xfs: refactor inode geometry setup routines

Migrate all of the inode geometry setup code from xfs_mount.c into a
single libxfs function that we can share with xfsprogs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

1 files changed, 1 insertions, 82 deletions

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 73e5cfc4d0ec..81d6535b24b4 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -430,32 +430,6 @@ xfs_update_alignment(xfs_mount_t *mp)
 }
 
 /*
- * Set the maximum inode count for this filesystem
- */
-STATIC void
-xfs_set_maxicount(
-	struct xfs_mount	*mp)
-{
-	struct xfs_sb		*sbp = &(mp->m_sb);
-	struct xfs_ino_geometry	*igeo = M_IGEO(mp);
-	uint64_t		icount;
-
-	if (sbp->sb_imax_pct) {
-		/*
-		 * Make sure the maximum inode count is a multiple
-		 * of the units we allocate inodes in.
-		 */
-		icount = sbp->sb_dblocks * sbp->sb_imax_pct;
-		do_div(icount, 100);
-		do_div(icount, igeo->ialloc_blks);
-		igeo->maxicount = XFS_FSB_TO_INO(mp,
-				icount * igeo->ialloc_blks);
-	} else {
-		igeo->maxicount = 0;
-	}
-}
-
-/*
  * Set the default minimum read and write sizes unless
  * already specified in a mount option.
  * We use smaller I/O sizes when the file system
@@ -511,29 +485,6 @@ xfs_set_low_space_thresholds(
 	}
 }
 
-
-/*
- * Set whether we're using inode alignment.
- */
-STATIC void
-xfs_set_inoalignment(xfs_mount_t *mp)
-{
-	if (xfs_sb_version_hasalign(&mp->m_sb) &&
-		mp->m_sb.sb_inoalignmt >= xfs_icluster_size_fsb(mp))
-		M_IGEO(mp)->inoalign_mask = mp->m_sb.sb_inoalignmt - 1;
-	else
-		M_IGEO(mp)->inoalign_mask = 0;
-	/*
-	 * If we are using stripe alignment, check whether
-	 * the stripe unit is a multiple of the inode alignment
-	 */
-	if (mp->m_dalign && M_IGEO(mp)->inoalign_mask &&
-	    !(mp->m_dalign & M_IGEO(mp)->inoalign_mask))
-		M_IGEO(mp)->ialloc_align = mp->m_dalign;
-	else
-		M_IGEO(mp)->ialloc_align = 0;
-}
-
 /*
  * Check that the data (and log if separate) is an ok size.
  */
@@ -752,12 +703,10 @@ xfs_mountfs(
 	xfs_alloc_compute_maxlevels(mp);
 	xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK);
 	xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK);
-	xfs_ialloc_compute_maxlevels(mp);
+	xfs_ialloc_setup_geometry(mp);
 	xfs_rmapbt_compute_maxlevels(mp);
 	xfs_refcountbt_compute_maxlevels(mp);
 
-	xfs_set_maxicount(mp);
-
 	/* enable fail_at_unmount as default */
 	mp->m_fail_unmount = true;
 
@@ -791,31 +740,6 @@ xfs_mountfs(
 	xfs_set_low_space_thresholds(mp);
 
 	/*
-	 * Set the inode cluster size.
-	 * This may still be overridden by the file system
-	 * block size if it is larger than the chosen cluster size.
-	 *
-	 * For v5 filesystems, scale the cluster size with the inode size to
-	 * keep a constant ratio of inode per cluster buffer, but only if mkfs
-	 * has set the inode alignment value appropriately for larger cluster
-	 * sizes.
-	 */
-	igeo->inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
-		int	new_size = igeo->inode_cluster_size;
-
-		new_size *= mp->m_sb.sb_inodesize / XFS_DINODE_MIN_SIZE;
-		if (mp->m_sb.sb_inoalignmt >= XFS_B_TO_FSBT(mp, new_size))
-			igeo->inode_cluster_size = new_size;
-	}
-	igeo->blocks_per_cluster = xfs_icluster_size_fsb(mp);
-	igeo->inodes_per_cluster = XFS_FSB_TO_INO(mp,
-			igeo->blocks_per_cluster);
-	igeo->cluster_align = xfs_ialloc_cluster_alignment(mp);
-	igeo->cluster_align_inodes = XFS_FSB_TO_INO(mp,
-			igeo->cluster_align);
-
-	/*
 	 * If enabled, sparse inode chunk alignment is expected to match the
 	 * cluster size. Full inode chunk alignment must match the chunk size,
 	 * but that is checked on sb read verification...
@@ -832,11 +756,6 @@ xfs_mountfs(
 	}
 
 	/*
-	 * Set inode alignment fields
-	 */
-	xfs_set_inoalignment(mp);
-
-	/*
 	 * Check that the data (and log if separate) is an ok size.
 	 */
 	error = xfs_check_sizes(mp);