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| author | Bart Van Assche | 2018-09-26 23:01:07 +0200 |
|---|---|---|
| committer | Jens Axboe | 2018-09-26 23:11:29 +0200 |
| commit | 18c9a6bbe0645a05172a900740b9d2d379d54320 (patch) | |
| tree | 6210abc5d6f4f1a3d2d31c15e0b5fb4e008ae865 /include/linux/percpu-refcount.h | |
| parent | block: Schedule runtime resume earlier (diff) | |
| download | kernel-qcow2-linux-18c9a6bbe0645a05172a900740b9d2d379d54320.tar.gz kernel-qcow2-linux-18c9a6bbe0645a05172a900740b9d2d379d54320.tar.xz kernel-qcow2-linux-18c9a6bbe0645a05172a900740b9d2d379d54320.zip | |
percpu-refcount: Introduce percpu_ref_resurrect()
This function will be used in a later patch to switch the struct
request_queue q_usage_counter from killed back to live. In contrast
to percpu_ref_reinit(), this new function does not require that the
refcount is zero.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jianchao Wang <jianchao.w.wang@oracle.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/percpu-refcount.h')
| -rw-r--r-- | include/linux/percpu-refcount.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h index 009cdf3d65b6..b297cd1cd4f1 100644 --- a/include/linux/percpu-refcount.h +++ b/include/linux/percpu-refcount.h @@ -108,6 +108,7 @@ void percpu_ref_switch_to_atomic_sync(struct percpu_ref *ref); void percpu_ref_switch_to_percpu(struct percpu_ref *ref); void percpu_ref_kill_and_confirm(struct percpu_ref *ref, percpu_ref_func_t *confirm_kill); +void percpu_ref_resurrect(struct percpu_ref *ref); void percpu_ref_reinit(struct percpu_ref *ref); /** |