ static int wb_priority(struct writeback_control *wbc) int nfs_congestion_kb; -#define NFS_CONGESTION_ON_THRESH (nfs_congestion_kb >> (PAGE_SHIFT-10)) +#define NFS_CONGESTION_ON_THRESH KB2PG(nfs_congestion_kb) #define NFS_CONGESTION_OFF_THRESH \ (NFS_CONGESTION_ON_THRESH - (NFS_CONGESTION_ON_THRESH >> 2)) @@ -2173,7 +2173,7 @@ int __init nfs_init_writepagecache(void) * This allows larger machines to have larger/more transfers. * Limit the default to 256M */ - nfs_congestion_kb = (16*int_sqrt(totalram_pages())) << (PAGE_SHIFT-10); + nfs_congestion_kb = PG2KB(16*int_sqrt(totalram_pages())); if (nfs_congestion_kb > 256*1024) nfs_congestion_kb = 256*1024; diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c index 96cdf77925f3..aeb464f88fa7 100644 --- a/fs/nfsd/nfscache.c +++ b/fs/nfsd/nfscache.c @@ -9,6 +9,7 @@ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> */ +#include <linux/mm.h> #include <linux/sunrpc/svc_xprt.h> #include <linux/slab.h> #include <linux/vmalloc.h> @@ -70,7 +71,7 @@ nfsd_cache_size_limit(void) unsigned int limit; unsigned long low_pages = totalram_pages() - totalhigh_pages(); - limit = (16 * int_sqrt(low_pages)) << (PAGE_SHIFT-10); + limit = PG2KB(16 * int_sqrt(low_pages)); return min_t(unsigned int, limit, 256*1024); } diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c index 6fa761c9cc78..5443be3060a8 100644 --- a/fs/proc/meminfo.c +++ b/fs/proc/meminfo.c @@ -25,7 +25,7 @@ void __attribute__((weak)) arch_report_meminfo(struct seq_file *m) static void show_val_kb(struct seq_file *m, const char *s, unsigned long num) { - seq_put_decimal_ull_width(m, s, num << (PAGE_SHIFT - 10), 8); + seq_put_decimal_ull_width(m, s, PG2KB(num), 8); seq_write(m, " kB\n", 4); } @@ -124,7 +124,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v) #ifdef CONFIG_MEMORY_FAILURE seq_printf(m, "HardwareCorrupted: %5lu kB\n", - atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)); + PG2KB(atomic_long_read(&num_poisoned_pages))); #endif #ifdef CONFIG_TRANSPARENT_HUGEPAGE diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index cf25be3e0321..11798f84292c 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -3,6 +3,7 @@ #include <linux/vmacache.h> #include <linux/hugetlb.h> #include <linux/huge_mm.h> +#include <linux/mm.h> #include <linux/mount.h> #include <linux/seq_file.h> #include <linux/highmem.h> @@ -26,7 +27,7 @@ #include "internal.h" #define SEQ_PUT_DEC(str, val) \ - seq_put_decimal_ull_width(m, str, (val) << (PAGE_SHIFT-10), 8) + seq_put_decimal_ull_width(m, str, PG2KB(val), 8) void task_mem(struct seq_file *m, struct mm_struct *mm) { unsigned long text, lib, swap, anon, file, shmem; diff --git a/kernel/events/core.c b/kernel/events/core.c index 349f80aa9e7d..ee290e405d00 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -6267,7 +6267,7 @@ static int perf_mmap(struct file *file, struct vm_area_struct *vma) user_extra = nr_pages + 1; accounting: - user_lock_limit = sysctl_perf_event_mlock >> (PAGE_SHIFT - 10); + user_lock_limit = KB2PG(sysctl_perf_event_mlock); /* * Increase the limit linearly with more CPUs: diff --git a/kernel/fork.c b/kernel/fork.c index 723125f2cbed..04302967685f 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2325,7 +2325,7 @@ static __latent_entropy struct task_struct *copy_process( } p->nr_dirtied = 0; - p->nr_dirtied_pause = 128 >> (PAGE_SHIFT - 10); + p->nr_dirtied_pause = KB2PG(128); p->dirty_paused_when = 0; p->pdeath_signal = 0; diff --git a/mm/backing-dev.c b/mm/backing-dev.c index b1d9c7bb35b3..c0820114e1dd 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -140,7 +140,7 @@ static ssize_t read_ahead_kb_store(struct device *dev, if (ret < 0) return ret; - bdi->ra_pages = read_ahead_kb >> (PAGE_SHIFT - 10); + bdi->ra_pages = KB2PG(read_ahead_kb); return count; } diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 