Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\asm-generic\qrwlock.h Create Date:2022-07-28 09:53:22
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:queued_write_trylock - try to acquire write lock of a queue rwlock*@lock : Pointer to queue rwlock structure* Return: 1 if lock acquired, 0 if failed

Proto:static inline int queued_write_trylock(struct qrwlock *lock)

Type:int

Parameter:

TypeParameterName
struct qrwlock *lock
61  cnts = atomic_read( & cnts)
62  If Value for the false possibility is greater at compile time(cnts) Then Return 0
65  Return Value is more likely to compile time(atomic_try_cmpxchg_acquire( & cnts, & cnts, A writer holds the lock ))