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| author |   Jeff Layton <jlayton@kernel.org> | 2019-11-15 11:51:55 -0500 |
|---|---|---|
| committer |   Ilya Dryomov <idryomov@gmail.com> | 2020-03-30 12:42:42 +0200 |
| commit | d4846487870897a5a149a3220c95bfd5728f9247 (patch) | |
| tree | 22bbf1f79a8a12dc66e5e4044c8b733299029c80 /fs/ceph/mds_client.h | |
| parent | ceph: make ceph_fill_inode non-static (diff) | |
| download | wireguard-linux-d4846487870897a5a149a3220c95bfd5728f9247.tar.xz wireguard-linux-d4846487870897a5a149a3220c95bfd5728f9247.zip | |
ceph: decode interval_sets for delegated inos
Starting in Octopus, the MDS will hand out caps that allow the client
to do asynchronous file creates under certain conditions. As part of
that, the MDS will delegate ranges of inode numbers to the client.
Add the infrastructure to decode these ranges, and stuff them into an
xarray for later consumption by the async creation code.
Because the xarray code currently only handles unsigned long indexes,
and those are 32-bits on 32-bit arches, we only enable the decoding when
running on a 64-bit arch.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/mds_client.h')
| -rw-r--r-- | fs/ceph/mds_client.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index f10d342ea585..4c3b71707470 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -23,8 +23,9 @@ enum ceph_feature_type { CEPHFS_FEATURE_RECLAIM_CLIENT, CEPHFS_FEATURE_LAZY_CAP_WANTED, CEPHFS_FEATURE_MULTI_RECONNECT, + CEPHFS_FEATURE_DELEG_INO, - CEPHFS_FEATURE_MAX = CEPHFS_FEATURE_MULTI_RECONNECT, + CEPHFS_FEATURE_MAX = CEPHFS_FEATURE_DELEG_INO, }; /* @@ -37,6 +38,7 @@ enum ceph_feature_type { CEPHFS_FEATURE_REPLY_ENCODING, \ CEPHFS_FEATURE_LAZY_CAP_WANTED, \ CEPHFS_FEATURE_MULTI_RECONNECT, \ + CEPHFS_FEATURE_DELEG_INO, \ \ CEPHFS_FEATURE_MAX, \ } @@ -201,6 +203,7 @@ struct ceph_mds_session { struct list_head s_waiting; /* waiting requests */ struct list_head s_unsafe; /* unsafe requests */ + struct xarray s_delegated_inos; }; /* @@ -542,6 +545,7 @@ extern void ceph_mdsc_open_export_target_sessions(struct ceph_mds_client *mdsc, extern int ceph_trim_caps(struct ceph_mds_client *mdsc, struct ceph_mds_session *session, int max_caps); + static inline int ceph_wait_on_async_create(struct inode *inode) { struct ceph_inode_info *ci = ceph_inode(inode); @@ -549,4 +553,7 @@ static inline int ceph_wait_on_async_create(struct inode *inode) return wait_on_bit(&ci->i_ceph_flags, CEPH_ASYNC_CREATE_BIT, TASK_INTERRUPTIBLE); } + +extern u64 ceph_get_deleg_ino(struct ceph_mds_session *session); +extern int ceph_restore_deleg_ino(struct ceph_mds_session *session, u64 ino); #endif |