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-rw-r--r--Documentation/ABI/testing/sysfs-bus-rbd32
1 files changed, 24 insertions, 8 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd
index bcd88eb7ebc..cd9213ccf3d 100644
--- a/Documentation/ABI/testing/sysfs-bus-rbd
+++ b/Documentation/ABI/testing/sysfs-bus-rbd
@@ -25,6 +25,10 @@ client_id
The ceph unique client id that was assigned for this specific session.
+features
+
+ A hexadecimal encoding of the feature bits for this image.
+
major
The block device major number.
@@ -33,10 +37,21 @@ name
The name of the rbd image.
+image_id
+
+ The unique id for the rbd image. (For rbd image format 1
+ this is empty.)
+
pool
- The pool where this rbd image resides. The pool-name pair is unique
- per rados system.
+ The name of the storage pool where this rbd image resides.
+ An rbd image name is unique within its pool.
+
+pool_id
+
+ The unique identifier for the rbd image's pool. This is
+ a permanent attribute of the pool. A pool's id will never
+ change.
size
@@ -51,16 +66,14 @@ current_snap
The current snapshot for which the device is mapped.
-create_snap
-
- Create a snapshot:
-
- $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_create
-
snap_*
A directory per each snapshot
+parent
+
+ Information identifying the pool, image, and snapshot id for
+ the parent image in a layered rbd image (format 2 only).
Entries under /sys/bus/rbd/devices/<dev-id>/snap_<snap-name>
-------------------------------------------------------------
@@ -73,4 +86,7 @@ snap_size
The size of the image when this snapshot was taken.
+snap_features
+
+ A hexadecimal encoding of the feature bits for this snapshot.