Messages in this thread Patch in this message |  | | Date | Thu, 29 Aug 2002 21:56:27 +0200 | Subject | [PATCH] 24/41 sound/oss/sys_timer.c - convert cli to spinlocks | From | pwaechtler@mac ... |
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--- vanilla-2.5.32/sound/oss/sys_timer.c Sat Apr 20 18:25:21 2002 +++ linux-2.5-cli-oss/sound/oss/sys_timer.c Thu Aug 15 14:30:00 2002 @@ -15,6 +15,7 @@ * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) * Andrew Veliath : adapted tmr2ticks from level 1 sequencer (avoid overflow) */ +#include <linux/spinlock.h> #include "sound_config.h" static volatile int opened = 0, tmr_running = 0; @@ -26,7 +27,7 @@ static unsigned long prev_event_time; static void poll_def_tmr(unsigned long dummy); - +static spinlock_t lock=SPIN_LOCK_UNLOCKED; static struct timer_list def_tmr = {function: poll_def_tmr}; @@ -62,6 +63,7 @@ if (tmr_running) { + spin_lock(&lock); tmr_ctr++; curr_ticks = ticks_offs + tmr2ticks(tmr_ctr); @@ -70,6 +72,7 @@ next_event_time = (unsigned long) -1; sequencer_timer(0); } + spin_unlock(&lock); } } } @@ -79,15 +82,14 @@ { unsigned long flags; - save_flags(flags); - cli(); + spin_lock_irqsave(&lock,flags); tmr_offs = 0; ticks_offs = 0; tmr_ctr = 0; next_event_time = (unsigned long) -1; prev_event_time = 0; curr_ticks = 0; - restore_flags(flags); + spin_unlock_irqrestore(&lock,flags); } static int - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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