函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\buffer_head.h Create Date:2022-07-27 13:23:06
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：test_clear_buffer_dirty

函数原型：static inline __attribute__((__always_inline__)) int test_clear_buffer_dirty(struct buffer_head *bh)

返回类型：int

参数：

类型参数名称
struct buffer_head *bh
122  返回:st_and_clear_bit - Clear a bit and return its old value*@nr: Bit to clear*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).
调用者
名称描述
__block_write_full_pageWhile block_write_full_page is writing back the dirty buffers under* the page lock, whoever dirtied the buffers may decide to clean them* again at any time
ll_rw_blockll_rw_block: low-level access to block devices (DEPRECATED)*@op: whether to %READ or %WRITE*@op_flags: req_flag_bits*@nr: number of &struct buffer_heads in the array*@bhs: array of pointers to &struct buffer_head* ll_rw_block() takes an array of pointers
write_dirty_buffer
__sync_dirty_bufferFor a data-integrity writeout, we need to wait upon any in-progress I/O* and then start new I/O and then wait upon it. The caller must have a ref on* the buffer_head.