Raghu R. Arur wrote:
given a file descriptor of a file ( not a device file like /dev/hda but a normal file like /sbin/ifconfig which actually resides on the device) can we get the information about on which device it is stored.You can use "fget (fd)" to return a "struct file" pointer.
In this "struct file" pointer, you can use the "struct vfsmount *f_vfsmnt" field with the "mntget" function to return the "struct vfsmount" that contains the device this file is in (char *mnt_devname), plus a lot more info about that device (check the "struct vfsmount" in include/linux/mount.h)
Kind Regards,
Felipe
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