mmotm 2011-04-29-16-25 uploaded

mmotm 2011-04-29-16-25 uploaded

[akpm]

The mm-of-the-moment snapshot 2011-04-29-16-25 has been uploaded to

   http://userweb.kernel.org/~akpm/mmotm/

and will soon be available at

   git://zen-kernel.org/kernel/mmotm.git

It contains the following patches against 2.6.39-rc5:

origin.patch
rtc-s3c-rtc-fixup-wake-support-for-rtc.patch
backlight-new-driver-for-the-adp8870-backlight-devices.patch
linux-next.patch
next-remove-localversion.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
include-asm-generic-vmlinuxldsh-fix-__modver-section-warnings.patch
drivers-i2c-busses-i2c-designware-corec-needs-delayh.patch
tmpfs-fix-race-between-umount-and-writepage.patch
fs-namespacec-bound-mount-propagation-fix.patch
drivers-scsi-pmcraid-reject-negative-request-size.patch
acpi-remove-acpi_sleep=s4_nonvs.patch
acerhdf-add-support-for-aspire-1410-bios-v13314.patch
arch-x86-include-asm-delayh-fix-udelay-and-ndelay-for-8-bit-args.patch
x86-fix-mmap-random-address-range.patch
leds-new-pcengines-alix-system-driver-enables-leds-via-gpio-interface.patch
gpio-show-explicit-dependency-between-gpio_cs5535-and-mfd_cs5535.patch
msm-timer-migrate-to-timer-based-__delay.patch
arch-arm-mach-ux500-mbox-db5500c-world-writable-sysfs-fifo-file.patch
audit-always-follow-va_copy-with-va_end.patch
btrfs-dont-dereference-extent_mapping-if-null.patch
drivers-gpu-drm-radeon-atomc-fix-warning.patch
fb-fix-potential-deadlock-between-lock_fb_info-and-console_lock.patch
cyber2000fb-avoid-palette-corruption-at-higher-clocks.patch
fscache-remove-dead-code-under-config_workqueue_debugfs.patch
bitmap-irq-add-smp_affinity_list-interface-to-proc-irq.patch
posix-timers-rcu-conversion.patch
leds-support-automatic-start-of-blinking-with-ledtrig-timer.patch
drivers-leds-leds-pca9532c-add-gpio-capability.patch
leds-route-kbd-leds-through-the-generic-leds-layer.patch
net-irda-convert-bfin_sir-to-common-blackfin-uart-header.patch
net-convert-%p-usage-to-%pk.patch
backlight-add-backlight-type-fix.patch
backlight-add-backlight-type-fix-fix.patch
drivers-video-backlight-adp5520_blc-check-strict_strtoul-return-value.patch
drivers-video-backlight-adp5520_blc-check-strict_strtoul-return-value-fix.patch
i915-add-native-backlight-control.patch
btusb-patch-add_apple_macbookpro62.patch
drivers-message-fusion-mptsasc-fix-warning.patch
scsi-fix-a-header-to-include-linux-typesh.patch
aic94xx-world-writable-sysfs-update_bios-file.patch
osst-wrong-index-used-in-inner-loop.patch
osst-wrong-index-used-in-inner-loop-checkpatch-fixes.patch
drivers-scsi-osstc-fix-warning.patch
drivers-scsi-megaraidc-fix-sparse-warnings.patch
drbd-fix-warning.patch
usb-yurex-recognize-generalkeys-wireless-presenter-as-generic-hid.patch
drivers-usb-misc-usbtestc-fix-warning.patch
mm.patch
arch-mm-filter-disallowed-nodes-from-arch-specific-show_mem-functions.patch
mmap-add-alignment-for-some-variables.patch
mmap-avoid-unnecessary-anon_vma-lock.patch
mmap-avoid-merging-cloned-vmas.patch
mm-remove-unused-zone_idx-variable-from-set_migratetype_isolate.patch
mm-nommu-sort-mm-mmap-list-properly.patch
mm-nommu-sort-mm-mmap-list-properly-fix.patch
mm-nommu-dont-scan-the-vma-list-when-deleting.patch
mm-nommu-find-vma-using-the-sorted-vma-list.patch
mm-nommu-check-the-vma-list-when-unmapping-file-mapped-vma.patch
mm-nommu-fix-a-potential-memory-leak-in-do_mmap_private.patch
mm-nommu-fix-a-compile-warning-in-do_mmap_pgoff.patch
mm-per-node-vmstat-show-proper-vmstats.patch
mm-per-node-vmstat-show-proper-vmstats-fix.patch
mm-increase-reclaim_distance-to-30.patch
mm-introduce-wait_on_page_locked_killable.patch
x86mm-make-pagefault-killable.patch
mm-mem-hotplug-fix-section-mismatch-setup_per_zone_inactive_ratio-should-be-__meminit.patch
mm-mem-hotplug-recalculate-lowmem_reserve-when-memory-hotplug-occur.patch
mm-mem-hotplug-update-pcp-stat_threshold-when-memory-hotplug-occur.patch
mm-mem-hotplug-update-pcp-stat_threshold-when-memory-hotplug-occur-fix.patch
mm-convert-vma-vm_flags-to-64-bit.patch
mm-add-__nocast-attribute-to-vm_flags.patch
