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Message-ID: <fa7112d5-b20d-429a-b083-426d605c3354@bytedance.com>
Date: Tue, 30 Jan 2024 11:37:40 +0800
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Subject: Re: [PATCH 02/20] mm: zswap: inline and remove zswap_entry_find_get()
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To: Johannes Weiner <hannes@cmpxchg.org>,
 Andrew Morton <akpm@linux-foundation.org>
Cc: Nhat Pham <nphamcs@gmail.com>, Yosry Ahmed <yosryahmed@google.com>,
 linux-mm@kvack.org, linux-kernel@vger.kernel.org
References: <20240130014208.565554-1-hannes@cmpxchg.org>
 <20240130014208.565554-3-hannes@cmpxchg.org>
From: Chengming Zhou <zhouchengming@bytedance.com>
In-Reply-To: <20240130014208.565554-3-hannes@cmpxchg.org>
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On 2024/1/30 09:36, Johannes Weiner wrote:
> There is only one caller and the function is trivial. Inline it.
> 
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>

Reviewed-by: Chengming Zhou <zhouchengming@bytedance.com>

> ---
>  mm/zswap.c | 17 ++---------------
>  1 file changed, 2 insertions(+), 15 deletions(-)
> 
> diff --git a/mm/zswap.c b/mm/zswap.c
> index 173f2e6657de..cf864aaa214d 100644
> --- a/mm/zswap.c
> +++ b/mm/zswap.c
> @@ -559,19 +559,6 @@ static void zswap_entry_put(struct zswap_entry *entry)
>  	}
>  }
>  
> -/* caller must hold the tree lock */
> -static struct zswap_entry *zswap_entry_find_get(struct rb_root *root,
> -				pgoff_t offset)
> -{
> -	struct zswap_entry *entry;
> -
> -	entry = zswap_rb_search(root, offset);
> -	if (entry)
> -		zswap_entry_get(entry);
> -
> -	return entry;
> -}
> -
>  /*********************************
>  * shrinker functions
>  **********************************/
> @@ -1708,13 +1695,13 @@ bool zswap_load(struct folio *folio)
>  
>  	VM_WARN_ON_ONCE(!folio_test_locked(folio));
>  
> -	/* find */
>  	spin_lock(&tree->lock);
> -	entry = zswap_entry_find_get(&tree->rbroot, offset);
> +	entry = zswap_rb_search(&tree->rbroot, offset);
>  	if (!entry) {
>  		spin_unlock(&tree->lock);
>  		return false;
>  	}
> +	zswap_entry_get(entry);
>  	spin_unlock(&tree->lock);
>  
>  	if (entry->length)