Re: [PATCH] block: Fix BLKRRPART regression

Shinichiro Kawasaki
2024-04-12T07:12:47Z

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@lst.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@google.com>
> Signed-off-by: Saranya Muruganandam <saranyamohan@google.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@wdc.com>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>