diff options
| author | Christoph Hellwig <hch@infradead.org> | 2008-10-30 16:57:03 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@sgi.com> | 2008-10-30 16:57:03 +1100 |
| commit | f5eb8e7ca58bc1e92436614444006120d21668ba (patch) | |
| tree | 94825b885653224f74c6087956cb4e1930380467 /fs/xfs/xfs_btree.h | |
| parent | 687b890a184fef263ebb773926e1f4aa69240d01 (diff) | |
| download | linux-f5eb8e7ca58bc1e92436614444006120d21668ba.tar.bz2 | |
[XFS] implement generic xfs_btree_split
Make the btree split code generic. Based on a patch from David Chinner
with lots of changes to follow the original btree implementations more
closely. While this loses some of the generic helper routines for
inserting/moving/removing records it also solves some of the one off bugs
in the original code and makes it easier to verify.
SGI-PV: 985583
SGI-Modid: xfs-linux-melb:xfs-kern:32198a
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 | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h index 7cde287b5c9c..354a6656fad5 100644 --- a/fs/xfs/xfs_btree.h +++ b/fs/xfs/xfs_btree.h @@ -187,6 +187,12 @@ struct xfs_btree_ops { /* cursor operations */ struct xfs_btree_cur *(*dup_cursor)(struct xfs_btree_cur *); + /* block allocation / freeing */ + int (*alloc_block)(struct xfs_btree_cur *cur, + union xfs_btree_ptr *start_bno, + union xfs_btree_ptr *new_bno, + int length, int *stat); + /* update last record information */ void (*update_lastrec)(struct xfs_btree_cur *cur, struct xfs_btree_block *block, @@ -535,6 +541,8 @@ int xfs_btree_updkey(struct xfs_btree_cur *, union xfs_btree_key *, int); int xfs_btree_update(struct xfs_btree_cur *, union xfs_btree_rec *); int xfs_btree_lshift(struct xfs_btree_cur *, int, int *); int xfs_btree_rshift(struct xfs_btree_cur *, int, int *); +int xfs_btree_split(struct xfs_btree_cur *, int, union xfs_btree_ptr *, + union xfs_btree_key *, struct xfs_btree_cur **, int *); /* * Helpers. |