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xfs: fix direction in XFS_IOC_EXCHANGE_RANGE

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The kernel reads userspace's buffer but does not write it back.
Therefore this is really an _IOW ioctl.  Change this before 6.10 final
releases.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
This commit is contained in:
Darrick J. Wong 2024-06-20 15:05:26 -07:00 committed by Chandan Babu R
parent 1ec9307fc0
commit dc5e1cbae2
1 changed files with 1 additions and 1 deletions
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fs/xfs/libxfs/xfs_fs.h
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@ -996,7 +996,7 @@ struct xfs_getparents_by_handle {
#define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom)
#define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req)
#define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req)
#define XFS_IOC_EXCHANGE_RANGE _IOWR('X', 129, struct xfs_exchange_range)
#define XFS_IOC_EXCHANGE_RANGE _IOW ('X', 129, struct xfs_exchange_range)
/* XFS_IOC_GETFSUUID ---------- deprecated 140 */