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authorDavid S. Miller <davem@davemloft.net>2008-10-11 23:39:35 +0400
committerDavid S. Miller <davem@davemloft.net>2008-10-11 23:39:35 +0400
commit56c5d900dbb8e042bfad035d18433476931d8f93 (patch)
tree00b793965beeef10db03e0ff021d2d965c410759 /sound/core/memalloc.c
parent4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff)
parentead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff)
downloadlinux-56c5d900dbb8e042bfad035d18433476931d8f93.tar.xz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: sound/core/memalloc.c
Diffstat (limited to 'sound/core/memalloc.c')
-rw-r--r--sound/core/memalloc.c52
1 files changed, 20 insertions, 32 deletions
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 3733351a27f2..1b3534d67686 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -43,14 +43,6 @@ MODULE_LICENSE("GPL");
/*
*/
-void *snd_malloc_sgbuf_pages(struct device *device,
- size_t size, struct snd_dma_buffer *dmab,
- size_t *res_size);
-int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab);
-
-/*
- */
-
static DEFINE_MUTEX(list_mutex);
static LIST_HEAD(mem_list_head);
@@ -64,18 +56,6 @@ struct snd_mem_list {
/* id for pre-allocated buffers */
#define SNDRV_DMA_DEVICE_UNUSED (unsigned int)-1
-#ifdef CONFIG_SND_DEBUG
-#define __ASTRING__(x) #x
-#define snd_assert(expr, args...) do {\
- if (!(expr)) {\
- printk(KERN_ERR "snd-malloc: BUG? (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\
- args;\
- }\
-} while (0)
-#else
-#define snd_assert(expr, args...) /**/
-#endif
-
/*
*
* Generic memory allocators
@@ -108,8 +88,10 @@ void *snd_malloc_pages(size_t size, gfp_t gfp_flags)
int pg;
void *res;
- snd_assert(size > 0, return NULL);
- snd_assert(gfp_flags != 0, return NULL);
+ if (WARN_ON(!size))
+ return NULL;
+ if (WARN_ON(!gfp_flags))
+ return NULL;
gfp_flags |= __GFP_COMP; /* compound page lets parts be mapped */
pg = get_order(size);
if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL)
@@ -149,8 +131,8 @@ static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *d
void *res;
gfp_t gfp_flags;
- snd_assert(size > 0, return NULL);
- snd_assert(dma != NULL, return NULL);
+ if (WARN_ON(!dma))
+ return NULL;
pg = get_order(size);
gfp_flags = GFP_KERNEL
| __GFP_COMP /* compound page lets parts be mapped */
@@ -200,8 +182,10 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr,
int snd_dma_alloc_pages(int type, struct device *device, size_t size,
struct snd_dma_buffer *dmab)
{
- snd_assert(size > 0, return -ENXIO);
- snd_assert(dmab != NULL, return -ENXIO);
+ if (WARN_ON(!size))
+ return -ENXIO;
+ if (WARN_ON(!dmab))
+ return -ENXIO;
dmab->dev.type = type;
dmab->dev.dev = device;
@@ -251,15 +235,17 @@ int snd_dma_alloc_pages_fallback(int type, struct device *device, size_t size,
{
int err;
- snd_assert(size > 0, return -ENXIO);
- snd_assert(dmab != NULL, return -ENXIO);
-
while ((err = snd_dma_alloc_pages(type, device, size, dmab)) < 0) {
+ size_t aligned_size;
if (err != -ENOMEM)
return err;
- size >>= 1;
if (size <= PAGE_SIZE)
return -ENOMEM;
+ aligned_size = PAGE_SIZE << get_order(size);
+ if (size != aligned_size)
+ size = aligned_size;
+ else
+ size >>= 1;
}
if (! dmab->area)
return -ENOMEM;
@@ -307,7 +293,8 @@ size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id)
{
struct snd_mem_list *mem;
- snd_assert(dmab, return 0);
+ if (WARN_ON(!dmab))
+ return 0;
mutex_lock(&list_mutex);
list_for_each_entry(mem, &mem_list_head, list) {
@@ -341,7 +328,8 @@ int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id)
{
struct snd_mem_list *mem;
- snd_assert(dmab, return -EINVAL);
+ if (WARN_ON(!dmab))
+ return -EINVAL;
mem = kmalloc(sizeof(*mem), GFP_KERNEL);
if (! mem)
return -ENOMEM;