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From: Christoph Hellwig <hch@lst.de>
To: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: Christoph Hellwig <hch@lst.de>,
	"stern@rowland.harvard.edu" <stern@rowland.harvard.edu>,
	"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"usb-storage@lists.one-eyed-alien.net" 
	<usb-storage@lists.one-eyed-alien.net>,
	"linux-renesas-soc@vger.kernel.org" 
	<linux-renesas-soc@vger.kernel.org>
Subject: Re: [PATCH] usb-storage: Add a limitation for blk_queue_max_hw_sectors()
Date: Thu, 13 Jun 2019 10:51:21 +0200	[thread overview]
Message-ID: <20190613085121.GA13442@lst.de> (raw)
In-Reply-To: <OSAPR01MB30899FBDA010F0465599437AD8EF0@OSAPR01MB3089.jpnprd01.prod.outlook.com>

On Thu, Jun 13, 2019 at 08:46:00AM +0000, Yoshihiro Shimoda wrote:
> I believe this patch I sent has already covered it. What do you think?
> 
> For examples (all value units are "sectors"):
> 	default	mapping size	max_sectors
> case 1	240	MAX		2048		--> we use 2048
> case 2	240	512		2048		--> we use 512
> case 3	240	128		2048		--> we use 128
> case 4	240	128		64		--> we use 64

Yes, I guess your version is fine after all:

Reviewed-by: Christoph Hellwig <hch@lst.de>

although I think it might be simpler to just read the value back
from the queue in the end.

  reply	other threads:[~2019-06-13 15:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-13  4:35 [PATCH] usb-storage: Add a limitation for blk_queue_max_hw_sectors() Yoshihiro Shimoda
2019-06-13  7:33 ` Christoph Hellwig
2019-06-13  8:46   ` Yoshihiro Shimoda
2019-06-13  8:51     ` Christoph Hellwig [this message]
2019-06-13  9:03       ` Yoshihiro Shimoda

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