Subject: Re: Kernels v4.9+ cause short reads of block devices
To: Linus Torvalds <torvalds@linux-foundation.org>,
        Andreas Dilger <adilger@dilger.ca>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Wei Fang <fangwei1@huawei.com>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        Mark Fasheh <mfasheh@versity.com>, Joel Becker <jlbec@evilplan.org>,
        Dave Kleikamp <shaggy@kernel.org>
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From: Doug Nazar <nazard@nazar.ca>
Message-ID: <67f6a756-dcb5-96d1-f6e3-0536e29f96d9@nazar.ca>
Date: Tue, 29 Aug 2017 06:40:13 -0400
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On 8/27/17 3:47 PM, Linus Torvalds wrote:
> Note to people: I just committed the patch to update MAX_LFS_FILESIZE.
> I made it use the simpler (and clearer) calculation of
>
>      ((loff_t)ULONG_MAX << PAGE_SHIFT)
>
> for the 32-bit case, and I did *not* change any other users.

Not a problem... I got caught trying to find out why 4.13 hangs on a
warm reset. It has really slowed down my testing having towalk couple
of floors for every reboot.

Doug