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authorAlex Elder <elder@inktank.com>2012-07-13 20:35:12 -0500
committerAlex Elder <elder@inktank.com>2012-10-01 14:30:53 -0500
commit34b131849feb359f183907b467e9aa4d652b1baa (patch)
tree9b2d05e1eb17949ee642fb7893cd36f3c478d9db /Documentation
parentc8d184250d8a47b1a958affcffe3ffdd85644301 (diff)
downloadop-kernel-dev-34b131849feb359f183907b467e9aa4d652b1baa.zip
op-kernel-dev-34b131849feb359f183907b467e9aa4d652b1baa.tar.gz
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 6fe4224..1cf2adf 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.
@@ -78,4 +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.
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