diff options
| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2015-10-23 02:02:14 +0300 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-11-29 06:33:29 +0300 |
| commit | 3a66d7dca186ebdef9b0bf55e216778fa598062c (patch) | |
| tree | 5269e0da221dc9a976e1e35f71068cd949822827 /include | |
| parent | 9ff9d15eddd13ecdd41876c5e1f31ddbb127101c (diff) | |
| download | linux-3a66d7dca186ebdef9b0bf55e216778fa598062c.tar.xz | |
kref: Remove kref_put_spinlock_irqsave()
The last user is gone. Hence remove this function.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kref.h | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/include/linux/kref.h b/include/linux/kref.h index 484604d184be..e15828fd71f1 100644 --- a/include/linux/kref.h +++ b/include/linux/kref.h @@ -19,7 +19,6 @@ #include <linux/atomic.h> #include <linux/kernel.h> #include <linux/mutex.h> -#include <linux/spinlock.h> struct kref { atomic_t refcount; @@ -99,38 +98,6 @@ static inline int kref_put(struct kref *kref, void (*release)(struct kref *kref) return kref_sub(kref, 1, release); } -/** - * kref_put_spinlock_irqsave - decrement refcount for object. - * @kref: object. - * @release: pointer to the function that will clean up the object when the - * last reference to the object is released. - * This pointer is required, and it is not acceptable to pass kfree - * in as this function. - * @lock: lock to take in release case - * - * Behaves identical to kref_put with one exception. If the reference count - * drops to zero, the lock will be taken atomically wrt dropping the reference - * count. The release function has to call spin_unlock() without _irqrestore. - */ -static inline int kref_put_spinlock_irqsave(struct kref *kref, - void (*release)(struct kref *kref), - spinlock_t *lock) -{ - unsigned long flags; - - WARN_ON(release == NULL); - if (atomic_add_unless(&kref->refcount, -1, 1)) - return 0; - spin_lock_irqsave(lock, flags); - if (atomic_dec_and_test(&kref->refcount)) { - release(kref); - local_irq_restore(flags); - return 1; - } - spin_unlock_irqrestore(lock, flags); - return 0; -} - static inline int kref_put_mutex(struct kref *kref, void (*release)(struct kref *kref), struct mutex *lock) |