[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/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c
index c608c94..89ac435 100644
--- a/arch/sparc64/kernel/sys_sparc.c
+++ b/arch/sparc64/kernel/sys_sparc.c
@@ -712,13 +712,13 @@
down_read(&uts_sem);
- nlen = strlen(system_utsname.domainname) + 1;
+ nlen = strlen(utsname()->domainname) + 1;
err = -EINVAL;
if (nlen > len)
goto out;
err = -EFAULT;
- if (!copy_to_user(name, system_utsname.domainname, nlen))
+ if (!copy_to_user(name, utsname()->domainname, nlen))
err = 0;
out:
diff --git a/arch/sparc64/kernel/sys_sunos32.c b/arch/sparc64/kernel/sys_sunos32.c
index 87ebdf8..953296b 100644
--- a/arch/sparc64/kernel/sys_sunos32.c
+++ b/arch/sparc64/kernel/sys_sunos32.c
@@ -439,16 +439,16 @@
int ret;
down_read(&uts_sem);
- ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0],
+ ret = copy_to_user(&name->sname[0], &utsname()->sysname[0],
sizeof(name->sname) - 1);
- ret |= copy_to_user(&name->nname[0], &system_utsname.nodename[0],
+ ret |= copy_to_user(&name->nname[0], &utsname()->nodename[0],
sizeof(name->nname) - 1);
ret |= put_user('\0', &name->nname[8]);
- ret |= copy_to_user(&name->rel[0], &system_utsname.release[0],
+ ret |= copy_to_user(&name->rel[0], &utsname()->release[0],
sizeof(name->rel) - 1);
- ret |= copy_to_user(&name->ver[0], &system_utsname.version[0],
+ ret |= copy_to_user(&name->ver[0], &utsname()->version[0],
sizeof(name->ver) - 1);
- ret |= copy_to_user(&name->mach[0], &system_utsname.machine[0],
+ ret |= copy_to_user(&name->mach[0], &utsname()->machine[0],
sizeof(name->mach) - 1);
up_read(&uts_sem);
return (ret ? -EFAULT : 0);
diff --git a/arch/sparc64/solaris/misc.c b/arch/sparc64/solaris/misc.c
index 9c58132..9ed9979 100644
--- a/arch/sparc64/solaris/misc.c
+++ b/arch/sparc64/solaris/misc.c
@@ -249,7 +249,7 @@
/* Let's cheat */
err = set_utsfield(v->sysname, "SunOS", 1, 0);
down_read(&uts_sem);
- err |= set_utsfield(v->nodename, system_utsname.nodename,
+ err |= set_utsfield(v->nodename, utsname()->nodename,
1, 1);
up_read(&uts_sem);
err |= set_utsfield(v->release, "2.6", 0, 0);
@@ -273,7 +273,7 @@
/* Why should we not lie a bit? */
down_read(&uts_sem);
err = set_utsfield(v->sysname, "SunOS", 0, 0);
- err |= set_utsfield(v->nodename, system_utsname.nodename, 1, 1);
+ err |= set_utsfield(v->nodename, utsname()->nodename, 1, 1);
err |= set_utsfield(v->release, "5.6", 0, 0);
err |= set_utsfield(v->version, "Generic", 0, 0);
err |= set_utsfield(v->machine, machine(), 0, 0);
@@ -305,7 +305,7 @@
case SI_HOSTNAME:
r = buffer + 256;
down_read(&uts_sem);
- for (p = system_utsname.nodename, q = buffer;
+ for (p = utsname()->nodename, q = buffer;
q < r && *p && *p != '.'; *q++ = *p++);
up_read(&uts_sem);
*q = 0;