diff options
Diffstat (limited to 'drivers/md/bcache/request.c')
| -rw-r--r-- | drivers/md/bcache/request.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index 681b4f12b05a..9ee137e8d387 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -384,6 +384,14 @@ static bool check_should_bypass(struct cached_dev *dc, struct bio *bio) op_is_write(bio_op(bio)))) goto skip; + /* + * Flag for bypass if the IO is for read-ahead or background, + * unless the read-ahead request is for metadata (eg, for gfs2). + */ + if (bio->bi_opf & (REQ_RAHEAD|REQ_BACKGROUND) && + !(bio->bi_opf & REQ_META)) + goto skip; + if (bio->bi_iter.bi_sector & (c->sb.block_size - 1) || bio_sectors(bio) & (c->sb.block_size - 1)) { pr_debug("skipping unaligned io"); |