From: Steven Rostedt <rostedt@goodmis.org>
Date: Wed, 17 Aug 2005 18:25:23 +0000 (-0400)
Subject: [PATCH] nfsd to unlock kernel before exiting
X-Git-Tag: v2.6.13-rc7~67
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c4f92dba97f4e3aa757500896f87001569f4604b;p=linux-2.6

[PATCH] nfsd to unlock kernel before exiting

The nfsd holds the big kernel lock upon exit, when it really shouldn't.
Not to mention that this breaks Ingo's RT patch. This is a trivial fix
to release the lock.

Ingo, this patch also works with your kernel, and stops the problem with
nfsd.

Note, there's a "goto out;" where "out:" is right above svc_exit_thread.
The point of the goto also holds the kernel_lock, so I don't see any
problem here in releasing it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 07b9a065e9..1697539a71 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -287,6 +287,7 @@ out:
 	svc_exit_thread(rqstp);
 
 	/* Release module */
+	unlock_kernel();
 	module_put_and_exit(0);
 }