diff options
| -rw-r--r-- | fs/nfs/nfs4_fs.h | 6 | ||||
| -rw-r--r-- | fs/nfs/nfs4client.c | 101 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 6 | ||||
| -rw-r--r-- | include/linux/nfs_fs_sb.h | 3 |
4 files changed, 89 insertions, 27 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 8de9b934dcac..af2d5bf043f0 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -38,6 +38,8 @@ struct nfs4_minor_version_ops { u32 minor_version; unsigned init_caps; + int (*init_client)(struct nfs_client *); + void (*shutdown_client)(struct nfs_client *); bool (*match_stateid)(const nfs4_stateid *, const nfs4_stateid *); int (*find_root_sec)(struct nfs_server *, struct nfs_fh *, @@ -292,6 +294,10 @@ extern const u32 nfs4_pathconf_bitmap[3]; extern const u32 nfs4_fsinfo_bitmap[3]; extern const u32 nfs4_fs_locations_bitmap[3]; +void nfs40_shutdown_client(struct nfs_client *); +void nfs41_shutdown_client(struct nfs_client *); +int nfs40_init_client(struct nfs_client *); +int nfs41_init_client(struct nfs_client *); void nfs4_free_client(struct nfs_client *); struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *); diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 767a5e37fe97..98c0104bb0c4 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -41,7 +41,7 @@ static int nfs_get_cb_ident_idr(struct nfs_client *clp, int minorversion) } #ifdef CONFIG_NFS_V4_1 -static void nfs4_shutdown_session(struct nfs_client *clp) +void nfs41_shutdown_client(struct nfs_client *clp) { if (nfs4_has_session(clp)) { nfs4_destroy_session(clp->cl_session); @@ -49,11 +49,15 @@ static void nfs4_shutdown_session(struct nfs_client *clp) } } -#else /* CONFIG_NFS_V4_1 */ -static void nfs4_shutdown_session(struct nfs_client *clp) +#endif /* CONFIG_NFS_V4_1 */ + +void nfs40_shutdown_client(struct nfs_client *clp) { + if (clp->cl_slot_tbl) { + nfs4_release_slot_table(clp->cl_slot_tbl); + kfree(clp->cl_slot_tbl); + } } -#endif /* CONFIG_NFS_V4_1 */ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init) { @@ -97,7 +101,7 @@ static void nfs4_shutdown_client(struct nfs_client *clp) { if (__test_and_clear_bit(NFS_CS_RENEWD, &clp->cl_res_state)) nfs4_kill_renewd(clp); - nfs4_shutdown_session(clp); + clp->cl_mvops->shutdown_client(clp); nfs4_destroy_callback(clp); if (__test_and_clear_bit(NFS_CS_IDMAP, &clp->cl_res_state)) nfs_idmap_delete(clp); @@ -144,34 +148,77 @@ static int nfs4_init_callback(struct nfs_client *clp) return 0; } +/** + * nfs40_init_client - nfs_client initialization tasks for NFSv4.0 + * @clp - nfs_client to initialize + * + * Returns zero on success, or a negative errno if some error occurred. + */ +int nfs40_init_client(struct nfs_client *clp) +{ + struct nfs4_slot_table *tbl; + int ret; + + tbl = kzalloc(sizeof(*tbl), GFP_NOFS); + if (tbl == NULL) + return -ENOMEM; + + ret = nfs4_setup_slot_table(tbl, NFS4_MAX_SLOT_TABLE, + "NFSv4.0 transport Slot table"); + if (ret) { + kfree(tbl); + return ret; + } + + clp->cl_slot_tbl = tbl; + return 0; +} + +#if defined(CONFIG_NFS_V4_1) + +/** + * nfs41_init_client - nfs_client initialization tasks for NFSv4.1+ + * @clp - nfs_client to initialize + * + * Returns zero on success, or a negative errno if some error occurred. + */ +int nfs41_init_client(struct nfs_client *clp) +{ + struct nfs4_session *session = NULL; + + /* + * Create the session and mark it expired. + * When a SEQUENCE operation encounters the expired session + * it will do session recovery to initialize it. + */ + session = nfs4_alloc_session(clp); + if (!session) + return -ENOMEM; + + clp->cl_session = session; + + /* + * The create session reply races with the server back + * channel probe. Mark the client NFS_CS_SESSION_INITING + * so that the client back channel can find the + * nfs_client struct + */ + nfs_mark_client_ready(clp, NFS_CS_SESSION_INITING); + return 0; +} + +#endif /* CONFIG_NFS_V4_1 */ + /* * Initialize the minor version specific parts of an NFS4 client record */ static int nfs4_init_client_minor_version(struct nfs_client *clp) { -#if defined(CONFIG_NFS_V4_1) - if (clp->cl_mvops->minor_version) { - struct nfs4_session *session = NULL; - /* - * Create the session and mark it expired. - * When a SEQUENCE operation encounters the expired session - * it will do session recovery to initialize it. - */ - session = nfs4_alloc_session(clp); - if (!session) - return -ENOMEM; - - clp->cl_session = session; - /* - * The create session reply races with the server back - * channel probe. Mark the client NFS_CS_SESSION_INITING - * so that the client back channel can find the - * nfs_client struct - */ - nfs_mark_client_ready(clp, NFS_CS_SESSION_INITING); - } -#endif /* CONFIG_NFS_V4_1 */ + int ret; + ret = clp->cl_mvops->init_client(clp); + if (ret) + return ret; return nfs4_init_callback(clp); } diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 3abd32caec2f..3b5166c20962 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -7533,6 +7533,8 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = { | NFS_CAP_ATOMIC_OPEN | NFS_CAP_CHANGE_ATTR | NFS_CAP_POSIX_LOCK, + .init_client = nfs40_init_client, + .shutdown_client = nfs40_shutdown_client, .match_stateid = nfs4_match_stateid, .find_root_sec = nfs4_find_root_sec, .free_lock_state = nfs4_release_lockowner, @@ -7551,6 +7553,8 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = { | NFS_CAP_POSIX_LOCK | NFS_CAP_STATEID_NFSV41 | NFS_CAP_ATOMIC_OPEN_V1, + .init_client = nfs41_init_client, + .shutdown_client = nfs41_shutdown_client, .match_stateid = nfs41_match_stateid, .find_root_sec = nfs41_find_root_sec, .free_lock_state = nfs41_free_lock_state, @@ -7570,6 +7574,8 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = { | NFS_CAP_POSIX_LOCK | NFS_CAP_STATEID_NFSV41 | NFS_CAP_ATOMIC_OPEN_V1, + .init_client = nfs41_init_client, + .shutdown_client = nfs41_shutdown_client, .match_stateid = nfs41_match_stateid, .find_root_sec = nfs41_find_root_sec, .free_lock_state = nfs41_free_lock_state, diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index d2212432c456..fc83d3d384d0 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -78,6 +78,9 @@ struct nfs_client { u32 cl_cb_ident; /* v4.0 callback identifier */ const struct nfs4_minor_version_ops *cl_mvops; + /* NFSv4.0 transport blocking */ + struct nfs4_slot_table *cl_slot_tbl; + /* The sequence id to use for the next CREATE_SESSION */ u32 cl_seqid; /* The flags used for obtaining the clientid during EXCHANGE_ID */ |