Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\locking\qspinlock.c Create Date:2022-07-28 09:51:37
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:lear_pending_set_locked - take ownership and clear the pending bit.*@lock: Pointer to queued spinlock structure* *,1,0 -> *,0,1* Lock stealing is not allowed if this function is used.

Proto:static __always_inline void clear_pending_set_locked(struct qspinlock *lock)

Type:void

Parameter:

TypeParameterName
struct qspinlock *lock
162  WRITE_ONCE(locked_pending, _Q_LOCKED_VAL)
Caller
NameDescribe
queued_spin_lock_slowpathqueued_spin_lock_slowpath - acquire the queued spinlock*@lock: Pointer to queued spinlock structure*@val: Current value of the queued spinlock 32-bit word* (queue tail, pending bit, lock value)* fast : slow : unlock* : :* uncontended (0,0,0) -:--> (0,0,1)