projects / cascardo / linux.git / blobdiff
? search:
summary | shortlog | log | commit | commitdiff | tree
raw | inline | side by side
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
[cascardo/linux.git] / fs / ext4 / super.c
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 3f7e701..d4ca92a 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -50,13 +50,6 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/ext4.h>
 
-static int default_mb_history_length = 1000;
-
-module_param_named(default_mb_history_length, default_mb_history_length,
-                  int, 0644);
-MODULE_PARM_DESC(default_mb_history_length,
-                "Default number of entries saved for mb_history");
-
 struct proc_dir_entry *ext4_proc_root;
 static struct kset *ext4_kset;
 
@@ -1079,7 +1072,7 @@ enum {
        Opt_journal_update, Opt_journal_dev,
        Opt_journal_checksum, Opt_journal_async_commit,
        Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
-       Opt_data_err_abort, Opt_data_err_ignore, Opt_mb_history_length,
+       Opt_data_err_abort, Opt_data_err_ignore,
        Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
        Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
        Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err, Opt_resize,
@@ -1126,7 +1119,6 @@ static const match_table_t tokens = {
        {Opt_data_writeback, "data=writeback"},
        {Opt_data_err_abort, "data_err=abort"},
        {Opt_data_err_ignore, "data_err=ignore"},
-       {Opt_mb_history_length, "mb_history_length=%u"},
        {Opt_offusrjquota, "usrjquota="},
        {Opt_usrjquota, "usrjquota=%s"},
        {Opt_offgrpjquota, "grpjquota="},
@@ -1308,9 +1300,11 @@ static int parse_options(char *options, struct super_block *sb,
                        *journal_devnum = option;
                        break;
                case Opt_journal_checksum:
-                       break;  /* Kept for backwards compatibility */
+                       set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM);
+                       break;
                case Opt_journal_async_commit:
                        set_opt(sbi->s_mount_opt, JOURNAL_ASYNC_COMMIT);
+                       set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM);
                        break;
                case Opt_noload:
                        set_opt(sbi->s_mount_opt, NOLOAD);
@@ -1367,13 +1361,6 @@ static int parse_options(char *options, struct super_block *sb,
                case Opt_data_err_ignore:
                        clear_opt(sbi->s_mount_opt, DATA_ERR_ABORT);
                        break;
-               case Opt_mb_history_length:
-                       if (match_int(&args[0], &option))
-                               return 0;
-                       if (option < 0)
-                               return 0;
-                       sbi->s_mb_history_max = option;
-                       break;
 #ifdef CONFIG_QUOTA
                case Opt_usrjquota:
                        qtype = USRQUOTA;
@@ -1673,13 +1660,6 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
                        EXT4_INODES_PER_GROUP(sb),
                        sbi->s_mount_opt);
 
-       if (EXT4_SB(sb)->s_journal) {
-               ext4_msg(sb, KERN_INFO, "%s journal on %s",
-                      EXT4_SB(sb)->s_journal->j_inode ? "internal" :
-                      "external", EXT4_SB(sb)->s_journal->j_devname);
-       } else {
-               ext4_msg(sb, KERN_INFO, "no journal");
-       }
        return res;
 }
 
@@ -2442,7 +2422,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
        sbi->s_commit_interval = JBD2_DEFAULT_MAX_COMMIT_AGE * HZ;
        sbi->s_min_batch_time = EXT4_DEF_MIN_BATCH_TIME;
        sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME;
-       sbi->s_mb_history_max = default_mb_history_length;
 
        set_opt(sbi->s_mount_opt, BARRIER);
 
@@ -2782,14 +2761,20 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
                goto failed_mount4;
        }
 
