May 14, 2013
6:29 a.m.
Hi, On Mon, May 13, 2013 at 9:52 PM, Matthias Brugger <matthias.bgg@gmail.com> wrote:
El 13/05/2013 10:07, "shampavman" <shampavman.cg@gmail.com> va escriure:
Hi all,
Supposing i create a file of size 10K, it will occupy 2 blocks (4K each). Now if i want to read only 1 block from it how can i do it?
read(fd, buf, 4096) ; would this mean i would read the first block and all its contents?
One way to do this is use the FIBMAP ioctl to the get the block numbers of a file and then seek the disk /dev/sdX directly and use the read() to get data block. Regards.