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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-25 17:44:06 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-25 17:44:06 +0400 |
| commit | ef78cc75f11ba3b085b105209cbfc6666ee10499 (patch) | |
| tree | 1820dbd8ebb422b0a5751981cdfb6a2ecd30e20b /net/sunrpc/rpc_pipe.c | |
| parent | 1442d1678ca7e53574fd403ba7bee6f4125d920c (diff) | |
| parent | 940aab490215424a269f93d2eba2794fc8b3e269 (diff) | |
| download | linux-ef78cc75f11ba3b085b105209cbfc6666ee10499.tar.xz | |
Merge branch 'nfs-for-3.2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'nfs-for-3.2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (26 commits)
Check validity of cl_rpcclient in nfs_server_list_show
NFS: Get rid of the nfs_rdata_mempool
NFS: Don't rely on PageError in nfs_readpage_release_partial
NFS: Get rid of unnecessary calls to ClearPageError() in read code
NFS: Get rid of nfs_restart_rpc()
NFS: Get rid of the unused nfs_write_data->flags field
NFS: Get rid of the unused nfs_read_data->flags field
NFSv4: Translate NFS4ERR_BADNAME into ENOENT when applied to a lookup
NFS: Remove the unused "lookupfh()" version of nfs4_proc_lookup()
NFS: Use the inode->i_version to cache NFSv4 change attribute information
SUNRPC: Remove unnecessary export of rpc_sockaddr2uaddr
SUNRPC: Fix rpc_sockaddr2uaddr
nfs/super.c: local functions should be static
pnfsblock: fix writeback deadlock
pnfsblock: fix NULL pointer dereference
pnfs: recoalesce when ld read pagelist fails
pnfs: recoalesce when ld write pagelist fails
pnfs: make _set_lo_fail generic
pnfsblock: add missing rpc_put_mount and path_put
SUNRPC/NFS: make rpc pipe upcall generic
...
Diffstat (limited to 'net/sunrpc/rpc_pipe.c')
| -rw-r--r-- | net/sunrpc/rpc_pipe.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 3156ba864519..bfddd68b31d3 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -77,6 +77,26 @@ rpc_timeout_upcall_queue(struct work_struct *work) rpc_purge_list(rpci, &free_list, destroy_msg, -ETIMEDOUT); } +ssize_t rpc_pipe_generic_upcall(struct file *filp, struct rpc_pipe_msg *msg, + char __user *dst, size_t buflen) +{ + char *data = (char *)msg->data + msg->copied; + size_t mlen = min(msg->len - msg->copied, buflen); + unsigned long left; + + left = copy_to_user(dst, data, mlen); + if (left == mlen) { + msg->errno = -EFAULT; + return -EFAULT; + } + + mlen -= left; + msg->copied += mlen; + msg->errno = 0; + return mlen; +} +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 |