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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

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* '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
This commit is contained in:
Linus Torvalds 2010-09-07 14:08:37 -07:00
commit ce7db282a3
4 changed files with 17 additions and 10 deletions
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6
mm/percpu.c
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@ -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.
*/

4
mm/percpu_up.c
View file

@ -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);