1 files changed, 52 insertions, 7 deletions

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index dcfe331dc4c4..3c0c7c6a5b44 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -19,6 +19,7 @@
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/string.h>
+#include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/blkdev.h>
@@ -27,6 +28,8 @@
 #include <linux/buffer_head.h>
 #include <linux/smp_lock.h>
 #include <linux/vfs.h>
+#include <linux/seq_file.h>
+#include <linux/mount.h>
 #include <asm/uaccess.h>
 #include "ext2.h"
 #include "xattr.h"
@@ -201,6 +204,26 @@ static void ext2_clear_inode(struct inode *inode)
 #endif
 }
 
+static int ext2_show_options(struct seq_file *seq, struct vfsmount *vfs)
+{
+        struct ext2_sb_info *sbi = EXT2_SB(vfs->mnt_sb);
+
+        if (sbi->s_mount_opt & EXT2_MOUNT_GRPID)
+                seq_puts(seq, ",grpid");
+        else
+                seq_puts(seq, ",nogrpid");
+
+#if defined(CONFIG_QUOTA)
+        if (sbi->s_mount_opt & EXT2_MOUNT_USRQUOTA)
+                seq_puts(seq, ",usrquota");
+
+        if (sbi->s_mount_opt & EXT2_MOUNT_GRPQUOTA)
+                seq_puts(seq, ",grpquota");
+#endif
+
+        return 0;
+}
+
 #ifdef CONFIG_QUOTA
 static ssize_t ext2_quota_read(struct super_block *sb, int type, char *data, size_t len, loff_t off);
 static ssize_t ext2_quota_write(struct super_block *sb, int type, const char *data, size_t len, loff_t off);
@@ -218,6 +241,7 @@ static struct super_operations ext2_sops = {
         .statfs         = ext2_statfs,
         .remount_fs     = ext2_remount,
         .clear_inode    = ext2_clear_inode,
+        .show_options   = ext2_show_options,
 #ifdef CONFIG_QUOTA
         .quota_read     = ext2_quota_read,
         .quota_write    = ext2_quota_write,
@@ -256,10 +280,11 @@ static unsigned long get_sb_block(void **data)
 
 enum {
         Opt_bsd_df, Opt_minix_df, Opt_grpid, Opt_nogrpid,
-        Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro,
-        Opt_nouid32, Opt_check, Opt_nocheck, Opt_debug, Opt_oldalloc, Opt_orlov, Opt_nobh,
-        Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl, Opt_xip,
-        Opt_ignore, Opt_err,
+        Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic,
+        Opt_err_ro, Opt_nouid32, Opt_check, Opt_nocheck, Opt_debug,
+        Opt_oldalloc, Opt_orlov, Opt_nobh, Opt_user_xattr, Opt_nouser_xattr,
+        Opt_acl, Opt_noacl, Opt_xip, Opt_ignore, Opt_err, Opt_quota,
+        Opt_usrquota, Opt_grpquota
 };
 
 static match_table_t tokens = {
@@ -288,10 +313,10 @@ static match_table_t tokens = {
         {Opt_acl, "acl"},
         {Opt_noacl, "noacl"},
         {Opt_xip, "xip"},
-        {Opt_ignore, "grpquota"},
+        {Opt_grpquota, "grpquota"},
         {Opt_ignore, "noquota"},
-        {Opt_ignore, "quota"},
-        {Opt_ignore, "usrquota"},
+        {Opt_quota, "quota"},
+        {Opt_usrquota, "usrquota"},
         {Opt_err, NULL}
 };
 
@@ -406,6 +431,26 @@ static int parse_options (char * options,
                         printk("EXT2 xip option not supported\n");
 #endif
                         break;
+
+#if defined(CONFIG_QUOTA)
+                case Opt_quota:
+                case Opt_usrquota:
+                        set_opt(sbi->s_mount_opt, USRQUOTA);
+                        break;
+
+                case Opt_grpquota:
+                        set_opt(sbi->s_mount_opt, GRPQUOTA);
+                        break;
+#else
+                case Opt_quota:
+                case Opt_usrquota:
+                case Opt_grpquota:
+                        printk(KERN_ERR
+                                "EXT2-fs: quota operations not supported.\n");
+
+                        break;
+#endif
+
                 case Opt_ignore:
                         break;
                 default: