diff options
| author | Santosh kumar pradhan <santoshkumar.pradhan@wdc.com> | 2018-12-19 12:29:57 +0530 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2019-01-02 12:05:19 -0500 |
| commit | 10e037d1e0d5d93cc057e4fad6911e481a462407 (patch) | |
| tree | 5826e59131a9a00b58ab16a65316c47a808e7907 /fs/nfs | |
| parent | cb24e35b4fa8448e7ee963884958235b8de44f25 (diff) | |
| download | linux-10e037d1e0d5d93cc057e4fad6911e481a462407.tar.bz2 | |
sunrpc: Add xprt after nfs4_test_session_trunk()
Multipathing: In case of NFSv3, rpc_clnt_test_and_add_xprt() adds
the xprt to xprt switch (i.e. xps) if rpc_call_null_helper() returns
success. But in case of NFSv4.1, it needs to do EXCHANGEID to verify
the path along with check for session trunking.
Add the xprt in nfs4_test_session_trunk() only when
nfs4_detect_session_trunking() returns success. Also release refcount
hold by rpc_clnt_setup_test_and_add_xprt().
Signed-off-by: Santosh kumar pradhan <santoshkumar.pradhan@wdc.com>
Tested-by: Suresh Jayaraman <suresh.jayaraman@wdc.com>
Reported-by: Aditya Agnihotri <aditya.agnihotri@wdc.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/internal.h | 6 | ||||
| -rw-r--r-- | fs/nfs/nfs4_fs.h | 3 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 8 |
3 files changed, 10 insertions, 7 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 78d83b4bc398..7f80f036ebd9 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -568,9 +568,9 @@ extern int nfs40_walk_client_list(struct nfs_client *clp, extern int nfs41_walk_client_list(struct nfs_client *clp, struct nfs_client **result, const struct cred *cred); -extern int nfs4_test_session_trunk(struct rpc_clnt *, - struct rpc_xprt *, - void *); +extern void nfs4_test_session_trunk(struct rpc_clnt *clnt, + struct rpc_xprt *xprt, + void *data); static inline struct inode *nfs_igrab_and_active(struct inode *inode) { diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 993378a8f14f..06ac3d9ac7c6 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -65,7 +65,8 @@ struct nfs4_minor_version_ops { nfs4_stateid *, const struct cred *); struct nfs_seqid * (*alloc_seqid)(struct nfs_seqid_counter *, gfp_t); - int (*session_trunk)(struct rpc_clnt *, struct rpc_xprt *, void *); + void (*session_trunk)(struct rpc_clnt *clnt, + struct rpc_xprt *xprt, void *data); 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; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 7d1f080e7de1..72961b5f6993 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -8082,7 +8082,7 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cred) * @xprt: the rpc_xprt to test * @data: call data for _nfs4_proc_exchange_id. */ -int nfs4_test_session_trunk(struct rpc_clnt *clnt, struct rpc_xprt *xprt, +void nfs4_test_session_trunk(struct rpc_clnt *clnt, struct rpc_xprt *xprt, void *data) { struct nfs4_add_xprt_data *adata = (struct nfs4_add_xprt_data *)data; @@ -8099,15 +8099,17 @@ int nfs4_test_session_trunk(struct rpc_clnt *clnt, struct rpc_xprt *xprt, /* Test connection for session trunking. Async exchange_id call */ task = nfs4_run_exchange_id(adata->clp, adata->cred, sp4_how, xprt); if (IS_ERR(task)) - return PTR_ERR(task); + return; status = task->tk_status; if (status == 0) status = nfs4_detect_session_trunking(adata->clp, task->tk_msg.rpc_resp, xprt); + if (status == 0) + rpc_clnt_xprt_switch_add_xprt(clnt, xprt); + rpc_put_task(task); - return status; } EXPORT_SYMBOL_GPL(nfs4_test_session_trunk); |