[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>
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index f280d36..26a0171 100644
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -784,36 +784,36 @@
if (!name)
return -EFAULT;
- if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
+ if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
return -EFAULT;
down_read(&uts_sem);
-
- err = __copy_to_user(&name->sysname,&system_utsname.sysname,
+
+ err = __copy_to_user(&name->sysname,&utsname()->sysname,
__OLD_UTS_LEN);
err |= __put_user(0,name->sysname+__OLD_UTS_LEN);
- err |= __copy_to_user(&name->nodename,&system_utsname.nodename,
+ err |= __copy_to_user(&name->nodename,&utsname()->nodename,
__OLD_UTS_LEN);
err |= __put_user(0,name->nodename+__OLD_UTS_LEN);
- err |= __copy_to_user(&name->release,&system_utsname.release,
+ err |= __copy_to_user(&name->release,&utsname()->release,
__OLD_UTS_LEN);
err |= __put_user(0,name->release+__OLD_UTS_LEN);
- err |= __copy_to_user(&name->version,&system_utsname.version,
+ err |= __copy_to_user(&name->version,&utsname()->version,
__OLD_UTS_LEN);
err |= __put_user(0,name->version+__OLD_UTS_LEN);
- {
- char *arch = "x86_64";
- if (personality(current->personality) == PER_LINUX32)
- arch = "i686";
+ {
+ char *arch = "x86_64";
+ if (personality(current->personality) == PER_LINUX32)
+ arch = "i686";
- err |= __copy_to_user(&name->machine,arch,strlen(arch)+1);
- }
-
- up_read(&uts_sem);
-
- err = err ? -EFAULT : 0;
-
- return err;
+ err |= __copy_to_user(&name->machine, arch, strlen(arch)+1);
+ }
+
+ up_read(&uts_sem);
+
+ err = err ? -EFAULT : 0;
+
+ return err;
}
long sys32_uname(struct old_utsname __user * name)
@@ -822,7 +822,7 @@
if (!name)
return -EFAULT;
down_read(&uts_sem);
- err=copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
if (personality(current->personality) == PER_LINUX32)
err |= copy_to_user(&name->machine, "i686", 5);
diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86_64/kernel/sys_x86_64.c
index 6449ea8..76bf7c2 100644
--- a/arch/x86_64/kernel/sys_x86_64.c
+++ b/arch/x86_64/kernel/sys_x86_64.c
@@ -148,7 +148,7 @@
{
int err;
down_read(&uts_sem);
- err = copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
if (personality(current->personality) == PER_LINUX32)
err |= copy_to_user(&name->machine, "i686", 5);
