diff options
| author | Roman Gushchin <guro@fb.com> | 2018-04-10 16:27:36 -0700 |
|---|---|---|
| committer | Vijayanand Jitta <vjitta@codeaurora.org> | 2018-05-07 10:44:31 +0530 |
| commit | 7e22f75445517436fd3e937ef865909408cc625c (patch) | |
| tree | 7e48011fa92a2b2dbe1088c472cf6efc4b8d6030 /mm/vmstat.c | |
| parent | cb0e8e7c96590b4df7485c2c815fc131b7838325 (diff) | |
mm: introduce NR_INDIRECTLY_RECLAIMABLE_BYTES
Patch series "indirectly reclaimable memory", v2.
This patchset introduces the concept of indirectly reclaimable memory
and applies it to fix the issue of when a big number of dentries with
external names can significantly affect the MemAvailable value.
This patch (of 3):
Introduce a concept of indirectly reclaimable memory and adds the
corresponding memory counter and /proc/vmstat item.
Indirectly reclaimable memory is any sort of memory, used by the kernel
(except of reclaimable slabs), which is actually reclaimable, i.e. will
be released under memory pressure.
The counter is in bytes, as it's not always possible to count such
objects in pages. The name contains BYTES by analogy to
NR_KERNEL_STACK_KB.
Link: http://lkml.kernel.org/r/20180305133743.12746-2-guro@fb.com
Signed-off-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-Commit: eb59254608bc1d42c4c6afdcdce9c0d3ce02b318
Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Change-Id: Ie15abc33dcb13091e3acfa04dd55c664e1a24e70
Signed-off-by: Vijayanand Jitta <vjitta@codeaurora.org>
Diffstat (limited to 'mm/vmstat.c')
| -rw-r--r-- | mm/vmstat.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index 6c841595b963..9ab13e3be5df 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -765,6 +765,7 @@ const char * const vmstat_text[] = { "nr_anon_transparent_hugepages", "nr_free_cma", "nr_swapcache", + "nr_indirectly_reclaimable", /* enum writeback_stat_item counters */ "nr_dirty_threshold", |