Re: How to mount own file system in linux

Pekka Enberg
2006-07-19T08:56:27Z

Hi,

On 7/19/06, Chinmaya Mishra <chinmaya4@gmail.com> wrote:
> Can you suggest me where I can get some good documents to proceed or any
> dummy code if any.

See fs/ramfs/ for an example. There's also Documentation/filesystems/vfs.txt.

On 7/19/06, Chinmaya Mishra <chinmaya4@gmail.com> wrote:
> I have tried this with the following code but it gives some warning
> messages during compilation. The file system is registered but during
> the mount command segmentation fault occurs.

So maybe pay attention to the warnings?

> static struct super_block *rfs_read_super( struct super_block *sb, void
> *buf, int size);
> static struct file_system_type rfs = {"rfs", 0, rfs_read_super, NULL};

There's no read_super in struct file_system_type. See
include/linux/fs.h for details.

> int init_module(void) {

[snip]

> void cleanup_module(void) {

[snip]

This is the old way. You really want to be using module_init and
module_exit macros.