[XFS] add get_maxrecs btree operation
Factor xfs_btree_maxrecs into a per-btree operation.
The get_maxrecs method is based on a patch from Dave Chinner.
SGI-PV: 985583
SGI-Modid: xfs-linux-melb:xfs-kern:32188a
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>
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index 9c91dfc..1f268b6 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -2219,6 +2219,14 @@
cur->bc_btnum);
}
+STATIC int
+xfs_allocbt_get_maxrecs(
+ struct xfs_btree_cur *cur,
+ int level)
+{
+ return cur->bc_mp->m_alloc_mxr[level != 0];
+}
+
#ifdef XFS_BTREE_TRACE
ktrace_t *xfs_allocbt_trace_buf;
@@ -2287,6 +2295,7 @@
static const struct xfs_btree_ops xfs_allocbt_ops = {
.dup_cursor = xfs_allocbt_dup_cursor,
+ .get_maxrecs = xfs_allocbt_get_maxrecs,
#ifdef XFS_BTREE_TRACE
.trace_enter = xfs_allocbt_trace_enter,