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| author | David Rientjes <rientjes@google.com> | 2018-10-26 15:09:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-26 16:26:35 -0700 |
| commit | 4a222127f3631e6cdde228e3bb6b599f52b96d14 (patch) | |
| tree | 3491c4f5c4a8eb4f0ca2e9ae416a53fcdce009ea /include | |
| parent | 61855f021c3ae2ccc244111e2a321690f9786aed (diff) | |
| download | linux-4a222127f3631e6cdde228e3bb6b599f52b96d14.tar.bz2 | |
mm/page_alloc.c: initialize num_movable in move_freepages()
If move_freepages_block() returns 0 because !zone_spans_pfn(),
*num_movable can hold the value from the stack because it does not get
initialized in move_freepages().
Move the initialization to move_freepages_block() to guarantee the value
actually makes sense.
This currently doesn't affect its only caller where num_movable != NULL,
so no bug fix, but just more robust.
Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1810051355490.212229@chino.kir.corp.google.com
Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Greg Thelen <gthelen@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions