ION system heap uses an internal data structure, struct page_info, for
tracking down the meta information of the pages allocated from the pool.
Now that the pool returns compound pages, we don't need to store page
order in struct page_info.
Signed-off-by: Heesub Shin <heesub.s...@samsung.com>
---
drivers/staging/android/ion/ion_system_heap.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/android/ion/ion_system_heap.c
b/drivers/staging/android/ion/ion_system_heap.c
index 48e6a58..73a2e67 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -53,7 +53,6 @@ struct ion_system_heap {
struct page_info {
struct page *page;
- unsigned int order;
struct list_head list;
};
@@ -121,7 +120,6 @@ static struct page_info *alloc_largest_available(struct
ion_system_heap *heap,
continue;
info->page = page;
- info->order = orders[i];
return info;
}
kfree(info);
@@ -158,8 +156,8 @@ static int ion_system_heap_allocate(struct ion_heap *heap,
if (!info)
goto free_pages;
list_add_tail(&info->list, &pages);
- size_remaining -= PAGE_SIZE << info->order;
- max_order = info->order;
+ size_remaining -= PAGE_SIZE << compound_order(info->page);
+ max_order = compound_order(info->page);
i++;
}
table = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
@@ -172,7 +170,7 @@ static int ion_system_heap_allocate(struct ion_heap *heap,
sg = table->sgl;
list_for_each_entry_safe(info, tmp_info, &pages, list) {
struct page *page = info->page;
- sg_set_page(sg, page, PAGE_SIZE << info->order, 0);
+ sg_set_page(sg, page, PAGE_SIZE << compound_order(page), 0);
sg = sg_next(sg);
list_del(&info->list);
kfree(info);
@@ -185,7 +183,8 @@ free_table:
kfree(table);
free_pages:
list_for_each_entry_safe(info, tmp_info, &pages, list) {
- free_buffer_page(sys_heap, buffer, info->page, info->order);
+ free_buffer_page(sys_heap, buffer, info->page,
+ compound_order(info->page));
kfree(info);
}
return -ENOMEM;
--
1.9.1
--
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