函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\asm-generic\atomic-instrumented.h Create Date:2022-07-27 06:38:47
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：atomic_sub_and_test

函数原型：static inline bool atomic_sub_and_test(int i, atomic_t *v)

返回类型：bool

参数：

类型参数名称
inti
atomic_t *v
737  kasan_check_write(v, v的长度)
738  返回:arch_atomic_sub_and_test - subtract value from variable and test result*@i: integer value to subtract*@v: pointer of type atomic_t* Atomically subtracts @i from @v and returns* true if the result is zero, or false for all* other cases.
调用者
名称描述
padata_serial_worker
exit_aioxit_aio: called when the last user of mm goes away. At this point, there is* no way for any new requests to be submited or any of the io_* syscalls to be* called on the context.* There may be outstanding kiocbs, but free_ioctx() will explicitly wait on
atomic_long_sub_and_test
page_ref_sub_and_test