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Btrfs: fix extent state leak on failed nodatasum reads

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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>
This commit is contained in:
Jan Schmidt 2011-05-04 16:18:50 +02:00 committed by Chris Mason
parent 0e735872fb
commit 08d2f347e8
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/inode.c
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@ -1986,7 +1986,7 @@ static int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end,
}
if (BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)
return 0;
goto good;
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID &&
test_range_bit(io_tree, start, end, EXTENT_NODATASUM, 1, NULL)) {