diff options
| -rw-r--r-- | fs/btrfs/inode-map.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index 218df701e607..d4a582ac3f73 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -246,6 +246,7 @@ void btrfs_unpin_free_ino(struct btrfs_root *root) { struct btrfs_free_space_ctl *ctl = root->free_ino_ctl; struct rb_root *rbroot = &root->free_ino_pinned->free_space_offset; + spinlock_t *rbroot_lock = &root->free_ino_pinned->tree_lock; struct btrfs_free_space *info; struct rb_node *n; u64 count; @@ -254,23 +255,29 @@ void btrfs_unpin_free_ino(struct btrfs_root *root) return; while (1) { + bool add_to_ctl = true; + + spin_lock(rbroot_lock); n = rb_first(rbroot); - if (!n) + if (!n) { + spin_unlock(rbroot_lock); break; + } info = rb_entry(n, struct btrfs_free_space, offset_index); BUG_ON(info->bitmap); /* Logic error */ if (info->offset > root->ino_cache_progress) - goto free; + add_to_ctl = false; else if (info->offset + info->bytes > root->ino_cache_progress) count = root->ino_cache_progress - info->offset + 1; else count = info->bytes; - __btrfs_add_free_space(ctl, info->offset, count); -free: rb_erase(&info->offset_index, rbroot); + spin_unlock(rbroot_lock); + if (add_to_ctl) + __btrfs_add_free_space(ctl, info->offset, count); kmem_cache_free(btrfs_free_space_cachep, info); } } |