6378c1066459..f496cef8abef 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -4050,7 +4050,7 @@ void hugetlb_show_meminfo(void) void hugetlb_report_usage(struct seq_file *m, struct mm_struct *mm) { seq_printf(m, "HugetlbPages:\t%8lu kB\n", - atomic_long_read(&mm->hugetlb_usage) << (PAGE_SHIFT - 10)); + PG2KB(atomic_long_read(&mm->hugetlb_usage))); } /* Return the number pages of memory we physically have, in PAGE_SIZE units. */ diff --git a/mm/mmap.c b/mm/mmap.c index b22a07f5e761..95c4883d2a87 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -3703,7 +3703,7 @@ static int init_user_reserve(void) { unsigned long free_kbytes; - free_kbytes = global_zone_page_state(NR_FREE_PAGES) << (PAGE_SHIFT - 10); + free_kbytes = PG2KB(global_zone_page_state(NR_FREE_PAGES)); sysctl_user_reserve_kbytes = min(free_kbytes / 32, 1UL << 17); return 0; @@ -3724,7 +3724,7 @@ static int init_admin_reserve(void) { unsigned long free_kbytes; - free_kbytes = global_zone_page_state(NR_FREE_PAGES) << (PAGE_SHIFT - 10); + free_kbytes = PG2KB(global_zone_page_state(NR_FREE_PAGES)); sysctl_admin_reserve_kbytes = min(free_kbytes / 32, 1UL << 13); return 0; @@ -3768,7 +3768,7 @@ static int reserve_mem_notifier(struct notifier_block *nb, break; case MEM_OFFLINE: - free_kbytes = global_zone_page_state(NR_FREE_PAGES) << (PAGE_SHIFT - 10); + free_kbytes = PG2KB(global_zone_page_state(NR_FREE_PAGES)); if (sysctl_user_reserve_kbytes > free_kbytes) { init_user_reserve(); diff --git a/mm/nommu.c b/mm/nommu.c index 8943dc0e2132..783526838176 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1803,7 +1803,7 @@ static int __meminit init_user_reserve(void) { unsigned long free_kbytes; - free_kbytes = global_zone_page_state(NR_FREE_PAGES) << (PAGE_SHIFT - 10); + free_kbytes = PG2KB(global_zone_page_state(NR_FREE_PAGES)); sysctl_user_reserve_kbytes = min(free_kbytes / 32, 1UL << 17); return 0; @@ -1824,7 +1824,7 @@ static int __meminit init_admin_reserve(void) { unsigned long free_kbytes; - free_kbytes = global_zone_page_state(NR_FREE_PAGES) << (PAGE_SHIFT - 10); + free_kbytes = PG2KB(global_zone_page_state(NR_FREE_PAGES)); sysctl_admin_reserve_kbytes = min(free_kbytes / 32, 1UL << 13); return 0; diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 9c64490171e0..1e3ab56ded46 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -50,7 +50,7 @@ * Try to keep balance_dirty_pages() call intervals higher than this many pages * by raising pause time to max_pause when falls below it. */ -#define DIRTY_POLL_THRESH (128 >> (PAGE_SHIFT - 10)) +#define DIRTY_POLL_THRESH KB2PG(128) /* * Estimate write bandwidth at 200ms intervals. @@ -1893,7 +1893,7 @@ void balance_dirty_pages_ratelimited(struct address_space *mapping) ratelimit = current->nr_dirtied_pause; if (wb->dirty_exceeded) - ratelimit = min(ratelimit, 32 >> (PAGE_SHIFT - 10)); + ratelimit = min(ratelimit, KB2PG(32)); preempt_disable(); /* diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5fad2f6d7d5f..8617559ca211 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8350,7 +8350,7 @@ static void setup_per_zone_lowmem_reserve(void) static void __setup_per_zone_wmarks(void) { - unsigned long pages_min = min_free_kbytes >> (PAGE_SHIFT - 10); + unsigned long pages_min = KB2PG(min_free_kbytes); unsigned long lowmem_pages = 0; struct zone *zone; unsigned long flags; diff --git a/mm/shmem.c b/mm/shmem.c index 6f975d4e08f4..95a9e0e81779 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -3565,8 +3565,7 @@ static int shmem_show_options(struct seq_file *seq, struct dentry *root) struct shmem_sb_info *sbinfo = SHMEM_SB(root->d_sb); if (sbinfo->max_blocks != shmem_default_max_blocks()) - seq_printf(seq, ",size=%luk", - sbinfo->max_blocks << (PAGE_SHIFT - 10)); + seq_printf(seq, ",size=%luk", PG2KB(sbinfo->max_blocks)); if (sbinfo->max_inodes != shmem_default_max_inodes()) seq_printf(seq, ",nr_inodes=%lu", sbinfo->max_inodes); if (sbinfo->mode != (0777 | S_ISVTX)) diff --git a/mm/swap_state.c b/mm/swap_state.c index 8d4104242100..0a11ca2aba50 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -76,9 +76,8 @@ void show_swap_cache_info(void) printk("Swap cache stats: add %lu, delete %lu, find %lu/%lu\n", swap_cache_info.add_total, swap_cache_info.del_total, swap_cache_info.find_success, swap_cache_info.find_total); - printk("Free swap = %ldkB\n", - get_nr_swap_pages() << (PAGE_SHIFT - 10)); - printk("Total swap = %lukB\n", total_swap_pages << (PAGE_SHIFT - 10)); + printk("Free swap = %ldkB\n", PG2KB(get_nr_swap_pages())); + printk("Total swap = %lukB\n", PG2KB(total_swap_pages)); } void *get_shadow_from_swap_cache(swp_entry_t entry) diff --git a/mm/swapfile.c b/mm/swapfile.c index e3dcaeecc50f..1a8f95edd3c3 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -2770,8 +2770,8 @@ static int swap_show(struct seq_file *swap, void *v) return 0; } - bytes = si->pages << (PAGE_SHIFT - 10); - inuse = si->inuse_pages << (PAGE_SHIFT - 10); + bytes = PG2KB(si->pages); + inuse = PG2KB(si->inuse_pages); file = si->swap_file; len = seq_file_path(swap, file, " \t\n\\"); @@ -2996,8 +2996,7 @@ static unsigned long read_swap_header(struct swap_info_struct *p, } if (last_page > maxpages) { pr_warn("Truncating oversized swap area, only using %luk out of %luk\n", - maxpages << (PAGE_SHIFT - 10), - last_page << (PAGE_SHIFT - 10)); + PG2KB(maxpages), PG2KB(last_page)); } if (maxpages > last_page) { maxpages = last_page + 1; @@ -3338,8 +3337,8 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) enable_swap_info(p, prio, swap_map, cluster_info, frontswap_map); pr_info("Adding %uk swap on %s. Priority:%d extents:%d across:%lluk %s%s%s%s%s\n", - p->pages<<(PAGE_SHIFT-10), name->name, p->prio, - nr_extents, (unsigned long long)span<<(PAGE_SHIFT-10), + PG2KB(p->pages), name->name, p->prio, + nr_extents, PG2KB((unsigned long long)span), (p->flags & SWP_SOLIDSTATE) ? "SS" : "", (p->flags & SWP_DISCARDABLE) ? "D" : "", (p->flags & SWP_AREA_DISCARD) ? "s" : "", diff --git a/mm/util.c b/mm/util.c index 4ac87f1b30f1..6d301ddfc395 100644 --- a/mm/util.c +++ b/mm/util.c @@ -848,7 +848,7 @@ unsigned long vm_commit_limit(void) unsigned long allowed; if (sysctl_overcommit_kbytes) - allowed = sysctl_overcommit_kbytes >> (PAGE_SHIFT - 10); + allowed = KB2PG(sysctl_overcommit_kbytes); else allowed = ((totalram_pages() - hugetlb_total_pages()) * sysctl_overcommit_ratio / 100); @@ -921,13 +921,13 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin) * Reserve some for root */ if (!cap_sys_admin) - allowed -= sysctl_admin_reserve_kbytes >> (PAGE_SHIFT - 10); + allowed -= KB2PG(sysctl_admin_reserve_kbytes); /* * Don't let a single process grow so big a user can't recover */ if (mm) { - long reserve = sysctl_user_reserve_kbytes >> (PAGE_SHIFT - 10); + long reserve = KB2PG(sysctl_user_reserve_kbytes); allowed -= min_t(long, mm->total_vm / 32, reserve); } -- 2.33.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
end of thread, other threads:[~2021-09-19 17:13 UTC | newest] Thread overview: 8+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2021-09-19 13:12 [RFC v2 PATCH 0/3] mm: common PAGE_SIZE shift macros Oleksandr Natalenko 2021-09-19 13:12 ` [RFC v2 PATCH 1/3] mm: add PG2KB/KB2PG helper macros Oleksandr Natalenko 2021-09-19 13:21 ` Greg Kroah-Hartman 2021-09-19 14:21 ` Matthew Wilcox 2021-09-19 13:12 ` [RFC v2 PATCH 2/3] mm: replace custom PG2KB/KB2PG macros with common ones Oleksandr Natalenko 2021-09-19 15:35 ` kernel test robot 2021-09-19 17:13 ` kernel test robot 2021-09-19 13:12 ` [RFC v2 PATCH 3/3] mm: replace open-coded PG2KB/KB2PG variants with macros Oleksandr Natalenko
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