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authorChristoph Hellwig <hch@infradead.org>2010-08-18 05:29:15 -0400
committerJens Axboe <jaxboe@fusionio.com>2010-09-10 12:35:39 +0200
commitf8c131f5b6ffc899a70b30e541f367d47f89691c (patch)
treec1f4bc92dc382b80004b5b63223f16e67219986e /fs/nilfs2/super.c
parent7cd33ad23ec41d685902159be8b2c6552fab8bd0 (diff)
nilfs2: replace barriers with explicit flush / FUA usage
Switch to the WRITE_FLUSH_FUA flag for log writes, remove the EOPNOTSUPP detection for barriers and stop setting the barrier flag for discards. tj: nilfs is now fixed to wait for discard completion. Updated this patch accordingly and dropped warning about it. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'fs/nilfs2/super.c')
-rw-r--r--fs/nilfs2/super.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 922263393c76..faa5078ff751 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -178,17 +178,9 @@ static int nilfs_sync_super(struct nilfs_sb_info *sbi, int flag)
retry:
set_buffer_dirty(nilfs->ns_sbh[0]);
-
if (nilfs_test_opt(sbi, BARRIER)) {
err = __sync_dirty_buffer(nilfs->ns_sbh[0],
- WRITE_SYNC | WRITE_BARRIER);
- if (err == -EOPNOTSUPP) {
- nilfs_warning(sbi->s_super, __func__,
- "barrier-based sync failed. "
- "disabling barriers\n");
- nilfs_clear_opt(sbi, BARRIER);
- goto retry;
- }
+ WRITE_SYNC | WRITE_FLUSH_FUA);
} else {
err = sync_dirty_buffer(nilfs->ns_sbh[0]);
}