[Ocfs2-devel] [PATCH 1/3] fs: Document the reflink(2) system call.

[jim owens]

Jamie,

Joel Becker wrote:
> 	"Shares the data extents of the source file".

so with that clarification, do you now agree with this

 > 1) is only for filesystems with COW operation,
 >    if the fs does not support COW it returns ENOSYS.

being a requirement so the user can trust that calling
reflink() uses minimal space (inode/extentmap) and only
a change to the file will trigger a data copy.

jim