[PATCH 4/6] xfsprogs: introduce xfs_icluster_size_fsb()

Jeff Liu
2014-05-05T12:32:28Z

From: Jie Liu <jeff.liu@oracle.com>

Introduce a common routine xfs_icluster_size_fsb() to calculate
and return the number of file system blocks per inode cluster.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
---
include/xfs_ialloc.h | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/include/xfs_ialloc.h b/include/xfs_ialloc.h
index 0498f20..9dee62f 100644
--- a/include/xfs_ialloc.h
+++ b/include/xfs_ialloc.h
@@ -30,6 +30,16 @@ struct xfs_btree_cur;
*/
#define XFS_INODE_BIG_CLUSTER_SIZE 8192

+/* Calculate and return the number of filesystem blocks per inode cluster */
+static inline int
+xfs_icluster_size_fsb(
+ struct xfs_mount *mp)
+{
+ if (mp->m_sb.sb_blocksize >= mp->m_inode_cluster_size)
+ return 1;
+ return mp->m_inode_cluster_size >> mp->m_sb.sb_blocklog;
+}
+
/*
* Make an inode pointer out of the buffer/offset.
*/
--
1.8.3.2

_______________________________________________
xfs mailing list
xfs@oss.sgi.com