diff options
Diffstat (limited to 'kernels/linux-libre-xen/0002-sunrpc-replace-sunrpc_net-gssd_running-flag-with-a-m.patch')
| -rw-r--r-- | kernels/linux-libre-xen/0002-sunrpc-replace-sunrpc_net-gssd_running-flag-with-a-m.patch | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/kernels/linux-libre-xen/0002-sunrpc-replace-sunrpc_net-gssd_running-flag-with-a-m.patch b/kernels/linux-libre-xen/0002-sunrpc-replace-sunrpc_net-gssd_running-flag-with-a-m.patch deleted file mode 100644 index 19e04da5d..000000000 --- a/kernels/linux-libre-xen/0002-sunrpc-replace-sunrpc_net-gssd_running-flag-with-a-m.patch +++ /dev/null @@ -1,143 +0,0 @@ -From 89f842435c630f8426f414e6030bc2ffea0d6f81 Mon Sep 17 00:00:00 2001 -From: Jeff Layton <jlayton@redhat.com> -Date: Thu, 14 Nov 2013 07:25:18 -0500 -Subject: [PATCH 2/6] 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> ---- - include/linux/sunrpc/rpc_pipe_fs.h | 2 ++ - net/sunrpc/auth_gss/auth_gss.c | 17 +++++++---------- - net/sunrpc/netns.h | 2 -- - net/sunrpc/rpc_pipe.c | 14 ++++++++++---- - 4 files changed, 19 insertions(+), 16 deletions(-) - -diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h -index 85f1342..7f490be 100644 ---- a/include/linux/sunrpc/rpc_pipe_fs.h -+++ b/include/linux/sunrpc/rpc_pipe_fs.h -@@ -131,5 +131,7 @@ extern int rpc_unlink(struct dentry *); - extern int register_rpc_pipefs(void); - extern void unregister_rpc_pipefs(void); - -+extern bool gssd_running(struct net *net); -+ - #endif - #endif -diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c -index 42fdfc6..0a2aee0 100644 ---- a/net/sunrpc/auth_gss/auth_gss.c -+++ b/net/sunrpc/auth_gss/auth_gss.c -@@ -536,8 +536,7 @@ static void warn_gssd(void) - unsigned long now = jiffies; - - if (time_after(now, ratelimit)) { -- printk(KERN_WARNING "RPC: AUTH_GSS upcall timed out.\n" -- "Please check user daemon is running.\n"); -+ pr_warn("RPC: AUTH_GSS upcall failed. Please check user daemon is running.\n"); - ratelimit = now + 15*HZ; - } - } -@@ -600,7 +599,6 @@ gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred) - struct rpc_pipe *pipe; - struct rpc_cred *cred = &gss_cred->gc_base; - struct gss_upcall_msg *gss_msg; -- unsigned long timeout; - DEFINE_WAIT(wait); - int err; - -@@ -608,17 +606,16 @@ gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred) - __func__, from_kuid(&init_user_ns, cred->cr_uid)); - retry: - err = 0; -- /* Default timeout is 15s unless we know that gssd is not running */ -- timeout = 15 * HZ; -- if (!sn->gssd_running) -- timeout = HZ >> 2; -+ /* if gssd is down, just skip upcalling altogether */ -+ if (!gssd_running(net)) { -+ warn_gssd(); -+ return -EACCES; -+ } - gss_msg = gss_setup_upcall(gss_auth, cred); - if (PTR_ERR(gss_msg) == -EAGAIN) { - err = wait_event_interruptible_timeout(pipe_version_waitqueue, -- sn->pipe_version >= 0, timeout); -+ sn->pipe_version >= 0, 15 * HZ); - if (sn->pipe_version < 0) { -- if (err == 0) -- sn->gssd_running = 0; - warn_gssd(); - err = -EACCES; - } -diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h -index 8a8e841..94e506f 100644 ---- a/net/sunrpc/netns.h -+++ b/net/sunrpc/netns.h -@@ -33,8 +33,6 @@ struct sunrpc_net { - int pipe_version; - atomic_t pipe_users; - struct proc_dir_entry *use_gssp_proc; -- -- unsigned int gssd_running; - }; - - extern int sunrpc_net_id; -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) --- -1.8.5.3 - |