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From: Christoph Hellwig <hch@infradead.org>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Changheun Lee <nanich.lee@samsung.com>,
	damien.lemoal@wdc.com, Avri.Altman@wdc.com,
	Johannes.Thumshirn@wdc.com, alex_y_xu@yahoo.ca,
	alim.akhtar@samsung.com, asml.silence@gmail.com, axboe@kernel.dk,
	bgoncalv@redhat.com, cang@codeaurora.org,
	gregkh@linuxfoundation.org, hch@infradead.org,
	jaegeuk@kernel.org, jejb@linux.ibm.com, jisoo2146.oh@samsung.com,
	junho89.kim@samsung.com, linux-block@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
	martin.petersen@oracle.com, ming.lei@redhat.com,
	mj0123.lee@samsung.com, osandov@fb.com, patchwork-bot@kernel.org,
	seunghwan.hyun@samsung.com, sookwan7.kim@samsung.com,
	tj@kernel.org, tom.leiming@gmail.com, woosung2.lee@samsung.com,
	yi.zhang@redhat.com, yt0928.kim@samsung.com
Subject: Re: [PATCH v12 1/3] bio: control bio max size
Date: Mon, 7 Jun 2021 07:35:09 +0100	[thread overview]
Message-ID: <YL2+HeyKVMHsLNe2@infradead.org> (raw)
In-Reply-To: <63afd2d3-9fa3-9f90-a2b3-37235739f5e2@acm.org>

On Fri, Jun 04, 2021 at 07:52:35AM -0700, Bart Van Assche wrote:
>  Damien is right. bd_disk can be NULL. From

bd_disk is initialized in bdev_alloc, so it should never be NULL.
bi_bdev OTOH is only set afer bio_add_page in various places or not at
all in case of passthrough bios.  Which is a bit of a mess and I have
plans to fix it.

  reply	other threads:[~2021-06-07  6:36 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20210604052157epcas1p2e5eebb52d08b06174696290e11fdd5a4@epcas1p2.samsung.com>
2021-06-04  5:03 ` [PATCH v12 0/3] bio: control bio max size Changheun Lee
     [not found]   ` <CGME20210604052159epcas1p4370bee98aad882ab335dda1565db94fb@epcas1p4.samsung.com>
2021-06-04  5:03     ` [PATCH v12 1/3] " Changheun Lee
2021-06-04  7:24       ` Damien Le Moal
     [not found]         ` <CGME20210604075331epcas1p13bb57f9ddfc7b112dec1ba8cf40fdc74@epcas1p1.samsung.com>
2021-06-04  7:34           ` Changheun Lee
2021-06-04  8:01             ` Damien Le Moal
     [not found]               ` <CGME20210604094209epcas1p26368dd18011bb2761529432cf2656a9f@epcas1p2.samsung.com>
2021-06-04  9:23                 ` Changheun Lee
2021-06-04 14:52             ` Bart Van Assche
2021-06-07  6:35               ` Christoph Hellwig [this message]
2021-06-07 16:46                 ` Bart Van Assche
2021-06-08  5:22                   ` Christoph Hellwig
2021-06-07  6:32       ` Christoph Hellwig
     [not found]         ` <CGME20210607110122epcas1p4557bcbc7abac791f2557cc0d317214fd@epcas1p4.samsung.com>
2021-06-07 10:42           ` Changheun Lee
     [not found]   ` <CGME20210604052200epcas1p10754a3187476a0fcbfcc89c103a6d436@epcas1p1.samsung.com>
2021-06-04  5:03     ` [PATCH v12 2/3] blk-sysfs: add max_bio_bytes Changheun Lee
     [not found]   ` <CGME20210604052201epcas1p41a27660b20d70b7fc4295c8f131d33ce@epcas1p4.samsung.com>
2021-06-04  5:03     ` [PATCH v12 3/3] ufs: set max_bio_bytes with queue max sectors Changheun Lee
2021-06-04 16:11       ` Bart Van Assche
     [not found]         ` <CGME20210607094031epcas1p1f4a9ee01eaa4652ba0e8eb6a4964c952@epcas1p1.samsung.com>
2021-06-07  9:21           ` Changheun Lee
2021-06-04  6:41   ` [PATCH v12 0/3] bio: control bio max size Can Guo
2021-06-04 16:13   ` Bart Van Assche
     [not found]     ` <CGME20210607101609epcas1p392324f6d215e329d632a615c4b1adf4c@epcas1p3.samsung.com>
2021-06-07  9:57       ` Changheun Lee

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