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Btrfs: Force caching of metadata block groups on mount to avoid deadlock
author
Chris Mason
<chris.mason@oracle.com>
Thu, 17 Jul 2008 16:54:48 +0000
(12:54 -0400)
committer
Chris Mason
<chris.mason@oracle.com>
Thu, 25 Sep 2008 15:04:05 +0000
(11:04 -0400)
This is a temporary change to avoid deadlocks until the extent tree locking
is fixed up.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/extent-tree.c
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diff --git
a/fs/btrfs/extent-tree.c
b/fs/btrfs/extent-tree.c
index
4036c62
..
be2aef1
100644
(file)
--- a/
fs/btrfs/extent-tree.c
+++ b/
fs/btrfs/extent-tree.c
@@
-3333,6
+3333,11
@@
int btrfs_read_block_groups(struct btrfs_root *root)
set_state_private(block_group_cache, found_key.objectid,
(unsigned long)cache);
+ /* hack for now */
+ if (cache->flags & BTRFS_BLOCK_GROUP_METADATA) {
+ cache_block_group(root->fs_info->extent_root,
+ cache);
+ }
if (key.objectid >=
btrfs_super_total_bytes(&info->super_copy))
break;