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From:   David Howells <dhowells@redhat.com>
In-Reply-To: <20230207133916.3109147-1-dhowells@redhat.com>
References: <20230207133916.3109147-1-dhowells@redhat.com>
To:     Jens Axboe <axboe@kernel.dk>
Cc:     dhowells@redhat.com, Al Viro <viro@zeniv.linux.org.uk>,
        Christoph Hellwig <hch@infradead.org>,
        Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>,
        Jeff Layton <jlayton@kernel.org>,
        David Hildenbrand <david@redhat.com>,
        Jason Gunthorpe <jgg@nvidia.com>,
        Logan Gunthorpe <logang@deltatee.com>,
        Hillf Danton <hdanton@sina.com>, linux-fsdevel@vger.kernel.org,
        linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
Subject: Re: [PATCH 0/2] iomap, splice: Fix DIO/splice_read race memory corruptor and kill off ITER_PIPE
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Date:   Tue, 07 Feb 2023 15:22:02 +0000
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Hi Jens,

> [!] Jens: Note that there's a window in the linux-block/for-next branch
>     with a memory corruptor bug that someone bisecting might hit.  These
>     two patches would be better pushed to the front of my iov-extract
>     branch to eliminate the window.  Would it be possible for you to
>     replace my branch in your for-next branch at this point?

In case you would prefer to do this, I've updated my iov-extract[*] branch=
 to
put these two patches at the bottom and pushed the other patches back on t=
op
of it, dropping the pipe extraction bits from the iov_iter_extract_pages()
patch in case you want to use that.

I've also removed the FOLL_PIN that was in that patch as it's implied by
calling pin_user_pages_fast() and is being made private to mm/.

I can also repost the full set of patches if that would be useful.

David

[*] https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/=
log/?h=3Diov-extract