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smaps: account swap entries

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Show the amount of swap for each vma.  This can be used to see where all the
swap goes.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Matt Mackall <mpm@selenic.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peter Zijlstra 2008-04-28 02:12:55 -07:00 committed by Linus Torvalds
parent e20b8cca76
commit 214e471ff9
1 changed files with 12 additions and 4 deletions
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16
fs/proc/task_mmu.c
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@ -338,8 +338,7 @@ const struct file_operations proc_maps_operations = {
#define PSS_SHIFT 12
#ifdef CONFIG_PROC_PAGE_MONITOR
struct mem_size_stats
{
struct mem_size_stats {
struct vm_area_struct *vma;
unsigned long resident;
unsigned long shared_clean;
@ -347,6 +346,7 @@ struct mem_size_stats
unsigned long private_clean;
unsigned long private_dirty;
unsigned long referenced;
unsigned long swap;
u64 pss;
};
@ -363,6 +363,12 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
for (; addr != end; pte++, addr += PAGE_SIZE) {
ptent = *pte;
if (is_swap_pte(ptent)) {
mss->swap += PAGE_SIZE;
continue;
}
if (!pte_present(ptent))
continue;
@ -421,7 +427,8 @@ static int show_smap(struct seq_file *m, void *v)
"Shared_Dirty: %8lu kB\n"
"Private_Clean: %8lu kB\n"
"Private_Dirty: %8lu kB\n"
"Referenced: %8lu kB\n",
"Referenced: %8lu kB\n"
"Swap: %8lu kB\n",
(vma->vm_end - vma->vm_start) >> 10,
mss.resident >> 10,
(unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
@ -429,7 +436,8 @@ static int show_smap(struct seq_file *m, void *v)
mss.shared_dirty >> 10,
mss.private_clean >> 10,
mss.private_dirty >> 10,
mss.referenced >> 10);
mss.referenced >> 10,
mss.swap >> 10);
return ret;
}