spin_trylock

函数名称：spin_trylock

函数原型：static __always_inline int spin_trylock(spinlock_t *lock)

返回类型：int

参数：

类型	参数	名称
spinlock_t *	lock

348

返回: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)

**调用者**
名称	描述
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
__netif_tx_trylock
qdisc_run_begin

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码