mm/page_isolation.c: add new tracepoint, test_pages_isolated

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cma allocation should be guranteeded to succeed.  But sometimes it can
fail in the current implementation.  To track down the problem, we need
to know which page is problematic and this new tracepoint will report
it.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

...

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Joonsoo Kim 2016-01-14 15:18:42 -08:00 • committed by Linus Torvalds

parent fea85cff11

commit 0f0848e511

2 changed files with 43 additions and 0 deletions

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include/trace/events/page_isolation.h

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