From b6e203d84da8298b903a0ebcad1a8170f3959b4f Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 16 Feb 2005 21:18:52 +0000 Subject: [PATCH] Use generic compat_sys_wait4 to implement 32-bit wait4(2). Signed-off-by: Ralf Baechle --- arch/mips/kernel/linux32.c | 73 +----------------------------------------- arch/mips/kernel/scall64-n32.S | 2 +- arch/mips/kernel/scall64-o32.S | 2 +- 3 files changed, 3 insertions(+), 74 deletions(-) diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index ece4564..dfb448c 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -215,81 +215,10 @@ sys32_readdir(unsigned int fd, void * dirent32, unsigned int count) return(n); } -struct rusage32 { - struct compat_timeval ru_utime; - struct compat_timeval ru_stime; - int ru_maxrss; - int ru_ixrss; - int ru_idrss; - int ru_isrss; - int ru_minflt; - int ru_majflt; - int ru_nswap; - int ru_inblock; - int ru_oublock; - int ru_msgsnd; - int ru_msgrcv; - int ru_nsignals; - int ru_nvcsw; - int ru_nivcsw; -}; - -static int -put_rusage (struct rusage32 *ru, struct rusage *r) -{ - int err; - - if (!access_ok(VERIFY_WRITE, ru, sizeof *ru)) - return -EFAULT; - - err = __put_user (r->ru_utime.tv_sec, &ru->ru_utime.tv_sec); - err |= __put_user (r->ru_utime.tv_usec, &ru->ru_utime.tv_usec); - err |= __put_user (r->ru_stime.tv_sec, &ru->ru_stime.tv_sec); - err |= __put_user (r->ru_stime.tv_usec, &ru->ru_stime.tv_usec); - err |= __put_user (r->ru_maxrss, &ru->ru_maxrss); - err |= __put_user (r->ru_ixrss, &ru->ru_ixrss); - err |= __put_user (r->ru_idrss, &ru->ru_idrss); - err |= __put_user (r->ru_isrss, &ru->ru_isrss); - err |= __put_user (r->ru_minflt, &ru->ru_minflt); - err |= __put_user (r->ru_majflt, &ru->ru_majflt); - err |= __put_user (r->ru_nswap, &ru->ru_nswap); - err |= __put_user (r->ru_inblock, &ru->ru_inblock); - err |= __put_user (r->ru_oublock, &ru->ru_oublock); - err |= __put_user (r->ru_msgsnd, &ru->ru_msgsnd); - err |= __put_user (r->ru_msgrcv, &ru->ru_msgrcv); - err |= __put_user (r->ru_nsignals, &ru->ru_nsignals); - err |= __put_user (r->ru_nvcsw, &ru->ru_nvcsw); - err |= __put_user (r->ru_nivcsw, &ru->ru_nivcsw); - - return err; -} - -asmlinkage int -sys32_wait4(compat_pid_t pid, unsigned int * stat_addr, int options, - struct rusage32 * ru) -{ - if (!ru) - return sys_wait4(pid, stat_addr, options, NULL); - else { - struct rusage r; - int ret; - unsigned int status; - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); - ret = sys_wait4(pid, stat_addr ? &status : NULL, options, &r); - set_fs(old_fs); - if (put_rusage (ru, &r)) return -EFAULT; - if (stat_addr && put_user (status, stat_addr)) - return -EFAULT; - return ret; - } -} - asmlinkage int sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options) { - return sys32_wait4(pid, stat_addr, options, NULL); + return compat_sys_wait4(pid, stat_addr, options, NULL); } struct sysinfo32 { diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index e52049c..3a56056 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -176,7 +176,7 @@ EXPORT(sysn32_call_table) PTR sys_fork PTR sys32_execve PTR sys_exit - PTR sys32_wait4 + PTR compat_sys_wait4 PTR sys_kill /* 6060 */ PTR sys32_newuname PTR sys_semget diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 739f3998..271b2cb 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -316,7 +316,7 @@ sys_call_table: PTR sys_vhangup PTR sys_ni_syscall /* was sys_idle */ PTR sys_ni_syscall /* sys_vm86 */ - PTR sys32_wait4 + PTR compat_sys_wait4 PTR sys_swapoff /* 4115 */ PTR sys32_sysinfo PTR sys32_ipc -- 2.7.4