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pcm: Remove home brew atomic operations

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We've had a few home brew atomic operations in a couple of places in
the PCM code.  This was for supporting the concurrent accesses, but in
practice, it couldn't cover the race properly by itself alone.

Since we have a wider concurrency protection via mutex now, we can get
rid of these atomic codes, which worsens the portability
significantly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2016-06-30 17:24:42 +02:00
parent 54931e5a54
commit 7a8a1d1552
7 changed files with 20 additions and 305 deletions
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2
src/pcm/pcm_plugin.h
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@ -19,7 +19,6 @@
*
*/
#include "iatomic.h"
#include "pcm_generic.h"
typedef snd_pcm_uframes_t (*snd_pcm_slave_xfer_areas_func_t)
@ -46,7 +45,6 @@ typedef struct {
snd_pcm_slave_xfer_areas_undo_func_t undo_write;
int (*init)(snd_pcm_t *pcm);
snd_pcm_uframes_t appl_ptr, hw_ptr;
snd_atomic_write_t watom;
} snd_pcm_plugin_t;
/* make local functions really local */