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    SubjectRe: [RFC][PATCH 2/5] uts namespaces: Switch to using uts namespaces
    Serge,

    BTW, have you noticed that NFS is using utsname for internal processes
    and in general case this makes NFS ns to be coupled with uts ns?

    Kirill

    > Replace references to system_utsname to the per-process uts namespace
    > where appropriate. This includes things like uname.
    >
    > Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
    > ---
    > arch/alpha/kernel/osf_sys.c | 24 ++++++++++++------------
    > arch/i386/kernel/sys_i386.c | 12 ++++++------
    > arch/ia64/sn/kernel/sn2/sn_hwperf.c | 2 +-
    > arch/m32r/kernel/sys_m32r.c | 2 +-
    > arch/mips/kernel/linux32.c | 2 +-
    > arch/mips/kernel/syscall.c | 18 +++++++++---------
    > arch/mips/kernel/sysirix.c | 12 ++++++------
    > arch/parisc/hpux/sys_hpux.c | 22 +++++++++++-----------
    > arch/powerpc/kernel/syscalls.c | 14 +++++++-------
    > arch/sh/kernel/sys_sh.c | 2 +-
    > arch/sh64/kernel/sys_sh64.c | 2 +-
    > arch/sparc/kernel/sys_sparc.c | 4 ++--
    > arch/sparc/kernel/sys_sunos.c | 10 +++++-----
    > arch/sparc64/kernel/sys_sparc.c | 4 ++--
    > arch/sparc64/kernel/sys_sunos32.c | 10 +++++-----
    > arch/sparc64/solaris/misc.c | 6 +++---
    > arch/um/drivers/mconsole_kern.c | 6 +++---
    > arch/um/kernel/syscall_kern.c | 12 ++++++------
    > arch/um/sys-x86_64/syscalls.c | 2 +-
    > arch/x86_64/ia32/sys_ia32.c | 10 +++++-----
    > arch/x86_64/kernel/sys_x86_64.c | 2 +-
    > arch/xtensa/kernel/syscalls.c | 2 +-
    > drivers/char/random.c | 4 ++--
    > fs/cifs/connect.c | 28 ++++++++++++++--------------
    > fs/exec.c | 2 +-
    > fs/lockd/clntproc.c | 4 ++--
    > fs/lockd/mon.c | 2 +-
    > fs/lockd/svclock.c | 2 +-
    > fs/lockd/xdr.c | 2 +-
    > fs/nfs/nfsroot.c | 2 +-
    > include/linux/lockd/lockd.h | 2 +-
    > kernel/sys.c | 14 +++++++-------
    > 32 files changed, 121 insertions(+), 121 deletions(-)
    >
    > 92a8cf13a78415ed5ec9068698b5039ddcc00210
    > diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
    > index 31afe3d..b793b96 100644
    > --- a/arch/alpha/kernel/osf_sys.c
    > +++ b/arch/alpha/kernel/osf_sys.c
    > @@ -402,15 +402,15 @@ osf_utsname(char __user *name)
    >
    > down_read(&uts_sem);
    > error = -EFAULT;
    > - if (copy_to_user(name + 0, system_utsname.sysname, 32))
    > + if (copy_to_user(name + 0, utsname()->sysname, 32))
    > goto out;
    > - if (copy_to_user(name + 32, system_utsname.nodename, 32))
    > + if (copy_to_user(name + 32, utsname()->nodename, 32))
    > goto out;
    > - if (copy_to_user(name + 64, system_utsname.release, 32))
    > + if (copy_to_user(name + 64, utsname()->release, 32))
    > goto out;
    > - if (copy_to_user(name + 96, system_utsname.version, 32))
    > + if (copy_to_user(name + 96, utsname()->version, 32))
    > goto out;
    > - if (copy_to_user(name + 128, system_utsname.machine, 32))
    > + if (copy_to_user(name + 128, utsname()->machine, 32))
    > goto out;
    >
    > error = 0;
    > @@ -449,8 +449,8 @@ osf_getdomainname(char __user *name, int
    >
    > down_read(&uts_sem);
    > for (i = 0; i < len; ++i) {
    > - __put_user(system_utsname.domainname[i], name + i);
    > - if (system_utsname.domainname[i] == '\0')
    > + __put_user(utsname()->domainname[i], name + i);
    > + if (utsname()->domainname[i] == '\0')
    > break;
    > }
    > up_read(&uts_sem);
    > @@ -608,11 +608,11 @@ asmlinkage long
    > osf_sysinfo(int command, char __user *buf, long count)
    > {
    > static char * sysinfo_table[] = {
    > - system_utsname.sysname,
    > - system_utsname.nodename,
    > - system_utsname.release,
    > - system_utsname.version,
    > - system_utsname.machine,
    > + utsname()->sysname,
    > + utsname()->nodename,
    > + utsname()->release,
    > + utsname()->version,
    > + utsname()->machine,
