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ioctl_ficlonerange.2: Add VERSIONS section 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2016-06-08 12:19:19 +02:00
parent 603fc95a2b
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man2/ioctl_ficlonerange.2
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@ -117,13 +117,15 @@ Swap files cannot share storage.
.B EOPNOTSUPP
This can appear if the filesystem does not support reflinking either file
descriptor.
.SH VERSIONS
These ioctl operations first appeared in Linux 4.5.
They were previously known as
.B BTRFS_IOC_CLONE
and
.BR BTRFS_IOC_CLONE_RANGE ,
and were private to Btrfs.
.SH CONFORMING TO
This API is Linux-specific.
This ioctl was previously known as
.B BTRFS_IOC_CLONE_RANGE
and was private to Btrfs.
.fi
.in
.SH NOTES
Because a copy-on-write operation requires the allocation of new storage, the
.BR fallocate (2)