]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - fs/ext4/super.c
Merge branch 'linus' into core/softirq
[linux-2.6-omap-h63xx.git] / fs / ext4 / super.c
index 52dd0679a4e2f8d77e418cb1f6bd5a842bc10ca1..cb96f127c36684eab7ddff36e97a64b3d1be0d2c 100644 (file)
@@ -671,6 +671,7 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
        unsigned long def_mount_opts;
        struct super_block *sb = vfs->mnt_sb;
        struct ext4_sb_info *sbi = EXT4_SB(sb);
+       journal_t *journal = sbi->s_journal;
        struct ext4_super_block *es = sbi->s_es;
 
        def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
@@ -729,8 +730,15 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
                seq_printf(seq, ",commit=%u",
                           (unsigned) (sbi->s_commit_interval / HZ));
        }
-       if (test_opt(sb, BARRIER))
-               seq_puts(seq, ",barrier=1");
+       /*
+        * We're changing the default of barrier mount option, so
+        * let's always display its mount state so it's clear what its
+        * status is.
+        */
+       seq_puts(seq, ",barrier=");
+       seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
+       if (test_opt(sb, JOURNAL_ASYNC_COMMIT))
+               seq_puts(seq, ",journal_async_commit");
        if (test_opt(sb, NOBH))
                seq_puts(seq, ",nobh");
        if (!test_opt(sb, EXTENTS))
@@ -979,7 +987,7 @@ static int parse_options (char *options, struct super_block *sb,
        int data_opt = 0;
        int option;
 #ifdef CONFIG_QUOTA
-       int qtype;
+       int qtype, qfmt;
        char *qname;
 #endif
 
@@ -1162,9 +1170,11 @@ static int parse_options (char *options, struct super_block *sb,
                case Opt_grpjquota:
                        qtype = GRPQUOTA;
 set_qf_name:
-                       if (sb_any_quota_enabled(sb)) {
+                       if ((sb_any_quota_enabled(sb) ||
+                            sb_any_quota_suspended(sb)) &&
+                           !sbi->s_qf_names[qtype]) {
                                printk(KERN_ERR
-                                       "EXT4-fs: Cannot change journalled "
+                                       "EXT4-fs: Cannot change journaled "
                                        "quota options when quota turned on.\n");
                                return 0;
                        }
@@ -1200,9 +1210,11 @@ set_qf_name:
                case Opt_offgrpjquota:
                        qtype = GRPQUOTA;
 clear_qf_name:
-                       if (sb_any_quota_enabled(sb)) {
+                       if ((sb_any_quota_enabled(sb) ||
+                            sb_any_quota_suspended(sb)) &&
+                           sbi->s_qf_names[qtype]) {
                                printk(KERN_ERR "EXT4-fs: Cannot change "
-                                       "journalled quota options when "
+                                       "journaled quota options when "
                                        "quota turned on.\n");
                                return 0;
                        }
@@ -1213,10 +1225,20 @@ clear_qf_name:
                        sbi->s_qf_names[qtype] = NULL;
                        break;
                case Opt_jqfmt_vfsold:
-                       sbi->s_jquota_fmt = QFMT_VFS_OLD;
-                       break;
+                       qfmt = QFMT_VFS_OLD;
+                       goto set_qf_format;
                case Opt_jqfmt_vfsv0:
-                       sbi->s_jquota_fmt = QFMT_VFS_V0;
+                       qfmt = QFMT_VFS_V0;
+set_qf_format:
+                       if ((sb_any_quota_enabled(sb) ||
+                            sb_any_quota_suspended(sb)) &&
+                           sbi->s_jquota_fmt != qfmt) {
+                               printk(KERN_ERR "EXT4-fs: Cannot change "
+                                       "journaled quota options when "
+                                       "quota turned on.\n");
+                               return 0;
+                       }
+                       sbi->s_jquota_fmt = qfmt;
                        break;
                case Opt_quota:
                case Opt_usrquota:
@@ -1241,6 +1263,9 @@ clear_qf_name:
                case Opt_quota:
                case Opt_usrquota:
                case Opt_grpquota:
+                       printk(KERN_ERR
+                               "EXT4-fs: quota options not supported.\n");
+                       break;
                case Opt_usrjquota:
                case Opt_grpjquota:
                case Opt_offusrjquota:
@@ -1248,7 +1273,7 @@ clear_qf_name:
                case Opt_jqfmt_vfsold:
                case Opt_jqfmt_vfsv0:
                        printk(KERN_ERR
-                               "EXT4-fs: journalled quota options not "
+                               "EXT4-fs: journaled quota options not "
                                "supported.\n");
                        break;
                case Opt_noquota:
@@ -1333,14 +1358,14 @@ clear_qf_name:
                }
 
