On Sat, Jul 15, 2023 at 04:42:13AM +0100, Matthew Wilcox wrote: > On Fri, Jul 14, 2023 at 03:46:08PM -0400, Johannes Weiner wrote: > > diff --git a/mm/zswap.c b/mm/zswap.c > > index 62195f72bf56..1b0128060792 100644 > > --- a/mm/zswap.c > > +++ b/mm/zswap.c > > @@ -2,7 +2,7 @@ > > /* > > * zswap.c - zswap driver file > > * > > - * zswap is a backend for frontswap that takes pages that are in the process > > + * zswap is a cache that takes pages that are in the process > > * of being swapped out and attempts to compress and store them in a > > * RAM-based memory pool. This can result in a significant I/O reduction on > > * the swap device and, in the case where decompressing from RAM is faster > > @@ -20,7 +20,6 @@ > > #include <linux/spinlock.h> > > #include <linux/types.h> > > #include <linux/atomic.h> > > -#include <linux/frontswap.h> > > #include <linux/rbtree.h> > > #include <linux/swap.h> > > #include <linux/crypto.h> > > To make this patch compile, I had to add zswap.h to the include list. I can fix that up, but I'm curious what kind of failure you saw. It built fine for me, not even a warning.
