From: Christoph Hellwig <hch@lst.de>
To: Damien Le Moal <Damien.LeMoal@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
Jens Axboe <axboe@kernel.dk>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
Keith Busch <Keith.Busch@wdc.com>,
Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
Subject: Re: [PATCH v4 7/8] block: introduce blk_queue_clear_zone_settings()
Date: Thu, 28 Jan 2021 10:33:10 +0100 [thread overview]
Message-ID: <20210128093310.GB3212@lst.de> (raw)
In-Reply-To: <BL0PR04MB6514021E07E861070BDD852EE7BA9@BL0PR04MB6514.namprd04.prod.outlook.com>
On Thu, Jan 28, 2021 at 09:32:22AM +0000, Damien Le Moal wrote:
> On 2021/01/28 18:21, Christoph Hellwig wrote:
> > On Thu, Jan 28, 2021 at 01:47:32PM +0900, Damien Le Moal wrote:
> >> Introduce the internal function blk_queue_clear_zone_settings() to
> >> cleanup all limits and resources related to zoned block devices. This
> >> new function is called from blk_queue_set_zoned() when a disk zoned
> >> model is set to BLK_ZONED_NONE. This particular case can happens when a
> >> partition is created on a host-aware scsi disk.
> >
> > Shouldn't we just do all this work when blk_queue_set_zoned is called
> > with a BLK_ZONED_NONE argument? That seems like the more obvious API
> > to me.
>
> That is what I did. blk_queue_set_zoned() calls blk_queue_clear_zone_settings()
> for BLK_ZONED_NONE case. I simply did not open code the cleanups in that
> functions because it is simpler to stub only blk_queue_clear_zone_settings()
> rather than having conditionals in blk_queue_set_zoned(). That also puts the
> cleanup function together with the code that allocates most resources in
> blk-zoned.c. Easier to not overlook something.
Ok, looks good to me then:
Reviewed-by: Christoph Hellwig <hch@lst.de>
next prev parent reply other threads:[~2021-01-28 9:36 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-28 4:47 [PATCH v4 0/8] block: add zone write granularity limit Damien Le Moal
2021-01-28 4:47 ` [PATCH v4 1/8] block: document zone_append_max_bytes attribute Damien Le Moal
2021-01-28 10:20 ` Johannes Thumshirn
2021-01-28 4:47 ` [PATCH v4 2/8] nvme: cleanup zone information initialization Damien Le Moal
2021-01-28 9:17 ` Christoph Hellwig
2021-01-28 9:27 ` Damien Le Moal
2021-01-28 9:32 ` Christoph Hellwig
2021-01-28 4:47 ` [PATCH v4 3/8] nullb: use blk_queue_set_zoned() to setup zoned devices Damien Le Moal
2021-01-28 5:12 ` Chaitanya Kulkarni
2021-01-28 9:17 ` Christoph Hellwig
2021-01-28 11:17 ` Johannes Thumshirn
2021-01-28 4:47 ` [PATCH v4 4/8] block: use blk_queue_set_zoned in add_partition() Damien Le Moal
2021-01-28 5:16 ` Chaitanya Kulkarni
2021-01-28 9:17 ` Christoph Hellwig
2021-01-28 11:28 ` Johannes Thumshirn
2021-01-28 4:47 ` [PATCH v4 5/8] block: introduce zone_write_granularity limit Damien Le Moal
2021-01-28 9:19 ` Christoph Hellwig
2021-01-28 11:32 ` Johannes Thumshirn
2021-02-05 2:54 ` Martin K. Petersen
2021-01-28 4:47 ` [PATCH v4 6/8] zonefs: use zone write granularity as block size Damien Le Moal
2021-01-28 5:17 ` Chaitanya Kulkarni
2021-01-28 11:33 ` Johannes Thumshirn
2021-01-28 4:47 ` [PATCH v4 7/8] block: introduce blk_queue_clear_zone_settings() Damien Le Moal
2021-01-28 5:26 ` Chaitanya Kulkarni
2021-01-28 9:21 ` Christoph Hellwig
2021-01-28 9:32 ` Damien Le Moal
2021-01-28 9:33 ` Christoph Hellwig [this message]
2021-01-28 11:43 ` Johannes Thumshirn
2021-01-28 4:47 ` [PATCH v4 8/8] sd_zbc: clear zone resources for non-zoned case Damien Le Moal
2021-01-28 5:38 ` Chaitanya Kulkarni
2021-01-28 5:40 ` Damien Le Moal
2021-01-28 9:24 ` Christoph Hellwig
2021-01-28 9:36 ` Damien Le Moal
2021-01-28 11:48 ` Johannes Thumshirn
2021-02-05 2:56 ` Martin K. Petersen
2021-02-04 8:47 ` [PATCH v4 0/8] block: add zone write granularity limit Damien Le Moal
2021-02-08 17:17 ` Christoph Hellwig
2021-02-10 14:45 ` Jens Axboe
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