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Date: Tue, 16 Apr 2024 10:46:41 +0000
From: Shinichiro Kawasaki <shinichiro.kawasaki@....com>
To: Chaitanya Kulkarni <chaitanyak@...dia.com>
CC: "hch@....de" <hch@....de>, Saranya Muruganandam <saranyamohan@...gle.com>,
	"axboe@...nel.dk" <axboe@...nel.dk>, "linux-block@...r.kernel.org"
	<linux-block@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "stable@...r.kernel.org"
	<stable@...r.kernel.org>, "tj@...nel.org" <tj@...nel.org>,
	"yukuai1@...weicloud.com" <yukuai1@...weicloud.com>
Subject: Re: [PATCH] block: Fix BLKRRPART regression

On Apr 16, 2024 / 09:10, Chaitanya Kulkarni wrote:
> On 4/12/2024 12:12 AM, Shinichiro Kawasaki wrote:
> > On Apr 10, 2024 / 23:39, Saranya Muruganandam wrote:
> >> The BLKRRPART ioctl used to report errors such as EIO before we changed
> >> the blkdev_reread_part() logic.
> >>
> >> Add a flag and capture the errors returned by bdev_disk_changed()
> >> when the flag is set. Set this flag for the BLKRRPART path when we
> >> want the errors to be reported when rereading partitions on the disk.
> >>
> >> Link: https://lore.kernel.org/all/20240320015134.GA14267@lst.de/
> >> Suggested-by: Christoph Hellwig <hch@....de>
> >> Tested: Tested by simulating failure to the block device and will
> >> propose a new test to blktests.
> >> Fixes: 4601b4b130de ("block: reopen the device in blkdev_reread_part")
> >> Reported-by: Saranya Muruganandam <saranyamohan@...gle.com>
> >> Signed-off-by: Saranya Muruganandam <saranyamohan@...gle.com>
> > 
> > The change looks good to me. I also confirmed the fix with the new,
> > corresponding blktests test case.
> > 
> > Reviewed-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@....com>
> > Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@....com>
> 
> which patch is the final one ? Is it this one or the one posted with
> title :-
> 
> "block: propagate partition scanning errors to the BLKRRPART ioctl​" ?
> 
> Please clarify so I can make sure to run some tests at my end.

The patch I reviewed and tested is the one that Saranya reflected my comment.
It is found here:

    https://lore.kernel.org/linux-block/20240410233932.256871-1-saranyamohan@google.com/

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