[RFC PATCH v2, part4 26/39] mm/PARISC: prepare for removing num_physpages and simplify mem_init()

Jiang Liu
2013-03-24T07:32:47Z

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/parisc/mm/init.c | 46 +++-------------------------------------------
1 file changed, 3 insertions(+), 43 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1fe9d841..f80c175 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -214,7 +214,6 @@ static void __init setup_bootmem(void)
mem_limit_func(); /* check for "mem=" argument */

mem_max = 0;
- num_physpages = 0;
for (i = 0; i < npmem_ranges; i++) {
unsigned long rsize;

@@ -229,10 +228,8 @@ static void __init setup_bootmem(void)
npmem_ranges = i + 1;
mem_max = mem_limit;
}
- num_physpages += pmem_ranges[i].pages;
break;
}
- num_physpages += pmem_ranges[i].pages;
mem_max += rsize;
}

@@ -532,7 +529,7 @@ void free_initmem(void)
* pages are no-longer executable */
flush_icache_range(init_begin, init_end);

- num_physpages += free_initmem_default(-1);
+ free_initmem_default(-1);

/* set up a new led state on systems shipped LED State panel */
pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
@@ -580,8 +577,6 @@ unsigned long pcxl_dma_start __read_mostly;

void __init mem_init(void)
{
- int codesize, reservedpages, datasize, initsize;
-
/* Do sanity checks on page table constants */
BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
@@ -603,33 +598,6 @@ void __init mem_init(void)
}
#endif

- codesize = (unsigned long)_etext - (unsigned long)_text;
- datasize = (unsigned long)_edata - (unsigned long)_etext;
- initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
-
- reservedpages = 0;
-{
- unsigned long pfn;
-#ifdef CONFIG_DISCONTIGMEM
- int i;
-
- for (i = 0; i < npmem_ranges; i++) {
- for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) {
- if (PageReserved(pfn_to_page(pfn)))
- reservedpages++;
- }
- }
-#else /* !CONFIG_DISCONTIGMEM */
- for (pfn = 0; pfn < max_pfn; pfn++) {
- /*
- * Only count reserved RAM pages
- */
- if (PageReserved(pfn_to_page(pfn)))
- reservedpages++;
- }
-#endif
-}
-
#ifdef CONFIG_PA11
if (hppa_dma_ops == &pcxl_dma_ops) {
pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
@@ -643,15 +611,7 @@ void __init mem_init(void)
parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
#endif

- printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- num_physpages << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10
- );
-
+ mem_init_print_info(NULL);
#ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
printk("virtual kernel memory layout:\n"
" vmalloc : 0x%p - 0x%p (%4ld MB)\n"
@@ -1099,6 +1059,6 @@ void flush_tlb_all(void)
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- num_physpages += free_reserved_area(start, end, -1, "initrd");
+ free_reserved_area(start, end, -1, "initrd");
}
#endif
--
1.7.9.5