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 spead up cached buffer alloc")Huh... Presumably you found this bug just by reading the code. I wonder how it affects runtime?
The problem is that when I found that there was no page allocation failure warning after the failure of the ion alloc in my test, and then I found the problem of gfp_flags. regards, Qing
regards, dan carpenter .
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