函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\fscache.h Create Date:2022-07-27 07:37:17
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:scache_read_or_alloc_pages - Read pages from the cache and/or allocate* blocks in which to store them*@cookie: The cookie representing the cache object*@mapping: The netfs inode mapping to which the pages will be attached*@pages: A list of potential netfs

函数原型:static inline int fscache_read_or_alloc_pages(struct fscache_cookie *cookie, struct address_space *mapping, struct list_head *pages, unsigned *nr_pages, fscache_rw_complete_t end_io_func, void *context, gfp_t gfp)

返回类型:int

参数:

类型参数名称
struct fscache_cookie *cookie
struct address_space *mapping
struct list_head *pages
unsigned *nr_pages
fscache_rw_complete_tend_io_func
void *context
gfp_tgfp
597  如果fscache_cookie_valid(cookie)且fscache_cookie_enabled(cookie)则返回:__fscache_read_or_alloc_pages(cookie, mapping, pages, nr_pages, end_io_func, context, gfp)
601  否则返回:负ENOBUFS