summaryrefslogtreecommitdiff
path: root/arch/powerpc
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2010-03-11 02:21:21 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-13 02:52:32 +0300
commit5cacdb4add1b1e50fe75edc50ebbb7bddd9cf5e7 (patch)
treebd6595bb8c5c7e20ad01ed7ef766d873e5d26db3 /arch/powerpc
parente28cbf22933d0c0ccaf3c4c27a1a263b41f73859 (diff)
downloadlinux-5cacdb4add1b1e50fe75edc50ebbb7bddd9cf5e7.tar.xz
Add generic sys_olduname()
Add generic implementations of the old and really old uname system calls. Note that sh only implements sys_olduname but not sys_oldolduname, but I'm not going to bother with another ifdef for that special case. m32r implemented an old uname but never wired it up, so kill it, too. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/unistd.h1
-rw-r--r--arch/powerpc/kernel/syscalls.c57
2 files changed, 1 insertions, 57 deletions
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index c13821fe8741..f0a10266e7f7 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -377,6 +377,7 @@
#define __ARCH_WANT_SYS_LLSEEK
#define __ARCH_WANT_SYS_NICE
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLD_UNAME
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index 69d3c5d50a54..f2496f2faecc 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -116,63 +116,6 @@ long ppc64_personality(unsigned long personality)
}
#endif
-#ifdef CONFIG_PPC64
-#define OVERRIDE_MACHINE (personality(current->personality) == PER_LINUX32)
-#else
-#define OVERRIDE_MACHINE 0
-#endif
-
-static inline int override_machine(char __user *mach)
-{
- if (OVERRIDE_MACHINE) {
- /* change ppc64 to ppc */
- if (__put_user(0, mach+3) || __put_user(0, mach+4))
- return -EFAULT;
- }
- return 0;
-}
-
-int sys_uname(struct old_utsname __user *name)
-{
- int err = 0;
-
- down_read(&uts_sem);
- if (copy_to_user(name, utsname(), sizeof(*name)))
- err = -EFAULT;
- up_read(&uts_sem);
- if (!err)
- err = override_machine(name->machine);
- return err;
-}
-
-int sys_olduname(struct oldold_utsname __user *name)
-{
- int error;
-
- if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
- return -EFAULT;
-
- down_read(&uts_sem);
- 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, &utsname()->nodename,
- __OLD_UTS_LEN);
- error |= __put_user(0, name->nodename + __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, &utsname()->version,
- __OLD_UTS_LEN);
- error |= __put_user(0, name->version + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->machine, &utsname()->machine,
- __OLD_UTS_LEN);
- error |= override_machine(name->machine);
- up_read(&uts_sem);
-
- return error? -EFAULT: 0;
-}
-
long ppc_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
u32 len_high, u32 len_low)
{