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 10:41:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:Redirty an inode: set its when-it-was dirtied timestamp and move it to the* furthest end of its superblock's dirty-inode list.* Before stamping the inode's ->dirtied_when, we check to see whether it is

函数原型:static void redirty_tail(struct inode *inode, struct bdi_writeback *wb)

返回类型:void

参数:

类型参数名称
struct inode *inode
struct bdi_writeback *wb
1177  如果非链表为空
1180  tail等于wb_inode(链表后项)
1181  如果time_before(jiffies of first dirtying , jiffies of first dirtying )则jiffies of first dirtying 等于jiffies
1184  de_io_list_move_locked - move an inode onto a bdi_writeback IO list*@inode: inode to be moved*@wb: target bdi_writeback*@head: one of @wb->b_{dirty|io|more_io|dirty_time}* Move @inode->i_io_list to @list of @wb and set %WB_has_dirty_io
调用者
名称描述
requeue_inodeFind proper writeback list for the inode depending on its current state and* possibly also change of its state while we were doing writeback. Here we* handle things such as livelock prevention or fairness of writeback among* inodes
writeback_sb_inodesWrite a portion of b_io inodes which belong to @sb.* Return the number of pages and/or inodes written.* NOTE! This is called with wb->list_lock held, and will* unlock and relock that for each inode it ends up doing* IO for.
__writeback_inodes_wb