From: Jan Schmidt <list.btrfs@jan-o-sch.net>
Date: Wed, 4 May 2011 14:18:50 +0000 (+0200)
Subject: Btrfs: fix extent state leak on failed nodatasum reads
X-Git-Tag: v3.0-rc3~9^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08d2f347e877e489ca098c87a6fd2e872fef9767;p=pandora-kernel.git

Btrfs: fix extent state leak on failed nodatasum reads

When encountering an EIO while reading from a nodatasum extent, we
insert an error record into the inode's failure tree.
btrfs_readpage_end_io_hook returns early for nodatasum inodes. We'd
better clear the failure tree in that case, otherwise the kernel
complains about

	BUG extent_state: Objects remaining on kmem_cache_close()

on rmmod.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
---

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