diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 8eb718979383..4daaa662337b 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -264,68 +264,6 @@ typedef struct xfs_dsb {
 	/* must be padded to 64 bit alignment */
 } xfs_dsb_t;
 
-/*
- * Sequence number values for the fields.
- */
-typedef enum {
-	XFS_SBS_MAGICNUM, XFS_SBS_BLOCKSIZE, XFS_SBS_DBLOCKS, XFS_SBS_RBLOCKS,
-	XFS_SBS_REXTENTS, XFS_SBS_UUID, XFS_SBS_LOGSTART, XFS_SBS_ROOTINO,
-	XFS_SBS_RBMINO, XFS_SBS_RSUMINO, XFS_SBS_REXTSIZE, XFS_SBS_AGBLOCKS,
-	XFS_SBS_AGCOUNT, XFS_SBS_RBMBLOCKS, XFS_SBS_LOGBLOCKS,
-	XFS_SBS_VERSIONNUM, XFS_SBS_SECTSIZE, XFS_SBS_INODESIZE,
-	XFS_SBS_INOPBLOCK, XFS_SBS_FNAME, XFS_SBS_BLOCKLOG,
-	XFS_SBS_SECTLOG, XFS_SBS_INODELOG, XFS_SBS_INOPBLOG, XFS_SBS_AGBLKLOG,
-	XFS_SBS_REXTSLOG, XFS_SBS_INPROGRESS, XFS_SBS_IMAX_PCT, XFS_SBS_ICOUNT,
-	XFS_SBS_IFREE, XFS_SBS_FDBLOCKS, XFS_SBS_FREXTENTS, XFS_SBS_UQUOTINO,
-	XFS_SBS_GQUOTINO, XFS_SBS_QFLAGS, XFS_SBS_FLAGS, XFS_SBS_SHARED_VN,
-	XFS_SBS_INOALIGNMT, XFS_SBS_UNIT, XFS_SBS_WIDTH, XFS_SBS_DIRBLKLOG,
-	XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT,
-	XFS_SBS_FEATURES2, XFS_SBS_BAD_FEATURES2, XFS_SBS_FEATURES_COMPAT,
-	XFS_SBS_FEATURES_RO_COMPAT, XFS_SBS_FEATURES_INCOMPAT,
-	XFS_SBS_FEATURES_LOG_INCOMPAT, XFS_SBS_CRC, XFS_SBS_PAD,
-	XFS_SBS_PQUOTINO, XFS_SBS_LSN,
-	XFS_SBS_FIELDCOUNT
-} xfs_sb_field_t;
-
-/*
- * Mask values, defined based on the xfs_sb_field_t values.
- * Only define the ones we're using.
- */
-#define	XFS_SB_MVAL(x)		(1LL << XFS_SBS_ ## x)
-#define	XFS_SB_UUID		XFS_SB_MVAL(UUID)
-#define	XFS_SB_FNAME		XFS_SB_MVAL(FNAME)
-#define	XFS_SB_ROOTINO		XFS_SB_MVAL(ROOTINO)
-#define	XFS_SB_RBMINO		XFS_SB_MVAL(RBMINO)
-#define	XFS_SB_RSUMINO		XFS_SB_MVAL(RSUMINO)
-#define	XFS_SB_VERSIONNUM	XFS_SB_MVAL(VERSIONNUM)
-#define XFS_SB_UQUOTINO		XFS_SB_MVAL(UQUOTINO)
-#define XFS_SB_GQUOTINO		XFS_SB_MVAL(GQUOTINO)
-#define XFS_SB_QFLAGS		XFS_SB_MVAL(QFLAGS)
-#define XFS_SB_SHARED_VN	XFS_SB_MVAL(SHARED_VN)
-#define XFS_SB_UNIT		XFS_SB_MVAL(UNIT)
-#define XFS_SB_WIDTH		XFS_SB_MVAL(WIDTH)
-#define XFS_SB_ICOUNT		XFS_SB_MVAL(ICOUNT)
-#define XFS_SB_IFREE		XFS_SB_MVAL(IFREE)
-#define XFS_SB_FDBLOCKS		XFS_SB_MVAL(FDBLOCKS)
-#define XFS_SB_FEATURES2	(XFS_SB_MVAL(FEATURES2) | \
-				 XFS_SB_MVAL(BAD_FEATURES2))
-#define XFS_SB_FEATURES_COMPAT	XFS_SB_MVAL(FEATURES_COMPAT)
-#define XFS_SB_FEATURES_RO_COMPAT XFS_SB_MVAL(FEATURES_RO_COMPAT)
