diff options
| author | Jens Axboe <axboe@kernel.dk> | 2018-08-18 01:45:39 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-18 02:20:29 +0300 |
| commit | 5e9d398240b2292b1091f921d29bbab374b755fd (patch) | |
| tree | 49dd1d8ee38b60747b018c9682958b95952a899a | |
| parent | 74c8164e1cdb1eb22f1d49d54e515e81821a8ad0 (diff) | |
| download | linux-5e9d398240b2292b1091f921d29bbab374b755fd.tar.xz | |
btrfs: readpages() should submit IO as read-ahead
a_ops->readpages() is only ever used for read-ahead. Ensure that we
pass this information down to the block layer.
Link: http://lkml.kernel.org/r/20180621010725.17813-4-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Chris Mason <clm@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/btrfs/extent_io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 628f1aef34b0..4dd6faab02bb 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3102,7 +3102,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree, for (index = 0; index < nr_pages; index++) { __do_readpage(tree, pages[index], btrfs_get_extent, em_cached, - bio, 0, bio_flags, 0, prev_em_start); + bio, 0, bio_flags, REQ_RAHEAD, prev_em_start); put_page(pages[index]); } } |