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authorDavid Rientjes <rientjes@google.com>2014-08-07 03:07:52 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-07 05:01:21 +0400
commite972a070e2d3296cd2e2cc2fd0561ce89a1d5ebf (patch)
tree567ad846183dc3f226cddeb0d7c353fb640b047e /include/linux/oom.h
parent8d060bf490930f305c4efc45724e861a268f4d2f (diff)
downloadlinux-e972a070e2d3296cd2e2cc2fd0561ce89a1d5ebf.tar.xz
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.h4
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);