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FROMGIT: mm: cma: add trace events for CMA alloc perf testing

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Add cma and migrate trace events to enable CMA allocation performance to
be measured via ftrace.

Link: https://lkml.kernel.org/r/20210324160740.15901-1-georgi.djakov@linaro.org
Signed-off-by: Liam Mark <lmark@codeaurora.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Bug: 178721512
(cherry picked from commit e0240efc7034 https://github.com/hnaz/linux-mm tags/v5.12-rc7-mmots-2021-04-11-20-49)
Change-Id: I72b61ce8b827c582e4d90717f4dd2ae5c34cd90b
Signed-off-by: Georgi Djakov <quic_c_gdjako@quicinc.com>
This commit is contained in:
Liam Mark
2021-04-12 00:02:38 -04:00
committed by Suren Baghdasaryan
parent 48b3f756ed
commit c453643efa
4 changed files with 66 additions and 1 deletions
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2
mm/migrate.c
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@@ -1405,6 +1405,8 @@ int migrate_pages(struct list_head *from, new_page_t get_new_page,
int swapwrite = current->flags & PF_SWAPWRITE;
int rc, nr_subpages;
trace_mm_migrate_pages_start(mode, reason);
if (!swapwrite)
current->flags |= PF_SWAPWRITE;