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mm/swap: remove unneeded return value of free_swap_slot
The return value of free_swap_slot is always 0 and also ignored now. Remove it to clean up the code. Link: https://lkml.kernel.org/r/20220509131416.17553-5-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-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>
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2 changed files with 2 additions and 4 deletions
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@ -24,7 +24,7 @@ struct swap_slots_cache {
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void disable_swap_slots_cache_lock(void);
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void reenable_swap_slots_cache_unlock(void);
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void enable_swap_slots_cache(void);
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int free_swap_slot(swp_entry_t entry);
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void free_swap_slot(swp_entry_t entry);
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extern bool swap_slot_cache_enabled;
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@ -269,7 +269,7 @@ static int refill_swap_slots_cache(struct swap_slots_cache *cache)
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return cache->nr;
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}
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int free_swap_slot(swp_entry_t entry)
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void free_swap_slot(swp_entry_t entry)
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{
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struct swap_slots_cache *cache;
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@ -297,8 +297,6 @@ int free_swap_slot(swp_entry_t entry)
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direct_free:
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swapcache_free_entries(&entry, 1);
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}
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return 0;
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}
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swp_entry_t folio_alloc_swap(struct folio *folio)
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