get_gfs2_sb does a get_fs_type without doing a put_filesystem and thus leaking a file_system_type reference everytime it's called.
Just use gfs2_fs_type directly instead of doing the lookup and thus fix the problem. Signed-off-by: Christoph Hellwig <[EMAIL PROTECTED]> Index: linux-2.6/fs/gfs2/ops_fstype.c =================================================================== --- linux-2.6.orig/fs/gfs2/ops_fstype.c 2008-02-25 18:53:11.000000000 +0100 +++ linux-2.6/fs/gfs2/ops_fstype.c 2008-02-25 18:53:36.000000000 +0100 @@ -874,7 +874,6 @@ static struct super_block* get_gfs2_sb(c { struct kstat stat; struct nameidata nd; - struct file_system_type *fstype; struct super_block *sb = NULL, *s; int error; @@ -886,8 +885,7 @@ static struct super_block* get_gfs2_sb(c } error = vfs_getattr(nd.path.mnt, nd.path.dentry, &stat); - fstype = get_fs_type("gfs2"); - list_for_each_entry(s, &fstype->fs_supers, s_instances) { + list_for_each_entry(s, &gfs2_fs_type.fs_supers, s_instances) { if ((S_ISBLK(stat.mode) && s->s_dev == stat.rdev) || (S_ISDIR(stat.mode) && s == nd.path.dentry->d_inode->i_sb)) {