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Commit 214e471f authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Linus Torvalds
Browse files

smaps: account swap entries 



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: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: default avatarMatt Mackall <mpm@selenic.com>
Acked-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e20b8cca

fs/proc/task_mmu.c

+12 −4
Original line number Diff line number Diff line
@@ -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;

}