From: Andrew Morton <akpm@linux-foundation.org>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: linux-fsdevel@vger.kernel.org, David Sterba <dsterba@suse.com>,
Wonhyuk Yang <vvghjk1234@gmail.com>
Subject: Re: [PATCH] mm: Fix readahead_page_batch for retry entries
Date: Tue, 3 Nov 2020 17:10:54 -0800 [thread overview]
Message-ID: <20201103171054.7d80b3010cac0bee705d0ae7@linux-foundation.org> (raw)
In-Reply-To: <20201103142852.8543-1-willy@infradead.org>
On Tue, 3 Nov 2020 14:28:52 +0000 "Matthew Wilcox (Oracle)" <willy@infradead.org> wrote:
> Both btrfs and fuse have reported faults caused by seeing a retry
> entry instead of the page they were looking for. This was caused
> by a missing check in the iterator.
Ambiguous. What sort of "faults"? Kernel pagefaults which cause
oopses?
It would be helpful to to provide sufficient info so that a reader of
this changelog can recognize whether this patch might fix some problem
which is being observed.
> Reported-by: David Sterba <dsterba@suse.com>
> Reported-by: Wonhyuk Yang <vvghjk1234@gmail.com>
Perhaps via links to these reports.
> Fixes: 042124cc64c3 ("mm: add new readahead_control API")
So I'm assuming we need a cc:stable, but it isn't yet fully clear?
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
>
> diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
Please don't forget the "^---$" separator, thanks.
next prev parent reply other threads:[~2020-11-04 1:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-03 14:28 [PATCH] mm: Fix readahead_page_batch for retry entries Matthew Wilcox (Oracle)
2020-11-04 1:10 ` Andrew Morton [this message]
2020-11-04 14:27 ` David Sterba
2020-11-05 2:33 ` Wonhyuk Yang
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