diff options
author | Arnd Bergmann <arnd@arndb.de> | 2019-10-25 17:59:39 +0300 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2019-11-15 16:38:30 +0300 |
commit | 4c22ea2b91203564fdf392b3d3cae249b652a8ae (patch) | |
tree | 0149546ee2e287ef6ecd227b8a3dcac4725b1a30 /arch/alpha | |
parent | c1745f84be2657f5702388133551b759b9237f59 (diff) | |
download | linux-4c22ea2b91203564fdf392b3d3cae249b652a8ae.tar.xz |
y2038: use compat_{get,set}_itimer on alpha
The itimer handling for the old alpha osf_setitimer/osf_getitimer
system calls is identical to the compat version of getitimer/setitimer,
so just use those directly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/alpha')
-rw-r--r-- | arch/alpha/kernel/osf_sys.c | 65 | ||||
-rw-r--r-- | arch/alpha/kernel/syscalls/syscall.tbl | 4 |
2 files changed, 2 insertions, 67 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index bbe7a0da6264..94e4cde8071a 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -971,30 +971,6 @@ put_tv_to_tv32(struct timeval32 __user *o, struct __kernel_old_timeval *i) sizeof(struct timeval32)); } -static inline long -get_it32(struct itimerval *o, struct itimerval32 __user *i) -{ - struct itimerval32 itv; - if (copy_from_user(&itv, i, sizeof(struct itimerval32))) - return -EFAULT; - o->it_interval.tv_sec = itv.it_interval.tv_sec; - o->it_interval.tv_usec = itv.it_interval.tv_usec; - o->it_value.tv_sec = itv.it_value.tv_sec; - o->it_value.tv_usec = itv.it_value.tv_usec; - return 0; -} - -static inline long -put_it32(struct itimerval32 __user *o, struct itimerval *i) -{ - return copy_to_user(o, &(struct itimerval32){ - .it_interval.tv_sec = o->it_interval.tv_sec, - .it_interval.tv_usec = o->it_interval.tv_usec, - .it_value.tv_sec = o->it_value.tv_sec, - .it_value.tv_usec = o->it_value.tv_usec}, - sizeof(struct itimerval32)); -} - static inline void jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value) { @@ -1039,47 +1015,6 @@ SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv, asmlinkage long sys_ni_posix_timers(void); -SYSCALL_DEFINE2(osf_getitimer, int, which, struct itimerval32 __user *, it) -{ - struct itimerval kit; - int error; - - if (!IS_ENABLED(CONFIG_POSIX_TIMERS)) - return sys_ni_posix_timers(); - - error = do_getitimer(which, &kit); - if (!error && put_it32(it, &kit)) - error = -EFAULT; - - return error; -} - -SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in, - struct itimerval32 __user *, out) -{ - struct itimerval kin, kout; - int error; - - if (!IS_ENABLED(CONFIG_POSIX_TIMERS)) - return sys_ni_posix_timers(); - - if (in) { - if (get_it32(&kin, in)) - return -EFAULT; - } else - memset(&kin, 0, sizeof(kin)); - - error = do_setitimer(which, &kin, out ? &kout : NULL); - if (error || !out) - return error; - - if (put_it32(out, &kout)) - return -EFAULT; - - return 0; - -} - SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, struct timeval32 __user *, tvs) { diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl index 728fe028c02c..8e13b0b2928d 100644 --- a/arch/alpha/kernel/syscalls/syscall.tbl +++ b/arch/alpha/kernel/syscalls/syscall.tbl @@ -89,10 +89,10 @@ 80 common setgroups sys_setgroups 81 common osf_old_getpgrp sys_ni_syscall 82 common setpgrp sys_setpgid -83 common osf_setitimer sys_osf_setitimer +83 common osf_setitimer compat_sys_setitimer 84 common osf_old_wait sys_ni_syscall 85 common osf_table sys_ni_syscall -86 common osf_getitimer sys_osf_getitimer +86 common osf_getitimer compat_sys_getitimer 87 common gethostname sys_gethostname 88 common sethostname sys_sethostname 89 common getdtablesize sys_getdtablesize |