fremap-convert-vm_flags-to-unsigned-long-long.patch
procfs-convert-vm_flags-to-unsigned-long-long.patch
mm-compaction-reverse-the-change-that-forbade-sync-migraton-with-__gfp_no_kswapd.patch
oom-replace-pf_oom_origin-with-toggling-oom_score_adj.patch
oom-replace-pf_oom_origin-with-toggling-oom_score_adj-update.patch
include-linux-gfph-work-around-apparent-sparse-confusion.patch
include-linux-gfph-convert-bug_on-into-vm_bug_on.patch
mm-rename-alloc_pages_exact.patch
mm-make-new-alloc_pages_exact.patch
mm-reuse-__free_pages_exact-in-__alloc_pages_exact.patch
mm-vmalloc-remove-guard-page-from-between-vmap-blocks.patch
mm-make-expand_downwards-symmetrical-with-expand_upwards.patch
mm-make-expand_downwards-symmetrical-with-expand_upwards-v3.patch
mm-mmu_gather-rework.patch
mm-mmu_gather-rework-fix.patch
powerpc-mmu_gather-rework.patch
sparc-mmu_gather-rework.patch
s390-mmu_gather-rework.patch
arm-mmu_gather-rework.patch
sh-mmu_gather-rework.patch
ia64-mmu_gather-rework.patch
um-mmu_gather-rework.patch
mm-now-that-all-old-mmu_gather-code-is-gone-remove-the-storage.patch
mm-powerpc-move-the-rcu-page-table-freeing-into-generic-code.patch
mm-extended-batches-for-generic-mmu_gather.patch
lockdep-mutex-provide-mutex_lock_nest_lock.patch
mm-remove-i_mmap_lock-lockbreak.patch
mm-convert-i_mmap_lock-to-a-mutex.patch
mm-revert-page_lock_anon_vma-lock-annotation.patch
mm-improve-page_lock_anon_vma-comment.patch
mm-use-refcounts-for-page_lock_anon_vma.patch
mm-convert-anon_vma-lock-to-a-mutex.patch
mm-optimize-page_lock_anon_vma-fast-path.patch
mm-uninline-large-generic-tlbh-functions.patch
mm-thp-optimize-memcg-charge-in-khugepaged.patch
mm-thp-optimize-memcg-charge-in-khugepaged-fix.patch
mn10300-replace-mm-cpu_vm_mask-with-mm_cpumask.patch
tile-replace-mm-cpu_vm_mask-with-mm_cpumask.patch
mm-convert-mm-cpu_vm_cpumask-into-cpumask_var_t.patch
mm-convert-mm-cpu_vm_cpumask-into-cpumask_var_t-fix.patch
mm-convert-mm-cpu_vm_cpumask-into-cpumask_var_t-checkpatch-fixes.patch
mm-break-out-page-allocation-warning-code.patch
mm-print-vmalloc-state-after-allocation-failures.patch
writeback-pass-writeback_control-down-to-move_expired_inodes.patch
writeback-introduce-writeback_controlinodes_cleaned.patch
writeback-try-more-writeback-as-long-as-something-was-written.patch
writeback-the-kupdate-expire-timestamp-should-be-a-moving-target.patch
writeback-sync-expired-inodes-first-in-background-writeback.patch
writeback-sync-expired-inodes-first-in-background-writeback-fix.patch
writeback-refill-b_io-iff-empty.patch
mem-hotplug-call-isolate_lru_page-with-elevated-refcount.patch
mem-hwpoison-fix-page-refcount-around-isolate_lru_page.patch
mm-strictly-require-elevated-page-refcount-in-isolate_lru_page.patch
alpha-mm-set-all-online-nodes-in-n_normal_memory.patch
m32r-mm-set-all-online-nodes-in-n_normal_memory.patch
mm-check-if-any-page-in-a-pageblock-is-reserved-before-marking-it-migrate_reserve.patch
mm-check-if-any-page-in-a-pageblock-is-reserved-before-marking-it-migrate_reserve-fix.patch
readahead-readahead-page-allocations-are-ok-to-fail.patch
vmscan-change-shrink_slab-interfaces-by-passing-shrink_control.patch
vmscan-change-shrink_slab-interfaces-by-passing-shrink_control-fix.patch
vmscan-change-shrink_slab-interfaces-by-passing-shrink_control-fix-2.patch
vmscan-change-shrinker-api-by-passing-shrink_control-struct.patch
vmscan-change-shrinker-api-by-passing-shrink_control-struct-fix.patch
vmscan-change-shrinker-api-by-passing-shrink_control-struct-fix-2.patch
readahead-return-early-when-readahead-is-disabled.patch
readahead-reduce-unnecessary-mmap_miss-increases.patch
readahead-trigger-mmap-sequential-readahead-on-pg_readahead.patch
writeback-split-inode_wb_list_lock-into-bdi_writebacklist_lock.patch
writeback-elevate-queue_io-into-wb_writeback.patch
mm-remove-unused-token-argument-from-apply_to_page_range-callback.patch
mm-add-apply_to_page_range_batch.patch
ioremap-use-apply_to_page_range_batch-for-ioremap_page_range.patch
vmalloc-use-plain-pte_clear-for-unmaps.patch
