On Thu, May 07, 2020 at 03:50:57PM +0800, Zhen Lei wrote:
> +++ b/block/blk-settings.c
> @@ -150,7 +150,7 @@ void blk_queue_max_hw_sectors(struct request_queue *q, unsigned int max_hw_secto
> unsigned int max_sectors;
>
> if ((max_hw_sectors << 9) < PAGE_SIZE) {
> - max_hw_sectors = 1 << (PAGE_SHIFT - 9);
> + max_hw_sectors = PAGE_SECTORS;
Surely this should be:
if (max_hw_sectors < PAGE_SECTORS) {
max_hw_sectors = PAGE_SECTORS;
... no?
> - page = read_mapping_page(mapping,
> - (pgoff_t)(n >> (PAGE_SHIFT - 9)), NULL);
> + page = read_mapping_page(mapping, (pgoff_t)sectors_to_npage(n), NULL);
... again, get the type right, and you won't need the cast.
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