-       jbd2_journal_set_features(sbi->s_journal,
-                                 JBD2_FEATURE_COMPAT_CHECKSUM, 0, 0);
-       if (test_opt(sb, JOURNAL_ASYNC_COMMIT))
-               jbd2_journal_set_features(sbi->s_journal, 0, 0,
+       if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) {
+               jbd2_journal_set_features(sbi->s_journal,
+                               JBD2_FEATURE_COMPAT_CHECKSUM, 0,
                                JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT);
-       else
+       } else if (test_opt(sb, JOURNAL_CHECKSUM)) {
+               jbd2_journal_set_features(sbi->s_journal,
+                               JBD2_FEATURE_COMPAT_CHECKSUM, 0, 0);
                jbd2_journal_clear_features(sbi->s_journal, 0, 0,
                                JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT);
+       } else {
+               jbd2_journal_clear_features(sbi->s_journal,
+                               JBD2_FEATURE_COMPAT_CHECKSUM, 0,
+                               JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT);
+       }
 
        /* We have now updated the journal if required, so we can
         * validate the data journaling mode. */
@@ -2885,12 +2870,12 @@ no_journal:
                         "available");
        }
 
-       if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
+       if (test_opt(sb, DELALLOC) &&
+           (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)) {
                ext4_msg(sb, KERN_WARNING, "Ignoring delalloc option - "
                         "requested data journaling mode");
                clear_opt(sbi->s_mount_opt, DELALLOC);
-       } else if (test_opt(sb, DELALLOC))
-               ext4_msg(sb, KERN_INFO, "delayed allocation enabled");
+       }
 
        err = ext4_setup_system_zone(sb);
        if (err) {
@@ -3202,9 +3187,7 @@ static int ext4_load_journal(struct super_block *sb,
                        return -EINVAL;
        }
 
-       if (journal->j_flags & JBD2_BARRIER)
-               ext4_msg(sb, KERN_INFO, "barriers enabled");
-       else
+       if (!(journal->j_flags & JBD2_BARRIER))
                ext4_msg(sb, KERN_INFO, "barriers disabled");
 
        if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) {
@@ -3991,27 +3974,6 @@ static struct file_system_type ext4_fs_type = {
        .fs_flags       = FS_REQUIRES_DEV,
 };
 
-#ifdef CONFIG_EXT4DEV_COMPAT
-static int ext4dev_get_sb(struct file_system_type *fs_type, int flags,
-                         const char *dev_name, void *data,struct vfsmount *mnt)
-{
-       printk(KERN_WARNING "EXT4-fs (%s): Update your userspace programs "
-              "to mount using ext4\n", dev_name);
-       printk(KERN_WARNING "EXT4-fs (%s): ext4dev backwards compatibility "
-              "will go away by 2.6.31\n", dev_name);
-       return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt);
-}
-
-static struct file_system_type ext4dev_fs_type = {
-       .owner          = THIS_MODULE,
-       .name           = "ext4dev",
-       .get_sb         = ext4dev_get_sb,
-       .kill_sb        = kill_block_super,
-       .fs_flags       = FS_REQUIRES_DEV,
-};
-MODULE_ALIAS("ext4dev");
-#endif
-
 static int __init init_ext4_fs(void)
 {
        int err;
@@ -4036,13 +3998,6 @@ static int __init init_ext4_fs(void)
        err = register_filesystem(&ext4_fs_type);
        if (err)
                goto out;
-#ifdef CONFIG_EXT4DEV_COMPAT
-       err = register_filesystem(&ext4dev_fs_type);
-       if (err) {
-               unregister_filesystem(&ext4_fs_type);
-               goto out;
-       }
-#endif
        return 0;
 out:
        destroy_inodecache();
@@ -4061,9 +4016,6 @@ out4:
 static void __exit exit_ext4_fs(void)
 {
        unregister_filesystem(&ext4_fs_type);
-#ifdef CONFIG_EXT4DEV_COMPAT
-       unregister_filesystem(&ext4dev_fs_type);
-#endif
        destroy_inodecache();
        exit_ext4_xattr();
        exit_ext4_mballoc();
Unnamed repository; edit this file 'description' to name the repository.