How to access in-memory superblock structure.

[kernelnewbie]

Hello everyone,

I am implementing c program to access ext3 file system's metadata.

I want to know how to access members of the in-memory superblock structure.

I am able access on-disk ext3_super_block structure but dont know how to access in- memory structure and its members.

If anyone knows about it please give me c code samples to do this.

Thanks in advance.

[Rubberman]

You would probably have to do this with a kernel module and not a user-space module. You could then create an ioctl() for a user-space program to get this information from your kernel module. As for C code examples, you are going to need to look at the ext2/ext3 drivers for information about that.