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hrtimer: use nanosleep specific restart_block fields 

Convert all the nanosleep related users of restart_block to the
new nanosleep specific restart_block fields.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2008-02-10 09:17:43 +01:00
parent a332d86d3c
commit 029a07e031
2 changed files with 13 additions and 15 deletions
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15
kernel/compat.c
View File

@ -47,15 +47,14 @@ static long compat_nanosleep_restart(struct restart_block *restart)
mm_segment_t oldfs;
long ret;
rmtp = (struct compat_timespec __user *)(restart->arg1);
restart->arg1 = (unsigned long)&rmt;
restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
oldfs = get_fs();
set_fs(KERNEL_DS);
ret = hrtimer_nanosleep_restart(restart);
set_fs(oldfs);
if (ret) {
restart->arg1 = (unsigned long)rmtp;
rmtp = restart->nanosleep.compat_rmtp;
if (rmtp && put_compat_timespec(&rmt, rmtp))
return -EFAULT;
@ -89,7 +88,7 @@ asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
= &current_thread_info()->restart_block;
restart->fn = compat_nanosleep_restart;
restart->arg1 = (unsigned long)rmtp;
restart->nanosleep.compat_rmtp = rmtp;
if (rmtp && put_compat_timespec(&rmt, rmtp))
return -EFAULT;
@ -607,9 +606,9 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
long err;
mm_segment_t oldfs;
struct timespec tu;
struct compat_timespec *rmtp = (struct compat_timespec *)(restart->arg1);
struct compat_timespec *rmtp = restart->nanosleep.compat_rmtp;
restart->arg1 = (unsigned long) &tu;
restart->nanosleep.rmtp = (struct timespec __user *) &tu;
oldfs = get_fs();
set_fs(KERNEL_DS);
err = clock_nanosleep_restart(restart);
@ -621,7 +620,7 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
if (err == -ERESTART_RESTARTBLOCK) {
restart->fn = compat_clock_nanosleep_restart;
restart->arg1 = (unsigned long) rmtp;
restart->nanosleep.compat_rmtp = rmtp;
}
return err;
}
@ -652,7 +651,7 @@ long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
if (err == -ERESTART_RESTARTBLOCK) {
restart = &current_thread_info()->restart_block;
restart->fn = compat_clock_nanosleep_restart;
restart->arg1 = (unsigned long) rmtp;
restart->nanosleep.compat_rmtp = rmtp;
}
return err;
}

13
kernel/hrtimer.c
View File

@ -1354,13 +1354,13 @@ long __sched hrtimer_nanosleep_restart(struct restart_block *restart)
struct hrtimer_sleeper t;
struct timespec __user *rmtp;
hrtimer_init(&t.timer, restart->arg0, HRTIMER_MODE_ABS);
t.timer.expires.tv64 = ((u64)restart->arg3 << 32) | (u64) restart->arg2;
hrtimer_init(&t.timer, restart->nanosleep.index, HRTIMER_MODE_ABS);
t.timer.expires.tv64 = restart->nanosleep.expires;
if (do_nanosleep(&t, HRTIMER_MODE_ABS))
return 0;
rmtp = (struct timespec __user *)restart->arg1;
rmtp = restart->nanosleep.rmtp;
if (rmtp) {
int ret = update_rmtp(&t.timer, rmtp);
if (ret <= 0)
@ -1394,10 +1394,9 @@ long hrtimer_nanosleep(struct timespec *rqtp, struct timespec __user *rmtp,
restart = &current_thread_info()->restart_block;
restart->fn = hrtimer_nanosleep_restart;
restart->arg0 = (unsigned long) t.timer.base->index;
restart->arg1 = (unsigned long) rmtp;
restart->arg2 = t.timer.expires.tv64 & 0xFFFFFFFF;
restart->arg3 = t.timer.expires.tv64 >> 32;
restart->nanosleep.index = t.timer.base->index;
restart->nanosleep.rmtp = rmtp;
restart->nanosleep.expires = t.timer.expires.tv64;
return -ERESTART_RESTARTBLOCK;
}