From: NeilBrown <neilb@cse.unsw.edu.au>
Date: Wed, 22 Jun 2005 00:17:29 +0000 (-0700)
Subject: [PATCH] md: make sure md/bitmap doesn't try to write a page with active writeback
X-Git-Tag: v2.6.13-rc4~130^2~202^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a5e9cf1d6626586ff08e49f400a006a9f0c3275;p=pandora-kernel.git

[PATCH] md: make sure md/bitmap doesn't try to write a page with active writeback

Due to the use of write-behind, it is possible for md to write a page to
the bitmap file that is still completing writeback.  This is not allowed.

With this patch, we detect those cases and either force a sync write, or
back off and try later, as appropriate.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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