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authorLinus Torvalds <torvalds@linux-foundation.org>2010-09-07 14:08:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-09-07 14:08:37 -0700
commitce7db282a3830f57f5b05ec48288c23a5c4d66d5 (patch)
tree8e191c4b2ffa1658d5c014da5cc6230fc58c1a59 /mm
parentcd4d4fc4137502f88ee871fc015a934dc28535e3 (diff)
parent54157c44471f5e266508ac08d270f2bc5857e8bb (diff)
downloadop-kernel-dev-ce7db282a3830f57f5b05ec48288c23a5c4d66d5.zip
op-kernel-dev-ce7db282a3830f57f5b05ec48288c23a5c4d66d5.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: fix a mismatch between code and comment percpu: fix a memory leak in pcpu_extend_area_map() percpu: add __percpu notations to UP allocator percpu: handle __percpu notations in UP accessors
Diffstat (limited to 'mm')
-rw-r--r--mm/percpu.c6
-rw-r--r--mm/percpu_up.c4
2 files changed, 6 insertions, 4 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index e61dc2c..58c572b 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -393,7 +393,9 @@ static int pcpu_extend_area_map(struct pcpu_chunk *chunk, int new_alloc)
goto out_unlock;
old_size = chunk->map_alloc * sizeof(chunk->map[0]);
- memcpy(new, chunk->map, old_size);
+ old = chunk->map;
+
+ memcpy(new, old, old_size);
chunk->map_alloc = new_alloc;
chunk->map = new;
@@ -1162,7 +1164,7 @@ static struct pcpu_alloc_info * __init pcpu_build_alloc_info(
}
/*
- * Don't accept if wastage is over 25%. The
+ * Don't accept if wastage is over 1/3. The
* greater-than comparison ensures upa==1 always
* passes the following check.
*/
diff --git a/mm/percpu_up.c b/mm/percpu_up.c
index c4351c7..db884fa 100644
--- a/mm/percpu_up.c
+++ b/mm/percpu_up.c
@@ -14,13 +14,13 @@ void __percpu *__alloc_percpu(size_t size, size_t align)
* percpu sections on SMP for which this path isn't used.
*/
WARN_ON_ONCE(align > SMP_CACHE_BYTES);
- return kzalloc(size, GFP_KERNEL);
+ return (void __percpu __force *)kzalloc(size, GFP_KERNEL);
}
EXPORT_SYMBOL_GPL(__alloc_percpu);
void free_percpu(void __percpu *p)
{
- kfree(p);
+ kfree(this_cpu_ptr(p));
}
EXPORT_SYMBOL_GPL(free_percpu);
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