函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\bitops.h Create Date:2022-07-27 06:38:08
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：arch_test_and_change_bit

函数原型：static __always_inline bool arch_test_and_change_bit(long nr, volatile unsigned long *addr)

返回类型：bool

参数：

类型参数名称
longnr
volatile unsigned long *addr
201  返回:GEN_BINARY_RMWcc(LOCK_PREFIX__ASM_SIZE(btc), * addr, c, "Ir", nr)
调用者
名称描述
test_and_change_bitst_and_change_bit - Change a bit and return its old value*@nr: Bit to change*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).