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| author | Tejun Heo <tj@kernel.org> | 2014-09-08 09:51:30 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-09-08 09:51:30 +0900 |
| commit | a34375ef9e65340a138fc0be287de5c940d260fc (patch) | |
| tree | 2e21b63d7c9240620a59090aa97e1d7c6df95b8c /lib/percpu-refcount.c | |
| parent | 20ae00792c6f1f18fc4fc5965445a145df92827e (diff) | |
| download | lwn-a34375ef9e65340a138fc0be287de5c940d260fc.tar.gz lwn-a34375ef9e65340a138fc0be287de5c940d260fc.zip | |
percpu-refcount: add @gfp to percpu_ref_init()
Percpu allocator now supports allocation mask. Add @gfp to
percpu_ref_init() so that !GFP_KERNEL allocation masks can be used
with percpu_refs too.
This patch doesn't make any functional difference.
v2: blk-mq conversion was missing. Updated.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kent Overstreet <koverstreet@google.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Nicholas A. Bellinger <nab@linux-iscsi.org>
Cc: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'lib/percpu-refcount.c')
| -rw-r--r-- | lib/percpu-refcount.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c index fe5a3342e960..ff9903264a91 100644 --- a/lib/percpu-refcount.c +++ b/lib/percpu-refcount.c @@ -40,6 +40,7 @@ static unsigned __percpu *pcpu_count_ptr(struct percpu_ref *ref) * percpu_ref_init - initialize a percpu refcount * @ref: percpu_ref to initialize * @release: function which will be called when refcount hits 0 + * @gfp: allocation mask to use * * Initializes the refcount in single atomic counter mode with a refcount of 1; * analagous to atomic_set(ref, 1). @@ -47,11 +48,12 @@ static unsigned __percpu *pcpu_count_ptr(struct percpu_ref *ref) * Note that @release must not sleep - it may potentially be called from RCU * callback context by percpu_ref_kill(). */ -int percpu_ref_init(struct percpu_ref *ref, percpu_ref_func_t *release) +int percpu_ref_init(struct percpu_ref *ref, percpu_ref_func_t *release, + gfp_t gfp) { atomic_set(&ref->count, 1 + PCPU_COUNT_BIAS); - ref->pcpu_count_ptr = (unsigned long)alloc_percpu(unsigned); + ref->pcpu_count_ptr = (unsigned long)alloc_percpu_gfp(unsigned, gfp); if (!ref->pcpu_count_ptr) return -ENOMEM; |