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authorChristoph Hellwig <hch@infradead.org>2008-10-30 16:58:11 +1100
committerLachlan McIlroy <lachlan@sgi.com>2008-10-30 16:58:11 +1100
commit8cc938fe4237e50bea4aa557ed53b06de2319d49 (patch)
tree1b9dd352d423a573d96d5b1b311286a39232ef5b /fs/xfs/xfs_ialloc.c
parent91cca5df9bc85efdabfa645f51d54259ed09f4bf (diff)
downloadlinux-8cc938fe4237e50bea4aa557ed53b06de2319d49.tar.bz2
[XFS] implement generic xfs_btree_get_rec
Not really much reason to make it generic given that it's so small, but this is the last non-method in xfs_alloc_btree.c and xfs_ialloc_btree.c, so it makes the whole btree implementation more structured. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32206a 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_ialloc.c')
-rw-r--r--fs/xfs/xfs_ialloc.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index f13f59b13cc8..c8a56c529642 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -192,6 +192,29 @@ xfs_inobt_update(
}
/*
+ * Get the data from the pointed-to record.
+ */
+int /* error */
+xfs_inobt_get_rec(
+ struct xfs_btree_cur *cur, /* btree cursor */
+ xfs_agino_t *ino, /* output: starting inode of chunk */
+ __int32_t *fcnt, /* output: number of free inodes */
+ xfs_inofree_t *free, /* output: free inode mask */
+ int *stat) /* output: success/failure */
+{
+ union xfs_btree_rec *rec;
+ int error;
+
+ error = xfs_btree_get_rec(cur, &rec, stat);
+ if (!error && *stat == 1) {
+ *ino = be32_to_cpu(rec->inobt.ir_startino);
+ *fcnt = be32_to_cpu(rec->inobt.ir_freecount);
+ *free = be64_to_cpu(rec->inobt.ir_free);
+ }
+ return error;
+}
+
+/*
* Allocate new inodes in the allocation group specified by agbp.
* Return 0 for success, else error code.
*/