    > "alpha", /* instruction set architecture */
    > "dummy", /* hardware serial number */
    > "dummy", /* hardware manufacturer */
    > diff --git a/arch/i386/kernel/sys_i386.c b/arch/i386/kernel/sys_i386.c
    > index 8fdb1fb..4af731d 100644
    > --- a/arch/i386/kernel/sys_i386.c
    > +++ b/arch/i386/kernel/sys_i386.c
    > @@ -210,7 +210,7 @@ asmlinkage int sys_uname(struct old_utsn
    > 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);
    > return err?-EFAULT:0;
    > }
    > @@ -226,15 +226,15 @@ asmlinkage int sys_olduname(struct oldol
    >
    > down_read(&uts_sem);
    >
    > - error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
    > + 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,__OLD_UTS_LEN);
    > + 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,__OLD_UTS_LEN);
    > + 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,__OLD_UTS_LEN);
    > + 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,__OLD_UTS_LEN);
    > + error |= __copy_to_user(&name->machine,&utsname()->machine,__OLD_UTS_LEN);
    > error |= __put_user(0,name->machine+__OLD_UTS_LEN);
    >
    > up_read(&uts_sem);
    > diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
    > index d917afa..a0632a9 100644
    > --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
    > +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
    > @@ -420,7 +420,7 @@ static int sn_topology_show(struct seq_f
    > "coherency_domain %d, "
    > "region_size %d\n",
    >
    > - partid, system_utsname.nodename,
    > + partid, utsname()->nodename,
    > shubtype ? "shub2" : "shub1",
    > (u64)nasid_mask << nasid_shift, nasid_msb, nasid_shift,
    > system_size, sharing_size, coher, region_size);
    > diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
    > index 670cb49..11412c0 100644
    > --- a/arch/m32r/kernel/sys_m32r.c
    > +++ b/arch/m32r/kernel/sys_m32r.c
    > @@ -206,7 +206,7 @@ asmlinkage int sys_uname(struct old_utsn
    > 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);
    > return err?-EFAULT:0;
    > }
    > diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
    > index 3f40c37..b9b702f 100644
    > --- a/arch/mips/kernel/linux32.c
    > +++ b/arch/mips/kernel/linux32.c
    > @@ -1100,7 +1100,7 @@ asmlinkage long sys32_newuname(struct ne
    > int ret = 0;
    >
    > down_read(&uts_sem);
    > - if (copy_to_user(name,&system_utsname,sizeof *name))
    > + if (copy_to_user(name,utsname(),sizeof *name))
    > ret = -EFAULT;
    > up_read(&uts_sem);
    >
    > diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
    > index 2aeaa2f..8b13d57 100644
    > --- a/arch/mips/kernel/syscall.c
    > +++ b/arch/mips/kernel/syscall.c
    > @@ -232,7 +232,7 @@ out:
    > */
    > asmlinkage int sys_uname(struct old_utsname __user * name)
    > {
    > - if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
    > + if (name && !copy_to_user(name, utsname(), sizeof (*name)))
    > return 0;
    > return -EFAULT;
    > }
    > @@ -249,15 +249,15 @@ asmlinkage int sys_olduname(struct oldol
    > if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
    > return -EFAULT;
    >
    > - error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
    > + 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,__OLD_UTS_LEN);
    > + 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,__OLD_UTS_LEN);
    > + 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,__OLD_UTS_LEN);
    > + 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,__OLD_UTS_LEN);
    > + error -= __copy_to_user(&name->machine,&utsname()->machine,__OLD_UTS_LEN);
    > error = __put_user(0,name->machine+__OLD_UTS_LEN);
    > error = error ? -EFAULT : 0;
    >
    > @@ -293,10 +293,10 @@ asmlinkage int _sys_sysmips(int cmd, lon
    > return -EFAULT;
    >
    > down_write(&uts_sem);
    > - strncpy(system_utsname.nodename, nodename, len);
    > + strncpy(utsname()->nodename, nodename, len);