vmalloc-use-apply_to_page_range_batch-for-vunmap_page_range.patch
vmalloc-use-apply_to_page_range_batch-for-vmap_page_range_noflush.patch
vmalloc-use-apply_to_page_range_batch-in-alloc_vm_area.patch
xen-mmu-use-apply_to_page_range_batch-in-xen_remap_domain_mfn_range.patch
xen-grant-table-use-apply_to_page_range_batch.patch
memsw-remove-noswapaccount-kernel-parameter.patch
mm-batch-activate_page-to-reduce-lock-contention.patch
xattrh-expose-string-defines-to-userspace.patch
frv-duplicate-output_buffer-of-e03.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
hpet-factor-timer-allocate-from-open.patch
alpha-replace-with-new-cpumask-apis.patch
arch-alpha-include-asm-ioh-s-extern-inline-static-inline.patch
m32r-convert-cpumask-api.patch
m32r-fix-spin_lock_irqsave-misuse.patch
m32r-remove-redundant-declaration.patch
ulimit-raise-default-hard-ulimit-on-number-of-files-to-4096.patch
init-calibratec-fix-for-critical-bogomips-intermittent-calculation-failure.patch
init-calibratec-fix-for-critical-bogomips-intermittent-calculation-failure-checkpatch-fixes.patch
init-calibratec-fix-for-critical-bogomips-intermittent-calculation-failure-fix.patch
sparse-define-dummy-build_bug_on-definition-for-sparse.patch
sparse-define-__must_be_array-for-__checker__.patch
sparse-undef-__compiletime_warningerror-if-__checker__-is-defined.patch
lib-vsprintfc-fix-interaction-of-kasprintf-and-vsnprintf-when-using-%pv.patch
memblock-add-error-return-when-config_have_memblock-is-not-set.patch
printk-allocate-kernel-log-buffer-earlier-v2.patch
printk-allocate-kernel-log-buffer-earlier-v2-checkpatch-fixes.patch
printk-allocate-kernel-log-buffer-earlier-v2-fix.patch
fcntlf_setfl-allow-setting-of-o_sync.patch
maintainers-roman-zippel-has-been-mia-for-several-years.patch
lru_cache-use-correct-type-in-sizeof-for-allocation.patch
lru_cache-use-correct-type-in-sizeof-for-allocation-fix.patch
lib-add-kstrto_from_user.patch
lib-consolidate-debug_per_cpu_maps.patch
include-linux-genalloch-add-multiple-inclusion-guards.patch
lib-genallocc-add-support-for-specifying-the-physical-address.patch
lib-genallocc-add-support-for-specifying-the-physical-address-v2.patch
percpu_counter-change-return-value-and-add-comments.patch
percpu_counter-change-return-value-and-add-comments-fix.patch
checkpatch-add-check-for-line-continuations-in-quoted-strings.patch
checkpatch-add-foo_level-and-module_bar-to-80-column-exceptions.patch
checkpatch-fix-defect-in-printkkern_level-80-column-exceptions.patch
lib-hexdumpc-make-hex2bin-return-the-updated-src-address.patch
fs-binfmt_miscc-use-kernels-hex_to_bin-method.patch
fs-binfmt_miscc-use-kernels-hex_to_bin-method-fix.patch
fs-binfmt_miscc-use-kernels-hex_to_bin-method-fix-fix.patch
fs-ncpfs-inodec-suppress-used-uninitialised-warning.patch
rtc-add-support-for-the-rtc-in-via-vt8500-and-compatibles.patch
rtc-add-em3027-rtc-driver.patch
rtc-add-rv3029c2-rtc-support.patch
rtc-add-basic-support-for-st-m41t93-spi-rtc.patch
drivers-rtc-rtc-mrstc-use-release_mem_region-after-request_mem_region.patch
drivers-rtc-rtc-mrstc-use-release_mem_region-after-request_mem_region-fix.patch
rtc-add-support-for-spear-rtc.patch
rtc-driver-for-pt7c4338-chip.patch
rtc-driver-for-pt7c4338-chip-checkpatch-fixes.patch
rtc-driver-for-pt7c4338-chip-fix.patch
rtc-rtc-driver-for-da9052-pmic.patch
gpio-add-new-altera-pio-driver.patch
gpio-add-new-altera-pio-driver-update.patch
gpio-make-gpio_requestfree_array-gpio-array-parameter-const.patch
jbd-remove-dependency-on-__gfp_nofail.patch
ufs-truncated-values-handling-64-bit-metadata.patch
documentation-atomic_opstxt-avoid-volatile-in-sample-code.patch
documentation-accounting-getdelaysc-fix-unused-var-warning.patch
documentation-accounting-getdelaysc-handle-sendto-failures.patch
cgroups-read-write-lock-clone_thread-forking-per-threadgroup.patch
cgroups-add-per-thread-subsystem-callbacks.patch
cgroups-make-procs-file-writable.patch
cgroups-use-flex_array-in-attach_proc.patch
cgroup-remove-the-ns_cgroup.patch
mm-move-enum-vm_event_item-into-a-standalone-header-file.patch
