Ming Zhang wrote:

On Wed, 2004-11-10 at 10:05, Paul Clements wrote:

quoted

Ming Zhang wrote:

quoted

is there any technical issue that lead not to be implemented?

No. In fact, it has been implemented. Both Peter T. Breuer and I have 
come up with slightly different patches to implement the write only 
functionality.

can u send me the patch then i can have a look?

my patches are here:

http://parisc-linux.org/~jejb/md_bitmap/

you're looking for the async write portion of the code, which has the 
write-only functionality in it (later patches do not contain that code, 
so look at the older ones)

check the mailing list archives for discussion

Peter's patch is here:

http://marc.theaimsgroup.com/?l=linux-raid&m=109238533827986&w=2


--
Paul