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NFS client updates for Linux 3.6

Browse source 
Features include:
 - Patches from Bryan to allow splitting of the NFSv2/v3/v4 code into
   separate modules.
 - Fix Oopses in the NFSv4 idmapper
 - Fix a deadlock whereby rpciod tries to allocate a new socket and
   ends up recursing into the NFS code due to memory reclaim.
 - Increase the number of permitted callback connections.
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Merge tag 'nfs-for-3.6-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull second wave of NFS client updates from Trond Myklebust:

 - Patches from Bryan to allow splitting of the NFSv2/v3/v4 code into
   separate modules.

 - Fix Oopses in the NFSv4 idmapper

 - Fix a deadlock whereby rpciod tries to allocate a new socket and ends
   up recursing into the NFS code due to memory reclaim.

 - Increase the number of permitted callback connections.

* tag 'nfs-for-3.6-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  nfs: explicitly reject LOCK_MAND flock() requests
  nfs: increase number of permitted callback connections.
  SUNRPC: return negative value in case rpcbind client creation error
  NFS: Convert v4 into a module
  NFS: Convert v3 into a module
  NFS: Convert v2 into a module
  NFS: Keep module parameters in the generic NFS client
  NFS: Split out remaining NFS v4 inode functions
  NFS: Pass super operations and xattr handlers in the nfs_subversion
  NFS: Only initialize the ACL client in the v3 case
  NFS: Create a try_mount rpc op
  NFS: Remove the NFS v4 xdev mount function
  NFS: Add version registering framework
  NFS: Fix a number of bugs in the idmapper
  nfs: skip commit in releasepage if we're freeing memory for fs-related reasons
  sunrpc: clarify comments on rpc_make_runnable
  pnfsblock: bail out partial page IO
This commit is contained in:
Linus Torvalds 2012-07-31 18:45:44 -07:00
commit 6dbb35b0a7
40 changed files with 725 additions and 403 deletions
Download patch file Download diff file Expand all files Collapse all files

4
net/sunrpc/rpcb_clnt.c
View file

@ -251,7 +251,7 @@ static int rpcb_create_local_unix(struct net *net)
if (IS_ERR(clnt)) {
dprintk("RPC: failed to create AF_LOCAL rpcbind "
"client (errno %ld).\n", PTR_ERR(clnt));
result = -PTR_ERR(clnt);
result = PTR_ERR(clnt);
goto out;
}
@ -298,7 +298,7 @@ static int rpcb_create_local_net(struct net *net)
if (IS_ERR(clnt)) {
dprintk("RPC: failed to create local rpcbind "
"client (errno %ld).\n", PTR_ERR(clnt));
result = -PTR_ERR(clnt);
result = PTR_ERR(clnt);
goto out;
}

7
net/sunrpc/sched.c
View file

@ -300,8 +300,9 @@ EXPORT_SYMBOL_GPL(__rpc_wait_for_completion_task);
/*
* Make an RPC task runnable.
*
* Note: If the task is ASYNC, this must be called with
* the spinlock held to protect the wait queue operation.
* Note: If the task is ASYNC, and is being made runnable after sitting on an
* rpc_wait_queue, this must be called with the queue spinlock held to protect
* the wait queue operation.
*/
static void rpc_make_runnable(struct rpc_task *task)
{
@ -790,7 +791,9 @@ void rpc_execute(struct rpc_task *task)
static void rpc_async_schedule(struct work_struct *work)
{
current->flags |= PF_FSTRANS;
__rpc_execute(container_of(work, struct rpc_task, u.tk_work));
current->flags &= ~PF_FSTRANS;
}
/**

3
net/sunrpc/xprtrdma/transport.c
View file

@ -200,6 +200,7 @@ xprt_rdma_connect_worker(struct work_struct *work)
int rc = 0;
if (!xprt->shutdown) {
current->flags |= PF_FSTRANS;
xprt_clear_connected(xprt);
dprintk("RPC: %s: %sconnect\n", __func__,
@ -212,10 +213,10 @@ xprt_rdma_connect_worker(struct work_struct *work)
out:
xprt_wake_pending_tasks(xprt, rc);
out_clear:
dprintk("RPC: %s: exit\n", __func__);
xprt_clear_connecting(xprt);
current->flags &= ~PF_FSTRANS;
}
/*

10
net/sunrpc/xprtsock.c
View file

@ -1892,6 +1892,8 @@ static void xs_local_setup_socket(struct work_struct *work)
if (xprt->shutdown)
goto out;
current->flags |= PF_FSTRANS;
clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
status = __sock_create(xprt->xprt_net, AF_LOCAL,
SOCK_STREAM, 0, &sock, 1);
@ -1925,6 +1927,7 @@ static void xs_local_setup_socket(struct work_struct *work)
out:
xprt_clear_connecting(xprt);
xprt_wake_pending_tasks(xprt, status);
current->flags &= ~PF_FSTRANS;
}
static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
@ -1967,6 +1970,8 @@ static void xs_udp_setup_socket(struct work_struct *work)
if (xprt->shutdown)
goto out;
current->flags |= PF_FSTRANS;
/* Start by resetting any existing state */
xs_reset_transport(transport);
sock = xs_create_sock(xprt, transport,
@ -1985,6 +1990,7 @@ static void xs_udp_setup_socket(struct work_struct *work)
out:
xprt_clear_connecting(xprt);
xprt_wake_pending_tasks(xprt, status);
current->flags &= ~PF_FSTRANS;
}
/*
@ -2110,6 +2116,8 @@ static void xs_tcp_setup_socket(struct work_struct *work)
if (xprt->shutdown)
goto out;
current->flags |= PF_FSTRANS;
if (!sock) {
clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
sock = xs_create_sock(xprt, transport,
@ -2159,6 +2167,7 @@ static void xs_tcp_setup_socket(struct work_struct *work)
case -EINPROGRESS:
case -EALREADY:
xprt_clear_connecting(xprt);
current->flags &= ~PF_FSTRANS;
return;
case -EINVAL:
/* Happens, for instance, if the user specified a link
@ -2171,6 +2180,7 @@ out_eagain:
out:
xprt_clear_connecting(xprt);
xprt_wake_pending_tasks(xprt, status);
current->flags &= ~PF_FSTRANS;
}
/**