diff options
| author |   Jens Axboe <axboe@kernel.dk> | 2021-04-29 22:55:21 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-30 11:20:36 -0700 |
| commit | 7a60d6d7b34ebf9290d495e8bb4cd57c784ffb22 (patch) | |
| tree | fb4dbde0a5b777a46baf2041bbd07d30c37b9246 /mm/util.c | |
| parent | mm: provide filemap_range_needs_writeback() helper (diff) | |
| download | linux-rng-7a60d6d7b34ebf9290d495e8bb4cd57c784ffb22.tar.xz linux-rng-7a60d6d7b34ebf9290d495e8bb4cd57c784ffb22.zip | |
mm: use filemap_range_needs_writeback() for O_DIRECT reads
For the generic page cache read helper, use the better variant of checking
for the need to call filemap_write_and_wait_range() when doing O_DIRECT
reads. This avoids falling back to the slow path for IOCB_NOWAIT, if
there are no pages to wait for (or write out).
Link: https://lkml.kernel.org/r/20210224164455.1096727-3-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/util.c')
0 files changed, 0 insertions, 0 deletions