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

Browse source 
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

[[email protected]: UML fix]
[[email protected]: cleanup]
[[email protected]: build fix]
Signed-off-by: Serge E. Hallyn <[email protected]>
Cc: Kirill Korotaev <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Herbert Poetzl <[email protected]>
Cc: Andrey Savochkin <[email protected]>
Signed-off-by: Cedric Le Goater <[email protected]>
Cc: Jeff Dike <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Serge E. Hallyn 2006-10-02 02:18:11 -07:00 • committed by Linus Torvalds
commit e9ff3990f0
35 changed files with 180 additions and 160 deletions
Download patch file Download diff file Expand all files Collapse all files

37
arch/parisc/hpux/sys_hpux.c
View file

@ -266,16 +266,21 @@ static int hpux_uname(struct hpux_utsname *name)
down_read(&uts_sem);
error = __copy_to_user(&name->sysname,&system_utsname.sysname,HPUX_UTSLEN-1);
error |= __put_user(0,name->sysname+HPUX_UTSLEN-1);
error |= __copy_to_user(&name->nodename,&system_utsname.nodename,HPUX_UTSLEN-1);
error |= __put_user(0,name->nodename+HPUX_UTSLEN-1);
error |= __copy_to_user(&name->release,&system_utsname.release,HPUX_UTSLEN-1);
error |= __put_user(0,name->release+HPUX_UTSLEN-1);
error |= __copy_to_user(&name->version,&system_utsname.version,HPUX_UTSLEN-1);
error |= __put_user(0,name->version+HPUX_UTSLEN-1);
error |= __copy_to_user(&name->machine,&system_utsname.machine,HPUX_UTSLEN-1);
error |= __put_user(0,name->machine+HPUX_UTSLEN-1);
error = __copy_to_user(&name->sysname, &utsname()->sysname,
HPUX_UTSLEN - 1);
error |= __put_user(0, name->sysname + HPUX_UTSLEN - 1);
error |= __copy_to_user(&name->nodename, &utsname()->nodename,
HPUX_UTSLEN - 1);
error |= __put_user(0, name->nodename + HPUX_UTSLEN - 1);
error |= __copy_to_user(&name->release, &utsname()->release,
HPUX_UTSLEN - 1);
error |= __put_user(0, name->release + HPUX_UTSLEN - 1);
error |= __copy_to_user(&name->version, &utsname()->version,
HPUX_UTSLEN - 1);
error |= __put_user(0, name->version + HPUX_UTSLEN - 1);
error |= __copy_to_user(&name->machine, &utsname()->machine,
HPUX_UTSLEN - 1);
error |= __put_user(0, name->machine + HPUX_UTSLEN - 1);
up_read(&uts_sem);
@ -373,8 +378,8 @@ int hpux_utssys(char *ubuf, int n, int type)
/* TODO: print a warning about using this? */
down_write(&uts_sem);
error = -EFAULT;
if (!copy_from_user(system_utsname.sysname, ubuf, len)) {
system_utsname.sysname[len] = 0;
if (!copy_from_user(utsname()->sysname, ubuf, len)) {
utsname()->sysname[len] = 0;
error = 0;
}
up_write(&uts_sem);
@ -400,8 +405,8 @@ int hpux_utssys(char *ubuf, int n, int type)
/* TODO: print a warning about this? */
down_write(&uts_sem);
error = -EFAULT;
if (!copy_from_user(system_utsname.release, ubuf, len)) {
system_utsname.release[len] = 0;
if (!copy_from_user(utsname()->release, ubuf, len)) {
utsname()->release[len] = 0;
error = 0;
}
up_write(&uts_sem);
@ -422,13 +427,13 @@ int hpux_getdomainname(char *name, int len)
down_read(&uts_sem);
nlen = strlen(system_utsname.domainname) + 1;
nlen = strlen(utsname()->domainname) + 1;
if (nlen < len)
len = nlen;
if(len > __NEW_UTS_LEN)
goto done;
if(copy_to_user(name, system_utsname.domainname, len))
if(copy_to_user(name, utsname()->domainname, len))
goto done;
err = 0;
done: