函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\block_dev.c Create Date:2022-07-29 10:46:01
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：blkdev_write_end

函数原型：static int blkdev_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata)

返回类型：int

参数：

类型参数名称
struct file *file
struct address_space *mapping
loff_tpos
unsignedlen
unsignedcopied
struct page *page
void *fsdata
636  ret等于block_write_end(file, mapping, pos, len, copied, page, fsdata)
638  lock_page - unlock a locked page*@page: the page* Unlocks the page and wakes up sleepers in ___wait_on_page_locked().* Also wakes sleepers in wait_on_page_writeback() because the wakeup* mechanism between PageLocked pages and PageWriteback pages is shared.
639  Perform a free_page(), also freeing any swap cache associated with* this page if it is the last user of the page.
641  返回:ret