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| author | Alex Elder <elder@inktank.com> | 2012-10-25 23:34:42 -0500 |
|---|---|---|
| committer | Alex Elder <elder@inktank.com> | 2012-11-01 07:55:42 -0500 |
| commit | 86b00e0da6be7bbc16412f126c5b548ac5d91d50 (patch) | |
| tree | 466c0dcecd75ca707f33b18265be969e385f366c /Documentation | |
| parent | a92ffdf8a9b09f8fae9a8f418f87f30a5e459570 (diff) | |
| download | linux-86b00e0da6be7bbc16412f126c5b548ac5d91d50.tar.gz linux-86b00e0da6be7bbc16412f126c5b548ac5d91d50.tar.bz2 linux-86b00e0da6be7bbc16412f126c5b548ac5d91d50.zip | |
rbd: get parent spec for version 2 images
Add support for getting the the information identifying the parent
image for rbd images that have them. The child image holds a
reference to its parent image specification structure. Create a new
entry "parent" in /sys/bus/rbd/image/N/ to report the identifying
information for the parent image, if any.
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 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd index 1cf2adf46b11..cd9213ccf3dc 100644 --- a/Documentation/ABI/testing/sysfs-bus-rbd +++ b/Documentation/ABI/testing/sysfs-bus-rbd @@ -70,6 +70,10 @@ 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> ------------------------------------------------------------- |