    > nodename[__NEW_UTS_LEN] = '\0';
    > - strlcpy(system_utsname.nodename, nodename,
    > - sizeof(system_utsname.nodename));
    > + strlcpy(utsname()->nodename, nodename,
    > + sizeof(utsname()->nodename));
    > up_write(&uts_sem);
    > return 0;
    > }
    > diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
    > index 5407b78..1b4e7e7 100644
    > --- a/arch/mips/kernel/sysirix.c
    > +++ b/arch/mips/kernel/sysirix.c
    > @@ -884,7 +884,7 @@ asmlinkage int irix_getdomainname(char _
    > 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);
    > diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
    > index 05273cc..9fc2c08 100644
    > --- a/arch/parisc/hpux/sys_hpux.c
    > +++ b/arch/parisc/hpux/sys_hpux.c
    > @@ -266,15 +266,15 @@ static int hpux_uname(struct hpux_utsnam
    >
    > down_read(&uts_sem);
    >
    > - error = __copy_to_user(&name->sysname,&system_utsname.sysname,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,&system_utsname.nodename,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,&system_utsname.release,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,&system_utsname.version,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,&system_utsname.machine,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 +373,8 @@ int hpux_utssys(char *ubuf, int n, int t
    > /* 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 +400,8 @@ int hpux_utssys(char *ubuf, int n, int t
    > /* 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 +422,13 @@ int hpux_getdomainname(char *name, int l
    >
    > 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:
    > diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
    > index 9b69d99..d358866 100644
    > --- a/arch/powerpc/kernel/syscalls.c
    > +++ b/arch/powerpc/kernel/syscalls.c
    > @@ -260,7 +260,7 @@ long ppc_newuname(struct new_utsname __u
    > 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
    > 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 _
    > 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);
    > diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
    > index 917b2f3..e4966b2 100644
    > --- a/arch/sh/kernel/sys_sh.c
    > +++ b/arch/sh/kernel/sys_sh.c
    > @@ -267,7 +267,7 @@ asmlinkage int sys_uname(struct old_utsn
    > 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);
    > return err?-EFAULT:0;
    > }
    > diff --git a/arch/sh64/kernel/sys_sh64.c b/arch/sh64/kernel/sys_sh64.c
    > index 58ff7d5..a8dc88c 100644
    > --- a/arch/sh64/kernel/sys_sh64.c
    > +++ b/arch/sh64/kernel/sys_sh64.c
    > @@ -279,7 +279,7 @@ asmlinkage int sys_uname(struct old_utsn
    > 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);
    > return err?-EFAULT:0;
    > }
    > diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
    > index 0cdfc9d..c8ad73c 100644
    > --- a/arch/sparc/kernel/sys_sparc.c
    > +++ b/arch/sparc/kernel/sys_sparc.c
    > @@ -470,13 +470,13 @@ asmlinkage int sys_getdomainname(char __
    >
    > 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:
    > diff --git a/arch/sparc/kernel/sys_sunos.c b/arch/sparc/kernel/sys_sunos.c
    > index 288de27..9f9206f 100644
    > --- a/arch/sparc/kernel/sys_sunos.c
    > +++ b/arch/sparc/kernel/sys_sunos.c
    > @@ -483,13 +483,13 @@ asmlinkage int sunos_uname(struct sunos_
    > {
    > int ret;
    > down_read(&uts_sem);
    > - ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0], sizeof(name->sname) - 1);
    > + ret = copy_to_user(&name->sname[0], &utsname()->sysname[0], sizeof(name->sname) - 1);
    > if (!ret) {
    > - ret |= __copy_to_user(&name->nname[0], &system_utsname.nodename[0], sizeof(name->nname) - 1);
    > + 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], sizeof(name->rel) - 1);
    > - ret |= __copy_to_user(&name->ver[0], &system_utsname.version[0], sizeof(name->ver) - 1);
