From: Jie Liu <jeff.liu@xxxxxxxxxx>
Introduce a common routine xfs_ialloc_blks_per_cluster() to calculate
and return the number of blocks per inode cluster.
Signed-off-by: Jie Liu <jeff.liu@xxxxxxxxxx>
---
fs/xfs/xfs_ialloc.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/fs/xfs/xfs_ialloc.h b/fs/xfs/xfs_ialloc.h
index a8f76a5..f4bfd32 100644
--- a/fs/xfs/xfs_ialloc.h
+++ b/fs/xfs/xfs_ialloc.h
@@ -37,6 +37,16 @@ struct xfs_btree_cur;
#define XFS_INODE_BIG_CLUSTER_SIZE 8192
#define XFS_INODE_CLUSTER_SIZE(mp) (mp)->m_inode_cluster_size
+/* Calculate and return the number of blocks per inode cluster */
+static inline int
+xfs_ialloc_blks_per_cluster(
+ struct xfs_mount *mp)
+{
+ if (mp->m_sb.sb_blocksize >= XFS_INODE_CLUSTER_SIZE(mp))
+ return 1;
+ return XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_blocklog;
+}
+
/*
* Make an inode pointer out of the buffer/offset.
*/
--
1.8.3.2
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