linux-kernel - Re: [PATCH v6 2/6] zpool: clean out dead code

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Message-ID: <Y3wp7IiVkq032pmi@google.com>
Date:   Tue, 22 Nov 2022 10:46:20 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Nhat Pham <nphamcs@...il.com>
Cc:     akpm@...ux-foundation.org, hannes@...xchg.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, minchan@...nel.org,
        ngupta@...are.org, senozhatsky@...omium.org, sjenning@...hat.com,
        ddstreet@...e.org, vitaly.wool@...sulko.com
Subject: Re: [PATCH v6 2/6] zpool: clean out dead code

On (22/11/18 16:15), Nhat Pham wrote:
> There is a lot of provision for flexibility that isn't actually needed
> or used. Zswap (the only zpool user) always passes zpool_ops with an
> .evict method set. The backends who reclaim only do so for zswap, so
> they can also directly call zpool_ops without indirection or checks.
> 
> Finally, there is no need to check the retries parameters and bail
> with -EINVAL in the reclaim function, when that's called just a few
> lines below with a hard-coded 8. There is no need to duplicate the
> evictable and sleep_mapped attrs from the driver in zpool_ops.
> 
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>
> Signed-off-by: Nhat Pham <nphamcs@...il.com>

Reviewed-by: Sergey Senozhatsky <senozhatsky@...omium.org>