Staging: android: binder: Allow using highmem for binder buffers

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@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
tytung 2012-11-17 01:13:40 +08:00
parent a0b0a01619
commit bba549a7dc

View File

@ -656,7 +656,7 @@ 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) {
binder_debug(BINDER_DEBUG_TOP_ERRORS,
"binder: %d: binder_alloc_buf failed "