diff options
| author | Yan, Zheng <zyan@redhat.com> | 2016-03-30 17:18:34 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2016-05-26 01:15:31 +0200 |
| commit | 235a09821c2bc71d9d07f12217ce2ac00db99eba (patch) | |
| tree | 559215dc0394dc0753ee07ecf5878d0be7d5510c | |
| parent | 737cc81ead34bcef0b1f6ea8322228e4378cf21a (diff) | |
| download | linux-235a09821c2bc71d9d07f12217ce2ac00db99eba.tar.bz2 | |
ceph: multiple filesystem support
To access non-default filesystem, we just need to subscribe to
mdsmap.<MDS_NAMESPACE_ID> and add a new mount option for mds
namespace id.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
[idryomov@gmail.com: switch to a new libceph API]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| -rw-r--r-- | fs/ceph/super.c | 9 | ||||
| -rw-r--r-- | fs/ceph/super.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c index f12d5e2955c2..452770dc9fc1 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -108,6 +108,7 @@ static int ceph_sync_fs(struct super_block *sb, int wait) * mount options */ enum { + Opt_mds_namespace, Opt_wsize, Opt_rsize, Opt_rasize, @@ -143,6 +144,7 @@ enum { }; static match_table_t fsopt_tokens = { + {Opt_mds_namespace, "mds_namespace=%d"}, {Opt_wsize, "wsize=%d"}, {Opt_rsize, "rsize=%d"}, {Opt_rasize, "rasize=%d"}, @@ -212,6 +214,9 @@ static int parse_fsopt_token(char *c, void *private) break; /* misc */ + case Opt_mds_namespace: + fsopt->mds_namespace = intval; + break; case Opt_wsize: fsopt->wsize = intval; break; @@ -367,6 +372,7 @@ static int parse_mount_options(struct ceph_mount_options **pfsopt, fsopt->max_readdir = CEPH_MAX_READDIR_DEFAULT; fsopt->max_readdir_bytes = CEPH_MAX_READDIR_BYTES_DEFAULT; fsopt->congestion_kb = default_congestion_kb(); + fsopt->mds_namespace = CEPH_FS_CLUSTER_ID_NONE; /* * Distinguish the server list from the path in "dev_name". @@ -457,6 +463,8 @@ static int ceph_show_options(struct seq_file *m, struct dentry *root) seq_puts(m, ",noacl"); #endif + if (fsopt->mds_namespace != CEPH_FS_CLUSTER_ID_NONE) + seq_printf(m, ",mds_namespace=%d", fsopt->mds_namespace); if (fsopt->wsize) seq_printf(m, ",wsize=%d", fsopt->wsize); if (fsopt->rsize != CEPH_RSIZE_DEFAULT) @@ -530,6 +538,7 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt, goto fail; } fsc->client->extra_mon_dispatch = extra_mon_dispatch; + fsc->client->monc.fs_cluster_id = fsopt->mds_namespace; ceph_monc_want_map(&fsc->client->monc, CEPH_SUB_MDSMAP, 0, true); fsc->mount_options = fsopt; diff --git a/fs/ceph/super.h b/fs/ceph/super.h index e705c4d612d7..db2200f5ba80 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -62,6 +62,7 @@ struct ceph_mount_options { int cap_release_safety; int max_readdir; /* max readdir result (entires) */ int max_readdir_bytes; /* max readdir result (bytes) */ + int mds_namespace; /* * everything above this point can be memcmp'd; everything below |