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authorTakashi Iwai <tiwai@suse.de>2006-01-31 14:44:28 +0100
committerJaroslav Kysela <perex@suse.cz>2006-03-22 10:28:12 +0100
commit2ba8c15c738b64b4d3acaace1e19750362ff2b69 (patch)
tree14407aac8fe77a92424b6df73f0c3e39d83c7fc7 /sound/core
parent[ALSA] Use dma_alloc_coherent() hack on i386 only (diff)
downloadlinux-dev-2ba8c15c738b64b4d3acaace1e19750362ff2b69.tar.xz
linux-dev-2ba8c15c738b64b4d3acaace1e19750362ff2b69.zip
[ALSA] Removed unneeded page-reserve
Modules: Memalloc module Removed unneeded page-reservation. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/memalloc.c32
1 files changed, 2 insertions, 30 deletions
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 8360418d333e..3fc6f97075ed 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -141,10 +141,6 @@ static void *snd_dma_hack_alloc_coherent(struct device *dev, size_t size,
#endif /* arch */
-#if ! defined(__arm__)
-#define NEED_RESERVE_PAGES
-#endif
-
/*
*
* Generic memory allocators
@@ -163,20 +159,6 @@ static inline void dec_snd_pages(int order)
snd_allocated_pages -= 1 << order;
}
-static void mark_pages(struct page *page, int order)
-{
- struct page *last_page = page + (1 << order);
- while (page < last_page)
- SetPageReserved(page++);
-}
-
-static void unmark_pages(struct page *page, int order)
-{
- struct page *last_page = page + (1 << order);
- while (page < last_page)
- ClearPageReserved(page++);
-}
-
/**
* snd_malloc_pages - allocate pages with the given size
* @size: the size to allocate in bytes
@@ -195,10 +177,8 @@ void *snd_malloc_pages(size_t size, gfp_t gfp_flags)
snd_assert(gfp_flags != 0, 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) {
- mark_pages(virt_to_page(res), pg);
+ if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL)
inc_snd_pages(pg);
- }
return res;
}
@@ -217,7 +197,6 @@ void snd_free_pages(void *ptr, size_t size)
return;
pg = get_order(size);
dec_snd_pages(pg);
- unmark_pages(virt_to_page(ptr), pg);
free_pages((unsigned long) ptr, pg);
}
@@ -242,12 +221,8 @@ static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *d
| __GFP_NORETRY /* don't trigger OOM-killer */
| __GFP_NOWARN; /* no stack trace print - this call is non-critical */
res = dma_alloc_coherent(dev, PAGE_SIZE << pg, dma, gfp_flags);
- if (res != NULL) {
-#ifdef NEED_RESERVE_PAGES
- mark_pages(virt_to_page(res), pg); /* should be dma_to_page() */
-#endif
+ if (res != NULL)
inc_snd_pages(pg);
- }
return res;
}
@@ -262,9 +237,6 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr,
return;
pg = get_order(size);
dec_snd_pages(pg);
-#ifdef NEED_RESERVE_PAGES
- unmark_pages(virt_to_page(ptr), pg); /* should be dma_to_page() */
-#endif
dma_free_coherent(dev, PAGE_SIZE << pg, ptr, dma);
}