From 54f2da755b7f0bf022ea204240cba824af4d80ad Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 16 Feb 2005 21:21:29 +0000 Subject: Implement 32-bit compatibility for waitid(2). Signed-off-by: Ralf Baechle --- arch/mips/kernel/signal32.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'arch/mips/kernel/signal32.c') diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index 8ddfbd8d425a..d50daee51fba 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -902,3 +902,30 @@ asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t *uinfo) set_fs (old_fs); return ret; } + +asmlinkage long +sys32_waitid(int which, compat_pid_t pid, + compat_siginfo_t __user *uinfo, int options, + struct compat_rusage __user *uru) +{ + siginfo_t info; + struct rusage ru; + long ret; + mm_segment_t old_fs = get_fs(); + + info.si_signo = 0; + set_fs (KERNEL_DS); + ret = sys_waitid(which, pid, (siginfo_t __user *) &info, options, + uru ? (struct rusage __user *) &ru : NULL); + set_fs (old_fs); + + if (ret < 0 || info.si_signo == 0) + return ret; + + if (uru && (ret = put_compat_rusage(&ru, uru))) + return ret; + + BUG_ON(info.si_code & __SI_MASK); + info.si_code |= __SI_CHLD; + return copy_siginfo_to_user32(uinfo, &info); +} -- cgit v1.2.3