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-rw-r--r--fs/btrfs/ctree.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 7a2a2621f0d9..9019265a2bf9 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1316,6 +1316,12 @@ struct btrfs_root {
* manipulation with the read-only status via SUBVOL_SETFLAGS
*/
int send_in_progress;
+ /*
+ * Number of currently running deduplication operations that have a
+ * destination inode belonging to this root. Protected by the lock
+ * root_item_lock.
+ */
+ int dedupe_in_progress;
struct btrfs_subvolume_writers *subv_writers;
atomic_t will_be_snapshotted;
atomic_t snapshot_force_cow;