函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\fs-writeback.c Create Date:2022-07-29 10:41:25
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：wb_start_writeback

函数原型：static void wb_start_writeback(struct bdi_writeback *wb, enum wb_reason reason)

返回类型：void

参数：

类型参数名称
struct bdi_writeback *wb
enum wb_reasonreason
1079  如果非wb_has_dirty_io(wb)则返回
1090  如果st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from或st_and_set_bit - Set a bit and return its old value*@nr: Bit to set*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).则返回
1094  start_all_reason等于reason
1095  wb_wakeup(wb)
调用者
名称描述
__wakeup_flusher_threads_bdiStart writeback of `nr_pages' pages on this bdi. If `nr_pages' is zero,* write back the whole world.