spin_trylock

Name:spin_trylock

Proto:static __always_inline int spin_trylock(spinlock_t *lock)

Type:int

Parameter:

Type	Parameter	Name
spinlock_t *	lock

348

Return Define the various spin_lock methods. Note we define these* regardless of whether CONFIG_SMP or CONFIG_PREEMPTION are set. The* various methods are defined as nops in the case they are not* required.( & rlock)

**Caller**
Name	Describe
kdb_send_sig	kdb_send_sig - Allows kdb to send signals without exposing* signal internals. This function checks if the required locks are* available before calling the main signal code, to avoid kdb* deadlocks.
get_dap_lock
z3fold_page_trylock	Try to lock a z3fold page
ioc_release_fn	Slow path for ioc release in put_io_context(). Performs double-lock* dancing to unlink all icq's and then frees ioc.
blkcg_destroy_blkgs	lkcg_destroy_blkgs - responsible for shooting down blkgs@blkcg: blkcg of interest blkgs should be removed while holding both q and blkcg locks
lock_parent
dentry_kill	Finish off a dentry we've decided to kill.* Returns dentry requiring refcount drop, or NULL if we're done.
shrink_lock_dentry	Lock a dentry from shrink list
dentry_lru_isolate
dentry_lru_isolate_shrink
inode_lru_isolate	Isolate the inode from the LRU in preparation for freeing it

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