On 2019/2/1 16:15, Dan Carpenter wrote:
On Fri, Feb 01, 2019 at 02:59:46PM +0800, Qing Xia wrote:
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: e7f63771 ("ION: Sys_heap: Add cached pool to
On 2019/1/3 6:36, Laura Abbott wrote:
On 12/24/18 12:19 AM, Qing Xia wrote:
Now, as Google's user guide, if userspace need clean ION buffer's
cache, they should call ioctl(fd, DMA_BUF_IOCTL_SYNC, sync). Then
we found that ion_dma_buf_begin_cpu_access/ion_dma_buf_end_cpu_access
will do ION
