lkml.org 
[lkml]   [2001]   [Nov]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Lse-tech] SCSI io_request_lock patch
Jens Axboe [axboe@suse.de] wrote:
> On Wed, Nov 14 2001, Jonathan Lahr wrote:
> > > It's absolutely worthless. Look, it ties in with the points I made
> > > below. You are exporting the merge functions for instance, and setting
> > > them in the queue. This will cause scsi_merge not to use it's own
> > > functions, broken.
> >
> > As in the baseline, initialize_merge_fn overwrites these pointers:
> > q->back_merge_fn = scsi_back_merge_fn_;
> > q->front_merge_fn = scsi_front_merge_fn_;
> > q->merge_requests_fn = scsi_merge_requests_fn_;
>
> I had forgotten I had #if 0 out the check for already set back_merge etc
> in scsi_merge -- however that's still beside the point. _Why_ are you
> exporting the ll_rw_blk functions and setting them just to have them
> overridden? Makes no sense.
...
> Don't export the merge functions ever, define your own if you really
> need them. You don't, though.

That resulted merely from basing scsi_init_queue on blk_init_queue.
I'll simplify the code by removing these unnecessary assignments.

--
Jonathan Lahr
IBM Linux Technology Center
Beaverton, Oregon
lahr@us.ibm.com
503-578-3385

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:18    [W:0.097 / U:2.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site