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| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-04-11 22:27:19 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-04-11 22:27:19 -0400 |
| commit | 39c853ebfe169f187a760b34f9cbf54751bfce00 (patch) | |
| tree | 2a5a741d0cff7d4f90998b31b32ff80cfccd0369 /mm/slub.c | |
| parent | fdc81f45e9f57858da6351836507fbcf1b7583ee (diff) | |
| parent | 01e97e6517053d7c0b9af5248e944a9209909cf5 (diff) | |
| download | op-kernel-dev-39c853ebfe169f187a760b34f9cbf54751bfce00.zip op-kernel-dev-39c853ebfe169f187a760b34f9cbf54751bfce00.tar.gz | |
Merge branch 'for-davem' into for-next
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -2449,7 +2449,8 @@ redo: do { tid = this_cpu_read(s->cpu_slab->tid); c = raw_cpu_ptr(s->cpu_slab); - } while (IS_ENABLED(CONFIG_PREEMPT) && unlikely(tid != c->tid)); + } while (IS_ENABLED(CONFIG_PREEMPT) && + unlikely(tid != READ_ONCE(c->tid))); /* * Irqless object alloc/free algorithm used here depends on sequence @@ -2718,7 +2719,8 @@ redo: do { tid = this_cpu_read(s->cpu_slab->tid); c = raw_cpu_ptr(s->cpu_slab); - } while (IS_ENABLED(CONFIG_PREEMPT) && unlikely(tid != c->tid)); + } while (IS_ENABLED(CONFIG_PREEMPT) && + unlikely(tid != READ_ONCE(c->tid))); /* Same with comment on barrier() in slab_alloc_node() */ barrier(); |
