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[XFS] add a long pointers flag to xfs_btree_cur

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Add a flag to the xfs btree cursor when using long (64bit) block pointers
instead of checking btnum == XFS_BTNUM_BMAP.

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32181a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Bill O'Donnell <billodo@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>
This commit is contained in:
Christoph Hellwig 2008-10-30 16:54:33 +11:00 • committed by Lachlan McIlroy
parent 8186e517fa
commit e99ab90d6a
3 changed files with 5 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

6
fs/xfs/xfs_btree.c
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@ -90,7 +90,7 @@ xfs_btree_check_block(
int level, /* level of the btree block */
xfs_buf_t *bp) /* buffer containing block, if any */
{
if (XFS_BTREE_LONG_PTRS(cur->bc_btnum))
if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
xfs_btree_check_lblock(cur, (xfs_btree_lblock_t *)block, level,
bp);
else
@ -516,7 +516,7 @@ xfs_btree_islastblock(
block = xfs_btree_get_block(cur, level, &bp);
xfs_btree_check_block(cur, block, level, bp);
if (XFS_BTREE_LONG_PTRS(cur->bc_btnum))
if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
return be64_to_cpu(block->bb_u.l.bb_rightsib) == NULLDFSBNO;
else
return be32_to_cpu(block->bb_u.s.bb_rightsib) == NULLAGBLOCK;
@ -808,7 +808,7 @@ xfs_btree_setbuf(
if (!bp)
return;
b = XFS_BUF_TO_BLOCK(bp);
if (XFS_BTREE_LONG_PTRS(cur->bc_btnum)) {
if (cur->bc_flags & XFS_BTREE_LONG_PTRS) {
if (be64_to_cpu(b->bb_u.l.bb_leftsib) == NULLDFSBNO)
cur->bc_ra[lev] |= XFS_BTCUR_LEFTRA;
if (be64_to_cpu(b->bb_u.l.bb_rightsib) == NULLDFSBNO)