Correct wrong fls(mem+1) to fls(mem)+1 and remove the duplicated comment with quiet_vmstat(). Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> --- mm/vmstat.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/mm/vmstat.c b/mm/vmstat.c index b0534e068166..57e8e7fda7aa 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -204,7 +204,7 @@ int calculate_normal_threshold(struct zone *zone) * * Some sample thresholds: * - * Threshold Processors (fls) Zonesize fls(mem+1) + * Threshold Processors (fls) Zonesize fls(mem)+1 * ------------------------------------------------------------------ * 8 1 1 0.9-1 GB 4 * 16 2 2 0.9-1 GB 4 @@ -1873,11 +1873,6 @@ static void vmstat_update(struct work_struct *w) } } -/* - * Switch off vmstat processing and then fold all the remaining differentials - * until the diffs stay at zero. The function is used by NOHZ and can only be - * invoked when tick processing is not active. - */ /* * Check if the diffs for a certain cpu indicate that * an update is needed. -- 2.23.0