Commit bf2307b1 authored by Brian Foster's avatar Brian Foster Committed by Darrick J. Wong
Browse files

xfs: fold perag loop iteration logic into helper function 



Fold the loop iteration logic into a helper in preparation for
further fixups. No functional change in this patch.

Signed-off-by: default avatarBrian Foster <bfoster@redhat.com>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
Signed-off-by: default avatarDarrick J. Wong <djwong@kernel.org>
parent 53eb47b4

fs/xfs/libxfs/xfs_ag.h

+13 −3
Original line number Diff line number Diff line
@@ -124,12 +124,22 @@ void xfs_perag_put(struct xfs_perag *pag); 
 * for_each_perag_from() because they terminate at sb_agcount where there are

 * no perag structures in tree beyond end_agno.

 */

static inline struct xfs_perag *

xfs_perag_next(

	struct xfs_perag	*pag,

	xfs_agnumber_t		*next_agno)

{

	struct xfs_mount	*mp = pag->pag_mount;



	*next_agno = pag->pag_agno + 1;

	xfs_perag_put(pag);

	return xfs_perag_get(mp, *next_agno);

}



#define for_each_perag_range(mp, next_agno, end_agno, pag) \

	for ((pag) = xfs_perag_get((mp), (next_agno)); \

		(pag) != NULL && (next_agno) <= (end_agno); \

		(next_agno) = (pag)->pag_agno + 1, \

		xfs_perag_put(pag), \

		(pag) = xfs_perag_get((mp), (next_agno)))

		(pag) = xfs_perag_next((pag), &(next_agno)))



#define for_each_perag_from(mp, next_agno, pag) \

	for_each_perag_range((mp), (next_agno), (mp)->m_sb.sb_agcount, (pag))