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| author | Yafang Shao <laoar.shao@gmail.com> | 2019-05-13 17:17:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:46 -0700 |
| commit | b6cfab7ad19d4920d5765e53042cfa62f2fced3d (patch) | |
| tree | b7b6b201fba987c510ba8017058d4e722c53ebfb /mm/page_isolation.c | |
| parent | b1746b991d621e35151386224f455fd6c0d291f0 (diff) | |
| download | lwn-b6cfab7ad19d4920d5765e53042cfa62f2fced3d.tar.gz lwn-b6cfab7ad19d4920d5765e53042cfa62f2fced3d.zip | |
mm, compaction: some tracepoints should be defined only when CONFIG_COMPACTION is set
Only mm_compaction_isolate_{free, migrate}pages may be used when
CONFIG_COMPACTION is not set. All others are used only when
CONFIG_COMPACTION is set.
After this change, if CONFIG_COMPACTION is not set, the tracepoints that
only work when CONFIG_COMPACTION is set will not be exposed to userspace.
Without this change, they will always be exposed in debugfs whether
CONFIG_COMPACTION is set or not. This is an improvement.
Link: http://lkml.kernel.org/r/1552440403-11780-1-git-send-email-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@kernel.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>
Diffstat (limited to 'mm/page_isolation.c')
0 files changed, 0 insertions, 0 deletions