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authorJeff Layton <jlayton@redhat.com>2013-11-14 12:25:18 (GMT)
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-12-06 18:06:31 (GMT)
commit89f842435c630f8426f414e6030bc2ffea0d6f81 (patch)
tree5f377121615ac15042edbfb1337d569446863b21 /net/sunrpc/rpc_pipe.c
parent4b9a445e3eeb8bd9278b1ae51c1b3a651e370cd6 (diff)
downloadlinux-89f842435c630f8426f414e6030bc2ffea0d6f81.tar.xz
sunrpc: replace sunrpc_net->gssd_running flag with a more reliable check
Now that we have a more reliable method to tell if gssd is running, we can replace the sn->gssd_running flag with a function that will query to see if it's up and running. There's also no need to attempt an upcall that we know will fail, so just return -EACCES if gssd isn't running. Finally, fix the warn_gss() message not to claim that that the upcall timed out since we don't necesarily perform one now when gssd isn't running, and remove the extraneous newline from the message. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/rpc_pipe.c')
-rw-r--r--net/sunrpc/rpc_pipe.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index c23458b..5cd7ad1 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -216,14 +216,11 @@ rpc_destroy_inode(struct inode *inode)
static int
rpc_pipe_open(struct inode *inode, struct file *filp)
{
- struct net *net = inode->i_sb->s_fs_info;
- struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
struct rpc_pipe *pipe;
int first_open;
int res = -ENXIO;
mutex_lock(&inode->i_mutex);
- sn->gssd_running = 1;
pipe = RPC_I(inode)->pipe;
if (pipe == NULL)
goto out;
@@ -1222,7 +1219,6 @@ int rpc_pipefs_init_net(struct net *net)
return PTR_ERR(sn->gssd_dummy);
mutex_init(&sn->pipefs_sb_lock);
- sn->gssd_running = 1;
sn->pipe_version = -1;
return 0;
}
@@ -1376,6 +1372,16 @@ err_depopulate:
return err;
}
+bool
+gssd_running(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct rpc_pipe *pipe = sn->gssd_dummy;
+
+ return pipe->nreaders || pipe->nwriters;
+}
+EXPORT_SYMBOL_GPL(gssd_running);
+
static struct dentry *
rpc_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)