函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\asm-generic\bitops\instrumented-non-atomic.h Create Date:2022-07-27 06:38:11
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__test_and_set_bit - Set a bit and return its old value*@nr: Bit to set*@addr: Address to count from* This operation is non-atomic. If two instances of this operation race, one* can appear to succeed but actually fail.

函数原型：static inline bool __test_and_set_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
71  kasan_check_write(addr + BIT_WORD(nr), sizeof(long))
72  返回:arch___test_and_set_bit(nr, addr)
调用者
名称描述
node_set_markrns true if the bit was set
kasan_bitops
do_clear_cpu_cap
warn_on_bintablePrint each legacy sysctl (approximately) only once.* To avoid making the tables non-const use a external* hash-table instead.* Worst case hash collision: 6, but very rarely.* NOTE! We don't use the SMP-safe bit tests. We simply* don't care enough.
vm_lock_anon_vma
keyctl_pkey_params_parseParse the information string which consists of key=val pairs.
__test_and_set_bit_le