replace_page_cache_page(9) - phpMan
REPLACE_PAGE_CACHE_P(9) Memory Management in Linux REPLACE_PAGE_CACHE_P(9)
NAME
replace_page_cache_page - replace a pagecache page with a new one
SYNOPSIS
int replace_page_cache_page(struct page * old, struct page * new, gfp_t gfp_mask);
ARGUMENTS
old
page to be replaced
new
page to replace with
gfp_mask
allocation mode
DESCRIPTION
This function replaces a page in the pagecache with a new one. On success it acquires the
pagecache reference for the new page and drops it for the old page. Both the old and new
pages must be locked. This function does not add the new page to the LRU, the caller must
do that.
The remove + add is atomic. The only way this function can fail is memory allocation
failure.
COPYRIGHT
Kernel Hackers Manual 4.8. January 2017 REPLACE_PAGE_CACHE_P(9)
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