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author | Ilya Dryomov <idryomov@gmail.com> | 2019-11-05 15:38:46 +0100 |
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committer | Ilya Dryomov <idryomov@gmail.com> | 2019-11-25 11:44:03 +0100 |
commit | 196e2d6d0252d37be385c73f64fc8f5787a52066 (patch) | |
tree | 0af541c1cd7a1dc4fc2f1c2364c993f72e01cb48 /fs/ceph/cache.h | |
parent | fa58bcad90446a8b30bf0d7f3827844bff30ff59 (diff) |
rbd: ask for a weaker incompat mask for read-only mappings
For a read-only mapping, ask for a set of features that make the image
only unwritable rather than both unreadable and unwritable by a client
that doesn't understand them. As of today, the difference between them
for krbd is journaling (JOURNALING) and live migration (MIGRATING).
get_features method supports read_only parameter since hammer, ceph.git
commit 6176ec5fde2a ("librbd: differentiate between R/O vs R/W RBD
features").
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Diffstat (limited to 'fs/ceph/cache.h')
0 files changed, 0 insertions, 0 deletions