Re: [PATCH 13/63] xfs: adjust refcount of an extent of blocks in refcount btree

+#define RCNEXT(rc)	((rc).rc_startblock + (rc).rc_blockcount)

+#define IS_VALID_RCEXT(ext)	((ext).rc_startblock != NULLAGBLOCK)

I would turn these into inline helpers with nice lower case names.
Not critical for the merge, though, so:

Signed-off-by: Christoph Hellwig <hch@lst.de>