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Subject[PATCH v18 24/32] mm/pgdat: remove pgdat lru_lock
Date
Now pgdat.lru_lock was replaced by lruvec lock. It's not used anymore.

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.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
---
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 f0596e634863..0ed520954843 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -758,7 +758,6 @@ 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 fab5e97dc9ca..775120fcc869 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6733,7 +6733,6 @@ 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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