1GRAB_CACHE_PAGE_NOWA(9)   Memory Management in Linux   GRAB_CACHE_PAGE_NOWA(9)
2
3
4

NAME

6       grab_cache_page_nowait - returns locked page at given index in given
7       cache
8

SYNOPSIS

10       struct page * grab_cache_page_nowait(struct address_space * mapping,
11                                            pgoff_t index);
12

ARGUMENTS

14       mapping
15           target address_space
16
17       index
18           the page index
19

DESCRIPTION

21       Same as grab_cache_page, but do not wait if the page is unavailable.
22       This is intended for speculative data generators, where the data can be
23       regenerated if the page couldn´t be grabbed. This routine should be
24       safe to call while holding the lock for another page.
25
26       Clear __GFP_FS when allocating the page to avoid recursion into the fs
27       and deadlock against the caller´s locked page.
28

30Kernel Hackers Manual 2.6.         June 2019           GRAB_CACHE_PAGE_NOWA(9)
Impressum