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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-02-09 20:21:27 +0000 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-03-14 15:43:17 -0400 |
| commit | 2e7e80f7e7e9dbbb3c2a85ee923ca32826052816 (patch) | |
| tree | 3729ba6cd85d249ea19ba92b7020fbb6436b3b20 /Documentation/filesystems/vfs.rst | |
| parent | cd1067beeebfe23fc8cab071790fefb273962d51 (diff) | |
| download | linux-2e7e80f7e7e9dbbb3c2a85ee923ca32826052816.tar.gz linux-2e7e80f7e7e9dbbb3c2a85ee923ca32826052816.tar.bz2 linux-2e7e80f7e7e9dbbb3c2a85ee923ca32826052816.zip | |
fs: Convert is_partially_uptodate to folios
Since the uptodate property is maintained on a per-folio basis, the
is_partially_uptodate method should also take a folio. Fix the types
at the same time so it's clear that it returns true/false and takes
the count in bytes, not blocks.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs
Tested-by: David Howells <dhowells@redhat.com> # afs
Diffstat (limited to 'Documentation/filesystems/vfs.rst')
| -rw-r--r-- | Documentation/filesystems/vfs.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/filesystems/vfs.rst b/Documentation/filesystems/vfs.rst index bf5c48066fac..da3e7b470f0a 100644 --- a/Documentation/filesystems/vfs.rst +++ b/Documentation/filesystems/vfs.rst @@ -747,8 +747,8 @@ cache in your filesystem. The following members are defined: void (*putback_page) (struct page *); int (*launder_page) (struct page *); - int (*is_partially_uptodate) (struct page *, unsigned long, - unsigned long); + bool (*is_partially_uptodate) (struct folio *, size_t from, + size_t count); void (*is_dirty_writeback) (struct page *, bool *, bool *); int (*error_remove_page) (struct mapping *mapping, struct page *page); int (*swap_activate)(struct file *); @@ -937,9 +937,9 @@ cache in your filesystem. The following members are defined: ``is_partially_uptodate`` Called by the VM when reading a file through the pagecache when - the underlying blocksize != pagesize. If the required block is - up to date then the read can complete without needing the IO to - bring the whole page up to date. + the underlying blocksize is smaller than the size of the folio. + If the required block is up to date then the read can complete + without needing I/O to bring the whole page up to date. ``is_dirty_writeback`` Called by the VM when attempting to reclaim a page. The VM uses |