    > - ret |= __copy_to_user(&name->mach[0], &system_utsname.machine[0], sizeof(name->mach) - 1);
    > + ret |= __copy_to_user(&name->rel[0], &utsname()->release[0], sizeof(name->rel) - 1);
    > + ret |= __copy_to_user(&name->ver[0], &utsname()->version[0], sizeof(name->ver) - 1);
    > + 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/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c
    > index 7a86913..0453bd2 100644
    > --- a/arch/sparc64/kernel/sys_sparc.c
    > +++ b/arch/sparc64/kernel/sys_sparc.c
    > @@ -707,13 +707,13 @@ asmlinkage long sys_getdomainname(char _
    >
    > 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:
    > diff --git a/arch/sparc64/kernel/sys_sunos32.c b/arch/sparc64/kernel/sys_sunos32.c
    > index ae5b32f..ba98c47 100644
    > --- a/arch/sparc64/kernel/sys_sunos32.c
    > +++ b/arch/sparc64/kernel/sys_sunos32.c
    > @@ -439,16 +439,16 @@ asmlinkage int sunos_uname(struct sunos_
    > 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 5284996..5d0162a 100644
    > --- a/arch/sparc64/solaris/misc.c
    > +++ b/arch/sparc64/solaris/misc.c
    > @@ -239,7 +239,7 @@ asmlinkage int solaris_utssys(u32 buf, u
    > /* 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);
    > @@ -263,7 +263,7 @@ asmlinkage int solaris_utsname(u32 buf)
    > /* 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);
    > @@ -295,7 +295,7 @@ asmlinkage int solaris_sysinfo(int cmd,
    > 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;
    > diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
    > index 28e3760..5f87323 100644
    > --- a/arch/um/drivers/mconsole_kern.c
    > +++ b/arch/um/drivers/mconsole_kern.c
    > @@ -106,9 +106,9 @@ void mconsole_version(struct mc_request
    > {
    > char version[256];
    >
    > - sprintf(version, "%s %s %s %s %s", system_utsname.sysname,
    > - system_utsname.nodename, system_utsname.release,
    > - system_utsname.version, system_utsname.machine);
    > + sprintf(version, "%s %s %s %s %s", utsname()->sysname,
    > + utsname()->nodename, utsname()->release,
    > + utsname()->version, utsname()->machine);
    > mconsole_reply(req, version, 0, 0);
    > }
    >
    > diff --git a/arch/um/kernel/syscall_kern.c b/arch/um/kernel/syscall_kern.c
    > index 37d3978..d90e9ed 100644
    > --- a/arch/um/kernel/syscall_kern.c
    > +++ b/arch/um/kernel/syscall_kern.c
    > @@ -110,7 +110,7 @@ long sys_uname(struct old_utsname __user
    > 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);
    > return err?-EFAULT:0;
    > }
    > @@ -126,19 +126,19 @@ long sys_olduname(struct oldold_utsname
    >
    > 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 |= __put_user(0,name->machine+__OLD_UTS_LEN);
    >
    > diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c
    > index 6acee5c..3ad014e 100644
    > --- a/arch/um/sys-x86_64/syscalls.c
    > +++ b/arch/um/sys-x86_64/syscalls.c
    > @@ -21,7 +21,7 @@ asmlinkage long sys_uname64(struct new_u
    > {
    > 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);
    > diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
    > index f182b20..6e0a19d 100644
    > --- a/arch/x86_64/ia32/sys_ia32.c
    > +++ b/arch/x86_64/ia32/sys_ia32.c
    > @@ -801,13 +801,13 @@ asmlinkage long sys32_olduname(struct ol
    >
    > down_read(&uts_sem);
    >
    > - error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
    > + error = __copy_to_user(&name->sysname,&utsname()->sysname,__OLD_UTS_LEN);
    > __put_user(0,name->sysname+__OLD_UTS_LEN);
    > - __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
    > + __copy_to_user(&name->nodename,&utsname()->nodename,__OLD_UTS_LEN);
    > __put_user(0,name->nodename+__OLD_UTS_LEN);
    > - __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
    > + __copy_to_user(&name->release,&utsname()->release,__OLD_UTS_LEN);
    > __put_user(0,name->release+__OLD_UTS_LEN);
    > - __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
