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nexedi
linux
Commits
0a4d98b4
Commit
0a4d98b4
authored
Aug 30, 2002
by
Peter Wächtler
Committed by
Linus Torvalds
Aug 30, 2002
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[PATCH] oss/sys_timer.c - convert cli to spinlocks
parent
e1f63f69
Changes
1
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1 changed file
with
6 additions
and
4 deletions
+6
-4
sound/oss/sys_timer.c
sound/oss/sys_timer.c
+6
-4
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sound/oss/sys_timer.c
View file @
0a4d98b4
...
...
@@ -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 volatile unsigned long next_event_time;
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 @@ poll_def_tmr(unsigned long dummy)
if
(
tmr_running
)
{
spin_lock
(
&
lock
);
tmr_ctr
++
;
curr_ticks
=
ticks_offs
+
tmr2ticks
(
tmr_ctr
);
...
...
@@ -70,6 +72,7 @@ poll_def_tmr(unsigned long dummy)
next_event_time
=
(
unsigned
long
)
-
1
;
sequencer_timer
(
0
);
}
spin_unlock
(
&
lock
);
}
}
}
...
...
@@ -79,15 +82,14 @@ tmr_reset(void)
{
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
...
...
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