On Fri, Jul 10, 2020 at 5:59 PM Alex Shi <[email protected]> wrote: > > Now pgdat.lru_lock was replaced by lruvec lock. It's not used anymore. > > Signed-off-by: Alex Shi <[email protected]> > Cc: Andrew Morton <[email protected]> > Cc: Konstantin Khlebnikov <[email protected]> > Cc: Hugh Dickins <[email protected]> > Cc: Johannes Weiner <[email protected]> > Cc: [email protected] > Cc: [email protected] > Cc: [email protected] > --- > include/linux/mmzone.h | 1 - > mm/page_alloc.c | 1 - > 2 files changed, 2 deletions(-) > > diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h > index 36c1680efd90..8d7318ce5f62 100644 > --- a/include/linux/mmzone.h > +++ b/include/linux/mmzone.h > @@ -735,7 +735,6 @@ struct deferred_split { > > /* Write-intensive fields used by page reclaim */ > ZONE_PADDING(_pad1_) > - spinlock_t lru_lock; > > #ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT > /* > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index e028b87ce294..4d7df42b32d6 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -6721,7 +6721,6 @@ static void __meminit pgdat_init_internals(struct > pglist_data *pgdat) > init_waitqueue_head(&pgdat->pfmemalloc_wait); > > pgdat_page_ext_init(pgdat); > - spin_lock_init(&pgdat->lru_lock); > lruvec_init(&pgdat->__lruvec); > } >
This patch would probably make more sense as part of patch 18 since you removed all of the users of this field there.
