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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 <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
wifi-calibration
Dave Chinner 2013-02-27 13:25:54 +11:00 committed by Ben Myers
parent e8108cedb1
commit d5929de833
1 changed files with 3 additions and 1 deletions
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4
fs/xfs/xfs_buf.c
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@ -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)