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xfs: support the XFS_BTNUM_FINOBT free inode btree type

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Define the AGI fields for the finobt root/level and add magic
numbers. Update the btree code to add support for the new
XFS_BTNUM_FINOBT inode btree.

The finobt root block is reserved immediately following the inobt
root block in the AG. Update XFS_PREALLOC_BLOCKS() to determine the
starting AG data block based on whether finobt support is enabled.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Brian Foster
2014-04-24 16:00:52 +10:00
committed by Dave Chinner
parent 8e2c84df20
commit aafc3c2465
10 changed files with 156 additions and 30 deletions
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6
fs/xfs/xfs_btree.c
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@@ -43,9 +43,10 @@ kmem_zone_t *xfs_btree_cur_zone;
* Btree magic numbers.
*/
static const __uint32_t xfs_magics[2][XFS_BTNUM_MAX] = {
{ XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC },
{ XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC,
XFS_FIBT_MAGIC },
{ XFS_ABTB_CRC_MAGIC, XFS_ABTC_CRC_MAGIC,
XFS_BMAP_CRC_MAGIC, XFS_IBT_CRC_MAGIC }
XFS_BMAP_CRC_MAGIC, XFS_IBT_CRC_MAGIC, XFS_FIBT_CRC_MAGIC }
};
#define xfs_btree_magic(cur) \
xfs_magics[!!((cur)->bc_flags & XFS_BTREE_CRC_BLOCKS)][cur->bc_btnum]
@@ -1115,6 +1116,7 @@ xfs_btree_set_refs(
xfs_buf_set_ref(bp, XFS_ALLOC_BTREE_REF);
break;
case XFS_BTNUM_INO:
case XFS_BTNUM_FINO:
xfs_buf_set_ref(bp, XFS_INO_BTREE_REF);
break;
case XFS_BTNUM_BMAP: