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authorChristoph Hellwig <hch@infradead.org>2008-10-30 01:57:16 -0400
committerLachlan McIlroy <lachlan@sgi.com>2008-10-30 01:57:16 -0400
commit344207ce8474b79be331eb93e6df4cb5bdd48ab2 (patch)
tree7858f63c359e2695a6c368a73b078ff183345922 /fs/xfs/xfs_btree.h
parentf5eb8e7ca58bc1e92436614444006120d21668ba (diff)
[XFS] implement semi-generic xfs_btree_new_root
From: Dave Chinner <dgc@sgi.com> Add a xfs_btree_new_root helper for the alloc and ialloc btrees. The bmap btree needs it's own version and is not converted. [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32200a 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.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 354a6656fad5..18015392feb0 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -187,6 +187,10 @@ struct xfs_btree_ops {
187 /* cursor operations */ 187 /* cursor operations */
188 struct xfs_btree_cur *(*dup_cursor)(struct xfs_btree_cur *); 188 struct xfs_btree_cur *(*dup_cursor)(struct xfs_btree_cur *);
189 189
190 /* update btree root pointer */
191 void (*set_root)(struct xfs_btree_cur *cur,
192 union xfs_btree_ptr *nptr, int level_change);
193
190 /* block allocation / freeing */ 194 /* block allocation / freeing */
191 int (*alloc_block)(struct xfs_btree_cur *cur, 195 int (*alloc_block)(struct xfs_btree_cur *cur,
192 union xfs_btree_ptr *start_bno, 196 union xfs_btree_ptr *start_bno,
@@ -543,6 +547,7 @@ int xfs_btree_lshift(struct xfs_btree_cur *, int, int *);
543int xfs_btree_rshift(struct xfs_btree_cur *, int, int *); 547int xfs_btree_rshift(struct xfs_btree_cur *, int, int *);
544int xfs_btree_split(struct xfs_btree_cur *, int, union xfs_btree_ptr *, 548int xfs_btree_split(struct xfs_btree_cur *, int, union xfs_btree_ptr *,
545 union xfs_btree_key *, struct xfs_btree_cur **, int *); 549 union xfs_btree_key *, struct xfs_btree_cur **, int *);
550int xfs_btree_new_root(struct xfs_btree_cur *, int *);
546 551
547/* 552/*
548 * Helpers. 553 * Helpers.