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ALSA: aloop: Convert to the common vmalloc memalloc 

The recent change (*) in the ALSA memalloc core allows us to drop the
special vmalloc-specific allocation and page handling.  This patch
coverts to the common code.
(*) 1fe7f397cfe2: ALSA: memalloc: Add vmalloc buffer allocation
                  support
    7e8edae39fd1: ALSA: pcm: Handle special page
                  mapping in the default mmap handler

Link: https://lore.kernel.org/r/20191105151856.10785-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-11-05 16:18:41 +01:00
parent b315997d7c
commit b29e5ef151
1 changed files with 4 additions and 4 deletions
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8
sound/drivers/aloop.c
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@ -576,8 +576,7 @@ static void loopback_runtime_free(struct snd_pcm_runtime *runtime)
static int loopback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
return snd_pcm_lib_alloc_vmalloc_buffer(substream,
params_buffer_bytes(params));
return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
}
static int loopback_hw_free(struct snd_pcm_substream *substream)
@ -589,7 +588,7 @@ static int loopback_hw_free(struct snd_pcm_substream *substream)
mutex_lock(&dpcm->loopback->cable_lock);
cable->valid &= ~(1 << substream->stream);
mutex_unlock(&dpcm->loopback->cable_lock);
return snd_pcm_lib_free_vmalloc_buffer(substream);
return snd_pcm_lib_free_pages(substream);
}
static unsigned int get_cable_index(struct snd_pcm_substream *substream)
@ -765,7 +764,6 @@ static const struct snd_pcm_ops loopback_pcm_ops = {
.prepare = loopback_prepare,
.trigger = loopback_trigger,
.pointer = loopback_pointer,
.page = snd_pcm_lib_get_vmalloc_page,
};
static int loopback_pcm_new(struct loopback *loopback,
@ -780,6 +778,8 @@ static int loopback_pcm_new(struct loopback *loopback,
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &loopback_pcm_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &loopback_pcm_ops);
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
NULL, 0, 0);
pcm->private_data = loopback;
pcm->info_flags = 0;