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>
diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
index fe5a334..ff99032 100644
--- a/lib/percpu-refcount.c
+++ b/lib/percpu-refcount.c
@@ -40,6 +40,7 @@
* 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 @@
* 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;
