xfs: Make inode32 a remountable option

As inode64 is the default option now, and was also made remountable
previously, inode32 can also be remounted on-the-fly when it is needed.

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 168d4984ce89..d93f2c7364cc 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -122,13 +122,18 @@ mempool_t *xfs_ioend_pool;
  * in the future, too.
  */
 enum {
-        Opt_barrier, Opt_nobarrier, Opt_inode64, Opt_err
+        Opt_barrier,
+        Opt_nobarrier,
+        Opt_inode64,
+        Opt_inode32,
+        Opt_err
 };
 
 static const match_table_t tokens = {
         {Opt_barrier, "barrier"},
         {Opt_nobarrier, "nobarrier"},
         {Opt_inode64, "inode64"},
+        {Opt_inode32, "inode32"},
         {Opt_err, NULL}
 };
 
@@ -1141,6 +1146,9 @@ xfs_fs_remount(
                 case Opt_inode64:
                         mp->m_maxagi = xfs_set_inode64(mp);
                         break;
+                case Opt_inode32:
+                        mp->m_maxagi = xfs_set_inode32(mp);
+                        break;
                 default:
                         /*
                          * Logically we would return an error here to prevent