memcg-count-the-soft_limit-reclaim-in-global-background-reclaim.patch
memcg-add-stats-to-monitor-soft_limit-reclaim.patch
add-the-pagefault-count-into-memcg-stats.patch
add-the-pagefault-count-into-memcg-stats-fix.patch
memcg-remove-pointless-next_mz-nullification-in-mem_cgroup_soft_limit_reclaim.patch
memcg-mark-init_section_page_cgroup-properly.patch
memcg-fix-off-by-one-when-calculating-swap-cgroup-map-length.patch
memcg-move-page-freeing-code-out-of-lock.patch
maintainers-add-mm-page_cgroupc-into-memcg-subsystem.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node-cpusets-initialize-spread-rotor-lazily.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node-cpusets-initialize-spread-rotor-lazily-fix.patch
asm-generic-ptraceh-start-a-common-low-level-ptrace-helper.patch
blackfin-convert-to-asm-generic-ptraceh.patch
x86-convert-to-asm-generic-ptraceh.patch
sh-convert-to-asm-generic-ptraceh.patch
kgdbts-unify-generalize-gdb-breakpoint-adjustment.patch
signal-introduce-retarget_shared_pending.patch
signal-retarget_shared_pending-consider-shared-unblocked-signals-only.patch
signal-retarget_shared_pending-optimize-while_each_thread-loop.patch
signal-sigprocmask-narrow-the-scope-of-siglock.patch
signal-sigprocmask-should-do-retarget_shared_pending.patch
x86-signal-handle_signal-should-use-set_current_blocked.patch
x86-signal-sys_rt_sigreturn-should-use-set_current_blocked.patch
signal-cleanup-sys_rt_sigprocmask.patch
mm-extract-exe_file-handling-from-procfs.patch
coredump-add-support-for-exe_file-in-core-name.patch
kstrtox-convert-fs-proc.patch
proc-constify-status-array.patch
proc-stat-use-defined-macro-kmalloc_max_size.patch
proc-put-check_mem_permission-after-__get_free_page-in-mem_write.patch
proc-fix-pagemap_read-error-case.patch
cpumask-convert-for_each_cpumask-with-for_each_cpu.patch
cpumask-convert-cpumask_of_cpu-to-cpumask_of.patch
drivers-char-mspecc-use-kvzalloc-to-allocate-memory.patch
fs-partitions-efic-corrupted-guid-partition-tables-can-cause-kernel-oops.patch
fs-partitions-efic-corrupted-guid-partition-tables-can-cause-kernel-oops-fix.patch
sysctl-add-proc_dointvec_bool-handler.patch
sysctl-use-proc_dointvec_bool-where-appropriate.patch
sysctl-add-proc_dointvec_unsigned-handler.patch
sysctl-use-proc_dointvec_unsigned-where-appropriate.patch
pid-fix-typo-in-function-description.patch
fs-execc-provide-the-correct-process-pid-to-the-pipe-helper.patch
drivers-char-ppdevc-put-gotten-port-value.patch
kernel-profilec-use-vzalloc-instead-of-vmallocmemset.patch
scatterlist-new-helper-functions.patch
scatterlist-new-helper-functions-update.patch
scatterlist-new-helper-functions-update-fix.patch
memstick-add-support-for-legacy-memorysticks.patch
memstick-add-support-for-legacy-memorysticks-update-2.patch
w1-add-1-wire-w1-reset-and-resume-command-api-support.patch
w1-add-1-wire-w1-ds2408-8-channel-addressable-switch-support.patch
w1-complete-the-1-wire-w1-ds1wm-driver-search-algorithm.patch
w1-have-netlink-search-update-kernel-list.patch
kexec-remove-kmsg_dump_kexec.patch
kexec-remove-kmsg_dump_kexec-fix.patch
m68knommu-fix-build-error-due-to-the-lack-of-find_next_bit_le.patch
arch-add-define-for-each-of-optimized-find-bitops.patch
bitops-add-ifndef-for-each-of-find-bitops.patch
arch-remove-config_generic_find_next_bitbit_lelast_bit.patch
arm-use-asm-generic-bitops-leh.patch
s390-use-asm-generic-bitops-leh.patch
m68knommu-use-generic-find_next_bit_le.patch
make-sure-nobodys-leaking-resources.patch
journal_add_journal_head-debug.patch
releasing-resources-with-children.patch
make-frame_pointer-default=y.patch
mutex-subsystem-synchro-test-module.patch
mutex-subsystem-synchro-test-module-fix.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
add-debugging-aid-for-memory-initialisation-problems.patch
workaround-for-a-pci-restoring-bug.patch
prio_tree-debugging-patch.patch
single_open-seq_release-leak-diagnostics.patch
add-a-refcount-check-in-dput.patch
memblock-add-input-size-checking-to-memblock_find_region.patch
memblock-add-input-size-checking-to-memblock_find_region-fix.patch

