Replace the repeated multiplication in the main loop body calculation of zspage_size with an equivalent (and cheaper) addition operation.
Signed-off-by: Joey Pabalinas <[email protected]> 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index c3013505c30527dc42..647a1a2728634b5194 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -821,15 +821,15 @@ static enum fullness_group fix_fullness_group(struct size_class *class, */ static int get_pages_per_zspage(int class_size) { + int zspage_size = 0; int i, max_usedpc = 0; /* zspage order which gives maximum used size per KB */ int max_usedpc_order = 1; for (i = 1; i <= ZS_MAX_PAGES_PER_ZSPAGE; i++) { - int zspage_size; int waste, usedpc; - zspage_size = i * PAGE_SIZE; + zspage_size += PAGE_SIZE; waste = zspage_size % class_size; usedpc = (zspage_size - waste) * 100 / zspage_size; -- 2.16.2
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