From: Christoph Hellwig <hch@lst.de>
To: Takashi Sato <t-sato@yk.jp.nec.com>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] fix FREEZE/THAW compat_ioctl regression
Date: Mon, 16 Feb 2009 13:57:25 +0100 [thread overview]
Message-ID: <20090216125725.GA3420@lst.de> (raw)
Commit 8e961870bb9804110d5c8211d5d9d500451c4518 removed the FREEZE/THAW
handling in xfs_compat_ioctl but never added any compat handler back, so
now any freeze/thaw request from a 32-bit binary ond 64-bit userspace
will fail.
As these ioctls are 32/64-bit compatible two simple COMPATIBLE_IOCTL
entries in fs/compat_ioctl.c will do the job.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Index: xfs/fs/compat_ioctl.c
===================================================================
--- xfs.orig/fs/compat_ioctl.c 2009-02-16 12:48:23.000000000 +0000
+++ xfs/fs/compat_ioctl.c 2009-02-16 12:49:34.000000000 +0000
@@ -1913,6 +1913,9 @@
/* 0x00 */
COMPATIBLE_IOCTL(FIBMAP)
COMPATIBLE_IOCTL(FIGETBSZ)
+/* 'X' - originally XFS but some now in the VFS */
+COMPATIBLE_IOCTL(FIFREEZE)
+COMPATIBLE_IOCTL(FITHAW)
/* RAID */
COMPATIBLE_IOCTL(RAID_VERSION)
COMPATIBLE_IOCTL(GET_ARRAY_INFO)
next reply other threads:[~2009-02-16 12:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-16 12:57 Christoph Hellwig [this message]
2009-02-20 9:51 ` [PATCH] fix FREEZE/THAW compat_ioctl regression Christoph Hellwig
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