Function report |
Source Code:fs\buffer.c |
Create Date:2022-07-28 20:14:10 |
Last Modify:2020-03-18 10:38:29 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:__block_write_begin
Proto:int __block_write_begin(struct page *page, loff_t pos, unsigned len, get_block_t *get_block)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct page * | page | |
loff_t | pos | |
unsigned | len | |
get_block_t * | get_block |
2058 | Return __block_write_begin_int(page, pos, len, get_block, NULL) |
Name | Describe |
---|---|
block_write_begin | lock_write_begin takes care of the basic task of block allocation and* bringing partial write blocks uptodate first.* The filesystem needs to handle block truncation upon failure. |
block_page_mkwrite | lock_page_mkwrite() is not allowed to change the file size as it gets* called from a page fault handler when a page is first dirtied |
nobh_write_begin | On entry, the page is fully not uptodate.* On exit the page is fully uptodate in the areas outside (from,to)* The filesystem needs to handle block truncation upon failure. |
Source code conversion tool public plug-in interface | X |
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