From d5929de8337fef46f3e307914ed0f3cb845e66c1 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 27 Feb 2013 13:25:54 +1100 Subject: xfs: don't verify buffers after IO errors When we read a buffer, we might get an error from the underlying block device and not the real data. Hence if we get an IO error, we shouldn't run the verifier but instead just pass the IO error straight through. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers --- fs/xfs/xfs_buf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'fs/xfs/xfs_buf.c') diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 4e8f0df82d02..50eb603e0cc1 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1022,7 +1022,9 @@ xfs_buf_iodone_work( bool read = !!(bp->b_flags & XBF_READ); bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); - if (read && bp->b_ops) + + /* only validate buffers that were read without errors */ + if (read && bp->b_ops && !bp->b_error && (bp->b_flags & XBF_DONE)) bp->b_ops->verify_read(bp); if (bp->b_iodone) -- cgit v1.2.3