-#define XFS_SB_FEATURES_INCOMPAT XFS_SB_MVAL(FEATURES_INCOMPAT)
-#define XFS_SB_FEATURES_LOG_INCOMPAT XFS_SB_MVAL(FEATURES_LOG_INCOMPAT)
-#define XFS_SB_CRC		XFS_SB_MVAL(CRC)
-#define XFS_SB_PQUOTINO		XFS_SB_MVAL(PQUOTINO)
-#define	XFS_SB_NUM_BITS		((int)XFS_SBS_FIELDCOUNT)
-#define	XFS_SB_ALL_BITS		((1LL << XFS_SB_NUM_BITS) - 1)
-#define	XFS_SB_MOD_BITS		\
-	(XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \
-	 XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \
-	 XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \
-	 XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2 | \
-	 XFS_SB_FEATURES_COMPAT | XFS_SB_FEATURES_RO_COMPAT | \
-	 XFS_SB_FEATURES_INCOMPAT | XFS_SB_FEATURES_LOG_INCOMPAT | \
-	 XFS_SB_PQUOTINO)
-
 
 /*
  * Misc. Flags - warning - these will be cleared by xfs_repair unless
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 16e62edc9dae..cb7e8a29dfb6 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -693,10 +693,6 @@ xfs_reserve_blocks(
 	 * what to do. This means that the amount of free space can
 	 * change while we do this, so we need to retry if we end up
 	 * trying to reserve more space than is available.
-	 *
-	 * We also use the xfs_mod_incore_sb() interface so that we
-	 * don't have to care about whether per cpu counter are
-	 * enabled, disabled or even compiled in....
 	 */
 retry:
 	spin_lock(&mp->m_sb_lock);
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index d748aa73003b..2ce7ee3b4ec1 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1216,142 +1216,6 @@ xfs_mod_frextents(
 	return ret;
 }
 
-/*
- * xfs_mod_incore_sb_unlocked() is a utility routine commonly used to apply
- * a delta to a specified field in the in-core superblock.  Simply
- * switch on the field indicated and apply the delta to that field.
- * Fields are not allowed to dip below zero, so if the delta would
- * do this do not apply it and return EINVAL.
- *
- * The m_sb_lock must be held when this routine is called.
- */
-STATIC int
-xfs_mod_incore_sb_unlocked(
-	xfs_mount_t	*mp,
-	xfs_sb_field_t	field,
-	int64_t		delta,
-	int		rsvd)
-{
-	int		scounter;	/* short counter for 32 bit fields */
-	long long	lcounter;	/* long counter for 64 bit fields */
-
-	/*
-	 * With the in-core superblock spin lock held, switch
-	 * on the indicated field.  Apply the delta to the
-	 * proper field.  If the fields value would dip below
-	 * 0, then do not apply the delta and return EINVAL.
