table of contents
| __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, or a swap entry from shmem/tmpfs, it is returned.
Otherwise, NULL is returned.
__find_lock_page may sleep.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |