Merge branch 'clockevents/fixes' of git://git.linaro.org/people/daniel.lezcano/linux...

[linux-drm-fsl-dcu.git] / fs / xfs / xfs_mount.c

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index da88f167af78dbf04df4eb0c1cdcfcad7a5bd699..02df7b408a2623d6a32e7a2bc8285be9348ca646 100644 (file)
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -41,6 +41,7 @@
 #include "xfs_fsops.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
+#include "xfs_dinode.h"
 
 
 #ifdef HAVE_PERCPU_SB
@@ -718,8 +719,22 @@ xfs_mountfs(
         * Set the inode cluster size.
         * This may still be overridden by the file system
         * block size if it is larger than the chosen cluster size.
+        *
+        * For v5 filesystems, scale the cluster size with the inode size to
+        * keep a constant ratio of inode per cluster buffer, but only if mkfs
+        * has set the inode alignment value appropriately for larger cluster
+        * sizes.
         */
        mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
+       if (xfs_sb_version_hascrc(&mp->m_sb)) {
+               int     new_size = mp->m_inode_cluster_size;
+
+               new_size *= mp->m_sb.sb_inodesize / XFS_DINODE_MIN_SIZE;
+               if (mp->m_sb.sb_inoalignmt >= XFS_B_TO_FSBT(mp, new_size))
+                       mp->m_inode_cluster_size = new_size;
+               xfs_info(mp, "Using inode cluster size of %d bytes",
+                        mp->m_inode_cluster_size);
+       }
 
        /*
         * Set inode alignment fields