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Re: mmotm 2011-04-29-16-25 uploaded

[Randy Dunlap]

On Fri, 29 Apr 2011 16:26:16 -0700 akpm@linux-foundation.org wrote:

> The mm-of-the-moment snapshot 2011-04-29-16-25 has been uploaded to
> 
>    http://userweb.kernel.org/~akpm/mmotm/
> 
> and will soon be available at
> 
>    git://zen-kernel.org/kernel/mmotm.git
> 
> It contains the following patches against 2.6.39-rc5:


mm-per-node-vmstat-show-proper-vmstats.patch

when CONFIG_PROC_FS is not enabled:

drivers/built-in.o: In function `node_read_vmstat':
node.c:(.text+0x1e995): undefined reference to `vmstat_text'

from drivers/base/node.c

---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

[PATCH] mmotm: fix hang at startup

[Hugh Dickins]

Yesterday's mmotm hangs at startup, and with lockdep it reports:
BUG: spinlock recursion on CPU#1, blkid/284 - with bdi_lock_two()
called from bdev_inode_switch_bdi() in the backtrace.  It appears
that this function is sometimes called with new the same as old.

Signed-off-by: Hugh Dickins <hughd@google.com>
---
Fix to
writeback-split-inode_wb_list_lock-into-bdi_writebacklist_lock.patch

 fs/block_dev.c |    2 ++
 1 file changed, 2 insertions(+)

--- 2.6.39-rc5-mm1/fs/block_dev.c	2011-04-29 18:20:09.183314733 -0700
+++ linux/fs/block_dev.c	2011-04-30 17:55:45.718785263 -0700
@@ -57,6 +57,8 @@ static void bdev_inode_switch_bdi(struct
 {
 	struct backing_dev_info *old = inode->i_data.backing_dev_info;
 
+	if (dst == old)
+		return;
 	bdi_lock_two(&old->wb, &dst->wb);
 	spin_lock(&inode->i_lock);
 	inode->i_data.backing_dev_info = dst;

Re: [PATCH] mmotm: fix hang at startup

[Wu Fengguang]

On Sun, May 01, 2011 at 10:35:38AM +0800, Hugh Dickins wrote:
> Yesterday's mmotm hangs at startup, and with lockdep it reports:
> BUG: spinlock recursion on CPU#1, blkid/284 - with bdi_lock_two()
> called from bdev_inode_switch_bdi() in the backtrace.  It appears
> that this function is sometimes called with new the same as old.
>
> Signed-off-by: Hugh Dickins <hughd@google.com>

Thanks!

Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>

> Fix to
> writeback-split-inode_wb_list_lock-into-bdi_writebacklist_lock.patch
> 
>  fs/block_dev.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> --- 2.6.39-rc5-mm1/fs/block_dev.c	2011-04-29 18:20:09.183314733 -0700
> +++ linux/fs/block_dev.c	2011-04-30 17:55:45.718785263 -0700
> @@ -57,6 +57,8 @@ static void bdev_inode_switch_bdi(struct
>  {
>  	struct backing_dev_info *old = inode->i_data.backing_dev_info;
>  
> +	if (dst == old)
> +		return;

nitpick: it could help to add a comment

        /* avoid spinlock recursion */

to indicate that's not merely an optional optimization, but indeed
required for correctness.

Thanks,
Fengguang

>  	bdi_lock_two(&old->wb, &dst->wb);
>  	spin_lock(&inode->i_lock);
>  	inode->i_data.backing_dev_info = dst;

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Re: mmotm 2011-04-29-16-25 uploaded

[KOSAKI Motohiro]

> On Fri, 29 Apr 2011 16:26:16 -0700 akpm@linux-foundation.org wrote:
> 
> > The mm-of-the-moment snapshot 2011-04-29-16-25 has been uploaded to
> > 
> >    http://userweb.kernel.org/~akpm/mmotm/
> > 
> > and will soon be available at
> > 
> >    git://zen-kernel.org/kernel/mmotm.git
> > 
> > It contains the following patches against 2.6.39-rc5:
> 
> 
> mm-per-node-vmstat-show-proper-vmstats.patch
> 
> when CONFIG_PROC_FS is not enabled:
> 
> drivers/built-in.o: In function `node_read_vmstat':
> node.c:(.text+0x1e995): undefined reference to `vmstat_text'
> 
> from drivers/base/node.c


Thank you for finding that!



>From 63ad7c06f082f8423c033b9f54070e14d561db7e Mon Sep 17 00:00:00 2001
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Date: Sun, 1 May 2011 16:00:09 +0900
Subject: [PATCH] vmstat: fix build error when SYSFS=y and PROC_FS=n

Randy Dunlap pointed out node.c makes build error when
PROC_FS=n. Because node.c#node_read_vmstat() uses vmstat_text
and it depend on PROC_FS.

Thus, this patch change it to depend both SYSFS and PROC_FS.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
---
 mm/vmstat.c |  261 ++++++++++++++++++++++++++++++-----------------------------
 1 files changed, 132 insertions(+), 129 deletions(-)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index a2b7344..20c18b7 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -659,6 +659,138 @@ static void walk_zones_in_node(struct seq_file *m, pg_data_t *pgdat,
 }
 #endif
 
