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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-04-30 00:00:05 +0300 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-05-10 06:12:30 +0300 |
| commit | fa29000b6b2603ec2bfdc4c73249fcb00cd54f85 (patch) | |
| tree | 8746e20bb5db7e12c4386098a0b3591c43160575 /Documentation/filesystems/locking.rst | |
| parent | 07950008692bf22074020e927e95655cd48fdcda (diff) | |
| download | linux-fa29000b6b2603ec2bfdc4c73249fcb00cd54f85.tar.xz | |
fs: Add aops->release_folio
This replaces aops->releasepage. Update the documentation, and call it
if it exists.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Diffstat (limited to 'Documentation/filesystems/locking.rst')
| -rw-r--r-- | Documentation/filesystems/locking.rst | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst index aeba2475a53c..ddef4a753e73 100644 --- a/Documentation/filesystems/locking.rst +++ b/Documentation/filesystems/locking.rst @@ -249,7 +249,7 @@ prototypes:: struct page *page, void *fsdata); sector_t (*bmap)(struct address_space *, sector_t); void (*invalidate_folio) (struct folio *, size_t start, size_t len); - int (*releasepage) (struct page *, int); + bool (*release_folio)(struct folio *, gfp_t); void (*freepage)(struct page *); int (*direct_IO)(struct kiocb *, struct iov_iter *iter); bool (*isolate_page) (struct page *, isolate_mode_t); @@ -270,13 +270,13 @@ ops PageLocked(page) i_rwsem invalidate_lock writepage: yes, unlocks (see below) read_folio: yes, unlocks shared writepages: -dirty_folio maybe +dirty_folio: maybe readahead: yes, unlocks shared write_begin: locks the page exclusive write_end: yes, unlocks exclusive bmap: invalidate_folio: yes exclusive -releasepage: yes +release_folio: yes freepage: yes direct_IO: isolate_page: yes @@ -372,10 +372,10 @@ invalidate_lock before invalidating page cache in truncate / hole punch path (and thus calling into ->invalidate_folio) to block races between page cache invalidation and page cache filling functions (fault, read, ...). -->releasepage() is called when the kernel is about to try to drop the -buffers from the page in preparation for freeing it. It returns zero to -indicate that the buffers are (or may be) freeable. If ->releasepage is zero, -the kernel assumes that the fs has no private interest in the buffers. +->release_folio() is called when the kernel is about to try to drop the +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 from the page cache. |