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| author | Eric Paris | 2010-02-23 20:43:04 +0100 |
|---|---|---|
| committer | Chris Mason | 2010-03-08 22:26:50 +0100 |
| commit | 6bef4d317193d3badbbfa3f3c593758ace84a629 (patch) | |
| tree | 8aa9fcf3297c69033b9a9a83a27ecccaab0f9d7d /fs/btrfs/relocation.c | |
| parent | Btrfs: btrfs_mark_extent_written uses the wrong slot (diff) | |
| download | kernel-qcow2-linux-6bef4d317193d3badbbfa3f3c593758ace84a629.tar.gz kernel-qcow2-linux-6bef4d317193d3badbbfa3f3c593758ace84a629.tar.xz kernel-qcow2-linux-6bef4d317193d3badbbfa3f3c593758ace84a629.zip | |
Btrfs: use RB_ROOT to intialize rb_trees instead of setting rb_node to NULL
btrfs inialize rb trees in quite a number of places by settin rb_node =
NULL; The problem with this is that 17d9ddc72fb8bba0d4f678 in the
linux-next tree adds a new field to that struct which needs to be NULL for
the new rbtree library code to work properly. This patch uses RB_ROOT as
the intializer so all of the relevant fields will be NULL'd. Without the
patch I get a panic.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/relocation.c')
| -rw-r--r-- | fs/btrfs/relocation.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index ab7ab5318745..0109e5606bad 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -170,14 +170,14 @@ struct async_merge { static void mapping_tree_init(struct mapping_tree *tree) { - tree->rb_root.rb_node = NULL; + tree->rb_root = RB_ROOT; spin_lock_init(&tree->lock); } static void backref_cache_init(struct backref_cache *cache) { int i; - cache->rb_root.rb_node = NULL; + cache->rb_root = RB_ROOT; for (i = 0; i < BTRFS_MAX_LEVEL; i++) INIT_LIST_HEAD(&cache->pending[i]); spin_lock_init(&cache->lock); |