I think adding support to JBD to deal with "bio"s would be a valuable generic extention. Anyway its dealing with "bh"s now.
Thanks, Badari
Suparna Bhattacharya wrote:
What would be really nice is if we could do this in a way that
enables reuse of generic paths even for ordered mode. One thought
that comes to mind is journal commit waiting for writeback to complete on the data pages which need to be flushed to disk before meta-data can be committed, much like we do for O_SYNC.
I realise that JBD is intended to work at a level of abstraction where it has no awareness of filesystems - hence the correspondence with buffer heads all through. So would the above be a complete no-no ?
Regards Suparna
On Fri, Mar 04, 2005 at 06:02:35PM +0300, Alex Tomas wrote:
On 03 Mar 2005 17:12:14 -0800 Badari Pulavarty <[EMAIL PROTECTED]> wrote:
One more thing, we need to keep in mind is - we need to make sure
that "ordered" mode also improved - since all our testcode focuses on "writeback" mode and the default mode is "ordered" :(
I've just cooked the patch to implement ordered mode for delayed allocation path. please take it:
ftp://ftp.clusterfs.com/pub/people/alex/2.6.11/ext3-delalloc-ordered-2.6.11-0.1.patch
Stephen, Andrew could you review it, please?
thanks, Alex
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