From: blaisorblade@yahoo.it
To: torvalds@osdl.org
Cc: akpm@osdl.org, linux-kernel@vger.kernel.org,
blaisorblade@yahoo.it, ak@suse.de
Subject: [patch 2/3] x86_64: remove duplicated sys_time64
Date: Wed, 30 Mar 2005 19:32:16 +0200 [thread overview]
Message-ID: <20050330173216.426CFEFECF@zion> (raw)
CC: Andi Kleen <ak@suse.de>
Keeping this function does not makes sense because it's a copied (and buggy)
copy of sys_time. The only difference is that now.tv_sec (which is a time_t,
i.e. a 64-bit long) is copied (and truncated) into a int (32-bit).
The prototype is the same (they both take a long __user *), so let's drop this
and redirect it to sys_time (and make sure it exists by defining
__ARCH_WANT_SYS_TIME).
Only disadvantage is that the sys_stime definition is also compiled (may be
fixed if needed by adding a separate __ARCH_WANT_SYS_STIME macro, and defining
it for all arch's defining __ARCH_WANT_SYS_TIME except x86_64).
Not compile-tested, sorry.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
---
linux-2.6.11-paolo/arch/x86_64/kernel/sys_x86_64.c | 14 --------------
linux-2.6.11-paolo/include/asm-x86_64/unistd.h | 3 ++-
2 files changed, 2 insertions(+), 15 deletions(-)
diff -puN include/asm-x86_64/unistd.h~x86_64-remove-sys-time-x86-64 include/asm-x86_64/unistd.h
--- linux-2.6.11/include/asm-x86_64/unistd.h~x86_64-remove-sys-time-x86-64 2005-03-29 17:39:38.000000000 +0200
+++ linux-2.6.11-paolo/include/asm-x86_64/unistd.h 2005-03-29 17:47:36.000000000 +0200
@@ -462,7 +462,7 @@ __SYSCALL(__NR_fremovexattr, sys_fremove
#define __NR_tkill 200
__SYSCALL(__NR_tkill, sys_tkill)
#define __NR_time 201
-__SYSCALL(__NR_time, sys_time64)
+__SYSCALL(__NR_time, sys_time)
#define __NR_futex 202
__SYSCALL(__NR_futex, sys_futex)
#define __NR_sched_setaffinity 203
@@ -600,6 +600,7 @@ do { \
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_TIME
#define __ARCH_WANT_COMPAT_SYS_TIME
#endif
diff -puN arch/x86_64/kernel/sys_x86_64.c~x86_64-remove-sys-time-x86-64 arch/x86_64/kernel/sys_x86_64.c
--- linux-2.6.11/arch/x86_64/kernel/sys_x86_64.c~x86_64-remove-sys-time-x86-64 2005-03-29 17:39:38.000000000 +0200
+++ linux-2.6.11-paolo/arch/x86_64/kernel/sys_x86_64.c 2005-03-29 17:40:30.000000000 +0200
@@ -158,17 +158,3 @@ asmlinkage long wrap_sys_shmat(int shmid
unsigned long raddr;
return do_shmat(shmid,shmaddr,shmflg,&raddr) ?: (long)raddr;
}
-
-asmlinkage long sys_time64(long __user * tloc)
-{
- struct timeval now;
- int i;
-
- do_gettimeofday(&now);
- i = now.tv_sec;
- if (tloc) {
- if (put_user(i,tloc))
- i = -EFAULT;
- }
- return i;
-}
_
next reply other threads:[~2005-03-30 18:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-30 17:32 blaisorblade [this message]
2005-03-31 10:38 ` [patch 2/3] x86_64: remove duplicated sys_time64 Andi Kleen
2005-03-31 11:10 ` Stephen Rothwell
2005-03-31 11:12 ` Andi Kleen
2005-03-31 11:25 ` Stephen Rothwell
2005-03-31 11:36 ` Andi Kleen
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