On Tue, Mar 1, 2011 at 12:18 PM, kashish bhatia <koolest77@xxxxxxxxx> wrote: > Hi all , > > If I want to display block numbers of a file. > For instance file size is 64KB and block size is 4KB. So the data will > accommodate in 16 blocks. > > Now I accessed an array named "i_block[ ]" present in ext2_inode structure. > This array stores the > block numbers of a file. > > The first 12 blocks are direct blocks which will store 48KB data of file and > the 13th block will be single indirect block which will store the rest of > the data. > > In this way I can directly get the data of 48KB by referring first 12 direct > blocks. > > My question is how can I access this 13th block to get the remaining block > numbers which will directly point to rest of the data. In kernel or userspace ? In userspace use debugfs. In kernel see the function ext3_block_to_path -- Thanks - Manish _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
