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authorChristoph Hellwig <hch@lst.de>2015-04-24 22:41:01 +0300
committerJens Axboe <axboe@fb.com>2015-05-19 18:17:03 +0300
commitb25de9d6da49b1a8760a89672283128aa8c78345 (patch)
tree446d9186aebfbdb2156e438b6c85d84d44dd51a2 /fs/nilfs2
parent4ecd4fef3a074c8bb43c391a57742c422469ebbd (diff)
downloadlinux-b25de9d6da49b1a8760a89672283128aa8c78345.tar.xz
block: remove BIO_EOPNOTSUPP
Since the big barrier rewrite/removal in 2007 we never fail FLUSH or FUA requests, which means we can remove the magic BIO_EOPNOTSUPP flag to help propagating those to the buffer_head layer. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r--fs/nilfs2/segbuf.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index dc3a9efdaab8..42468e5ab3e7 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -343,11 +343,6 @@ static void nilfs_end_bio_write(struct bio *bio, int err)
const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
struct nilfs_segment_buffer *segbuf = bio->bi_private;
- if (err == -EOPNOTSUPP) {
- set_bit(BIO_EOPNOTSUPP, &bio->bi_flags);
- /* to be detected by nilfs_segbuf_submit_bio() */
- }
-
if (!uptodate)
atomic_inc(&segbuf->sb_err);
@@ -374,15 +369,8 @@ static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf,
bio->bi_end_io = nilfs_end_bio_write;
bio->bi_private = segbuf;
- bio_get(bio);
submit_bio(mode, bio);
segbuf->sb_nbio++;
- if (bio_flagged(bio, BIO_EOPNOTSUPP)) {
- bio_put(bio);
- err = -EOPNOTSUPP;
- goto failed;
- }
- bio_put(bio);
wi->bio = NULL;
wi->rest_blocks -= wi->end - wi->start;