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authorOlga Kornievskaia <kolga@netapp.com>2023-07-13 20:02:38 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-06 15:56:31 +0300
commitf86a2c2ea085b659d806292dcb753685fd517526 (patch)
tree8ae88dafa6f4de48ba4f319e40730cd8522329ac
parent839e07de9a0a5de098283e53d243e14a1f4bc92c (diff)
downloadlinux-f86a2c2ea085b659d806292dcb753685fd517526.tar.xz
NFSv4.1: use EXCHGID4_FLAG_USE_PNFS_DS for DS server
[ Upstream commit 51d674a5e4889f1c8e223ac131cf218e1631e423 ] After receiving the location(s) of the DS server(s) in the GETDEVINCEINFO, create the request for the clientid to such server and indicate that the client is connecting to a DS. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Stable-dep-of: 806a3bc421a1 ("NFSv4.1: fix pnfs MDS=DS session trunking") Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--fs/nfs/nfs4client.c3
-rw-r--r--fs/nfs/nfs4proc.c4
2 files changed, 7 insertions, 0 deletions
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index d3051b051a56..d3e2b0867dc1 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -231,6 +231,8 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
__set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
__set_bit(NFS_CS_NO_RETRANS_TIMEOUT, &clp->cl_flags);
+ if (test_bit(NFS_CS_DS, &cl_init->init_flags))
+ __set_bit(NFS_CS_DS, &clp->cl_flags);
/*
* Set up the connection to the server before we add add to the
* global list.
@@ -993,6 +995,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_server *mds_srv,
if (mds_srv->flags & NFS_MOUNT_NORESVPORT)
__set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
+ __set_bit(NFS_CS_DS, &cl_init.init_flags);
/*
* Set an authflavor equual to the MDS value. Use the MDS nfs_client
* cl_ipaddr so as to use the same EXCHANGE_ID co_ownerid as the MDS
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 2dec0fed1ba1..acb1346da13e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -8794,6 +8794,8 @@ nfs4_run_exchange_id(struct nfs_client *clp, const struct cred *cred,
#ifdef CONFIG_NFS_V4_1_MIGRATION
calldata->args.flags |= EXCHGID4_FLAG_SUPP_MOVED_MIGR;
#endif
+ if (test_bit(NFS_CS_DS, &clp->cl_flags))
+ calldata->args.flags |= EXCHGID4_FLAG_USE_PNFS_DS;
msg.rpc_argp = &calldata->args;
msg.rpc_resp = &calldata->res;
task_setup_data.callback_data = calldata;
@@ -8871,6 +8873,8 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cre
/* Save the EXCHANGE_ID verifier session trunk tests */
memcpy(clp->cl_confirm.data, argp->verifier.data,
sizeof(clp->cl_confirm.data));
+ if (resp->flags & EXCHGID4_FLAG_USE_PNFS_DS)
+ set_bit(NFS_CS_DS, &clp->cl_flags);
out:
trace_nfs4_exchange_id(clp, status);
rpc_put_task(task);