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| author | Tejun Heo <tj@kernel.org> | 2009-02-26 02:54:17 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-02-26 02:54:17 +0100 |
| commit | e317603694bfd17b28a40de9d65e1a4ec12f816e (patch) | |
| tree | ae286d9e1ae9ffacdd325ea76cd1d9ee88032efc /include | |
| parent | alloc_percpu: fix UP build (diff) | |
| download | linux-e317603694bfd17b28a40de9d65e1a4ec12f816e.tar.xz linux-e317603694bfd17b28a40de9d65e1a4ec12f816e.zip | |
percpu: fix too low alignment restriction on UP
UP __alloc_percpu() triggered WARN_ON_ONCE() if the requested
alignment is larger than that of unsigned long long, which is too
small for all the cacheline aligned allocations. Bump it up to
SMP_CACHE_BYTES which kmalloc allocations generally guarantee.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/percpu.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index d8e5a9abbce0..545b068bcb70 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -156,7 +156,7 @@ static inline void *__alloc_percpu(size_t size, size_t align) * on it. Larger alignment should only be used for module * percpu sections on SMP for which this path isn't used. */ - WARN_ON_ONCE(align > __alignof__(unsigned long long)); + WARN_ON_ONCE(align > SMP_CACHE_BYTES); return kzalloc(size, GFP_KERNEL); } |