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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-05-01 13:35:31 +0200 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-05-10 05:12:52 +0200 |
| commit | d2329aa0c78f4a8dd368bb706f196ab99f692eaa (patch) | |
| tree | 8dcdbf74ed2e54f05633b58585aa0bcb9027c046 /Documentation/filesystems/locking.rst | |
| parent | fs: Convert drop_buffers() to use a folio (diff) | |
| download | linux-d2329aa0c78f4a8dd368bb706f196ab99f692eaa.tar.xz linux-d2329aa0c78f4a8dd368bb706f196ab99f692eaa.zip | |
fs: Add free_folio address space operation
Include documentation and convert the callers to use ->free_folio as
well as ->freepage.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Diffstat (limited to 'Documentation/filesystems/locking.rst')
| -rw-r--r-- | Documentation/filesystems/locking.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst index ddef4a753e73..515bc48ab58b 100644 --- a/Documentation/filesystems/locking.rst +++ b/Documentation/filesystems/locking.rst @@ -250,7 +250,7 @@ prototypes:: sector_t (*bmap)(struct address_space *, sector_t); void (*invalidate_folio) (struct folio *, size_t start, size_t len); bool (*release_folio)(struct folio *, gfp_t); - void (*freepage)(struct page *); + void (*free_folio)(struct folio *); int (*direct_IO)(struct kiocb *, struct iov_iter *iter); bool (*isolate_page) (struct page *, isolate_mode_t); int (*migratepage)(struct address_space *, struct page *, struct page *); @@ -262,10 +262,10 @@ prototypes:: int (*swap_deactivate)(struct file *); locking rules: - All except dirty_folio and freepage may block + All except dirty_folio and free_folio may block ====================== ======================== ========= =============== -ops PageLocked(page) i_rwsem invalidate_lock +ops folio locked i_rwsem invalidate_lock ====================== ======================== ========= =============== writepage: yes, unlocks (see below) read_folio: yes, unlocks shared @@ -277,7 +277,7 @@ write_end: yes, unlocks exclusive bmap: invalidate_folio: yes exclusive release_folio: yes -freepage: yes +free_folio: yes direct_IO: isolate_page: yes migratepage: yes (both) @@ -377,7 +377,7 @@ buffers from the folio in preparation for freeing it. It returns false to indicate that the buffers are (or may be) freeable. If ->release_folio is NULL, the kernel assumes that the fs has no private interest in the buffers. -->freepage() is called when the kernel is done dropping the page +->free_folio() is called when the kernel has dropped the folio from the page cache. ->launder_folio() may be called prior to releasing a folio if |