ocfs2: Make xattr reflink work with new local alloc reservation.
The new reservation code in local alloc has add the limitation that the caller should handle the case that the local alloc doesn't give use enough contiguous clusters. It make the old xattr reflink code broken. So this patch udpate the xattr reflink code so that it can handle the case that local alloc give us one cluster at a time. Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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