commit e9ff3990f08e9a0c2839cc22808b01732ea5b3e4
author Serge E. Hallyn <serue@us.ibm.com> Mon Oct 02 02:18:11 2006 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> Mon Oct 02 07:57:21 2006 -0700
tree c638a7b89f0c5e8adc410316d06ca1de8b8dabee
parent 0bdd7aab7f0ecd5d337910816aa058c18398628e

[PATCH] namespaces: utsname: switch to using uts namespaces

Replace references to system_utsname to the per-process uts namespace
where appropriate.  This includes things like uname.

Changes: Per Eric Biederman's comments, use the per-process uts namespace
	for ELF_PLATFORM, sunrpc, and parts of net/ipv4/ipconfig.c

[jdike@addtoit.com: UML fix]
[clg@fr.ibm.com: cleanup]
[akpm@osdl.org: build fix]
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Andrey Savochkin <saw@sw.ru>
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/powerpc/kernel/syscalls.c

diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index 9b69d99..d358866 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -260,7 +260,7 @@
 	int err = 0;
 
 	down_read(&uts_sem);
-	if (copy_to_user(name, &system_utsname, sizeof(*name)))
+	if (copy_to_user(name, utsname(), sizeof(*name)))
 		err = -EFAULT;
 	up_read(&uts_sem);
 	if (!err)
@@ -273,7 +273,7 @@
 	int err = 0;
 	
 	down_read(&uts_sem);
-	if (copy_to_user(name, &system_utsname, sizeof(*name)))
+	if (copy_to_user(name, utsname(), sizeof(*name)))
 		err = -EFAULT;
 	up_read(&uts_sem);
 	if (!err)
@@ -289,19 +289,19 @@
 		return -EFAULT;
   
 	down_read(&uts_sem);
-	error = __copy_to_user(&name->sysname, &system_utsname.sysname,
+	error = __copy_to_user(&name->sysname, &utsname()->sysname,
 			       __OLD_UTS_LEN);
 	error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->nodename, &system_utsname.nodename,
+	error |= __copy_to_user(&name->nodename, &utsname()->nodename,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->release, &system_utsname.release,
+	error |= __copy_to_user(&name->release, &utsname()->release,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->release + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->version, &system_utsname.version,
+	error |= __copy_to_user(&name->version, &utsname()->version,
 				__OLD_UTS_LEN);
 	error |= __put_user(0, name->version + __OLD_UTS_LEN);
-	error |= __copy_to_user(&name->machine, &system_utsname.machine,
+	error |= __copy_to_user(&name->machine, &utsname()->machine,
 				__OLD_UTS_LEN);
 	error |= override_machine(name->machine);
 	up_read(&uts_sem);