2008/1/21, Christian Hesse <mail@xxxxxxxxxxxx>: > Back in early december I reported the problem for btrfs 0.9. Seems like the > lockfs call still is not implemented. Any hints what I need when I try to > code it myself? Please try this dirty patch. I think it can solve your problem. Regards YZ --- diff -r ac53d7df4c11 super.c --- a/super.c Thu Jan 17 12:58:00 2008 -0500 +++ b/super.c Mon Jan 21 17:10:00 2008 +0800 @@ -423,6 +423,18 @@ static struct file_system_type btrfs_fs_ .fs_flags = FS_REQUIRES_DEV, }; +static void btrfs_write_super_lockfs(struct super_block *sb) +{ + struct btrfs_root *root = btrfs_sb(sb); + btrfs_transaction_flush_work(root); +} + +static void btrfs_unlockfs(struct super_block *sb) +{ + struct btrfs_root *root = btrfs_sb(sb); + btrfs_transaction_queue_work(root, HZ * 30); +} + static struct super_operations btrfs_super_ops = { .delete_inode = btrfs_delete_inode, .put_inode = btrfs_put_inode, @@ -435,6 +447,8 @@ static struct super_operations btrfs_sup .alloc_inode = btrfs_alloc_inode, .destroy_inode = btrfs_destroy_inode, .statfs = btrfs_statfs, + .write_super_lockfs = btrfs_write_super_lockfs, + .unlockfs = btrfs_unlockfs, }; static int __init init_btrfs_fs(void) - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html