Re: Re: Access content of file via inodes

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi People,

>
> Looks like I managed to get the blocks that belong to > this particular inode.
> But when I try to zero b_data, the data still appears > in the hard disk device
> (verified using hexdump).

> Any idea why? It's been troubling me for days.
>

When you change anything in the memory region pointed by b_data field of struct buffer_head, it just makes changes in memory (in buffer cache, to be precise). 
Did you commit these changes to disk by writing modified data of this block?

Nitin


--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/



[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux