Commit 74ba181e authored by Nicolas Pitre's avatar Nicolas Pitre Committed by Thomas Gleixner
Browse files

timer: Move sys_alarm from timer.c to itimer.c 



Move the only user of alarm_setitimer to itimer.c where it is defined.
This allows for making alarm_setitimer static, and dropping it from the
build when __ARCH_WANT_SYS_ALARM is not defined.

Signed-off-by: default avatarNicolas Pitre <nico@linaro.org>
Acked-by: default avatarJohn Stultz <john.stultz@linaro.org>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: linux-kbuild@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Michal Marek <mmarek@suse.com>
Cc: Edward Cree <ecree@solarflare.com>
Link: http://lkml.kernel.org/r/1478841010-28605-5-git-send-email-nicolas.pitre@linaro.org


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent d1cbfd77

include/linux/time.h

+0 −2
Original line number Diff line number Diff line
@@ -172,8 +172,6 @@ extern int do_setitimer(int which, struct itimerval *value, 
			struct itimerval *ovalue);

extern int do_getitimer(int which, struct itimerval *value);



extern unsigned int alarm_setitimer(unsigned int seconds);



extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);



struct tms;

kernel/time/itimer.c

+14 −1
Original line number Diff line number Diff line
@@ -238,6 +238,8 @@ again: 
	return 0;

}



#ifdef __ARCH_WANT_SYS_ALARM



/**

 * alarm_setitimer - set alarm in seconds

 *
@@ -250,7 +252,7 @@ again: 
 * On 32 bit machines the seconds value is limited to (INT_MAX/2) to avoid

 * negative timeval settings which would cause immediate expiry.

 */

unsigned int alarm_setitimer(unsigned int seconds)

static unsigned int alarm_setitimer(unsigned int seconds)

{

	struct itimerval it_new, it_old;
@@ -275,6 +277,17 @@ unsigned int alarm_setitimer(unsigned int seconds) 
	return it_old.it_value.tv_sec;

}



/*

 * For backwards compatibility?  This can be done in libc so Alpha

 * and all newer ports shouldn't need it.

 */

SYSCALL_DEFINE1(alarm, unsigned int, seconds)

{

	return alarm_setitimer(seconds);

}



#endif



SYSCALL_DEFINE3(setitimer, int, which, struct itimerval __user *, value,

		struct itimerval __user *, ovalue)

{

kernel/time/timer.c

+0 −13
Original line number Diff line number Diff line
@@ -1662,19 +1662,6 @@ void run_local_timers(void) 
	raise_softirq(TIMER_SOFTIRQ);

}



#ifdef __ARCH_WANT_SYS_ALARM



/*

 * For backwards compatibility?  This can be done in libc so Alpha

 * and all newer ports shouldn't need it.

 */

SYSCALL_DEFINE1(alarm, unsigned int, seconds)

{

	return alarm_setitimer(seconds);

}



#endif



static void process_timeout(unsigned long __data)

{

	wake_up_process((struct task_struct *)__data);

CRA Git | Maintained and supported by SUSTech CRA and CCSE