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Groups > linux.kernel > #1573532
| From | Shaohua Li <shli@fb.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH V2 6/7] proc: show MADV_FREE pages info in smaps |
| Date | 2017-02-04 00:40 +0100 |
| Message-ID | <t6VCq-c7-13@gated-at.bofh.it> (permalink) |
| References | <t6VCp-c7-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Cc: Michal Hocko <mhocko@suse.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
---
fs/proc/task_mmu.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index ee3efb2..8f2423f 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -440,6 +440,7 @@ struct mem_size_stats {
unsigned long private_dirty;
unsigned long referenced;
unsigned long anonymous;
+ unsigned long lazyfree;
unsigned long anonymous_thp;
unsigned long shmem_thp;
unsigned long swap;
@@ -456,8 +457,11 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page,
int i, nr = compound ? 1 << compound_order(page) : 1;
unsigned long size = nr * PAGE_SIZE;
- if (PageAnon(page))
+ if (PageAnon(page)) {
mss->anonymous += size;
+ if (!PageSwapBacked(page))
+ mss->lazyfree += size;
+ }
mss->resident += size;
/* Accumulate the size in pages that have been accessed. */
@@ -770,6 +774,7 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
"Private_Dirty: %8lu kB\n"
"Referenced: %8lu kB\n"
"Anonymous: %8lu kB\n"
+ "LazyFree: %8lu kB\n"
"AnonHugePages: %8lu kB\n"
"ShmemPmdMapped: %8lu kB\n"
"Shared_Hugetlb: %8lu kB\n"
@@ -788,6 +793,7 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
mss.private_dirty >> 10,
mss.referenced >> 10,
mss.anonymous >> 10,
+ mss.lazyfree >> 10,
mss.anonymous_thp >> 10,
mss.shmem_thp >> 10,
mss.shared_hugetlb >> 10,
--
2.9.3
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[PATCH V2 0/7] mm: fix some MADV_FREE issues Shaohua Li <shli@fb.com> - 2017-02-04 00:40 +0100
[PATCH V2 5/7] mm: add vmstat account for MADV_FREE pages Shaohua Li <shli@fb.com> - 2017-02-04 00:40 +0100
Re: [PATCH V2 5/7] mm: add vmstat account for MADV_FREE pages Michal Hocko <mhocko@kernel.org> - 2017-02-10 14:30 +0100
[PATCH V2 4/7] mm: enable MADV_FREE for swapless system Shaohua Li <shli@fb.com> - 2017-02-04 00:40 +0100
[PATCH V2 6/7] proc: show MADV_FREE pages info in smaps Shaohua Li <shli@fb.com> - 2017-02-04 00:40 +0100
Re: [PATCH V2 6/7] proc: show MADV_FREE pages info in smaps Michal Hocko <mhocko@kernel.org> - 2017-02-10 15:10 +0100
[PATCH V2 3/7] mm: reclaim MADV_FREE pages Shaohua Li <shli@fb.com> - 2017-02-04 00:40 +0100
Re: [PATCH V2 3/7] mm: reclaim MADV_FREE pages Minchan Kim <minchan@kernel.org> - 2017-02-10 08:00 +0100
Re: [PATCH V2 3/7] mm: reclaim MADV_FREE pages Minchan Kim <minchan@kernel.org> - 2017-02-13 06:10 +0100
Re: [PATCH V2 3/7] mm: reclaim MADV_FREE pages Michal Hocko <mhocko@kernel.org> - 2017-02-10 14:30 +0100
[PATCH V2 1/7] mm: don't assume anonymous pages have SwapBacked flag Shaohua Li <shli@fb.com> - 2017-02-04 00:40 +0100
[PATCH V2 7/7] mm: add a separate RSS for MADV_FREE pages Shaohua Li <shli@fb.com> - 2017-02-04 00:40 +0100
Re: [PATCH V2 7/7] mm: add a separate RSS for MADV_FREE pages Michal Hocko <mhocko@kernel.org> - 2017-02-10 14:40 +0100
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