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| author |   Jens Axboe <axboe@kernel.dk> | 2021-04-29 22:55:24 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-30 11:20:36 -0700 |
| commit | 985b71db17506c668e5a9bd9fc700c95640dc191 (patch) | |
| tree | d0aeec86c88f02b08c6b3f8d8d37db5fd30f313e /mm/util.c | |
| parent | mm: use filemap_range_needs_writeback() for O_DIRECT reads (diff) | |
| download | linux-rng-985b71db17506c668e5a9bd9fc700c95640dc191.tar.xz linux-rng-985b71db17506c668e5a9bd9fc700c95640dc191.zip | |
iomap: use filemap_range_needs_writeback() for O_DIRECT reads
For reads, use the better variant of checking for the need to call
filemap_write_and_wait_range() when doing O_DIRECT. 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/20210224164455.1096727-4-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
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