[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>

1 files changed, 6 insertions, 6 deletions

diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
index 1137dd6ea7aa..11bb97174972 100644
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -884,7 +884,7 @@ asmlinkage int irix_getdomainname(char __user *name, int len)
         down_read(&uts_sem);
         if (len > __NEW_UTS_LEN)
                 len = __NEW_UTS_LEN;
-        err = copy_to_user(name, system_utsname.domainname, len) ? -EFAULT : 0;
+        err = copy_to_user(name, utsname()->domainname, len) ? -EFAULT : 0;
         up_read(&uts_sem);
 
         return err;
@@ -1127,11 +1127,11 @@ struct iuname {
 asmlinkage int irix_uname(struct iuname __user *buf)
 {
         down_read(&uts_sem);
-        if (copy_from_user(system_utsname.sysname, buf->sysname, 65)
-            || copy_from_user(system_utsname.nodename, buf->nodename, 65)
-            || copy_from_user(system_utsname.release, buf->release, 65)
-            || copy_from_user(system_utsname.version, buf->version, 65)
-            || copy_from_user(system_utsname.machine, buf->machine, 65)) {
+        if (copy_from_user(utsname()->sysname, buf->sysname, 65)
+            || copy_from_user(utsname()->nodename, buf->nodename, 65)
+            || copy_from_user(utsname()->release, buf->release, 65)
+            || copy_from_user(utsname()->version, buf->version, 65)
+            || copy_from_user(utsname()->machine, buf->machine, 65)) {
                 return -EFAULT;
         }
         up_read(&uts_sem);