diff options
| author | David Hildenbrand <[email protected]> | 2020-10-13 16:55:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-10-13 18:38:33 -0700 |
| commit | 51030a53d81e308f55e0e1d2048d23d8c8d16e5b (patch) | |
| tree | c7f17c391b86d8314ca2f02d30459befd42dcfbe /include/linux/fpga/fpga-mgr.h | |
| parent | c9c510dc2964420038f8527125a2cd5d8fb79cb6 (diff) | |
mm/page_isolation: exit early when pageblock is isolated in set_migratetype_isolate()
Right now, if we have two isolations racing on a pageblock that's in the
MOVABLE zone, we would trigger the WARN_ON_ONCE(). Let's just return
directly, simplifying error handling.
The change was introduced in commit 3d680bdf60a5 ("mm/page_isolation: fix
potential warning from user"). As far as I can see, we currently don't
have alloc_contig_range() users that use the ZONE_MOVABLE (anymore), so
it's currently more a cleanup and a preparation for the future than a fix.
Signed-off-by: David Hildenbrand <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Baoquan He <[email protected]>
Reviewed-by: Pankaj Gupta <[email protected]>
Acked-by: Mike Kravetz <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Michael S. Tsirkin <[email protected]>
Cc: Qian Cai <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: Mike Rapoport <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions