On Thu, Sep 29, 2011 at 4:55 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > On Thu, Sep 29, 2011 at 04:35:44PM +0300, Kasatkin, Dmitry wrote: >> Hello All, >> >> I would like to implement such block device, which can store >> additional information along with the block data. >> For example. so if file system has 4k block, I would like to store >> 4k+256b of additional information... >> >> Can such block device be implemented with device mapper? > > Given your other recent posts you probably want to take a look at > dm-verity: > > http://selinuxproject.org/~jmorris/lss2011_slides/LSS_11_Integrity_checked_block_devices.pdf > Yes... I know this.. That target stores integrity data on a separate block device. I am looking to possibility to store data with the block... Thanks > (even if that's not strictly what you are asking for here) > > -- > dm-devel mailing list > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel > -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
