函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\iomap\buffered-io.c Create Date:2022-07-29 11:07:19
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：iomap_write_failed

函数原型：static void iomap_write_failed(struct inode *inode, loff_t pos, unsigned len)

返回类型：void

参数：

类型参数名称
struct inode *inode
loff_tpos
unsignedlen
573  i_size等于NOTE: in a 32bit arch with a preemptable kernel and* an UP compile the i_size_read/write must be atomic* with respect to the local cpu (unlike with preempt disabled),* but they don't need to be atomic with respect to other cpus like in* true SMP (so they
579  如果pos加len大于i_size则runcate_pagecache_range - unmap and remove pagecache that is hole-punched*@inode: inode*@lstart: offset of beginning of hole*@lend: offset of last byte of hole* This function should typically be called before the filesystem
调用者
名称描述
iomap_write_begin
iomap_write_end