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| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2013-11-12 23:08:19 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-13 03:09:10 (GMT) |
| commit | 52c8f6a5aeb0bdd396849ecaa72d96f8175528f5 (patch) | |
| tree | 396299d23b3bf478770d4030000851ebd29223cf /mm/page-writeback.c | |
| parent | 5d0f3f72efb1c1968ce1f56c58f9e3e6495effa6 (diff) | |
| download | linux-fsl-qoriq-52c8f6a5aeb0bdd396849ecaa72d96f8175528f5.tar.xz | |
mm: get rid of unnecessary overhead of trace_mm_page_alloc_extfrag()
In general, every tracepoint should be zero overhead if it is disabled.
However, trace_mm_page_alloc_extfrag() is one of exception. It evaluate
"new_type == start_migratetype" even if tracepoint is disabled.
However, the code can be moved into tracepoint's TP_fast_assign() and
TP_fast_assign exist exactly such purpose. This patch does it.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page-writeback.c')
0 files changed, 0 insertions, 0 deletions