diff options
| author | Luís Henriques <lhenriques@suse.de> | 2022-05-24 19:06:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 12:45:23 +0300 |
| commit | 52f636e1904cda95cba094cf5e72f11ef4e96196 (patch) | |
| tree | 9e173fdc6a0c20d41d15b799379a774b93dd339d /fs/ceph/mds_client.h | |
| parent | c969b0537daca25f1e9a69b00caae6c3aca01a17 (diff) | |
| download | linux-52f636e1904cda95cba094cf5e72f11ef4e96196.tar.xz | |
ceph: use correct index when encoding client supported features
commit fea013e020e6ecc7be75bea0d61697b7e916b44d upstream.
Feature bits have to be encoded into the correct locations. This hasn't
been an issue so far because the only hole in the feature bits was in bit
10 (CEPHFS_FEATURE_RECLAIM_CLIENT), which is located in the 2nd byte. When
adding more bits that go beyond the this 2nd byte, the bug will show up.
[xiubli: remove incorrect comment for CEPHFS_FEATURES_CLIENT_SUPPORTED]
Fixes: 9ba1e224538a ("ceph: allocate the correct amount of extra bytes for the session features")
Signed-off-by: Luís Henriques <lhenriques@suse.de>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ceph/mds_client.h')
| -rw-r--r-- | fs/ceph/mds_client.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index 1140aecd82ce..2a49e331987b 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -33,10 +33,6 @@ enum ceph_feature_type { CEPHFS_FEATURE_MAX = CEPHFS_FEATURE_METRIC_COLLECT, }; -/* - * This will always have the highest feature bit value - * as the last element of the array. - */ #define CEPHFS_FEATURES_CLIENT_SUPPORTED { \ 0, 1, 2, 3, 4, 5, 6, 7, \ CEPHFS_FEATURE_MIMIC, \ @@ -45,8 +41,6 @@ enum ceph_feature_type { CEPHFS_FEATURE_MULTI_RECONNECT, \ CEPHFS_FEATURE_DELEG_INO, \ CEPHFS_FEATURE_METRIC_COLLECT, \ - \ - CEPHFS_FEATURE_MAX, \ } #define CEPHFS_FEATURES_CLIENT_REQUIRED {} |