From: NeilBrown Date: Sun, 8 Jan 2012 14:41:51 +0000 (+1100) Subject: md/raid1: perform bad-block tests for WriteMostly devices too. X-Git-Tag: v3.3-rc1~100^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=307729c8bc5b5a41361af8af95906eee7552acb1;p=pandora-kernel.git md/raid1: perform bad-block tests for WriteMostly devices too. We normally try to avoid reading from write-mostly devices, but when we do we really have to check for bad blocks and be sure not to try reading them. With the current code, best_good_sectors might not get set and that causes zero-length read requests to be send down which is very confusing. This bug was introduced in commit d2eb35acfdccbe2 and so the patch is suitable for 3.1.x and 3.2.x Reported-and-tested-by: Michał Mirosław Reported-and-tested-by: Art -kwaak- van Breemen Signed-off-by: NeilBrown Cc: stable@vger.kernel.org --- Reading git-diff-tree failed