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| author | Christoph Hellwig <hch@infradead.org> | 2008-10-30 16:54:22 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@sgi.com> | 2008-10-30 16:54:22 +1100 |
| commit | 8186e517fab1854554c48955cdbcbb6710e7baef (patch) | |
| tree | c948ac3cc49516c256ed9ab9355eb49c9f7c2a43 /fs/xfs/xfs_btree.h | |
| parent | de227dd9604934d2a6d33cd332d1be431719c93e (diff) | |
| download | blackbird-op-linux-8186e517fab1854554c48955cdbcbb6710e7baef.tar.gz blackbird-op-linux-8186e517fab1854554c48955cdbcbb6710e7baef.zip | |
[XFS] make btree root in inode support generic
The bmap btree is rooted in the inode and not in a disk block. Make the
support for this feature more generic by adding a btree flag to for this
feature instead of relying on the XFS_BTNUM_BMAP btnum check.
Also clean up xfs_btree_get_block where this new flag is used.
Based upon a patch from Dave Chinner.
SGI-PV: 985583
SGI-Modid: xfs-linux-melb:xfs-kern:32180a
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>
Diffstat (limited to 'fs/xfs/xfs_btree.h')
| -rw-r--r-- | fs/xfs/xfs_btree.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h index 428e81f0e27e..fefbc69e500e 100644 --- a/fs/xfs/xfs_btree.h +++ b/fs/xfs/xfs_btree.h @@ -170,6 +170,7 @@ typedef struct xfs_btree_cur struct xfs_trans *bc_tp; /* transaction we're in, if any */ struct xfs_mount *bc_mp; /* file system mount struct */ const struct xfs_btree_ops *bc_ops; + uint bc_flags; /* btree features - below */ union { xfs_alloc_rec_incore_t a; xfs_bmbt_irec_t b; @@ -201,6 +202,10 @@ typedef struct xfs_btree_cur } bc_private; /* per-btree type data */ } xfs_btree_cur_t; +/* cursor flags */ +#define XFS_BTREE_ROOT_IN_INODE (1<<1) /* root may be variable size */ + + #define XFS_BTREE_NOERROR 0 #define XFS_BTREE_ERROR 1 |
