Re: [PATCH 0] rbd: layered writes

[Alex Elder <elder@inktank.com>]

On 04/19/2013 05:46 PM, Alex Elder wrote:
> This set of patches culminates in providing layered
> write functionality for rbd clone images.  Until the
> feature bits get enabled, most of this code is not
> yet activated.  But it has been tested and it's
> ready for review.  The feature will be enabled soon,
> after a few more things get cleaned up to prepare
> for it.

These patches are available in the "review/wip-copyup"
of the ceph-client git repository.  They are based on
the branch "review/wip-4679-3" found there.

					-Alex
> 
> 					-Alex
> 
> [PATCH] libceph: fix two messenger bugs
>     Two bugs, two improvements.
> 
> [PATCH] libceph: support pages for class request data
>     This just defines a function that allows a page array
>     to be specified for the data to be written by an
>     object class method.
> 
> [PATCH 1/4] rbd: define separate read and write format funcs
> [PATCH 2/4] rbd: encapsulate submission of image object requests
> [PATCH 3/4] rbd: define zero_pages()
> [PATCH 4/4] rbd: support page array image requests
>     The first two of these are just cleanups.  The second two
>     add some functionality to allow image requests to use
>     page arrays for their object data.
> 
> [PATCH 1/2] rbd: implement full object parent reads
> [PATCH 2/2] rbd: issue a copyup for layered writes
>     These last two finally implement the layered copyup
>     functionality.  The first is sort of a half step, to
>     break up the review into smaller pieces.
>