diff options
| author | Christoph Hellwig <hch@lst.de> | 2010-03-10 15:21:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-12 15:52:32 -0800 |
| commit | e28cbf22933d0c0ccaf3c4c27a1a263b41f73859 (patch) | |
| tree | a93ff48cfd97766a23b2c4f3ea86fccfc9c51d3f /arch/mips/kernel/linux32.c | |
| parent | baed7fc9b580bd3fb8252ff1d9b36eaf1f86b670 (diff) | |
improve sys_newuname() for compat architectures
On an architecture that supports 32-bit compat we need to override the
reported machine in uname with the 32-bit value. Instead of doing this
separately in every architecture introduce a COMPAT_UTS_MACHINE define in
<asm/compat.h> and apply it directly in sys_newuname().
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/mips/kernel/linux32.c')
| -rw-r--r-- | arch/mips/kernel/linux32.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index bde79ef602e..a39d0597a37 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -249,22 +249,6 @@ SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz, } #endif -SYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name) -{ - int ret = 0; - - down_read(&uts_sem); - if (copy_to_user(name, utsname(), sizeof *name)) - ret = -EFAULT; - up_read(&uts_sem); - - if (current->personality == PER_LINUX32 && !ret) - if (copy_to_user(name->machine, "mips\0\0\0", 8)) - ret = -EFAULT; - - return ret; -} - SYSCALL_DEFINE1(32_personality, unsigned long, personality) { int ret; |