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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¶
struct address_space * mapping
the address_space to search
pgoff_t 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¶
| June 2017 | Kernel Hackers Manual 4.11 |