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FIND_LOCK_ENTRY(9) Memory Management in Linux FIND_LOCK_ENTRY(9)

NAME

find_lock_entry - locate, pin and lock a page cache entry

SYNOPSIS

struct page * find_lock_entry(struct address_space * mapping, pgoff_t offset);

ARGUMENTS

mapping
the address_space to search

offset

the page cache 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, or a swap entry from shmem/tmpfs, it is returned.

Otherwise, NULL is returned.

find_lock_entry may sleep.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.