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From: Daejun Park <daejun7.park@samsung.com>
To: "James E . J . Bottomley" <jejb@linux.vnet.ibm.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
	Bart Van Assche <bvanassche@acm.org>,
	yongmyung lee <ymhungry.lee@samsung.com>,
	Daejun Park <daejun7.park@samsung.com>,
	ALIM AKHTAR <alim.akhtar@samsung.com>,
	"asutoshd@codeaurora.org" <asutoshd@codeaurora.org>,
	Zang Leigang <zangleigang@hisilicon.com>,
	Avi Shchislowski <avi.shchislowski@wdc.com>,
	Bean Huo <beanhuo@micron.com>,
	"cang@codeaurora.org" <cang@codeaurora.org>,
	"stanley.chu@mediatek.com" <stanley.chu@mediatek.com>,
	Avri Altman <avri.altman@wdc.com>
Subject: RE: [PATCH 4/8] scsi: ufshpb: Make eviction depends on region's reads
Date: Mon, 01 Feb 2021 12:59:33 +0900	[thread overview]
Message-ID: <1891546521.01612153681714.JavaMail.epsvc@epcpadp4> (raw)
In-Reply-To: <20210127151217.24760-5-avri.altman@wdc.com>

Hi Avri,

> +		/*
> +		 * in host control mode, verify that the exiting region
> +		 * has less reads
> +		 */
> +		if (ufshpb_mode == HPB_HOST_CONTROL &&
> +		    atomic64_read(&rgn->reads) > (EVICTION_THRSHLD >> 1))
Why we use shifted value to verify less read? I think we should use another
value to verify.

Thanks,
Daejun

  parent reply	other threads:[~2021-02-01  4:31 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-27 15:12 [PATCH 0/8] Add Host control mode to HPB Avri Altman
2021-01-27 15:12 ` [PATCH 1/8] scsi: ufshpb: Cache HPB Control mode on init Avri Altman
2021-01-27 15:19   ` Greg KH
2021-01-31  7:08     ` Avri Altman
2021-01-31  7:13       ` Greg KH
2021-01-31  7:17         ` Avri Altman
2021-01-27 15:12 ` [PATCH 2/8] scsi: ufshpb: Add host control mode support to rsp_upiu Avri Altman
2021-01-27 15:20   ` Greg KH
2021-01-31  7:08     ` Avri Altman
2021-01-27 15:12 ` [PATCH 3/8] scsi: ufshpb: Add region's reads counter Avri Altman
2021-01-27 15:21   ` Greg KH
2021-01-31  7:25     ` Avri Altman
2021-01-31  7:35       ` Greg KH
2021-01-27 15:12 ` [PATCH 4/8] scsi: ufshpb: Make eviction depends on region's reads Avri Altman
2021-01-27 15:12 ` [PATCH 5/8] scsi: ufshpb: Region inactivation in host mode Avri Altman
2021-01-27 15:12 ` [PATCH 6/8] scsi: ufshpb: Add hpb dev reset response Avri Altman
2021-01-27 15:12 ` [PATCH 7/8] scsi: ufshpb: Add "Cold" regions timer Avri Altman
2021-01-27 15:23   ` Greg KH
2021-01-31  7:30     ` Avri Altman
2021-01-27 15:12 ` [PATCH 8/8] scsi: ufshpb: Add support for host control mode Avri Altman
     [not found] ` <CGME20210127151311epcas2p1696c2b73f3b4777ac0e7f603790b552f@epcms2p2>
2021-02-01  3:51   ` [PATCH 3/8] scsi: ufshpb: Add region's reads counter Daejun Park
2021-02-01  7:12     ` Avri Altman
2021-02-01  7:30       ` gregkh
2021-02-01  7:51         ` Avri Altman
2021-02-01  8:01           ` gregkh
2021-02-01  8:17             ` Avri Altman
2021-02-01  8:44               ` gregkh
2021-02-01  9:04                 ` Avri Altman
     [not found] ` <CGME20210127151318epcas2p1cdad0118807907e55b8d8277daec6f1a@epcms2p4>
2021-02-01  3:59   ` Daejun Park [this message]
2021-02-01  7:14     ` [PATCH 4/8] scsi: ufshpb: Make eviction depends on region's reads Avri Altman
     [not found] ` <CGME20210127151338epcas2p2c323a148587e311f7f5e19b4edbe43ec@epcms2p4>
2021-02-01  5:10   ` [PATCH 6/8] scsi: ufshpb: Add hpb dev reset response Daejun Park
2021-02-01  7:20     ` Avri Altman

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