man: document XFS_FSOP_GEOM_FLAGS_EXCHRANGE

Document this new feature flag in the fs geometry ioctl.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

diff --git a/man/man2/ioctl_xfs_fsgeometry.2 b/man/man2/ioctl_xfs_fsgeometry.2
index f59a6e8a6a203287db79d5804d4d0317856bcdc7..54fd89390883c1ac671e5be477d4a56bd5a9502a 100644 (file)
--- a/man/man2/ioctl_xfs_fsgeometry.2
+++ b/man/man2/ioctl_xfs_fsgeometry.2
@@ -211,6 +211,9 @@ Filesystem stores reverse mappings of blocks to owners.
 .TP
 .B XFS_FSOP_GEOM_FLAGS_REFLINK
 Filesystem supports sharing blocks between files.
+.TP
+.B XFS_FSOP_GEOM_FLAGS_EXCHRANGE
+Filesystem can exchange file contents atomically via XFS_IOC_EXCHANGE_RANGE.
 .RE
 .SH XFS METADATA HEALTH REPORTING
 .PP