From: NeilBrown <neilb@suse.de>
Date: Wed, 9 Nov 2005 05:39:31 +0000 (-0800)
Subject: [PATCH] md: improvements to raid5 handling of read errors
X-Git-Tag: v2.6.15-rc1~90
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba22dcbf106338a5c46d6979f9b19564faae3d49;p=pandora-kernel.git

[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>
---

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