ext4: Enable delalloc by default.

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

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b9ad3d852061c2f63c67f99d10b62a04b1a8ba83..4e104dd0ec212124b42da43c5ae08ebe62f663f7 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -506,6 +506,7 @@ static void ext4_put_super (struct super_block * sb)
        ext4_ext_release(sb);
        ext4_xattr_put_super(sb);
        jbd2_journal_destroy(sbi->s_journal);
+       sbi->s_journal = NULL;
        if (!(sb->s_flags & MS_RDONLY)) {
                EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
                es->s_state = cpu_to_le16(sbi->s_mount_state);
@@ -572,6 +573,12 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
        memset(&ei->i_cached_extent, 0, sizeof(struct ext4_ext_cache));
        INIT_LIST_HEAD(&ei->i_prealloc_list);
        spin_lock_init(&ei->i_prealloc_lock);
+       jbd2_journal_init_jbd_inode(&ei->jinode, &ei->vfs_inode);
+       ei->i_reserved_data_blocks = 0;
+       ei->i_reserved_meta_blocks = 0;
+       ei->i_allocated_meta_blocks = 0;
+       ei->i_delalloc_reserved_flag = 0;
+       spin_lock_init(&(ei->i_block_reservation_lock));
        return &ei->vfs_inode;
 }
 
@@ -636,6 +643,8 @@ static void ext4_clear_inode(struct inode *inode)
        EXT4_I(inode)->i_block_alloc_info = NULL;
        if (unlikely(rsv))
                kfree(rsv);
+       jbd2_journal_release_jbd_inode(EXT4_SB(inode->i_sb)->s_journal,
+                                      &EXT4_I(inode)->jinode);
 }
 
 static inline void ext4_show_quota_options(struct seq_file *seq, struct super_block *sb)
@@ -747,6 +756,9 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
                seq_puts(seq, ",nomballoc");
        if (test_opt(sb, I_VERSION))
                seq_puts(seq, ",i_version");
+       if (!test_opt(sb, DELALLOC))
+               seq_puts(seq, ",nodelalloc");
+
 
        if (sbi->s_stripe)
                seq_printf(seq, ",stripe=%lu", sbi->s_stripe);
@@ -894,7 +906,7 @@ enum {
        Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
        Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
        Opt_grpquota, Opt_extents, Opt_noextents, Opt_i_version,
-       Opt_mballoc, Opt_nomballoc, Opt_stripe,
+       Opt_mballoc, Opt_nomballoc, Opt_stripe, Opt_delalloc, Opt_nodelalloc,
 };
 
 static match_table_t tokens = {
@@ -953,6 +965,8 @@ static match_table_t tokens = {
        {Opt_nomballoc, "nomballoc"},
        {Opt_stripe, "stripe=%u"},
        {Opt_resize, "resize"},
+       {Opt_delalloc, "delalloc"},
+       {Opt_nodelalloc, "nodelalloc"},
        {Opt_err, NULL},
 };
 
@@ -1318,6 +1332,9 @@ set_qf_format:
                        set_opt(sbi->s_mount_opt, I_VERSION);
                        sb->s_flags |= MS_I_VERSION;
                        break;
+               case Opt_nodelalloc:
+                       clear_opt(sbi->s_mount_opt, DELALLOC);
+                       break;
                case Opt_mballoc:
                        set_opt(sbi->s_mount_opt, MBALLOC);
                        break;
@@ -1331,6 +1348,9 @@ set_qf_format:
                                return 0;
                        sbi->s_stripe = option;
                        break;
+               case Opt_delalloc:
+                       set_opt(sbi->s_mount_opt, DELALLOC);
+                       break;
                default:
                        printk (KERN_ERR
                                "EXT4-fs: Unrecognized mount option \"%s\" "
@@ -1858,8 +1878,8 @@ static unsigned long ext4_get_stripe_size(struct ext4_sb_info *sbi)
 }
 
 static int ext4_fill_super (struct super_block *sb, void *data, int silent)
-                               __releases(kernel_sem)
-                               __acquires(kernel_sem)
+                               __releases(kernel_lock)
+                               __acquires(kernel_lock)
 
 {
        struct buffer_head * bh;
@@ -1899,11 +1919,6 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
                goto out_fail;
        }
 
-       if (!sb_set_blocksize(sb, blocksize)) {
-               printk(KERN_ERR "EXT4-fs: bad blocksize %d.\n", blocksize);
-               goto out_fail;
-       }
-
        /*
         * The ext4 superblock will not be buffer aligned for other than 1kB
         * block sizes.  We need to calculate the offset from buffer start.
@@ -1976,6 +1991,13 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
         */
        set_opt(sbi->s_mount_opt, MBALLOC);
 
+       /*
+        * enable delayed allocation by default
+        * Use -o nodelalloc to turn it off
+        */
+       set_opt(sbi->s_mount_opt, DELALLOC);
+
+
        if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum,
                            NULL, 0))
                goto failed_mount;
@@ -2414,6 +2436,13 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
                test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA ? "ordered":
                "writeback");
 
+       if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
+               printk(KERN_WARNING "EXT4-fs: Ignoring delalloc option - "
+                               "requested data journaling mode\n");
+               clear_opt(sbi->s_mount_opt, DELALLOC);
+       } else if (test_opt(sb, DELALLOC))
+               printk(KERN_INFO "EXT4-fs: delayed allocation enabled\n");
+
        ext4_ext_init(sb);
        ext4_mb_init(sb, needs_recovery);
 
@@ -2428,6 +2457,7 @@ cantfind_ext4:
 
 failed_mount4:
        jbd2_journal_destroy(sbi->s_journal);
+       sbi->s_journal = NULL;
 failed_mount3:
        percpu_counter_destroy(&sbi->s_freeblocks_counter);
        percpu_counter_destroy(&sbi->s_freeinodes_counter);
@@ -3381,7 +3411,7 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
                        err = ext4_journal_dirty_metadata(handle, bh);
                else {
                        /* Always do at least ordered writes for quotas */
-                       err = ext4_journal_dirty_data(handle, bh);
+                       err = ext4_jbd2_file_inode(handle, inode);
                        mark_buffer_dirty(bh);
                }
                brelse(bh);