    > + __copy_to_user(&name->version,&utsname()->version,__OLD_UTS_LEN);
    > __put_user(0,name->version+__OLD_UTS_LEN);
    > {
    > char *arch = "x86_64";
    > @@ -830,7 +830,7 @@ long sys32_uname(struct old_utsname __us
    > 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 @@ asmlinkage long sys_uname(struct new_uts
    > {
    > 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);
    > diff --git a/arch/xtensa/kernel/syscalls.c b/arch/xtensa/kernel/syscalls.c
    > index f20c649..30060c1 100644
    > --- a/arch/xtensa/kernel/syscalls.c
    > +++ b/arch/xtensa/kernel/syscalls.c
    > @@ -129,7 +129,7 @@ out:
    >
    > int sys_uname(struct old_utsname * name)
    > {
    > - if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
    > + if (name && !copy_to_user(name, utsname(), sizeof (*name)))
    > return 0;
    > return -EFAULT;
    > }
    > diff --git a/drivers/char/random.c b/drivers/char/random.c
    > index 86be04b..ec4c11d 100644
    > --- a/drivers/char/random.c
    > +++ b/drivers/char/random.c
    > @@ -888,8 +888,8 @@ static void init_std_data(struct entropy
    >
    > do_gettimeofday(&tv);
    > add_entropy_words(r, (__u32 *)&tv, sizeof(tv)/4);
    > - add_entropy_words(r, (__u32 *)&system_utsname,
    > - sizeof(system_utsname)/4);
    > + add_entropy_words(r, (__u32 *)utsname(),
    > + sizeof(*(utsname()))/4);
    > }
    >
    > static int __init rand_initialize(void)
    > diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
    > index 0b86d5c..852ff41 100644
    > --- a/fs/cifs/connect.c
    > +++ b/fs/cifs/connect.c
    > @@ -765,12 +765,12 @@ cifs_parse_mount_options(char *options,
    > separator[1] = 0;
    >
    > memset(vol->source_rfc1001_name,0x20,15);
    > - for(i=0;i < strnlen(system_utsname.nodename,15);i++) {
    > + for(i=0;i < strnlen(utsname()->nodename,15);i++) {
    > /* does not have to be a perfect mapping since the field is
    > informational, only used for servers that do not support
    > port 445 and it can be overridden at mount time */
    > vol->source_rfc1001_name[i] =
    > - toupper(system_utsname.nodename[i]);
    > + toupper(utsname()->nodename[i]);
    > }
    > vol->source_rfc1001_name[15] = 0;
    > /* null target name indicates to use *SMBSERVR default called name
    > @@ -2077,7 +2077,7 @@ CIFSSessSetup(unsigned int xid, struct c
    > 32, nls_codepage);
    > bcc_ptr += 2 * bytes_returned;
    > bytes_returned =
    > - cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release,
    > + cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release,
    > 32, nls_codepage);
    > bcc_ptr += 2 * bytes_returned;
    > bcc_ptr += 2;
    > @@ -2104,8 +2104,8 @@ CIFSSessSetup(unsigned int xid, struct c
    > }
    > strcpy(bcc_ptr, "Linux version ");
    > bcc_ptr += strlen("Linux version ");
    > - strcpy(bcc_ptr, system_utsname.release);
    > - bcc_ptr += strlen(system_utsname.release) + 1;
    > + strcpy(bcc_ptr, utsname()->release);
    > + bcc_ptr += strlen(utsname()->release) + 1;
    > strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
    > bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
    > }
    > @@ -2346,7 +2346,7 @@ CIFSSpnegoSessSetup(unsigned int xid, st
    > 32, nls_codepage);
    > bcc_ptr += 2 * bytes_returned;
    > bytes_returned =
    > - cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32,
    > + cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32,
    > nls_codepage);
    > bcc_ptr += 2 * bytes_returned;
    > bcc_ptr += 2;
    > @@ -2371,8 +2371,8 @@ CIFSSpnegoSessSetup(unsigned int xid, st
    > }
    > strcpy(bcc_ptr, "Linux version ");
    > bcc_ptr += strlen("Linux version ");
    > - strcpy(bcc_ptr, system_utsname.release);
    > - bcc_ptr += strlen(system_utsname.release) + 1;
    > + strcpy(bcc_ptr, utsname()->release);
    > + bcc_ptr += strlen(utsname()->release) + 1;
    > strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
    > bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
    > }
    > @@ -2622,7 +2622,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned i
    > 32, nls_codepage);
    > bcc_ptr += 2 * bytes_returned;
    > bytes_returned =
    > - cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32,
    > + cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32,
    > nls_codepage);
    > bcc_ptr += 2 * bytes_returned;
    > bcc_ptr += 2; /* null terminate Linux version */
    > @@ -2639,8 +2639,8 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned i
    > } else { /* ASCII */
    > strcpy(bcc_ptr, "Linux version ");
    > bcc_ptr += strlen("Linux version ");
    > - strcpy(bcc_ptr, system_utsname.release);
    > - bcc_ptr += strlen(system_utsname.release) + 1;
    > + strcpy(bcc_ptr, utsname()->release);
    > + bcc_ptr += strlen(utsname()->release) + 1;
    > strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
    > bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
    > bcc_ptr++; /* empty domain field */
    > @@ -3001,7 +3001,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xi
    > 32, nls_codepage);
    > bcc_ptr += 2 * bytes_returned;
    > bytes_returned =
    > - cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32,
    > + cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32,
    > nls_codepage);
    > bcc_ptr += 2 * bytes_returned;
    > bcc_ptr += 2; /* null term version string */
    > @@ -3053,8 +3053,8 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xi
    >
    > strcpy(bcc_ptr, "Linux version ");
    > bcc_ptr += strlen("Linux version ");
    > - strcpy(bcc_ptr, system_utsname.release);
    > - bcc_ptr += strlen(system_utsname.release) + 1;
    > + strcpy(bcc_ptr, utsname()->release);
    > + bcc_ptr += strlen(utsname()->release) + 1;
    > strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
    > bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
    > bcc_ptr++; /* null domain */
    > diff --git a/fs/exec.c b/fs/exec.c
    > index 0291a68..d881479 100644
    > --- a/fs/exec.c
    > +++ b/fs/exec.c
    > @@ -1347,7 +1347,7 @@ static void format_corename(char *corena
    > case 'h':
    > down_read(&uts_sem);
    > rc = snprintf(out_ptr, out_end - out_ptr,
    > - "%s", system_utsname.nodename);
    > + "%s", utsname()->nodename);
    > up_read(&uts_sem);
    > if (rc > out_end - out_ptr)
    > goto out;
    > diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
    > index f96e381..915e596 100644
    > --- a/fs/lockd/clntproc.c
    > +++ b/fs/lockd/clntproc.c
    > @@ -130,11 +130,11 @@ static void nlmclnt_setlockargs(struct n
    > nlmclnt_next_cookie(&argp->cookie);
    > argp->state = nsm_local_state;
    > memcpy(&lock->fh, NFS_FH(fl->fl_file->f_dentry->d_inode), sizeof(struct nfs_fh));
    > - lock->caller = system_utsname.nodename;
    > + lock->caller = utsname()->nodename;
    > lock->oh.data = req->a_owner;
    > lock->oh.len = snprintf(req->a_owner, sizeof(req->a_owner), "%u@%s",
    > (unsigned int)fl->fl_u.nfs_fl.owner->pid,
    > - system_utsname.nodename);
    > + utsname()->nodename);
    > lock->svid = fl->fl_u.nfs_fl.owner->pid;
    > lock->fl.fl_start = fl->fl_start;
    > lock->fl.fl_end = fl->fl_end;
    > diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
    > index 3fc683f..547aaa3 100644
    > --- a/fs/lockd/mon.c
    > +++ b/fs/lockd/mon.c
    > @@ -152,7 +152,7 @@ xdr_encode_common(struct rpc_rqst *rqstp
    > */
    > sprintf(buffer, "%u.%u.%u.%u", NIPQUAD(argp->addr));
    > if (!(p = xdr_encode_string(p, buffer))
    > - || !(p = xdr_encode_string(p, system_utsname.nodename)))
    > + || !(p = xdr_encode_string(p, utsname()->nodename)))
    > return ERR_PTR(-EIO);
    > *p++ = htonl(argp->prog);
    > *p++ = htonl(argp->vers);
    > diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
    > index d2b66ba..61b4791 100644
    > --- a/fs/lockd/svclock.c
