Hi, On Mon, May 13, 2013 at 9:52 PM, Matthias Brugger <matthias....@gmail.com> wrote: > > El 13/05/2013 10:07, "shampavman" <shampavman...@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. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
