From: Liu Bo <bo.li.liu@oracle.com>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH] Btrfs: tolerate errors if we have retried successfully
Date: Thu, 13 Apr 2017 18:11:56 -0700 [thread overview]
Message-ID: <1492132316-3076-1-git-send-email-bo.li.liu@oracle.com> (raw)
With raid1 profile, dio read isn't tolerating IO errors if read length is
less than the stripe length (64K).
This fixes the problem by setting bio's error to 0 if a good copy has been
found.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
---
fs/btrfs/inode.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 632b616..4e1398e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8113,8 +8113,11 @@ static void btrfs_endio_direct_read(struct bio *bio)
struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
int err = bio->bi_error;
- if (dip->flags & BTRFS_DIO_ORIG_BIO_SUBMITTED)
+ if (dip->flags & BTRFS_DIO_ORIG_BIO_SUBMITTED) {
err = btrfs_subio_endio_read(inode, io_bio, err);
+ if (!err)
+ bio->bi_error = 0;
+ }
unlock_extent(&BTRFS_I(inode)->io_tree, dip->logical_offset,
dip->logical_offset + dip->bytes - 1);
--
2.5.5
next reply other threads:[~2017-04-14 1:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-14 1:11 Liu Bo [this message]
2017-05-05 16:52 ` [PATCH] Btrfs: tolerate errors if we have retried successfully David Sterba
2017-05-09 19:40 ` Liu Bo
2017-05-15 15:57 ` David Sterba
2017-05-17 21:42 ` [PATCH v2] " Liu Bo
2017-06-06 13:42 ` David Sterba
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