linux-kernel - [PATCH v2 7/9] staging: ion: remove order argument from free_buffer

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Message-id: <1401259980-26927-8-git-send-email-heesub.shin@samsung.com>
Date:	Wed, 28 May 2014 15:52:58 +0900
From:	Heesub Shin <heesub.shin@...sung.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	John Stultz <john.stultz@...aro.org>,
	Rebecca Schultz Zavin <rebecca@...roid.com>,
	Colin Cross <ccross@...roid.com>,
	Arve Hjønnevåg <arve@...roid.com>,
	Mitchel Humpherys <mitchelh@...eaurora.org>,
	Daeseok Youn <daeseok.youn@...il.com>,
	Sunghwan Yun <sunghwan.yun@...sung.com>,
	Dongjun Shin <d.j.shin@...sung.com>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Heesub Shin <heesub.shin@...sung.com>
Subject: [PATCH v2 7/9] staging: ion: remove order argument from
 free_buffer_page()

Now that the pages returned from the pool are compound pages, we do not
need to pass the order information to free_buffer_page().

Signed-off-by: Heesub Shin <heesub.shin@...sung.com>
---
 drivers/staging/android/ion/ion_system_heap.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index f0ae210..d78d589e 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -77,9 +77,9 @@ static struct page *alloc_buffer_page(struct ion_system_heap *heap,
 }
 
 static void free_buffer_page(struct ion_system_heap *heap,
-			     struct ion_buffer *buffer, struct page *page,
-			     unsigned int order)
+			     struct ion_buffer *buffer, struct page *page)
 {
+	unsigned int order = compound_order(page);
 	bool cached = ion_buffer_cached(buffer);
 
 	if (!cached && !(buffer->private_flags & ION_PRIV_FLAG_SHRINKER_FREE)) {
@@ -169,7 +169,7 @@ free_table:
 	kfree(table);
 free_pages:
 	list_for_each_entry_safe(page, tmp_page, &pages, lru)
-		free_buffer_page(sys_heap, buffer, page, compound_order(page));
+		free_buffer_page(sys_heap, buffer, page);
 	return -ENOMEM;
 }
 
@@ -189,8 +189,7 @@ static void ion_system_heap_free(struct ion_buffer *buffer)
 		ion_heap_buffer_zero(buffer);
 
 	for_each_sg(table->sgl, sg, table->nents, i)
-		free_buffer_page(sys_heap, buffer, sg_page(sg),
-				get_order(sg->length));
+		free_buffer_page(sys_heap, buffer, sg_page(sg));
 	sg_free_table(table);
 	kfree(table);
 }
-- 
1.9.1

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