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mm/swap: remove buggy cache->nr check in refill_swap_slots_cache

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refill_swap_slots_cache is always called when cache->nr is 0.  So remove
such buggy and confusing check.

Link: https://lkml.kernel.org/r/20220509131416.17553-7-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2022-05-19 14:08:51 -07:00 committed by akpm
parent 23b230ba8a
commit f19c25684c
1 changed files with 1 additions and 1 deletions
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2
mm/swap_slots.c
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@ -258,7 +258,7 @@ out_unlock:
/* called with swap slot cache's alloc lock held */ /* called with swap slot cache's alloc lock held */
static int refill_swap_slots_cache(struct swap_slots_cache *cache) static int refill_swap_slots_cache(struct swap_slots_cache *cache)
{ {
if (!use_swap_slot_cache || cache->nr) if (!use_swap_slot_cache)
return 0; return 0;
cache->cur = 0; cache->cur = 0;