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Fix FREEZE/THAW compat_ioctl regression

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Commit 8e961870bb 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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2009-02-26 21:32:51 +01:00 • committed by Linus Torvalds
commit 5cf8cf4146
1 changed files with 3 additions and 0 deletions
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3
fs/compat_ioctl.c
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@ -1913,6 +1913,9 @@ COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */
/* 0x00 */ /* 0x00 */
COMPATIBLE_IOCTL(FIBMAP) COMPATIBLE_IOCTL(FIBMAP)
COMPATIBLE_IOCTL(FIGETBSZ) COMPATIBLE_IOCTL(FIGETBSZ)
/* 'X' - originally XFS but some now in the VFS */
COMPATIBLE_IOCTL(FIFREEZE)
COMPATIBLE_IOCTL(FITHAW)
/* RAID */ /* RAID */
COMPATIBLE_IOCTL(RAID_VERSION) COMPATIBLE_IOCTL(RAID_VERSION)
COMPATIBLE_IOCTL(GET_ARRAY_INFO) COMPATIBLE_IOCTL(GET_ARRAY_INFO)