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authorAlex Elder <elder@inktank.com>2012-07-13 21:35:12 -0400
committerAlex Elder <elder@inktank.com>2012-10-01 15:30:53 -0400
commit34b131849feb359f183907b467e9aa4d652b1baa (patch)
tree9b2d05e1eb17949ee642fb7893cd36f3c478d9db /Documentation
parentc8d184250d8a47b1a958affcffe3ffdd85644301 (diff)
rbd: add an rbd features field
Record the features values for each rbd image and each of its snapshots. This is really something that only becomes meaningful for version 2 images, so this is just putting in place code that will form common infrastructure. It may be useful to expand the sysfs entries--and therefore the information we maintain--for the image and for each snapshot. But I'm going to hold off doing that until we start making active use of the feature bits. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-rbd7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd
index 6fe4224cc5bd..1cf2adf46b11 100644
--- a/Documentation/ABI/testing/sysfs-bus-rbd
+++ b/Documentation/ABI/testing/sysfs-bus-rbd
@@ -25,6 +25,10 @@ client_id
25 25
26 The ceph unique client id that was assigned for this specific session. 26 The ceph unique client id that was assigned for this specific session.
27 27
28features
29
30 A hexadecimal encoding of the feature bits for this image.
31
28major 32major
29 33
30 The block device major number. 34 The block device major number.
@@ -78,4 +82,7 @@ snap_size
78 82
79 The size of the image when this snapshot was taken. 83 The size of the image when this snapshot was taken.
80 84
85snap_features
86
87 A hexadecimal encoding of the feature bits for this snapshot.
81 88