Btrfs: Various small fixes.
This trivial patch contains two locking fixes and a off by one fix.
---
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index a2c821e..ebf5362 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -389,9 +389,7 @@
return 0;
}
-int btrfs_add_dead_root(struct btrfs_root *root,
- struct btrfs_root *latest,
- struct list_head *dead_list)
+int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest)
{
struct btrfs_dirty_root *dirty;
@@ -400,7 +398,10 @@
return -ENOMEM;
dirty->root = root;
dirty->latest_root = latest;
- list_add(&dirty->list, dead_list);
+
+ mutex_lock(&root->fs_info->trans_mutex);
+ list_add(&dirty->list, &latest->fs_info->dead_roots);
+ mutex_unlock(&root->fs_info->trans_mutex);
return 0;
}
