From: NeilBrown <neilb@suse.de>
Date: Thu, 2 Feb 2006 22:28:05 +0000 (-0800)
Subject: [PATCH] md: Don't remove bitmap from md array when switching to read-only
X-Git-Tag: v2.6.16-rc2~1^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=978f946bb628ef228e13aadf4d4255b8727c4fc3;p=pandora-kernel.git

[PATCH] md: Don't remove bitmap from md array when switching to read-only

While a read-only array doesn't not really need a bitmap, we should
not remove the bitmap when switching an array to read-only because
 a/ There is no code to re-add the bitmap which switching to read-write,
 b/ There is insufficient locking - the bitmap could be accessed while it is
    being removed.

Cc: Reuben Farrelly <reuben-lkml@reub.net>
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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