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| author | Christoph Hellwig <hch@infradead.org> | 2008-10-30 16:54:33 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@sgi.com> | 2008-10-30 16:54:33 +1100 |
| commit | e99ab90d6a9e8ac92f05d2c31d44aa7feee15394 (patch) | |
| tree | 49f96f06100aae711eafe75799c4812a001a51ba | |
| parent | 8186e517fab1854554c48955cdbcbb6710e7baef (diff) | |
| download | linux-e99ab90d6a9e8ac92f05d2c31d44aa7feee15394.tar.gz linux-e99ab90d6a9e8ac92f05d2c31d44aa7feee15394.tar.bz2 linux-e99ab90d6a9e8ac92f05d2c31d44aa7feee15394.zip | |
[XFS] add a long pointers flag to xfs_btree_cur
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>
| -rw-r--r-- | fs/xfs/xfs_bmap_btree.c | 2 | ||||
| -rw-r--r-- | fs/xfs/xfs_btree.c | 6 | ||||
| -rw-r--r-- | fs/xfs/xfs_btree.h | 6 |
3 files changed, 5 insertions, 9 deletions
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c index d9bbed676e0c..1ec494e111b5 100644 --- a/fs/xfs/xfs_bmap_btree.c +++ b/fs/xfs/xfs_bmap_btree.c @@ -2656,7 +2656,7 @@ xfs_bmbt_init_cursor( cur->bc_blocklog = mp->m_sb.sb_blocklog; cur->bc_ops = &xfs_bmbt_ops; - cur->bc_flags = XFS_BTREE_ROOT_IN_INODE; + cur->bc_flags = XFS_BTREE_LONG_PTRS | XFS_BTREE_ROOT_IN_INODE; cur->bc_private.b.forksize = XFS_IFORK_SIZE(ip, whichfork); cur->bc_private.b.ip = ip; diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c index 57e858fbf683..59796b42e9c4 100644 --- a/fs/xfs/xfs_btree.c +++ b/fs/xfs/xfs_btree.c @@ -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) diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h index fefbc69e500e..dd93fd39c56a 100644 --- a/fs/xfs/xfs_btree.h +++ b/fs/xfs/xfs_btree.h @@ -116,11 +116,6 @@ union xfs_btree_rec { #define XFS_BB_ALL_BITS ((1 << XFS_BB_NUM_BITS) - 1) /* - * Boolean to select which form of xfs_btree_block_t.bb_u to use. - */ -#define XFS_BTREE_LONG_PTRS(btnum) ((btnum) == XFS_BTNUM_BMAP) - -/* * Magic numbers for btree blocks. */ extern const __uint32_t xfs_magics[]; @@ -203,6 +198,7 @@ typedef struct xfs_btree_cur } xfs_btree_cur_t; /* cursor flags */ +#define XFS_BTREE_LONG_PTRS (1<<0) /* pointers are 64bits long */ #define XFS_BTREE_ROOT_IN_INODE (1<<1) /* root may be variable size */ |