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From: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
To: raven@themaw.net
Cc: autofs@vger.kernel.org, linux-kernel@vger.kernel.org,
	devel@openvz.org, ldv@altlinux.org
Subject: [RFC PATCH 0/2] autofs: fix autofs_v5_packet dlivery in compat mode
Date: Fri, 01 Sep 2017 15:21:39 +0400	[thread overview]
Message-ID: <20170901110906.2669.1577.stgit@localhost.localdomain> (raw)

The problem is that in compat mode struct autofs_v5_packet has to have different size
(i.e. 4 bytes less).

This is RFC because:
1) This issue is hidden, because autofs pipe has O_DIRECT and the rest of the
epacket is truncated when read.
2) X86 arch doesn't have is_compat_task() helper
3) It's now clear, what to do if "pgrp" option is specified.

The following series implements...

---

Stanislav Kinsburskiy (2):
      autofs: set compat flag on sbi when daemon uses 32bit addressation
      autofs: sent 32-bit sized packet for 32-bit process


 fs/autofs4/autofs_i.h  |    3 +++
 fs/autofs4/dev-ioctl.c |    3 +++
 fs/autofs4/inode.c     |    4 +++-
 fs/autofs4/waitq.c     |    5 +++++
 4 files changed, 14 insertions(+), 1 deletion(-)
--
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             reply	other threads:[~2017-09-01 11:21 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-01 11:21 Stanislav Kinsburskiy [this message]
2017-09-01 11:21 ` [RFC PATCH 1/2] autofs: set compat flag on sbi when daemon uses 32bit addressation Stanislav Kinsburskiy
2017-09-14  0:38   ` Ian Kent
2017-09-14  9:24     ` Stanislav Kinsburskiy
2017-09-14 11:29       ` Ian Kent
2017-09-14 11:39         ` Stanislav Kinsburskiy
2017-09-14 11:45           ` Ian Kent
2017-09-14 11:51             ` Stanislav Kinsburskiy
2017-09-01 11:21 ` [RFC PATCH 2/2] autofs: sent 32-bit sized packet for 32-bit process Stanislav Kinsburskiy
2017-09-14  0:32 ` [RFC PATCH 0/2] autofs: fix autofs_v5_packet dlivery in compat mode Ian Kent

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