NFS: Ensure that the asynchronous RPC calls complete on nfsiod.
We want to ensure that rpc_call_ops that involve mntput() are run on nfsiod
rather than on rpciod, so that they don't deadlock when the resulting
umount calls rpc_shutdown_client(). Hence we specify that read, write and
commit calls must complete on nfsiod.
Ditto for NFSv4 open, lock, locku and close asynchronous calls.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index e017040..e442005 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -280,6 +280,7 @@
.rpc_client = NFS_CLIENT(inode),
.rpc_message = &msg,
.callback_ops = &nfs_read_direct_ops,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
unsigned int pgbase;
@@ -446,6 +447,7 @@
struct rpc_task_setup task_setup_data = {
.rpc_client = NFS_CLIENT(inode),
.callback_ops = &nfs_write_direct_ops,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
@@ -537,6 +539,7 @@
.rpc_message = &msg,
.callback_ops = &nfs_commit_direct_ops,
.callback_data = data,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
@@ -683,6 +686,7 @@
.rpc_client = NFS_CLIENT(inode),
.rpc_message = &msg,
.callback_ops = &nfs_write_direct_ops,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
size_t wsize = NFS_SERVER(inode)->wsize;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 7ce0786..b6db833 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -51,6 +51,7 @@
#include "nfs4_fs.h"
#include "delegation.h"
+#include "internal.h"
#include "iostat.h"
#define NFSDBG_FACILITY NFSDBG_PROC
@@ -773,6 +774,7 @@
.rpc_message = &msg,
.callback_ops = &nfs4_open_confirm_ops,
.callback_data = data,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
int status;
@@ -910,6 +912,7 @@
.rpc_message = &msg,
.callback_ops = &nfs4_open_ops,
.callback_data = data,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
int status;
@@ -1315,6 +1318,7 @@
.rpc_client = server->client,
.rpc_message = &msg,
.callback_ops = &nfs4_close_ops,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
int status = -ENOMEM;
@@ -3235,6 +3239,7 @@
.rpc_client = NFS_CLIENT(lsp->ls_state->inode),
.rpc_message = &msg,
.callback_ops = &nfs4_locku_ops,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
@@ -3419,6 +3424,7 @@
.rpc_client = NFS_CLIENT(state->inode),
.rpc_message = &msg,
.callback_ops = &nfs4_lock_ops,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC,
};
int ret;
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index fab0d37..87546cd 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -177,6 +177,7 @@
.rpc_message = &msg,
.callback_ops = call_ops,
.callback_data = data,
+ .workqueue = nfsiod_workqueue,
.flags = RPC_TASK_ASYNC | swap_flags,
};
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 69b4158..84495ef 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -803,6 +803,7 @@
.rpc_message = &msg,
.callback_ops = call_ops,
.callback_data = data,
+ .workqueue = nfsiod_workqueue,
.flags = flags,
.priority = priority,
};
@@ -1187,6 +1188,7 @@
.rpc_message = &msg,
.callback_ops = &nfs_commit_ops,
.callback_data = data,
+ .workqueue = nfsiod_workqueue,
.flags = flags,
.priority = priority,
};