On 1/18/21 21:06, Chaitanya Kulkarni wrote:

Hi,

This is a *compile only RFC* which adds a generic helper to initialize
the various fields of the bio that is repeated all the places in
file-systems, block layer, and drivers.

The new helper allows callers to initialize various members such as
bdev, sector, private, end io callback, io priority, and write hints.

The objective of this RFC is to only start a discussion, this it not 
completely tested at all.                                                                                                            
Following diff shows code level benefits of this helper :-
 38 files changed, 124 insertions(+), 236 deletions(-)

-ck

Thanks for replying Mike, Josef and Christoph.

I'll move forward with Christoph's suggestion and get rid of
optional parameters which is making this API hard to use.