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| author | David Rientjes <rientjes@google.com> | 2014-08-06 16:07:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:21 -0700 |
| commit | e972a070e2d3296cd2e2cc2fd0561ce89a1d5ebf (patch) | |
| tree | 567ad846183dc3f226cddeb0d7c353fb640b047e /include/linux/oom.h | |
| parent | 8d060bf490930f305c4efc45724e861a268f4d2f (diff) | |
| download | linux-stable-e972a070e2d3296cd2e2cc2fd0561ce89a1d5ebf.tar.gz linux-stable-e972a070e2d3296cd2e2cc2fd0561ce89a1d5ebf.tar.bz2 linux-stable-e972a070e2d3296cd2e2cc2fd0561ce89a1d5ebf.zip | |
mm, oom: rename zonelist locking functions
try_set_zonelist_oom() and clear_zonelist_oom() are not named properly
to imply that they require locking semantics to avoid out_of_memory()
being reordered.
zone_scan_lock is required for both functions to ensure that there is
proper locking synchronization.
Rename try_set_zonelist_oom() to oom_zonelist_trylock() and rename
clear_zonelist_oom() to oom_zonelist_unlock() to imply there is proper
locking semantics.
At the same time, convert oom_zonelist_trylock() to return bool instead
of int since only success and failure are tested.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/oom.h')
| -rw-r--r-- | include/linux/oom.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/oom.h b/include/linux/oom.h index 4cd62677feb9..647395a1a550 100644 --- a/include/linux/oom.h +++ b/include/linux/oom.h @@ -55,8 +55,8 @@ extern void oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order, struct mem_cgroup *memcg, nodemask_t *nodemask, const char *message); -extern int try_set_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags); -extern void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags); +extern bool oom_zonelist_trylock(struct zonelist *zonelist, gfp_t gfp_flags); +extern void oom_zonelist_unlock(struct zonelist *zonelist, gfp_t gfp_flags); extern void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask, int order, const nodemask_t *nodemask); |