4.9-stable review patch. If anyone has any objections, please let me know.
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From: Qing Xia saberlily.xia@hisilicon.com
commit 9bcf065e28122588a6cbee08cf847826dacbb438 upstream.
In the first loop, gfp_flags will be modified to high_order_gfp_flags, and there will be no chance to change back to low_order_gfp_flags.
Fixes: e7f63771b60e ("ION: Sys_heap: Add cached pool to spead up cached buffer alloc") Signed-off-by: Qing Xia saberlily.xia@hisilicon.com Cc: stable stable@vger.kernel.org Signed-off-by: Jing Xia jing.xia@unisoc.com Reviewed-by: Yuming Han yuming.han@unisoc.com Reviewed-by: Zhaoyang Huang zhaoyang.huang@unisoc.com Reviewed-by: Orson Zhai orson.zhai@unisoc.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/staging/android/ion/ion_system_heap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -307,10 +307,10 @@ static int ion_system_heap_create_pools( bool cached) { int i; - gfp_t gfp_flags = low_order_gfp_flags;
for (i = 0; i < NUM_ORDERS; i++) { struct ion_page_pool *pool; + gfp_t gfp_flags = low_order_gfp_flags;
if (orders[i] > 4) gfp_flags = high_order_gfp_flags;