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authorNeilBrown <neilb@suse.de>2005-11-09 00:39:31 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-09 10:56:38 -0500
commitba22dcbf106338a5c46d6979f9b19564faae3d49 (patch)
tree4caae4532cda0412d2446eca8b036d4e0df447f8 /drivers/md/md.c
parent007583c9253fed363a0bd71b039e9b40a0f6855e (diff)
[PATCH] md: improvements to raid5 handling of read errors
Two refinements to the 'attempt-overwrite-on-read-error' mechanism. 1/ If the array is read-only, don't attempt an over-write. 2/ If there are more than max_nr_stripes read errors on a device with no success, fail the drive. This will make sure a dead drive will be eventually kicked even when we aren't trying to rewrite (which would normally kick a dead drive more quickly. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r--drivers/md/md.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 3db5c3513072..3fb80397f8aa 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1582,6 +1582,7 @@ static mdk_rdev_t *md_import_device(dev_t newdev, int super_format, int super_mi
1582 rdev->in_sync = 0; 1582 rdev->in_sync = 0;
1583 rdev->data_offset = 0; 1583 rdev->data_offset = 0;
1584 atomic_set(&rdev->nr_pending, 0); 1584 atomic_set(&rdev->nr_pending, 0);
1585 atomic_set(&rdev->read_errors, 0);
1585 1586
1586 size = rdev->bdev->bd_inode->i_size >> BLOCK_SIZE_BITS; 1587 size = rdev->bdev->bd_inode->i_size >> BLOCK_SIZE_BITS;
1587 if (!size) { 1588 if (!size) {