On Mon, Apr 2, 2012 at 5:59 PM, Pritam Bankar <pritambankar1988@gmail.com>wrote:

May I know what is e4_inode ?

Thanks, Pritam

On Mon, Mar 12, 2012 at 6:51 PM, Ganesh Patil <patil.ganesh170@gmail.com>wrote:

...

Hello,

I have printed the i_blocks[EXT4_N_BLOCKS] filed from ext4_inode structure. of my file (a.txt);

code: ret= ext4_get_inode_loc(d_inode1, &iloc); e4_inode= ext4_raw_inode(&iloc); for(i=0;i<5;i++) { printk(KERN_INFO "%d",e4_inode->i_block[i]); }

I got the following result.:

127754 4 0 0 1 8705

what is the 127754 (Address of extent or data block)? what is 8705 &1 ?

-- Regards, Ganesh Patil.

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--

Pritam Bankar

Above e4_inode field is the pointer of type struct ext4_inode i.e on disk structure of ext4 inode. i.e Struct ext4_inode *e4_inode=ext4_raw_inode(&iloc); Sir, but for above question I got answer. because i copied first 12 byte of i_block[..] to ext4_header structure and next 12 bytes in to ext4_extent.so from that I got actual physical block numbers. struct ext4_extent_header *eeh = (struct ext4_extent_header*)EXT4_I(d_inode1)->i_data; struct ext4_extent *eex=eex = EXT_FIRST_EXTENT(eeh); -- Regards, Ganesh Patil.