linux-kernel - Re: [Patch v2] mm/swap_slots.c: assign|reset cache slot by value directly

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Date:   Wed, 11 Mar 2020 09:10:39 -0700
From:   Tim Chen <tim.c.chen@...ux.intel.com>
To:     Wei Yang <richard.weiyang@...ux.alibaba.com>,
        akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [Patch v2] mm/swap_slots.c: assign|reset cache slot by value
 directly

On 3/10/20 10:53 PM, Wei Yang wrote:
> Currently we use a tmp pointer, pentry, to transfer and reset swap cache
> slot, which is a little redundant. Swap cache slot stores the entry
> value directly, assign and reset it by value would be straight forward.
> 
> Also this patch merges the else and if, since this is the only case we
> refill and repeat swap cache.
> 
> Signed-off-by: Wei Yang <richard.weiyang@...ux.alibaba.com>
> CC: Tim Chen <tim.c.chen@...ux.intel.com>

Acked-by: Tim Chen <tim.c.chen@...ux.intel.com>

> 
> ---
> v2: keep the reset step after use, but remove the tmp pointer
> ---