    > +++ b/fs/lockd/svclock.c
    > @@ -326,7 +326,7 @@ static int nlmsvc_setgrantargs(struct nl
    > {
    > locks_copy_lock(&call->a_args.lock.fl, &lock->fl);
    > memcpy(&call->a_args.lock.fh, &lock->fh, sizeof(call->a_args.lock.fh));
    > - call->a_args.lock.caller = system_utsname.nodename;
    > + call->a_args.lock.caller = utsname()->nodename;
    > call->a_args.lock.oh.len = lock->oh.len;
    >
    > /* set default data area */
    > diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
    > index f22a376..4eec051 100644
    > --- a/fs/lockd/xdr.c
    > +++ b/fs/lockd/xdr.c
    > @@ -516,7 +516,7 @@ nlmclt_decode_res(struct rpc_rqst *req,
    > */
    > #define NLM_void_sz 0
    > #define NLM_cookie_sz 1+XDR_QUADLEN(NLM_MAXCOOKIELEN)
    > -#define NLM_caller_sz 1+XDR_QUADLEN(sizeof(system_utsname.nodename))
    > +#define NLM_caller_sz 1+XDR_QUADLEN(sizeof(utsname()->nodename))
    > #define NLM_netobj_sz 1+XDR_QUADLEN(XDR_MAX_NETOBJ)
    > /* #define NLM_owner_sz 1+XDR_QUADLEN(NLM_MAXOWNER) */
    > #define NLM_fhandle_sz 1+XDR_QUADLEN(NFS2_FHSIZE)
    > diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
    > index c0a754e..1d656a6 100644
    > --- a/fs/nfs/nfsroot.c
    > +++ b/fs/nfs/nfsroot.c
    > @@ -312,7 +312,7 @@ static int __init root_nfs_name(char *na
    > /* Override them by options set on kernel command-line */
    > root_nfs_parse(name, buf);
    >
    > - cp = system_utsname.nodename;
    > + cp = utsname()->nodename;
    > if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) {
    > printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
    > return -1;
    > diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
    > index 995f89d..ac15b87 100644
    > --- a/include/linux/lockd/lockd.h
    > +++ b/include/linux/lockd/lockd.h
    > @@ -80,7 +80,7 @@ struct nlm_wait;
    > /*
    > * Memory chunk for NLM client RPC request.
    > */
    > -#define NLMCLNT_OHSIZE (sizeof(system_utsname.nodename)+10)
    > +#define NLMCLNT_OHSIZE (sizeof(utsname()->nodename)+10)
    > struct nlm_rqst {
    > unsigned int a_flags; /* initial RPC task flags */
    > struct nlm_host * a_host; /* host handle */
    > diff --git a/kernel/sys.c b/kernel/sys.c
    > index 0b6ec0e..bcaa48e 100644
    > --- a/kernel/sys.c
    > +++ b/kernel/sys.c
    > @@ -1671,7 +1671,7 @@ asmlinkage long sys_newuname(struct new_
    > int errno = 0;
    >
    > down_read(&uts_sem);
    > - if (copy_to_user(name,&system_utsname,sizeof *name))
    > + if (copy_to_user(name,utsname(),sizeof *name))
    > errno = -EFAULT;
    > up_read(&uts_sem);
    > return errno;
    > @@ -1689,8 +1689,8 @@ asmlinkage long sys_sethostname(char __u
    > down_write(&uts_sem);
    > errno = -EFAULT;
    > if (!copy_from_user(tmp, name, len)) {
    > - memcpy(system_utsname.nodename, tmp, len);
    > - system_utsname.nodename[len] = 0;
    > + memcpy(utsname()->nodename, tmp, len);
    > + utsname()->nodename[len] = 0;
    > errno = 0;
    > }
    > up_write(&uts_sem);
    > @@ -1706,11 +1706,11 @@ asmlinkage long sys_gethostname(char __u
    > if (len < 0)
    > return -EINVAL;
    > down_read(&uts_sem);
    > - i = 1 + strlen(system_utsname.nodename);
    > + i = 1 + strlen(utsname()->nodename);
    > if (i > len)
    > i = len;
    > errno = 0;
    > - if (copy_to_user(name, system_utsname.nodename, i))
    > + if (copy_to_user(name, utsname()->nodename, i))
    > errno = -EFAULT;
    > up_read(&uts_sem);
    > return errno;
    > @@ -1735,8 +1735,8 @@ asmlinkage long sys_setdomainname(char _
    > down_write(&uts_sem);
    > errno = -EFAULT;
    > if (!copy_from_user(tmp, name, len)) {
    > - memcpy(system_utsname.domainname, tmp, len);
    > - system_utsname.domainname[len] = 0;
    > + memcpy(utsname()->domainname, tmp, len);
    > + utsname()->domainname[len] = 0;
    > errno = 0;
    > }
    > up_write(&uts_sem);


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