[RFC PATCH 0/2] autofs: fix autofs_v5_packet dlivery in compat mode
From: Stanislav Kinsburskiy
Date: Fri Sep 01 2017 - 07:57:36 EST
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...
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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(-)