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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-29 10:43:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-29 10:43:51 -0700
commit53f2c4a8fd882009a2a75c5b72d6898c0808616e (patch)
tree922293a1056c0c2358203cdab832f0e0891e628a /net/sunrpc
parent8f6576ad476b2a22d05ddafd2ddaee102577a4ed (diff)
parentcc0a98436820b161b595b8cc1d2329bcf7328107 (diff)
Merge tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust: "New features include: - Rewrite the O_DIRECT code so that it can share the same coalescing and pNFS functionality as the page cache code. - Allow the server to provide hints as to when we should use pNFS, and when it is more efficient to read and write through the metadata server. - NFS cache consistency updates: * Use the ctime to emulate a change attribute for NFSv2/v3 so that all NFS versions can share the same cache management code. * New cache management code will only look at the change attribute and size attribute when deciding whether or not our cached data is still valid or not. * Don't request NFSv4 post-op attributes on writes in cases such as O_DIRECT, where we don't care about data cache consistency, or when we have a write delegation, and know that our cache is still consistent. * Don't request NFSv4 post-op attributes on operations such as COMMIT, where there are no expected metadata updates. * Don't request NFSv4 directory post-op attributes in cases where the operations themselves already return change attribute updates: i.e. operations such as OPEN, CREATE, REMOVE, LINK and RENAME. - Speed up 'ls' and friends by using READDIR rather than READDIRPLUS if we detect no attempts to lookup filenames. - Improve the code sharing between NFSv2/v3 and v4 mounts - NFSv4.1 state management efficiency improvements - More patches in preparation for NFSv4/v4.1 migration functionality." Fix trivial conflict in fs/nfs/nfs4proc.c that was due to the dcache qstr name initialization changes (that made the length/hash a 64-bit union) * tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (146 commits) NFSv4: Add debugging printks to state manager NFSv4: Map NFS4ERR_SHARE_DENIED into an EACCES error instead of EIO NFSv4: update_changeattr does not need to set NFS_INO_REVAL_PAGECACHE NFSv4.1: nfs4_reset_session should use nfs4_handle_reclaim_lease_error NFSv4.1: Handle other occurrences of NFS4ERR_CONN_NOT_BOUND_TO_SESSION NFSv4.1: Handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION in the state manager NFSv4.1: Handle errors in nfs4_bind_conn_to_session NFSv4.1: nfs4_bind_conn_to_session should drain the session NFSv4.1: Don't clobber the seqid if exchange_id returns a confirmed clientid NFSv4.1: Add DESTROY_CLIENTID NFSv4.1: Ensure we use the correct credentials for bind_conn_to_session NFSv4.1: Ensure we use the correct credentials for session create/destroy NFSv4.1: Move NFSPROC4_CLNT_BIND_CONN_TO_SESSION to the end of the operations NFSv4.1: Handle NFS4ERR_SEQ_MISORDERED when confirming the lease NFSv4: When purging the lease, we must clear NFS4CLNT_LEASE_CONFIRM NFSv4: Clean up the error handling for nfs4_reclaim_lease NFSv4.1: Exchange ID must use GFP_NOFS allocation mode nfs41: Use BIND_CONN_TO_SESSION for CB_PATH_DOWN* nfs4.1: add BIND_CONN_TO_SESSION operation NFSv4.1 test the mdsthreshold hint parameters ...
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/clnt.c2
-rw-r--r--net/sunrpc/rpc_pipe.c10
-rw-r--r--net/sunrpc/rpcb_clnt.c2
-rw-r--r--net/sunrpc/xprt.c7
4 files changed, 12 insertions, 9 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 7fee13b331d..f56f045778a 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1286,6 +1286,8 @@ call_reserveresult(struct rpc_task *task)
}
switch (status) {
+ case -ENOMEM:
+ rpc_delay(task, HZ >> 2);
case -EAGAIN: /* woken up; retry */
task->tk_action = call_reserve;
return;
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index fd2423991c2..04040476082 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -120,7 +120,7 @@ EXPORT_SYMBOL_GPL(rpc_pipe_generic_upcall);
/**
* rpc_queue_upcall - queue an upcall message to userspace
- * @inode: inode of upcall pipe on which to queue given message
+ * @pipe: upcall pipe on which to queue given message
* @msg: message to queue
*
* Call with an @inode created by rpc_mkpipe() to queue an upcall.
@@ -819,9 +819,7 @@ static int rpc_rmdir_depopulate(struct dentry *dentry,
* @parent: dentry of directory to create new "pipe" in
* @name: name of pipe
* @private: private data to associate with the pipe, for the caller's use
- * @ops: operations defining the behavior of the pipe: upcall, downcall,
- * release_pipe, open_pipe, and destroy_msg.
- * @flags: rpc_pipe flags
+ * @pipe: &rpc_pipe containing input parameters
*
* Data is made available for userspace to read by calls to
* rpc_queue_upcall(). The actual reads will result in calls to
@@ -943,7 +941,7 @@ struct dentry *rpc_create_client_dir(struct dentry *dentry,
/**
* rpc_remove_client_dir - Remove a directory created with rpc_create_client_dir()
- * @clnt: rpc client
+ * @dentry: dentry for the pipe
*/
int rpc_remove_client_dir(struct dentry *dentry)
{
@@ -1115,7 +1113,7 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
sb->s_op = &s_ops;
sb->s_time_gran = 1;
- inode = rpc_get_inode(sb, S_IFDIR | 0755);
+ inode = rpc_get_inode(sb, S_IFDIR | S_IRUGO | S_IXUGO);
sb->s_root = root = d_make_root(inode);
if (!root)
return -ENOMEM;
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 78ac39fd9fe..3c0653439f3 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -394,6 +394,7 @@ static int rpcb_register_call(struct rpc_clnt *clnt, struct rpc_message *msg)
/**
* rpcb_register - set or unset a port registration with the local rpcbind svc
+ * @net: target network namespace
* @prog: RPC program number to bind
* @vers: RPC version number to bind
* @prot: transport protocol to register
@@ -521,6 +522,7 @@ static int rpcb_unregister_all_protofamilies(struct sunrpc_net *sn,
/**
* rpcb_v4_register - set or unset a port registration with the local rpcbind
+ * @net: target network namespace
* @program: RPC program number of service to (un)register
* @version: RPC version number of service to (un)register
* @address: address family, IP address, and port to (un)register
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 6fe2dcead15..3c83035cdaa 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -979,20 +979,21 @@ static void xprt_alloc_slot(struct rpc_task *task)
list_del(&req->rq_list);
goto out_init_req;
}
- req = xprt_dynamic_alloc_slot(xprt, GFP_NOWAIT);
+ req = xprt_dynamic_alloc_slot(xprt, GFP_NOWAIT|__GFP_NOWARN);
if (!IS_ERR(req))
goto out_init_req;
switch (PTR_ERR(req)) {
case -ENOMEM:
- rpc_delay(task, HZ >> 2);
dprintk("RPC: dynamic allocation of request slot "
"failed! Retrying\n");
+ task->tk_status = -ENOMEM;
break;
case -EAGAIN:
rpc_sleep_on(&xprt->backlog, task, NULL);
dprintk("RPC: waiting for request slot\n");
+ default:
+ task->tk_status = -EAGAIN;
}
- task->tk_status = -EAGAIN;
return;
out_init_req:
task->tk_status = 0;