ext4: Add auto_da_alloc mount option

[linux-2.6-omap-h63xx.git] / fs / ext4 / super.c

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b9aefceb41e786014eb42ef8655b0cdf0a7b3ce5..45d07cf9df347536c1e109943b7cc816e1465c49 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -816,8 +816,6 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
        if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT4_DEFM_ACL))
                seq_puts(seq, ",noacl");
 #endif
-       if (!test_opt(sb, RESERVATION))
-               seq_puts(seq, ",noreservation");
        if (sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) {
                seq_printf(seq, ",commit=%u",
                           (unsigned) (sbi->s_commit_interval / HZ));
@@ -868,6 +866,9 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
        if (test_opt(sb, DATA_ERR_ABORT))
                seq_puts(seq, ",data_err=abort");
 
+       if (test_opt(sb, NO_AUTO_DA_ALLOC))
+               seq_puts(seq, ",auto_da_alloc=0");
+
        ext4_show_quota_options(seq, sb);
        return 0;
 }
@@ -1017,7 +1018,7 @@ enum {
        Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro,
        Opt_nouid32, Opt_debug, Opt_oldalloc, Opt_orlov,
        Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl,
-       Opt_reservation, Opt_noreservation, Opt_noload, Opt_nobh, Opt_bh,
+       Opt_auto_da_alloc, Opt_noload, Opt_nobh, Opt_bh,
        Opt_commit, Opt_min_batch_time, Opt_max_batch_time,
        Opt_journal_update, Opt_journal_dev,
        Opt_journal_checksum, Opt_journal_async_commit,
@@ -1052,8 +1053,6 @@ static const match_table_t tokens = {
        {Opt_nouser_xattr, "nouser_xattr"},
        {Opt_acl, "acl"},
        {Opt_noacl, "noacl"},
-       {Opt_reservation, "reservation"},
-       {Opt_noreservation, "noreservation"},
        {Opt_noload, "noload"},
        {Opt_nobh, "nobh"},
        {Opt_bh, "bh"},
@@ -1088,6 +1087,7 @@ static const match_table_t tokens = {
        {Opt_nodelalloc, "nodelalloc"},
        {Opt_inode_readahead_blks, "inode_readahead_blks=%u"},
        {Opt_journal_ioprio, "journal_ioprio=%u"},
+       {Opt_auto_da_alloc, "auto_da_alloc=%u"},
        {Opt_err, NULL},
 };
 
@@ -1220,12 +1220,6 @@ static int parse_options(char *options, struct super_block *sb,
                               "not supported\n");
                        break;
 #endif
-               case Opt_reservation:
-                       set_opt(sbi->s_mount_opt, RESERVATION);
-                       break;
-               case Opt_noreservation:
-                       clear_opt(sbi->s_mount_opt, RESERVATION);
-                       break;
                case Opt_journal_update:
                        /* @@@ FIXME */
                        /* Eventually we will want to be able to create
@@ -1491,6 +1485,14 @@ set_qf_format:
                        *journal_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE,
                                                            option);
                        break;
+               case Opt_auto_da_alloc:
+                       if (match_int(&args[0], &option))
+                               return 0;
+                       if (option)
+                               clear_opt(sbi->s_mount_opt, NO_AUTO_DA_ALLOC);
+                       else
+                               set_opt(sbi->s_mount_opt,NO_AUTO_DA_ALLOC);
+                       break;
                default:
                        printk(KERN_ERR
                               "EXT4-fs: Unrecognized mount option \"%s\" "
@@ -2306,7 +2308,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
        sbi->s_min_batch_time = EXT4_DEF_MIN_BATCH_TIME;
        sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME;
 
-       set_opt(sbi->s_mount_opt, RESERVATION);
        set_opt(sbi->s_mount_opt, BARRIER);
 
        /*