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author | Jens Axboe <jens.axboe@oracle.com> | 2010-04-13 20:03:21 +0200 |
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committer | Jens Axboe <jens.axboe@oracle.com> | 2010-04-13 20:03:21 +0200 |
commit | 4facdaec1ce186e731e6baa04f074804849e9a49 (patch) | |
tree | e521fba8386bf23533cfe21ea5200e615960ec07 /mm/percpu_up.c | |
parent | a11cdaa7af56423a921a8bdad8f5a5f4ddca918a (diff) | |
parent | 0d0fb0f9c5fddef4a10242fe3337f00f528a3099 (diff) | |
download | lwn-4facdaec1ce186e731e6baa04f074804849e9a49.tar.gz lwn-4facdaec1ce186e731e6baa04f074804849e9a49.zip |
Merge branch 'master' into for-2.6.35
Conflicts:
block/blk-cgroup.c
block/cfq-iosched.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'mm/percpu_up.c')
-rw-r--r-- | mm/percpu_up.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/mm/percpu_up.c b/mm/percpu_up.c new file mode 100644 index 000000000000..c4351c7f57d2 --- /dev/null +++ b/mm/percpu_up.c @@ -0,0 +1,30 @@ +/* + * mm/percpu_up.c - dummy percpu memory allocator implementation for UP + */ + +#include <linux/module.h> +#include <linux/percpu.h> +#include <linux/slab.h> + +void __percpu *__alloc_percpu(size_t size, size_t align) +{ + /* + * Can't easily make larger alignment work with kmalloc. WARN + * 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 > SMP_CACHE_BYTES); + return kzalloc(size, GFP_KERNEL); +} +EXPORT_SYMBOL_GPL(__alloc_percpu); + +void free_percpu(void __percpu *p) +{ + kfree(p); +} +EXPORT_SYMBOL_GPL(free_percpu); + +phys_addr_t per_cpu_ptr_to_phys(void *addr) +{ + return __pa(addr); +} |