Re: How to verify block numbers of file ?

On Sun, Feb 20, 2011 at 8:47 PM, kashish bhatia <koolest77@gmail.com> wrote:

What exactly FIBMAP is  and how to use it ?

For instance , if I made my own module and I am using ioctl. Then how should I use it?

FIBMAP is an ioctl. It is supposed to be called from a userspace program. You can use it from userspace like this: http://smackerelofopinion.blogspot.com/2009//fibmap-ioctl-file-system-block-... If that is what you want to do, you can do the same thing from the kernel, you can look up ioctl_fibmap in fs/ioctl.c and see if you get what you need. -Abhijit