linux-kernel - Re: [PATCH] block: remove CONFIG

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Message-ID: <5cd01b3f-84c3-0159-1036-49fca809d171@suse.de>
Date:   Mon, 8 Apr 2019 10:30:24 +0200
From:   Hannes Reinecke <hare@...e.de>
To:     Christoph Hellwig <hch@....de>, axboe@...nel.dk
Cc:     torvalds@...uxfoundation.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block: remove CONFIG_LBDAF

On 4/5/19 6:08 PM, Christoph Hellwig wrote:
> Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
> architectures.  These types are required to support block device and/or
> file sizes larger than 2 TiB, and have generally defaulted to on for
> a long time.  Enabling the option only increases the i386 tinyconfig
> size by 145 bytes, and many data structures already always use
> 64-bit values for their in-core and on-disk data structures anyway,
> so there should not be a large change in dynamic memory usage either.
> 
> Dropping this option removes a somewhat weird non-default config that
> has cause various bugs or compiler warnings when actually used.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
Reviewed-by: Hannes Reinecke <hare@...e.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@...e.de			               +49 911 74053 688
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