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| author | David Rientjes <[email protected]> | 2018-03-22 23:17:45 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2018-03-23 00:07:02 +0000 |
| commit | 9d3c3354bb85bab4d865fe95039443f09a4c8394 (patch) | |
| tree | 69d708ca86450e18715e9ebfb9ca539237b0c075 /drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | |
| parent | mm/vmscan: wake up flushers for legacy cgroups too (diff) | |
| download | kernel-9d3c3354bb85bab4d865fe95039443f09a4c8394.tar.gz kernel-9d3c3354bb85bab4d865fe95039443f09a4c8394.zip | |
mm, thp: do not cause memcg oom for thp
Commit 2516035499b9 ("mm, thp: remove __GFP_NORETRY from khugepaged and
madvised allocations") changed the page allocator to no longer detect
thp allocations based on __GFP_NORETRY.
It did not, however, modify the mem cgroup try_charge() path to avoid
oom kill for either khugepaged collapsing or thp faulting. It is never
expected to oom kill a process to allocate a hugepage for thp; reclaim
is governed by the thp defrag mode and MADV_HUGEPAGE, but allocations
(and charging) should fallback instead of oom killing processes.
Link: http://lkml.kernel.org/r/[email protected]
Fixes: 2516035499b9 ("mm, thp: remove __GFP_NORETRY from khugepaged and madvised allocations")
Signed-off-by: David Rientjes <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Johannes Weiner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h')
0 files changed, 0 insertions, 0 deletions