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| author | Alex Shi <alex.shi@linux.alibaba.com> | 2020-12-18 14:01:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-19 11:18:37 -0800 |
| commit | a4055888629bc0467d12d912cd7c90acdf3d9b12 (patch) | |
| tree | 8b414314c13e8724c327727ae77e1cb4d5d81af5 /samples | |
| parent | 76358ab547357516ec2dace95ae70c1572d6708c (diff) | |
mm/memcg: warning on !memcg after readahead page charged
Add VM_WARN_ON_ONCE_PAGE() macro.
Since readahead page is charged on memcg too, in theory we don't have to
check this exception now. Before safely remove them all, add a warning
for the unexpected !memcg.
Link: https://lkml.kernel.org/r/1604283436-18880-3-git-send-email-alex.shi@linux.alibaba.com
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions