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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-08 06:38:18 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-08 06:38:18 +0900
commit7035cdf36d5c4d913f68ff97e1c2e5603500d946 (patch)
treeeee5680c16771cb23bc6d3a47bc7b6f350171b22 /Documentation
parent6432f2128414edbea5fd4f6c4fa4c28d0e1c6151 (diff)
parent6285bc231277419255f3498d3eb5ddc9f8e7fe79 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull ceph updates from Sage Weil: "The bulk of this pull is a series from Alex that refactors and cleans up the RBD code to lay the groundwork for supporting the new image format and evolving feature set. There are also some cleanups in libceph, and for ceph there's fixed validation of file striping layouts and a bugfix in the code handling a shrinking MDS cluster." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (71 commits) ceph: avoid 32-bit page index overflow ceph: return EIO on invalid layout on GET_DATALOC ioctl rbd: BUG on invalid layout ceph: propagate layout error on osd request creation libceph: check for invalid mapping ceph: convert to use le32_add_cpu() ceph: Fix oops when handling mdsmap that decreases max_mds rbd: update remaining header fields for v2 rbd: get snapshot name for a v2 image rbd: get the snapshot context for a v2 image rbd: get image features for a v2 image rbd: get the object prefix for a v2 rbd image rbd: add code to get the size of a v2 rbd image rbd: lay out header probe infrastructure rbd: encapsulate code that gets snapshot info rbd: add an rbd features field rbd: don't use index in __rbd_add_snap_dev() rbd: kill create_snap sysfs entry rbd: define rbd_dev_image_id() rbd: define some new format constants ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-rbd18
1 files changed, 12 insertions, 6 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd
index 3c17b62899f..1cf2adf46b1 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.
@@ -33,6 +37,11 @@ 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 name of the storage pool where this rbd image resides.
@@ -57,12 +66,6 @@ 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
@@ -79,4 +82,7 @@ snap_size
The size of the image when this snapshot was taken.
+snap_features
+
+ A hexadecimal encoding of the feature bits for this snapshot.