>From 145247b8e776b32c9930018ab65bb6c5401e28ef Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <[email protected]>
Date: Fri, 5 Oct 2007 08:04:03 +0200
Subject: [PATCH] Add more statistics to /proc/$pid/smaps
Add amount of swapped memory and amount of anonymous memory
to /proc/$pid/smaps
Signed-off-by: Maxim Levitsky <[email protected]>
---
fs/proc/task_mmu.c | 18 ++++++++++++++++--
1 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index c24d81a..1c16a7e 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -122,6 +122,9 @@ struct mem_size_stats
unsigned long private_clean;
unsigned long private_dirty;
unsigned long referenced;
+ unsigned long swapped;
+ unsigned long anon;
+
};
struct pmd_walker {
@@ -195,6 +198,8 @@ static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats
seq_printf(m,
"Size: %8lu kB\n"
"Rss: %8lu kB\n"
+ "Swapped: %8lu kB\n"
+ "Anonymous: %8lu kB\n"
"Shared_Clean: %8lu kB\n"
"Shared_Dirty: %8lu kB\n"
"Private_Clean: %8lu kB\n"
@@ -202,6 +207,8 @@ static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats
"Referenced: %8lu kB\n",
(vma->vm_end - vma->vm_start) >> 10,
mss->resident >> 10,
+ mss->swapped >> 10,
+ mss->anon >> 10,
mss->shared_clean >> 10,
mss->shared_dirty >> 10,
mss->private_clean >> 10,
@@ -230,15 +237,22 @@ static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
for (; addr != end; pte++, addr += PAGE_SIZE) {
ptent = *pte;
- if (!pte_present(ptent))
- continue;
+ if (!pte_present(ptent)) {
+ if(pte_none(ptent) || pte_file(ptent))
+ continue;
+ mss->swapped += PAGE_SIZE;
+ continue;
+ }
mss->resident += PAGE_SIZE;
page = vm_normal_page(vma, addr, ptent);
if (!page)
continue;
+ if(PageAnon(page))
+ mss->anon += PAGE_SIZE;
+
/* Accumulate the size in pages that have been accessed. */
if (pte_young(ptent) || PageReferenced(page))
mss->referenced += PAGE_SIZE;
--
1.5.2.5
-
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