ocfs2: Increase max links count

Since we've now got a directory format capable of handling a large number of
entries, we can increase the maximum link count supported. This only gets
increased if the directory indexing feature is turned on.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Acked-by: Joel Becker <joel.becker@oracle.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index d549b1799a61..43da76eff9ae 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -419,6 +419,8 @@ static struct ocfs2_system_inode_info ocfs2_system_inodes[NUM_SYSTEM_INODES] = {
 #define OCFS2_DIR_MIN_REC_LEN   OCFS2_DIR_REC_LEN(1)
 
 #define OCFS2_LINK_MAX          32000
+#define OCFS2_DX_LINK_MAX       ((1U << 31) - 1U)
+#define OCFS2_LINKS_HI_SHIFT    16
 
 #define S_SHIFT                 12
 static unsigned char ocfs2_type_by_mode[S_IFMT >> S_SHIFT] = {
@@ -686,7 +688,7 @@ struct ocfs2_dinode {
                                            belongs to */
         __le16 i_suballoc_bit;          /* Bit offset in suballocator
                                            block group */
-/*10*/  __le16 i_reserved0;
+/*10*/  __le16 i_links_count_hi;        /* High 16 bits of links count */
         __le16 i_xattr_inline_size;
         __le32 i_clusters;              /* Cluster count */
         __le32 i_uid;                   /* Owner UID */