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| author | Vladimir Davydov <[email protected]> | 2016-07-26 22:24:30 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-07-26 23:19:19 +0000 |
| commit | 3e79ec7ddc33e5c69c20ce7f768d0e5c8b824f69 (patch) | |
| tree | a53369a4d3b1cdc06be5b2e54ec7b47a4498ad86 /net/unix/af_unix.c | |
| parent | mm: memcontrol: teach uncharge_list to deal with kmem pages (diff) | |
| download | kernel-3e79ec7ddc33e5c69c20ce7f768d0e5c8b824f69.tar.gz kernel-3e79ec7ddc33e5c69c20ce7f768d0e5c8b824f69.zip | |
arch: x86: charge page tables to kmemcg
Page tables can bite a relatively big chunk off system memory and their
allocations are easy to trigger from userspace, so they should be
accounted to kmemcg.
This patch marks page table allocations as __GFP_ACCOUNT for x86. Note
we must not charge allocations of kernel page tables, because they can
be shared among processes from different cgroups so accounting them to a
particular one can pin other cgroups for indefinitely long. So we clear
__GFP_ACCOUNT flag if a page table is allocated for the kernel.
Link: http://lkml.kernel.org/r/7d5c54f6a2bcbe76f03171689440003d87e6c742.1464079538.git.vdavydov@virtuozzo.com
Signed-off-by: Vladimir Davydov <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Minchan Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions