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os/filestore: require experimental flag for btrfs

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This isn't strictly accurate since we're really deprecating, but the
message is appropriately scary and reflects the risk of data loss.

Signed-off-by: Sage Weil <sage@redhat.com>
This commit is contained in:
Sage Weil 2017-07-03 12:16:53 -04:00
parent 90851832a3
commit fc76fb7510
2 changed files with 20 additions and 0 deletions
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10
doc/release-notes.rst
View File

@ -389,6 +389,16 @@ upgrade to Luminous.
Upgrade compatibility notes, Kraken to Luminous
-----------------------------------------------
* We no longer test the FileStore ceph-osd backend in combination with
``btrfs``. We recommend against using btrfs. If you are using
btrfs-based OSDs and want to upgrade to luminous you will need to
add the follwing to your ceph.conf::
enable experimental unrecoverable data corrupting features = btrfs
The code is mature and unlikely to change, but we are only
continuing to test the Jewel stable branch against btrfs. We
recommend moving these OSDs to FileStore with XFS or BlueStore.
* When assigning a network to the public network and not to
the cluster network the network specification of the public
network will be used for the cluster network as well.

10
src/os/filestore/FileStore.cc
View File

@ -904,6 +904,11 @@ int FileStore::mkfs()
goto close_fsid_fd;
}
if (basefs.f_type == BTRFS_SUPER_MAGIC &&
!g_ceph_context->check_experimental_feature_enabled("btrfs")) {
derr <<__FUNC__ << ": deprecated btrfs support is not enabled" << dendl;
goto close_fsid_fd;
}
create_backend(basefs.f_type);
ret = backend->create_current();
@ -1158,6 +1163,11 @@ int FileStore::_detect_fs()
blk_size = st.f_bsize;
if (st.f_type == BTRFS_SUPER_MAGIC &&
!g_ceph_context->check_experimental_feature_enabled("btrfs")) {
derr <<__FUNC__ << ": deprecated btrfs support is not enabled" << dendl;
return -EPERM;
}
create_backend(st.f_type);
r = backend->detect_features();