On Wed, Sep 05 2007 at 2:13 +0300, Kiyoshi Ueda <k-ueda@xxxxxxxxxxxxx> wrote: > Hi, > > On Tue, 4 Sep 2007 17:25:14 -0400, "Halevy, Benny" <bhalevy@xxxxxxxxxxx> wrote: >> We suspect we'll still need the extern entry points for handling the bidi >> request in the scsi_io_completion() path as we only want to call >> end_that_request_chunk on req->next_rq and never >> end_that_request_last. >> >> (see >> http://www.bhalevy.com/open-osd/download/linux-2.6.23-rc2_and_iscsi-iscsi-2007_08_09/0005-SCSI-bidi-support.patch) > > If this patch-set is merged, there may be other way to do that. > > For tricky drivers, special interface, blk_end_request_callback(), > is added in the patch 5/7. > (http://marc.info/?l=linux-kernel&m=118860027714753&w=2) > Currently, only user of the interface is ide-cd (cdrom_newpc_intr()). > It needs to call only end_that_request_first() too. > > With the patch 7/7, you can set your own handler in rq->end_io() > to complete the request by your own way. > > Thanks, > Kiyoshi Ueda That will not work, as I will have no means of releasing the BIOs of the bidi request, which can not use end_request(). I guess as Jens said it's OK to remove them now, and later we can just add end_that_request_first(), will be enough. Or we can patch end_request() to also call __end_that_request_first(req->next_rq) if not NULL. Jens which method do you prefer? I will adjust my patches accordingly. Thanks Boaz Harrosh -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
