From 9915ea7e0a83c0a4b94d0c5e05a9bb690fce809f Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Fri, 9 Aug 2013 12:48:27 -0400 Subject: [PATCH] NFS: Add RPC callouts to start NFSv4.0 synchronous requests Refactor nfs4_call_sync_sequence() so it is used for NFSv4.0 now. The RPC callouts will house transport blocking logic similar to NFSv4.1 sessions. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- fs/nfs/nfs4_fs.h | 1 + fs/nfs/nfs4proc.c | 61 +++++++++++++++++++++++++++++++++++++------------------ 2 files changed, 42 insertions(+), 20 deletions(-) diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 0feb238..bf2184e 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -49,6 +49,7 @@ struct nfs4_minor_version_ops { struct nfs_fsinfo *); int (*free_lock_state)(struct nfs_server *, struct nfs4_lock_state *); + const struct rpc_call_ops *call_sync_ops; const struct nfs4_state_recovery_ops *reboot_recovery_ops; const struct nfs4_state_recovery_ops *nograce_recovery_ops; const struct nfs4_state_maintenance_ops *state_renewal_ops; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 7b702bc..2fbf482 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -741,6 +741,41 @@ static const struct rpc_call_ops nfs41_call_sync_ops = { .rpc_call_done = nfs41_call_sync_done, }; +#else +static int nfs4_setup_sequence(const struct nfs_server *server, + struct nfs4_sequence_args *args, + struct nfs4_sequence_res *res, + struct rpc_task *task) +{ + rpc_call_start(task); + return 0; +} + +static int nfs4_sequence_done(struct rpc_task *task, + struct nfs4_sequence_res *res) +{ + return 1; +} +#endif /* CONFIG_NFS_V4_1 */ + +static void nfs40_call_sync_prepare(struct rpc_task *task, void *calldata) +{ + struct nfs4_call_sync_data *data = calldata; + nfs4_setup_sequence(data->seq_server, + data->seq_args, data->seq_res, task); +} + +static void nfs40_call_sync_done(struct rpc_task *task, void *calldata) +{ + struct nfs4_call_sync_data *data = calldata; + nfs4_sequence_done(task, data->seq_res); +} + +static const struct rpc_call_ops nfs40_call_sync_ops = { + .rpc_call_prepare = nfs40_call_sync_prepare, + .rpc_call_done = nfs40_call_sync_done, +}; + static int nfs4_call_sync_sequence(struct rpc_clnt *clnt, struct nfs_server *server, struct rpc_message *msg, @@ -749,6 +784,7 @@ static int nfs4_call_sync_sequence(struct rpc_clnt *clnt, { int ret; struct rpc_task *task; + struct nfs_client *clp = server->nfs_client; struct nfs4_call_sync_data data = { .seq_server = server, .seq_args = args, @@ -757,7 +793,7 @@ static int nfs4_call_sync_sequence(struct rpc_clnt *clnt, struct rpc_task_setup task_setup = { .rpc_client = clnt, .rpc_message = msg, - .callback_ops = &nfs41_call_sync_ops, + .callback_ops = clp->cl_mvops->call_sync_ops, .callback_data = &data }; @@ -771,23 +807,6 @@ static int nfs4_call_sync_sequence(struct rpc_clnt *clnt, return ret; } -#else -static int nfs4_setup_sequence(const struct nfs_server *server, - struct nfs4_sequence_args *args, - struct nfs4_sequence_res *res, - struct rpc_task *task) -{ - rpc_call_start(task); - return 0; -} - -static int nfs4_sequence_done(struct rpc_task *task, - struct nfs4_sequence_res *res) -{ - return 1; -} -#endif /* CONFIG_NFS_V4_1 */ - static int _nfs4_call_sync(struct rpc_clnt *clnt, struct nfs_server *server, @@ -807,8 +826,7 @@ int nfs4_call_sync(struct rpc_clnt *clnt, int cache_reply) { nfs4_init_sequence(args, res, cache_reply); - return server->nfs_client->cl_mvops->call_sync(clnt, server, msg, - args, res); + return nfs4_call_sync_sequence(clnt, server, msg, args, res); } static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo) @@ -7529,6 +7547,7 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = { .match_stateid = nfs4_match_stateid, .find_root_sec = nfs4_find_root_sec, .free_lock_state = nfs4_release_lockowner, + .call_sync_ops = &nfs40_call_sync_ops, .reboot_recovery_ops = &nfs40_reboot_recovery_ops, .nograce_recovery_ops = &nfs40_nograce_recovery_ops, .state_renewal_ops = &nfs40_state_renewal_ops, @@ -7547,6 +7566,7 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = { .match_stateid = nfs41_match_stateid, .find_root_sec = nfs41_find_root_sec, .free_lock_state = nfs41_free_lock_state, + .call_sync_ops = &nfs41_call_sync_ops, .reboot_recovery_ops = &nfs41_reboot_recovery_ops, .nograce_recovery_ops = &nfs41_nograce_recovery_ops, .state_renewal_ops = &nfs41_state_renewal_ops, @@ -7566,6 +7586,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = { .match_stateid = nfs41_match_stateid, .find_root_sec = nfs41_find_root_sec, .free_lock_state = nfs41_free_lock_state, + .call_sync_ops = &nfs41_call_sync_ops, .reboot_recovery_ops = &nfs41_reboot_recovery_ops, .nograce_recovery_ops = &nfs41_nograce_recovery_ops, .state_renewal_ops = &nfs41_state_renewal_ops, -- 2.7.4