-	 */
-	switch (field) {
-	case XFS_SBS_ICOUNT:
-	case XFS_SBS_IFREE:
-	case XFS_SBS_FDBLOCKS:
-	case XFS_SBS_FREXTENTS:
-		ASSERT(0);
-		return -EINVAL;
-	case XFS_SBS_DBLOCKS:
-		lcounter = (long long)mp->m_sb.sb_dblocks;
-		lcounter += delta;
-		if (lcounter < 0) {
-			ASSERT(0);
-			return -EINVAL;
-		}
-		mp->m_sb.sb_dblocks = lcounter;
-		return 0;
-	case XFS_SBS_AGCOUNT:
-		scounter = mp->m_sb.sb_agcount;
-		scounter += delta;
-		if (scounter < 0) {
-			ASSERT(0);
-			return -EINVAL;
-		}
-		mp->m_sb.sb_agcount = scounter;
-		return 0;
-	case XFS_SBS_IMAX_PCT:
-		scounter = mp->m_sb.sb_imax_pct;
-		scounter += delta;
-		if (scounter < 0) {
-			ASSERT(0);
-			return -EINVAL;
-		}
-		mp->m_sb.sb_imax_pct = scounter;
-		return 0;
-	case XFS_SBS_REXTSIZE:
-		scounter = mp->m_sb.sb_rextsize;
-		scounter += delta;
-		if (scounter < 0) {
-			ASSERT(0);
-			return -EINVAL;
-		}
-		mp->m_sb.sb_rextsize = scounter;
-		return 0;
-	case XFS_SBS_RBMBLOCKS:
-		scounter = mp->m_sb.sb_rbmblocks;
-		scounter += delta;
-		if (scounter < 0) {
-			ASSERT(0);
-			return -EINVAL;
-		}
-		mp->m_sb.sb_rbmblocks = scounter;
-		return 0;
-	case XFS_SBS_RBLOCKS:
-		lcounter = (long long)mp->m_sb.sb_rblocks;
-		lcounter += delta;
-		if (lcounter < 0) {
-			ASSERT(0);
-			return -EINVAL;
-		}
-		mp->m_sb.sb_rblocks = lcounter;
-		return 0;
-	case XFS_SBS_REXTENTS:
-		lcounter = (long long)mp->m_sb.sb_rextents;
-		lcounter += delta;
-		if (lcounter < 0) {
-			ASSERT(0);
-			return -EINVAL;
-		}
-		mp->m_sb.sb_rextents = lcounter;
-		return 0;
-	case XFS_SBS_REXTSLOG:
-		scounter = mp->m_sb.sb_rextslog;
-		scounter += delta;
-		if (scounter < 0) {
-			ASSERT(0);
-			return -EINVAL;
-		}
-		mp->m_sb.sb_rextslog = scounter;
-		return 0;
-	default:
-		ASSERT(0);
-		return -EINVAL;
-	}
-}
-
-/*
- * xfs_mod_incore_sb() is used to change a field in the in-core
- * superblock structure by the specified delta.  This modification
- * is protected by the m_sb_lock.  Just use the xfs_mod_incore_sb_unlocked()
- * routine to do the work.
- */
-int
-xfs_mod_incore_sb(
-	struct xfs_mount	*mp,
-	xfs_sb_field_t		field,
-	int64_t			delta,
-	int			rsvd)
-{
-	int			status;
-
-#ifdef HAVE_PERCPU_SB
-	ASSERT(field < XFS_SBS_IFREE || field > XFS_SBS_FDBLOCKS);
-#endif
-
-	spin_lock(&mp->m_sb_lock);
-	status = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
-	spin_unlock(&mp->m_sb_lock);
-
-	return status;
-}
-
 /*
  * xfs_getsb() is called to obtain the buffer for the superblock.
  * The buffer is returned locked and read in from disk.
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 1c11512bab83..8c995a2ccb6f 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -313,9 +313,8 @@ extern __uint64_t xfs_default_resblks(xfs_mount_t *mp);
 extern int	xfs_mountfs(xfs_mount_t *mp);
 extern int	xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount,
 				     xfs_agnumber_t *maxagi);
-
 extern void	xfs_unmountfs(xfs_mount_t *);
-extern int	xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
+
 extern int	xfs_mod_icount(struct xfs_mount *mp, int64_t delta);
 extern int	xfs_mod_ifree(struct xfs_mount *mp, int64_t delta);
 extern int	xfs_mod_fdblocks(struct xfs_mount *mp, int64_t delta,