__FIND_LOCK_PAGE(9) Memory Management in Linux __FIND_LOCK_PAGE(9)
NAME
__find_lock_page - locate, pin and lock a pagecache page
SYNOPSIS
struct page * __find_lock_page(struct address_space * mapping, pgoff_t offset);
ARGUMENTS
mapping
the address_space to search
offset
the page index
DESCRIPTION
Looks up the page cache slot at mapping & offset. If there is a page cache page, it is returned locked and with an increased refcount.
If the slot holds a shadow entry of a previously evicted page, it is returned.
Otherwise, NULL is returned.
__find_lock_page may sleep.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 __FIND_LOCK_PAGE(9)
