From: Andi Kleen <andi@firstfloor.org>
To: Jamie Lokier <jamie@shareable.org>
Cc: Andi Kleen <andi@firstfloor.org>,
Vitaly Mayatskikh <v.mayatskih@gmail.com>,
Josef Bacik <josef@redhat.com>,
sandeen@redhat.com, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] Perform check in iov_iter_fault_in_readable() by check_readable_bytes()
Date: Fri, 15 May 2009 16:01:37 +0200 [thread overview]
Message-ID: <20090515140137.GF16682@one.firstfloor.org> (raw)
In-Reply-To: <20090515134315.GB8235@shareable.org>
> It would be quite nice if it were safe to call read(), get EFAULT
Even with that patch it is not safe, not even for write, because
it's racy.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2009-05-15 13:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-14 16:18 [PATCH 0/2] sys_write() should write all valid data Vitaly Mayatskikh
2009-05-14 16:19 ` [PATCH 1/2] Introduce check_readable_bytes() Vitaly Mayatskikh
2009-05-14 17:40 ` Josef Bacik
2009-05-14 17:57 ` Vitaly Mayatskikh
2009-05-14 16:19 ` [PATCH 2/2] Perform check in iov_iter_fault_in_readable() by check_readable_bytes() Vitaly Mayatskikh
2009-05-15 6:56 ` Andi Kleen
2009-05-15 7:56 ` Vitaly Mayatskikh
2009-05-15 9:38 ` Andi Kleen
2009-05-15 11:56 ` Vitaly Mayatskikh
2009-05-15 12:19 ` Andi Kleen
2009-05-15 13:43 ` Jamie Lokier
2009-05-15 14:01 ` Andi Kleen [this message]
2009-05-15 14:37 ` Jamie Lokier
2009-05-18 8:31 ` Alan Cox
2009-05-18 9:48 ` Jamie Lokier
2009-05-18 10:03 ` Alan Cox
2009-05-18 10:16 ` Andi Kleen
2009-05-19 8:55 ` Pavel Machek
2009-05-14 18:02 ` [PATCH 0/2] sys_write() should write all valid data Josef Bacik
2009-05-14 18:48 ` Vitaly Mayatskikh
2009-05-14 19:05 ` Josef Bacik
2009-05-15 6:52 ` Andi Kleen
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