On Thu, 2018-05-17 at 11:26 -0700, Matthew Wilcox wrote: > On Thu, May 17, 2018 at 01:43:36PM -0400, Jeff Layton wrote: > > @@ -107,12 +109,10 @@ static void fdatawait_one_bdev(struct block_device *bdev, void *arg) > > */ > > void ksys_sync(void) > > { > > - int nowait = 0, wait = 1; > > - > > wakeup_flusher_threads(WB_REASON_SYNC); > > iterate_supers(sync_inodes_one_sb, NULL); > > - iterate_supers(sync_fs_one_sb, &nowait); > > - iterate_supers(sync_fs_one_sb, &wait); > > + iterate_supers(sync_fs_one_sb, NULL); > > + iterate_supers(sync_fs_one_sb, (void *)1UL); > > I think this is actually less clear. How about: > > void *wait = (void *)1UL; > > iterate_supers(sync_fs_one_sb, !wait); > iterate_supers(sync_fs_one_sb, wait); > Sure, I could do that. We could also keep the wait/nowait vars too, I guess.