[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, 7 insertions, 7 deletions

diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index 9b69d99a9103..d358866b880f 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -260,7 +260,7 @@ long ppc_newuname(struct new_utsname __user * name)
         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 sys_uname(struct old_utsname __user *name)
         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 @@ int sys_olduname(struct oldold_utsname __user *name)
                 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);