From: Wei Yang <richard.weiyang@xxxxxxxxx> Subject: mm/swapfile.c: remove the extra check in scan_swap_map_slots() scan_swap_map_slots() is only called by scan_swap_map() and get_swap_pages(). Both ensure nr would not exceed SWAP_BATCH. Just remove it. Link: http://lkml.kernel.org/r/20200325220309.9803-2-richard.weiyang@xxxxxxxxx Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx> Cc: Hugh Dickins <hughd@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/swapfile.c | 3 --- 1 file changed, 3 deletions(-) --- a/mm/swapfile.c~mm-swapfilec-remove-the-extra-check-in-scan_swap_map_slots +++ a/mm/swapfile.c @@ -740,9 +740,6 @@ static int scan_swap_map_slots(struct sw int latency_ration = LATENCY_LIMIT; int n_ret = 0; - if (nr > SWAP_BATCH) - nr = SWAP_BATCH; - /* * We try to cluster swap pages by allocating them sequentially * in swap. Once we've allocated SWAPFILE_CLUSTER pages this _
