diff options
Diffstat (limited to 'fs/btrfs/ordered-data.c')
| -rw-r--r-- | fs/btrfs/ordered-data.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 0de7da5a610d..559170464d7c 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -661,14 +661,15 @@ static void btrfs_run_ordered_extent_work(struct btrfs_work *work) * wait for all the ordered extents in a root. This is done when balancing * space between drives. */ -int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr) +int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr, + const u64 range_start, const u64 range_len) { - struct list_head splice, works; + LIST_HEAD(splice); + LIST_HEAD(skipped); + LIST_HEAD(works); struct btrfs_ordered_extent *ordered, *next; int count = 0; - - INIT_LIST_HEAD(&splice); - INIT_LIST_HEAD(&works); + const u64 range_end = range_start + range_len; mutex_lock(&root->ordered_extent_mutex); spin_lock(&root->ordered_extent_lock); @@ -676,6 +677,14 @@ int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr) while (!list_empty(&splice) && nr) { ordered = list_first_entry(&splice, struct btrfs_ordered_extent, root_extent_list); + + if (range_end <= ordered->start || + ordered->start + ordered->disk_len <= range_start) { + list_move_tail(&ordered->root_extent_list, &skipped); + cond_resched_lock(&root->ordered_extent_lock); + continue; + } + list_move_tail(&ordered->root_extent_list, &root->ordered_extents); atomic_inc(&ordered->refs); @@ -694,6 +703,7 @@ int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr) nr--; count++; } + list_splice_tail(&skipped, &root->ordered_extents); list_splice_tail(&splice, &root->ordered_extents); spin_unlock(&root->ordered_extent_lock); @@ -708,7 +718,8 @@ int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr) return count; } -void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr) +void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr, + const u64 range_start, const u64 range_len) { struct btrfs_root *root; struct list_head splice; @@ -728,7 +739,8 @@ void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr) &fs_info->ordered_roots); spin_unlock(&fs_info->ordered_root_lock); - done = btrfs_wait_ordered_extents(root, nr); + done = btrfs_wait_ordered_extents(root, nr, + range_start, range_len); btrfs_put_fs_root(root); spin_lock(&fs_info->ordered_root_lock); |