函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\pagemap.h Create Date:2022-07-27 06:45:57
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：grab_cache_page_nowait - returns locked page at given index in given cache*@mapping: target address_space*@index: the page index* Same as grab_cache_page(), but do not wait if the page is unavailable

函数原型：static inline struct page *grab_cache_page_nowait(struct address_space *mapping, unsigned long index)

返回类型：struct page

参数：

类型参数名称
struct address_space *mapping
unsigned longindex
331  返回:pagecache_get_page - find and get a page reference*@mapping: the address_space to search*@offset: the page index*@fgp_flags: PCG flags*@gfp_mask: gfp mask to use for the page cache data page allocation* Looks up the page cache slot at @mapping & @offset.