From: Bob Liu <bob.liu@oracle.com>
To: linux-block@vger.kernel.org
Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
martin.petersen@oracle.com, shirley.ma@oracle.com,
allison.henderson@oracle.com, david@fromorbit.com,
darrick.wong@oracle.com, hch@infradead.org, adilger@dilger.ca
Subject: [RFC PATCH v2 8/9] xfs: Rewrite retried read
Date: Wed, 13 Feb 2019 17:50:43 +0800 [thread overview]
Message-ID: <20190213095044.29628-9-bob.liu@oracle.com> (raw)
In-Reply-To: <20190213095044.29628-1-bob.liu@oracle.com>
From: Allison Henderson <allison.henderson@oracle.com>
If we had to try more than one mirror to get a successful
read, then write that buffer back to correct the bad mirror
Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
---
fs/xfs/xfs_buf.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 2c250221cb78..e54dbc776d15 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -861,6 +861,14 @@ xfs_buf_read_map(
}
retry_done:
+
+ /*
+ * if we had to try more than one mirror to sucessfully read
+ * the buffer, write the buffer back
+ */
+ if (!bp->b_error && i > 0)
+ xfs_bwrite(bp);
+
return bp;
}
--
2.17.1
next prev parent reply other threads:[~2019-02-13 9:53 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-13 9:50 [RFC PATCH v2 0/9] Block/XFS: Support alternative mirror device retry Bob Liu
2019-02-13 9:50 ` [RFC PATCH v2 1/9] block: add nr_mirrors to request_queue Bob Liu
2019-02-13 10:26 ` Andreas Dilger
2019-02-13 16:04 ` Theodore Y. Ts'o
2019-02-14 5:57 ` Bob Liu
2019-02-18 17:56 ` Theodore Y. Ts'o
2019-02-13 9:50 ` [RFC PATCH v2 2/9] block: add rd_hint to bio and request Bob Liu
2019-02-13 16:18 ` Jens Axboe
2019-02-14 6:10 ` Bob Liu
2019-02-13 9:50 ` [RFC PATCH v2 3/9] md:raid1: set mirrors correctly Bob Liu
2019-02-13 9:50 ` [RFC PATCH v2 4/9] md:raid1: rd_hint support and consider stacked layer case Bob Liu
2019-02-13 9:50 ` [RFC PATCH v2 5/9] Add b_alt_retry to xfs_buf Bob Liu
2019-02-13 9:50 ` [RFC PATCH v2 6/9] xfs: Add b_rd_hint " Bob Liu
2019-02-13 9:50 ` [RFC PATCH v2 7/9] xfs: Add device retry Bob Liu
2019-02-13 9:50 ` Bob Liu [this message]
2019-02-13 9:50 ` [RFC PATCH v2 9/9] xfs: Add tracepoints and logging to alternate " Bob Liu
2019-02-18 8:08 ` [RFC PATCH v2 0/9] Block/XFS: Support alternative mirror " jianchao.wang
2019-02-19 1:29 ` jianchao.wang
2019-02-18 21:31 ` Dave Chinner
2019-02-19 2:55 ` Darrick J. Wong
2019-02-19 3:33 ` Dave Chinner
2019-02-28 14:22 ` Bob Liu
2019-02-28 21:49 ` Dave Chinner
2019-03-03 2:37 ` Bob Liu
2019-03-03 23:18 ` Dave Chinner
2019-02-28 23:28 ` Andreas Dilger
2019-03-01 14:14 ` Bob Liu
2019-03-03 23:45 ` Dave Chinner
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