1 files changed, 17 insertions, 0 deletions

diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 8044ed97d362..1104f14c3183 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -87,6 +87,7 @@ struct mount_options
         unsigned long   mount_opt;
         unsigned int    atime_quantum;
         signed short    slot;
+        unsigned int    localalloc_opt;
 };
 
 static int ocfs2_parse_options(struct super_block *sb, char *options,
@@ -151,6 +152,7 @@ enum {
         Opt_atime_quantum,
         Opt_slot,
         Opt_commit,
+        Opt_localalloc,
         Opt_err,
 };
 
@@ -167,6 +169,7 @@ static match_table_t tokens = {
         {Opt_atime_quantum, "atime_quantum=%u"},
         {Opt_slot, "preferred_slot=%u"},
         {Opt_commit, "commit=%u"},
+        {Opt_localalloc, "localalloc=%d"},
         {Opt_err, NULL}
 };
 
@@ -602,6 +605,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
         osb->s_atime_quantum = parsed_options.atime_quantum;
         osb->preferred_slot = parsed_options.slot;
         osb->osb_commit_interval = parsed_options.commit_interval;
+        osb->local_alloc_size = parsed_options.localalloc_opt;
 
         sb->s_magic = OCFS2_SUPER_MAGIC;
 
@@ -756,6 +760,7 @@ static int ocfs2_parse_options(struct super_block *sb,
         mopt->mount_opt = 0;
         mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
         mopt->slot = OCFS2_INVALID_SLOT;
+        mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE;
 
         if (!options) {
                 status = 1;
@@ -834,6 +839,15 @@ static int ocfs2_parse_options(struct super_block *sb,
                                 option = JBD_DEFAULT_MAX_COMMIT_AGE;
                         mopt->commit_interval = HZ * option;
                         break;
+                case Opt_localalloc:
+                        option = 0;
+                        if (match_int(&args[0], &option)) {
+                                status = 0;
+                                goto bail;
+                        }
+                        if (option >= 0 && (option <= ocfs2_local_alloc_size(sb) * 8))
+                                mopt->localalloc_opt = option;
+                        break;
                 default:
                         mlog(ML_ERROR,
                              "Unrecognized mount option \"%s\" "
@@ -886,6 +900,9 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
                 seq_printf(s, ",commit=%u",
                            (unsigned) (osb->osb_commit_interval / HZ));
 
+        if (osb->local_alloc_size != OCFS2_DEFAULT_LOCAL_ALLOC_SIZE)
+                seq_printf(s, ",localalloc=%d", osb->local_alloc_size);
+
         return 0;
 }