Messages in this thread |  | | From | Alexander Duyck <> | Date | Mon, 3 Aug 2020 15:42:59 -0700 | Subject | Re: [PATCH v17 20/21] mm/pgdat: remove pgdat lru_lock |
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On Sat, Jul 25, 2020 at 6:00 AM Alex Shi <alex.shi@linux.alibaba.com> wrote: > > Now pgdat.lru_lock was replaced by lruvec lock. It's not used anymore. > > Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> > Cc: Andrew Morton <akpm@linux-foundation.org> > Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> > Cc: Hugh Dickins <hughd@google.com> > Cc: Johannes Weiner <hannes@cmpxchg.org> > Cc: linux-mm@kvack.org > Cc: linux-kernel@vger.kernel.org > Cc: cgroups@vger.kernel.org
I really think this would be better just squashed into patch 18 instead of as a standalone patch since you were moving all of the locking anyway so it would be more likely to trigger build errors if somebody didn't move a lock somewhere that was referencing this.
That said this change is harmless at this point.
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
> --- > 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 30b961a9a749..8af956aa13cf 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); > } > > -- > 1.8.3.1 >
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