+#if defined(CONFIG_PROC_FS) || defined(CONFIG_SYSFS)
+#ifdef CONFIG_ZONE_DMA
+#define TEXT_FOR_DMA(xx) xx "_dma",
+#else
+#define TEXT_FOR_DMA(xx)
+#endif
+
+#ifdef CONFIG_ZONE_DMA32
+#define TEXT_FOR_DMA32(xx) xx "_dma32",
+#else
+#define TEXT_FOR_DMA32(xx)
+#endif
+
+#ifdef CONFIG_HIGHMEM
+#define TEXT_FOR_HIGHMEM(xx) xx "_high",
+#else
+#define TEXT_FOR_HIGHMEM(xx)
+#endif
+
+#define TEXTS_FOR_ZONES(xx) TEXT_FOR_DMA(xx) TEXT_FOR_DMA32(xx) xx "_normal", \
+					TEXT_FOR_HIGHMEM(xx) xx "_movable",
+
+const char * const vmstat_text[] = {
+	/* Zoned VM counters */
+	"nr_free_pages",
+	"nr_inactive_anon",
+	"nr_active_anon",
+	"nr_inactive_file",
+	"nr_active_file",
+	"nr_unevictable",
+	"nr_mlock",
+	"nr_anon_pages",
+	"nr_mapped",
+	"nr_file_pages",
+	"nr_dirty",
+	"nr_writeback",
+	"nr_slab_reclaimable",
+	"nr_slab_unreclaimable",
+	"nr_page_table_pages",
+	"nr_kernel_stack",
+	"nr_unstable",
+	"nr_bounce",
+	"nr_vmscan_write",
+	"nr_writeback_temp",
+	"nr_isolated_anon",
+	"nr_isolated_file",
+	"nr_shmem",
+	"nr_dirtied",
+	"nr_written",
+
+#ifdef CONFIG_NUMA
+	"numa_hit",
+	"numa_miss",
+	"numa_foreign",
+	"numa_interleave",
+	"numa_local",
+	"numa_other",
+#endif
+	"nr_anon_transparent_hugepages",
+	"nr_dirty_threshold",
+	"nr_dirty_background_threshold",
+
+#ifdef CONFIG_VM_EVENT_COUNTERS
+	"pgpgin",
+	"pgpgout",
+	"pswpin",
+	"pswpout",
+
+	TEXTS_FOR_ZONES("pgalloc")
+
+	"pgfree",
+	"pgactivate",
+	"pgdeactivate",
+
+	"pgfault",
+	"pgmajfault",
+
+	TEXTS_FOR_ZONES("pgrefill")
+	TEXTS_FOR_ZONES("pgsteal")
+	TEXTS_FOR_ZONES("pgscan_kswapd")
+	TEXTS_FOR_ZONES("pgscan_direct")
+
+#ifdef CONFIG_NUMA
+	"zone_reclaim_failed",
+#endif
+	"pginodesteal",
+	"slabs_scanned",
+	"kswapd_steal",
+	"kswapd_inodesteal",
+	"kswapd_low_wmark_hit_quickly",
+	"kswapd_high_wmark_hit_quickly",
+	"kswapd_skip_congestion_wait",
+	"pageoutrun",
+	"allocstall",
+
+	"pgrotated",
+
+#ifdef CONFIG_COMPACTION
+	"compact_blocks_moved",
+	"compact_pages_moved",
+	"compact_pagemigrate_failed",
+	"compact_stall",
+	"compact_fail",
+	"compact_success",
+#endif
+
+#ifdef CONFIG_HUGETLB_PAGE
+	"htlb_buddy_alloc_success",
+	"htlb_buddy_alloc_fail",
+#endif
+	"unevictable_pgs_culled",
+	"unevictable_pgs_scanned",
+	"unevictable_pgs_rescued",
+	"unevictable_pgs_mlocked",
+	"unevictable_pgs_munlocked",
+	"unevictable_pgs_cleared",
+	"unevictable_pgs_stranded",
+	"unevictable_pgs_mlockfreed",
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+	"thp_fault_alloc",
+	"thp_fault_fallback",
+	"thp_collapse_alloc",
+	"thp_collapse_alloc_failed",
+	"thp_split",
+#endif
+
+#endif /* CONFIG_VM_EVENTS_COUNTERS */
+};
+#endif /* CONFIG_PROC_FS || CONFIG_SYSFS */
+
+
 #ifdef CONFIG_PROC_FS
 static void frag_show_print(struct seq_file *m, pg_data_t *pgdat,
 						struct zone *zone)
@@ -831,135 +963,6 @@ static const struct file_operations pagetypeinfo_file_ops = {
 	.release	= seq_release,
 };
 
