From: "Ewan D. Milne" <emilne@redhat.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: axboe@kernel.dk, Chaitanya.Kulkarni@wdc.com, mst@redhat.com,
James Bottomley <jejb@linux.ibm.com>,
linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org,
linux-block@vger.kernel.org, ssomesh@amazon.com,
Balbir Singh <sblbir@amazon.com>,
hch@lst.de
Subject: Re: [resend v1 5/5] drivers/scsi/sd.c: Convert to use disk_set_capacity
Date: Wed, 08 Jan 2020 16:27:55 -0500 [thread overview]
Message-ID: <a267a03595c613a4c44d379706d8f1a5d6e30035.camel@redhat.com> (raw)
In-Reply-To: <yq1ftgq1wlt.fsf@oracle.com>
On Tue, 2020-01-07 at 21:59 -0500, Martin K. Petersen wrote:
> Ewan,
>
> > Yes, there are some storage arrays that refuse a READ CAPACITY
> > command in certain ALUA states so you can't get the new capacity
> > anyway.
>
> Yep. And some devices will temporarily return a capacity of
> 0xFFFFFFFF... If we were to trigger a filesystem resize, the results
> would be disastrous.
>
> > It might be nice to improve this, though, there are some cases now
> > where we set the capacity to zero when we revalidate and can't get the
> > value.
>
> If you have a test case, let's fix it.
>
This happens with NVMe fabric devices, I thought. I'll check.
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next prev parent reply other threads:[~2020-01-08 21:28 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-02 7:53 [resend v1 0/5] Add support for block disk resize notification Balbir Singh
2020-01-02 7:53 ` [resend v1 1/5] block/genhd: Notify udev about capacity change Balbir Singh
2020-01-03 6:16 ` Chaitanya Kulkarni
2020-01-04 4:44 ` Singh, Balbir
2020-01-04 22:32 ` Chaitanya Kulkarni
2020-01-08 15:02 ` hch
2020-01-07 3:32 ` Martin K. Petersen
2020-01-07 22:30 ` Singh, Balbir
2020-01-08 3:15 ` Martin K. Petersen
2020-01-08 15:04 ` hch
2020-01-21 19:57 ` Singh, Balbir
2020-01-02 7:53 ` [resend v1 2/5] drivers/block/virtio_blk.c: Convert to use disk_set_capacity Balbir Singh
2020-01-02 7:53 ` [resend v1 3/5] drivers/block/xen-blkfront.c: " Balbir Singh
2020-01-02 7:53 ` [resend v1 4/5] drivers/nvme/host/core.c: " Balbir Singh
2020-01-04 22:27 ` Chaitanya Kulkarni
2020-01-06 0:46 ` Singh, Balbir
2020-01-08 15:04 ` hch
2020-01-09 3:33 ` Martin K. Petersen
2020-01-09 13:12 ` Ewan D. Milne
2020-01-21 19:52 ` Singh, Balbir
2020-01-02 7:53 ` [resend v1 5/5] drivers/scsi/sd.c: " Balbir Singh
2020-01-02 22:21 ` Chaitanya Kulkarni
2020-01-03 0:23 ` Singh, Balbir
2020-01-07 3:48 ` Martin K. Petersen
2020-01-07 3:57 ` James Bottomley
2020-01-07 4:39 ` Martin K. Petersen
2020-01-07 21:37 ` Ewan D. Milne
2020-01-08 2:59 ` Martin K. Petersen
2020-01-08 21:27 ` Ewan D. Milne [this message]
2020-01-07 22:28 ` Singh, Balbir
2020-01-08 3:15 ` Martin K. Petersen
2020-01-08 4:20 ` Singh, Balbir
2020-01-08 21:32 ` Ewan D. Milne
2020-01-08 15:06 ` Christoph Hellwig
2020-01-09 2:53 ` Martin K. Petersen
2020-01-06 5:59 ` [resend v1 0/5] Add support for block disk resize notification Bob Liu
2020-01-06 8:47 ` Singh, Balbir
2020-01-06 9:08 ` Bob Liu
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