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Diffstat (limited to 'fs/btrfs/ordered-data.c')
-rw-r--r--fs/btrfs/ordered-data.c26
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);