-#ifdef CONFIG_ZONE_DMA
-#define TEXT_FOR_DMA(xx) xx "_dma",
-#else
-#define TEXT_FOR_DMA(xx)
-#endif
-
-#ifdef CONFIG_ZONE_DMA32
-#define TEXT_FOR_DMA32(xx) xx "_dma32",
-#else
-#define TEXT_FOR_DMA32(xx)
-#endif
-
-#ifdef CONFIG_HIGHMEM
-#define TEXT_FOR_HIGHMEM(xx) xx "_high",
-#else
-#define TEXT_FOR_HIGHMEM(xx)
-#endif
-
-#define TEXTS_FOR_ZONES(xx) TEXT_FOR_DMA(xx) TEXT_FOR_DMA32(xx) xx "_normal", \
-					TEXT_FOR_HIGHMEM(xx) xx "_movable",
-
-const char * const vmstat_text[] = {
-	/* Zoned VM counters */
-	"nr_free_pages",
-	"nr_inactive_anon",
-	"nr_active_anon",
-	"nr_inactive_file",
-	"nr_active_file",
-	"nr_unevictable",
-	"nr_mlock",
-	"nr_anon_pages",
-	"nr_mapped",
-	"nr_file_pages",
-	"nr_dirty",
-	"nr_writeback",
-	"nr_slab_reclaimable",
-	"nr_slab_unreclaimable",
-	"nr_page_table_pages",
-	"nr_kernel_stack",
-	"nr_unstable",
-	"nr_bounce",
-	"nr_vmscan_write",
-	"nr_writeback_temp",
-	"nr_isolated_anon",
-	"nr_isolated_file",
-	"nr_shmem",
-	"nr_dirtied",
-	"nr_written",
-
-#ifdef CONFIG_NUMA
-	"numa_hit",
-	"numa_miss",
-	"numa_foreign",
-	"numa_interleave",
-	"numa_local",
-	"numa_other",
-#endif
-	"nr_anon_transparent_hugepages",
-	"nr_dirty_threshold",
-	"nr_dirty_background_threshold",
-
-#ifdef CONFIG_VM_EVENT_COUNTERS
-	"pgpgin",
-	"pgpgout",
-	"pswpin",
-	"pswpout",
-
-	TEXTS_FOR_ZONES("pgalloc")
-
-	"pgfree",
-	"pgactivate",
-	"pgdeactivate",
-
-	"pgfault",
-	"pgmajfault",
-
-	TEXTS_FOR_ZONES("pgrefill")
-	TEXTS_FOR_ZONES("pgsteal")
-	TEXTS_FOR_ZONES("pgscan_kswapd")
-	TEXTS_FOR_ZONES("pgscan_direct")
-
-#ifdef CONFIG_NUMA
-	"zone_reclaim_failed",
-#endif
-	"pginodesteal",
-	"slabs_scanned",
-	"kswapd_steal",
-	"kswapd_inodesteal",
-	"kswapd_low_wmark_hit_quickly",
-	"kswapd_high_wmark_hit_quickly",
-	"kswapd_skip_congestion_wait",
-	"pageoutrun",
-	"allocstall",
-
-	"pgrotated",
-
-#ifdef CONFIG_COMPACTION
-	"compact_blocks_moved",
-	"compact_pages_moved",
-	"compact_pagemigrate_failed",
-	"compact_stall",
-	"compact_fail",
-	"compact_success",
-#endif
-
-#ifdef CONFIG_HUGETLB_PAGE
-	"htlb_buddy_alloc_success",
-	"htlb_buddy_alloc_fail",
-#endif
-	"unevictable_pgs_culled",
-	"unevictable_pgs_scanned",
-	"unevictable_pgs_rescued",
-	"unevictable_pgs_mlocked",
-	"unevictable_pgs_munlocked",
-	"unevictable_pgs_cleared",
-	"unevictable_pgs_stranded",
-	"unevictable_pgs_mlockfreed",
-
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-	"thp_fault_alloc",
-	"thp_fault_fallback",
-	"thp_collapse_alloc",
-	"thp_collapse_alloc_failed",
-	"thp_split",
-#endif
-
-#endif /* CONFIG_VM_EVENTS_COUNTERS */
-};
-
 static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
 							struct zone *zone)
 {
-- 
1.7.3.1

Re: mmotm 2011-04-29-16-25 uploaded

[Randy Dunlap]

On Sun,  1 May 2011 16:47:43 +0900 (JST) KOSAKI Motohiro wrote:

> > On Fri, 29 Apr 2011 16:26:16 -0700 akpm@linux-foundation.org wrote:
> > 
> > > The mm-of-the-moment snapshot 2011-04-29-16-25 has been uploaded to
> > > 
> > >    http://userweb.kernel.org/~akpm/mmotm/
> > > 
> > > and will soon be available at
> > > 
> > >    git://zen-kernel.org/kernel/mmotm.git
> > > 
> > > It contains the following patches against 2.6.39-rc5:
> > 
> > 
> > mm-per-node-vmstat-show-proper-vmstats.patch
> > 
> > when CONFIG_PROC_FS is not enabled:
> > 
> > drivers/built-in.o: In function `node_read_vmstat':
> > node.c:(.text+0x1e995): undefined reference to `vmstat_text'
> > 
> > from drivers/base/node.c
> 
> 
> Thank you for finding that!
> 
> 
> 
> From 63ad7c06f082f8423c033b9f54070e14d561db7e Mon Sep 17 00:00:00 2001
> From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> Date: Sun, 1 May 2011 16:00:09 +0900
> Subject: [PATCH] vmstat: fix build error when SYSFS=y and PROC_FS=n
> 
> Randy Dunlap pointed out node.c makes build error when
> PROC_FS=n. Because node.c#node_read_vmstat() uses vmstat_text
> and it depend on PROC_FS.
> 
> Thus, this patch change it to depend both SYSFS and PROC_FS.
> 
> Reported-by: Randy Dunlap <rdunlap@xenotime.net>

Acked-by: Randy Dunlap <rdunlap@xenotime.net>

Thanks.

> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> ---
>  mm/vmstat.c |  261 ++++++++++++++++++++++++++++++-----------------------------
>  1 files changed, 132 insertions(+), 129 deletions(-)


---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

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