Hi linux-scsi-owner,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on mkp-scsi/for-next]
[also build test ERROR on v4.19-rc8 next-20181019]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/
On Fri, 2018-10-19 at 15:55 -0400, Douglas Gilbert wrote:
> On 2018-10-19 11:22 a.m., Bart Van Assche wrote:
> > On Fri, 2018-10-19 at 02:24 -0400, Douglas Gilbert wrote:
> > > static void
> > > -sg_fill_request_table(struct sg_fd *sfp, struct sg_req_info *rinfo)
> > > +sg_fill_request_table(struct
On 2018-10-19 11:22 a.m., Bart Van Assche wrote:
On Fri, 2018-10-19 at 02:24 -0400, Douglas Gilbert wrote:
static void
-sg_fill_request_table(struct sg_fd *sfp, struct sg_req_info *rinfo)
+sg_fill_request_table(struct sg_fd *sfp, struct sg_req_info *rinfo,
+ int max_num)
{
On Fri, 2018-10-19 at 10:38 -0400, Tony Battersby wrote:
> Incidentally, I have been using my own home-grown target-mode SCSI
> system for the past 16 years, but now I am starting to look into
> switching to SCST. I was just reading about their "SGV cache":
>
> http://scst.sourceforge.net/scst_pg
On Fri, 2018-10-19 at 02:24 -0400, Douglas Gilbert wrote:
> static void
> -sg_fill_request_table(struct sg_fd *sfp, struct sg_req_info *rinfo)
> +sg_fill_request_table(struct sg_fd *sfp, struct sg_req_info *rinfo,
> + int max_num)
> {
> struct sg_request *srp;
>
On 10/19/18 2:24 AM, Douglas Gilbert wrote:
> + if (sfp->tot_fd_thresh)
> + sfp->sum_fd_dlens += align_sz;
>
What lock protects sfp->sum_fd_dlens?
> /*
> @@ -2216,38 +2401,85 @@ sg_add_request(struct sg_fd *sfp)
> * data length exceeds rem_sgat_thresh then the data (or sgat) i
Hi linux-scsi-owner,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on mkp-scsi/for-next]
[also build test WARNING on v4.19-rc8 next-20181019]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://git
Remove fixed 16 sg_request object array and replace with an active
rq_list plus a request free list. Add finer grained spin lock to
sg_request and do a major rework on locking. sg_request objects now
are only de-allocated when the owning file descriptor is closed.
This simplifies locking issues.
S
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