diff options
Diffstat (limited to 'drivers/sound/dmabuf.c')
| -rw-r--r-- | drivers/sound/dmabuf.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/sound/dmabuf.c b/drivers/sound/dmabuf.c index 07d416a27..c11c1fe73 100644 --- a/drivers/sound/dmabuf.c +++ b/drivers/sound/dmabuf.c @@ -56,8 +56,9 @@ static long dmabuf_timeout(struct dma_buffparms *dmap) static int sound_alloc_dmap(struct dma_buffparms *dmap) { char *start_addr, *end_addr; - int i, dma_pagesize; + int dma_pagesize; int sz, size; + struct page *page; dmap->mapping_flags &= ~DMA_MAP_MAPPED; @@ -113,14 +114,15 @@ static int sound_alloc_dmap(struct dma_buffparms *dmap) dmap->raw_buf = start_addr; dmap->raw_buf_phys = virt_to_bus(start_addr); - for (i = MAP_NR(start_addr); i <= MAP_NR(end_addr); i++) - set_bit(PG_reserved, &mem_map[i].flags);; + for (page = virt_to_page(start_addr); page <= get_mem_map(end_addr); page++) + mem_map_reserve(page); return 0; } static void sound_free_dmap(struct dma_buffparms *dmap) { - int sz, size, i; + int sz, size; + struct page *page; unsigned long start_addr, end_addr; if (dmap->raw_buf == NULL) @@ -132,8 +134,8 @@ static void sound_free_dmap(struct dma_buffparms *dmap) start_addr = (unsigned long) dmap->raw_buf; end_addr = start_addr + dmap->buffsize; - for (i = MAP_NR(start_addr); i <= MAP_NR(end_addr); i++) - clear_bit(PG_reserved, &mem_map[i].flags);; + for (page = virt_to_page(start_addr); page <= get_mem_map(end_addr); page++) + mem_map_unreserve(page); free_pages((unsigned long) dmap->raw_buf, sz); dmap->raw_buf = NULL; |