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Merge branch 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git into for-3.16 

Pull percpu/for-3.15-fixes into percpu/for-3.16 to receive
0c36b390a5 ("percpu-refcount: fix usage of this_cpu_ops").

The merge doesn't produce any conflict but the automatic merge is
still incorrect because 4fb6e25049 ("percpu-refcount: implement
percpu_ref_tryget()") added another use of __this_cpu_inc() which
should also be converted to this_cpu_ince().

This commit pulls in percpu/for-3.15-fixes and converts the newly
added __this_cpu_inc() to this_cpu_inc().

Signed-off-by: Tejun Heo <tj@kernel.org>
hifive-unleashed-5.1
Tejun Heo 2014-06-04 12:50:14 -04:00
parent 4fb6e25049 0c36b390a5
commit 315c5554c4
2 changed files with 5 additions and 5 deletions
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8
include/linux/percpu-refcount.h
View File

@ -110,7 +110,7 @@ static inline void percpu_ref_get(struct percpu_ref *ref)
pcpu_count = ACCESS_ONCE(ref->pcpu_count);
if (likely(REF_STATUS(pcpu_count) == PCPU_REF_PTR))
__this_cpu_inc(*pcpu_count);
this_cpu_inc(*pcpu_count);
else
atomic_inc(&ref->count);
@ -136,7 +136,7 @@ static inline bool percpu_ref_tryget(struct percpu_ref *ref)
pcpu_count = ACCESS_ONCE(ref->pcpu_count);
if (likely(REF_STATUS(pcpu_count) == PCPU_REF_PTR)) {
__this_cpu_inc(*pcpu_count);
this_cpu_inc(*pcpu_count);
ret = true;
} else {
ret = atomic_inc_not_zero(&ref->count);
@ -171,7 +171,7 @@ static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
pcpu_count = ACCESS_ONCE(ref->pcpu_count);
if (likely(REF_STATUS(pcpu_count) == PCPU_REF_PTR)) {
__this_cpu_inc(*pcpu_count);
this_cpu_inc(*pcpu_count);
ret = true;
}
@ -196,7 +196,7 @@ static inline void percpu_ref_put(struct percpu_ref *ref)
pcpu_count = ACCESS_ONCE(ref->pcpu_count);
if (likely(REF_STATUS(pcpu_count) == PCPU_REF_PTR))
__this_cpu_dec(*pcpu_count);
this_cpu_dec(*pcpu_count);
else if (unlikely(atomic_dec_and_test(&ref->count)))
ref->release(ref);

2
mm/percpu.c
View File

@ -610,7 +610,7 @@ static struct pcpu_chunk *pcpu_alloc_chunk(void)
chunk->map = pcpu_mem_zalloc(PCPU_DFL_MAP_ALLOC *
sizeof(chunk->map[0]));
if (!chunk->map) {
kfree(chunk);
pcpu_mem_free(chunk, pcpu_chunk_struct_size);
return NULL;
}