                if (!sbi->s_jquota_fmt) {
-                       printk(KERN_ERR "EXT4-fs: journalled quota format "
+                       printk(KERN_ERR "EXT4-fs: journaled quota format "
                                        "not specified.\n");
                        return 0;
                }
        } else {
                if (sbi->s_jquota_fmt) {
-                       printk(KERN_ERR "EXT4-fs: journalled quota format "
-                                       "specified with no journalling "
+                       printk(KERN_ERR "EXT4-fs: journaled quota format "
+                                       "specified with no journaling "
                                        "enabled.\n");
                        return 0;
                }
@@ -1581,7 +1606,7 @@ static void ext4_orphan_cleanup (struct super_block * sb,
                        int ret = ext4_quota_on_mount(sb, i);
                        if (ret < 0)
                                printk(KERN_ERR
-                                       "EXT4-fs: Cannot turn on journalled "
+                                       "EXT4-fs: Cannot turn on journaled "
                                        "quota: error %d\n", ret);
                }
        }
@@ -1890,6 +1915,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
        sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
 
        set_opt(sbi->s_mount_opt, RESERVATION);
+       set_opt(sbi->s_mount_opt, BARRIER);
 
        /*
         * turn on extents feature by default in ext4 filesystem
@@ -2172,6 +2198,29 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
            EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL)) {
                if (ext4_load_journal(sb, es, journal_devnum))
                        goto failed_mount3;
+               if (!(sb->s_flags & MS_RDONLY) &&
+                   EXT4_SB(sb)->s_journal->j_failed_commit) {
+                       printk(KERN_CRIT "EXT4-fs error (device %s): "
+                              "ext4_fill_super: Journal transaction "
+                              "%u is corrupt\n", sb->s_id, 
+                              EXT4_SB(sb)->s_journal->j_failed_commit);
+                       if (test_opt (sb, ERRORS_RO)) {
+                               printk (KERN_CRIT
+                                       "Mounting filesystem read-only\n");
+                               sb->s_flags |= MS_RDONLY;
+                               EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+                               es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+                       }
+                       if (test_opt(sb, ERRORS_PANIC)) {
+                               EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+                               es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+                               ext4_commit_super(sb, es, 1);
+                               printk(KERN_CRIT
+                                      "EXT4-fs (device %s): mount failed\n",
+                                     sb->s_id);
+                               goto failed_mount4;
+                       }
+               }
        } else if (journal_inum) {
                if (ext4_create_journal(sb, es, journal_inum))
                        goto failed_mount3;
@@ -3106,7 +3155,7 @@ static int ext4_release_dquot(struct dquot *dquot)
 
 static int ext4_mark_dquot_dirty(struct dquot *dquot)
 {
-       /* Are we journalling quotas? */
+       /* Are we journaling quotas? */
        if (EXT4_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
            EXT4_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
                dquot_mark_dquot_dirty(dquot);
@@ -3153,23 +3202,42 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
 
        if (!test_opt(sb, QUOTA))
                return -EINVAL;
-       /* Not journalling quota? */
-       if ((!EXT4_SB(sb)->s_qf_names[USRQUOTA] &&
-           !EXT4_SB(sb)->s_qf_names[GRPQUOTA]) || remount)
+       /* When remounting, no checks are needed and in fact, path is NULL */
+       if (remount)
                return vfs_quota_on(sb, type, format_id, path, remount);
+
        err = path_lookup(path, LOOKUP_FOLLOW, &nd);
        if (err)
                return err;
+
        /* Quotafile not on the same filesystem? */
        if (nd.path.mnt->mnt_sb != sb) {
                path_put(&nd.path);
                return -EXDEV;
        }
-       /* Quotafile not of fs root? */
-       if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
-               printk(KERN_WARNING
-                       "EXT4-fs: Quota file not on filesystem root. "
-                       "Journalled quota will not work.\n");
+       /* Journaling quota? */
+       if (EXT4_SB(sb)->s_qf_names[type]) {
+               /* Quotafile not of fs root? */
+               if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
+                       printk(KERN_WARNING
+                               "EXT4-fs: Quota file not on filesystem root. "
+                               "Journaled quota will not work.\n");
+       }
+
+       /*
+        * When we journal data on quota file, we have to flush journal to see
+        * all updates to the file when we bypass pagecache...
+        */
+       if (ext4_should_journal_data(nd.path.dentry->d_inode)) {
+               /*
+                * We don't need to lock updates but journal_flush() could
+                * otherwise be livelocked...
+                */
+               jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
+               jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+               jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
+       }
+
        path_put(&nd.path);
        return vfs_quota_on(sb, type, format_id, path, remount);
 }