Re: [PATCH 0/5] block: replace incorrect uses of GENHD_FL_UP

From: luomeng
Date: Wed Aug 11 2021 - 22:15:48 EST




在 2021/8/11 13:19, Christoph Hellwig 写道:
On Wed, Aug 11, 2021 at 10:42:20AM +0800, luomeng wrote:
Hi:
When the fuzz test injected memory allocation failed, I had this BUG_ON:
kernel BUG at fs/sysfs/group.c:116.
The cause of the bug_ON is that the add_disk memory fails to be allocated
but no error processing is performed.
I find your patches add error processing. So what is your next step with
these patches.
I have one more pending series on top of this one I need to submit here:

http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/alloc_disk

to make sure the disk always has a valid queue reference. After that
Luis work to return an error from add_disk should be much easier bause
we not have defined state.
.
Thanks.

So how about this series, when this series will merge into linux master?

And do you submit these patches ( http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/alloc_disk) on liunx?

Luo Meng