From: NeilBrown <neilb@suse.de>
Date: Tue, 3 Jul 2012 05:55:33 +0000 (+1000)
Subject: md/raid10: fix failure when trying to repair a read error.
X-Git-Tag: v3.2.23~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0cc5b5c40fccdbf7b872ae167db30a4aeb413d89;p=pandora-kernel.git

md/raid10: fix failure when trying to repair a read error.

commit 055d3747dbf00ce85c6872ecca4d466638e80c22 upstream.

commit 58c54fcca3bac5bf9290cfed31c76e4c4bfbabaf
     md/raid10: handle further errors during fix_read_error better.

in 3.1 added "r10_sync_page_io" which takes an IO size in sectors.
But we were passing the IO size in bytes!!!
This resulting in bio_add_page failing, and empty request being sent
down, and a consequent BUG_ON in scsi_lib.

[fix missing space in error message at same time]

This fix is suitable for 3.1.y and later.

Reported-by: Christian Balzer <chibi@gol.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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