diff options
| author | Alex Elder <elder@inktank.com> | 2012-07-14 03:35:12 +0200 |
|---|---|---|
| committer | Alex Elder <elder@inktank.com> | 2012-10-01 21:30:53 +0200 |
| commit | 34b131849feb359f183907b467e9aa4d652b1baa (patch) | |
| tree | 9b2d05e1eb17949ee642fb7893cd36f3c478d9db /Documentation | |
| parent | rbd: don't use index in __rbd_add_snap_dev() (diff) | |
| download | linux-34b131849feb359f183907b467e9aa4d652b1baa.tar.xz linux-34b131849feb359f183907b467e9aa4d652b1baa.zip | |
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-rbd | 7 |
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 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. |