Re: [RFC PATCH 1/2] bdi: Create a flag to indicate that a backing device needs stable page writes
From: Boaz Harrosh <hidden>
Date: 2012-11-01 06:25:30
Also in:
linux-fsdevel
Possibly related (same subject, not in this thread)
- 2012-10-30 · Re: [RFC PATCH 1/2] bdi: Create a flag to indicate that a backing device needs stable page writes · Boaz Harrosh <hidden>
- 2012-10-30 · Re: [RFC PATCH 1/2] bdi: Create a flag to indicate that a backing device needs stable page writes · NeilBrown <hidden>
- 2012-10-30 · Re: [RFC PATCH 1/2] bdi: Create a flag to indicate that a backing device needs stable page writes · Jan Kara <jack@suse.cz>
- 2012-10-30 · Re: [RFC PATCH 1/2] bdi: Create a flag to indicate that a backing device needs stable page writes · NeilBrown <hidden>
- 2012-10-30 · Re: [RFC PATCH 1/2] bdi: Create a flag to indicate that a backing device needs stable page writes · "Martin K. Petersen" <martin.petersen@oracle.com>
On 10/31/2012 10:51 PM, Darrick J. Wong wrote:
Of course, all that goes out the door with iscsi since it doesn't necessarily care about DIF/DIX but wants stable pages anyway. It'd be useful to be able to play around with iscsi too. Could you point me to where in the iscsi code it does the copy-and-checksum behavior?
I'll send you an untested proof of concept patch tomorrow. So at least you can see where the code is. But no guaranty that it actually works. You will need to dig into iscsi docs to enable it in config files, look for data_digest= or something like that. header digest is when only the headers are check-summed and data-digest is when all the data is check-summed.
--D
Cheers Boaz