[ 3.5.yuz extended stable ] Patch "Staging: android: binder: Allow using highmem for binder" has been added to staging queue

Herton Ronaldo Krzesinski herton.krzesinski at canonical.com
Thu Nov 22 04:47:04 UTC 2012

This is a note to let you know that I have just added a patch titled

    Staging: android: binder: Allow using highmem for binder

to the linux-3.5.y-queue branch of the 3.5.yuz extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.yuz tree, see



>From 15bcb3f411544dfc25fb4c0e71a7decc7247b45e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve at android.com>
Date: Tue, 16 Oct 2012 15:29:55 -0700
Subject: [PATCH] Staging: android: binder: Allow using highmem for binder
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 585650dcec88e704a19bb226a34b6a7166111623 upstream.

The default kernel mapping for the pages allocated for the binder
buffers is never used. Set the __GFP_HIGHMEM flag when allocating
these pages so we don't needlessly use low memory pages that may
be required elsewhere.

Signed-off-by: Arve Hjønnevåg <arve at android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski at canonical.com>
 drivers/staging/android/binder.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 80acd0e..223639a 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -655,7 +655,7 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 		page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE];

-		*page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+		*page = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
 		if (*page == NULL) {
 			printk(KERN_ERR "binder: %d: binder_alloc_buf failed "
 			       "for page at %p\n", proc->pid, page_addr);

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