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-rw-r--r--Documentation/btrfs-subvolume.txt11
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/btrfs-subvolume.txt b/Documentation/btrfs-subvolume.txt
index 231f487f..1360aba8 100644
--- a/Documentation/btrfs-subvolume.txt
+++ b/Documentation/btrfs-subvolume.txt
@@ -153,6 +153,17 @@ List the recently modified files in a subvolume, after <last_gen> ID.
*show* <path>::
Show information of a given subvolume in the <path>.
+*sync* <path> [subvolid...]::
+Wait until given subvolume(s) are completely removed from the filesystem
+after deletion. If no subvolume id is given, wait until all ongoing deletion
+requests are complete. This may take long if new deleted subvolumes appear
+during the sleep interval.
++
+`Options`
++
+-s <N>::::
+sleep N seconds between checks (default: 1)
+
EXIT STATUS
-----------
*btrfs subvolume* returns a zero exit status if it succeeds. Non zero is