6 files changed, 25 insertions, 20 deletions

diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 2afa6bc80e24..029078167b64 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -1838,6 +1838,23 @@ xfs_alloc_longest_free_extent(
 	return pag->pagf_flcount > 0 || pag->pagf_longest > 0;
 }
 
+unsigned int
+xfs_alloc_min_freelist(
+	struct xfs_mount	*mp,
+	struct xfs_perag	*pag)
+{
+	unsigned int		min_free;
+
+	/* space needed by-bno freespace btree */
+	min_free = min_t(unsigned int, pag->pagf_levels[XFS_BTNUM_BNOi] + 1,
+				       mp->m_ag_maxlevels);
+	/* space needed by-size freespace btree */
+	min_free += min_t(unsigned int, pag->pagf_levels[XFS_BTNUM_CNTi] + 1,
+				       mp->m_ag_maxlevels);
+
+	return min_free;
+}
+
 /*
  * Check if the operation we are fixing up the freelist for should go ahead or
  * not. If we are freeing blocks, we always allow it, otherwise the allocation
@@ -1912,7 +1929,7 @@ xfs_alloc_fix_freelist(
 		goto out_agbp_relse;
 	}
 
-	need = XFS_MIN_FREELIST_PAG(pag, mp);
+	need = xfs_alloc_min_freelist(mp, pag);
 	if (!xfs_alloc_space_available(args, need, flags))
 		goto out_agbp_relse;
 
@@ -1931,9 +1948,8 @@ xfs_alloc_fix_freelist(
 		}
 	}
 
-
 	/* If there isn't enough total space or single-extent, reject it. */
-	need = XFS_MIN_FREELIST_PAG(pag, mp);
+	need = xfs_alloc_min_freelist(mp, pag);
 	if (!xfs_alloc_space_available(args, need, flags))
 		goto out_agbp_relse;
 
diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h
index 8815fc30f83d..7d59b8f4bf9e 100644
--- a/fs/xfs/libxfs/xfs_alloc.h
+++ b/fs/xfs/libxfs/xfs_alloc.h
@@ -130,6 +130,8 @@ typedef struct xfs_alloc_arg {
 
 xfs_extlen_t xfs_alloc_longest_free_extent(struct xfs_mount *mp,
 		struct xfs_perag *pag, xfs_extlen_t need);
+unsigned int xfs_alloc_min_freelist(struct xfs_mount *mp,
+		struct xfs_perag *pag);
 
 /*
  * Compute and fill in value of m_ag_maxlevels.
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 1ad4f1a62ce0..d567159a3343 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -3508,7 +3508,7 @@ xfs_bmap_longest_free_extent(
 	}
 
 	longest = xfs_alloc_longest_free_extent(mp, pag,
-						XFS_MIN_FREELIST_PAG(pag, mp));
+					xfs_alloc_min_freelist(mp, pag));
 	if (*blen < longest)
 		*blen = longest;
 
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 4daaa662337b..487a6e0d0103 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -758,19 +758,6 @@ typedef struct xfs_agfl {
 
 #define XFS_AGFL_CRC_OFF	offsetof(struct xfs_agfl, agfl_crc)
 
-
-#define	XFS_AG_MAXLEVELS(mp)		((mp)->m_ag_maxlevels)
-#define	XFS_MIN_FREELIST_RAW(bl,cl,mp)	\
-	(MIN(bl + 1, XFS_AG_MAXLEVELS(mp)) + MIN(cl + 1, XFS_AG_MAXLEVELS(mp)))
-#define	XFS_MIN_FREELIST(a,mp)		\
-	(XFS_MIN_FREELIST_RAW(		\
-		be32_to_cpu((a)->agf_levels[XFS_BTNUM_BNOi]), \
-		be32_to_cpu((a)->agf_levels[XFS_BTNUM_CNTi]), mp))
-#define	XFS_MIN_FREELIST_PAG(pag,mp)	\
-	(XFS_MIN_FREELIST_RAW(		\
-		(unsigned int)(pag)->pagf_levels[XFS_BTNUM_BNOi], \
-		(unsigned int)(pag)->pagf_levels[XFS_BTNUM_CNTi], mp))
-
 #define XFS_AGB_TO_FSB(mp,agno,agbno)	\
 	(((xfs_fsblock_t)(agno) << (mp)->m_sb.sb_agblklog) | (agbno))
 #define	XFS_FSB_TO_AGNO(mp,fsbno)	\
diff --git a/fs/xfs/libxfs/xfs_trans_resv.h b/fs/xfs/libxfs/xfs_trans_resv.h
index 2d5bdfce6d8f..797815012c0e 100644
--- a/fs/xfs/libxfs/xfs_trans_resv.h
+++ b/fs/xfs/libxfs/xfs_trans_resv.h
@@ -73,9 +73,9 @@ struct xfs_trans_resv {
  * 2 trees * (2 blocks/level * max depth - 1) * block size
  */
 #define	XFS_ALLOCFREE_LOG_RES(mp,nx) \
-	((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1)))
+	((nx) * (2 * XFS_FSB_TO_B((mp), 2 * (mp)->m_ag_maxlevels - 1)))
 #define	XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
-	((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
+	((nx) * (2 * (2 * (mp)->m_ag_maxlevels - 1)))
 
 /*
  * Per-directory log reservation for any directory change.
diff --git a/fs/xfs/libxfs/xfs_trans_space.h b/fs/xfs/libxfs/xfs_trans_space.h
index bf9c4579334d..41e0428d8175 100644
--- a/fs/xfs/libxfs/xfs_trans_space.h
+++ b/fs/xfs/libxfs/xfs_trans_space.h
@@ -67,7 +67,7 @@
 #define	XFS_DIOSTRAT_SPACE_RES(mp, v)	\
 	(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v))
 #define	XFS_GROWFS_SPACE_RES(mp)	\
-	(2 * XFS_AG_MAXLEVELS(mp))
+	(2 * (mp)->m_ag_maxlevels)
 #define	XFS_GROWFSRT_SPACE_RES(mp,b)	\
 	((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
 #define	XFS_LINK_SPACE_RES(mp,nl)	\