Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\bitops.h Create Date:2022-07-28 05:34:10
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:arch_test_and_set_bit_lock

Proto:static __always_inline bool arch_test_and_set_bit_lock(long nr, volatile unsigned long *addr)

Type:bool

Parameter:

TypeParameterName
longnr
volatile unsigned long *addr
144  Return arch_test_and_set_bit(nr, addr)
Caller
NameDescribe
test_and_set_bit_lockst_and_set_bit_lock - Set a bit and return its old value, for lock*@nr: Bit to set*@addr: Address to count from* This operation is atomic and provides acquire barrier semantics if* the returned value is 0.* It can be used to implement bit locks.