Re: [PATCH 2/2] mm: fs: Invalidate BH LRU during page migration

Hi Minchan, I love your patch! Yet something to improve: [auto build test ERROR on block/for-next] [also build test ERROR on linux/master linus/master v5.12-rc1 next-20210303] [cannot apply to hnaz-linux-mm/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when

Re: [PATCH 2/2] mm: fs: Invalidate BH LRU during page migration

Hi Minchan, I love your patch! Yet something to improve: [auto build test ERROR on block/for-next] [also build test ERROR on linux/master linus/master v5.12-rc1 next-20210303] [cannot apply to hnaz-linux-mm/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when

[PATCH 2/2] mm: fs: Invalidate BH LRU during page migration

Pages containing buffer_heads that are in one of the per-CPU buffer_head LRU caches will be pinned and thus cannot be migrated. This can prevent CMA allocations from succeeding, which are often used on platforms with co-processors (such as a DSP) that can only use physically contiguous memory. It