[PATCH 205/270] Staging: android: binder: Allow using highmem for binder buffers
Herton Ronaldo Krzesinski
herton.krzesinski at canonical.com
Mon Nov 26 16:58:15 UTC 2012
3.5.7u1 -stable review patch. If anyone has any objections, please let me know.
------------------
From: =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve at android.com>
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];
BUG_ON(*page);
- *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);
--
1.7.9.5
More information about the kernel-team
mailing list