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Commit 029a07e0 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

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: default avatarThomas Gleixner <tglx@linutronix.de>
parent a332d86d

kernel/compat.c

+7 −8
Original line number Diff line number Diff line
@@ -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;

}

kernel/hrtimer.c

+6 −7
Original line number Diff line number Diff line
@@ -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;

}