diff options
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index c44aa9680789..9454045f091a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -7136,6 +7136,7 @@ int btrfs_can_relocate(struct btrfs_root *root, u64 bytenr) u64 min_free; u64 dev_min = 1; u64 dev_nr = 0; + u64 target; int index; int full = 0; int ret = 0; @@ -7176,13 +7177,11 @@ int btrfs_can_relocate(struct btrfs_root *root, u64 bytenr) /* * ok we don't have enough space, but maybe we have free space on our * devices to allocate new chunks for relocation, so loop through our - * alloc devices and guess if we have enough space. However, if we - * were marked as full, then we know there aren't enough chunks, and we - * can just return. + * alloc devices and guess if we have enough space. if this block + * group is going to be restriped, run checks against the target + * profile instead of the current one. */ ret = -1; - if (full) - goto out; /* * index: @@ -7192,7 +7191,20 @@ int btrfs_can_relocate(struct btrfs_root *root, u64 bytenr) * 3: raid0 * 4: single */ - index = get_block_group_index(block_group); + target = get_restripe_target(root->fs_info, block_group->flags); + if (target) { + index = __get_block_group_index(extended_to_chunk(target)); + } else { + /* + * this is just a balance, so if we were marked as full + * we know there is no space for a new chunk + */ + if (full) + goto out; + + index = get_block_group_index(block_group); + } + if (index == 0) { dev_min = 4; /* Divide by 2 */ |