Messages in this thread | | | From | "Eric Youngdale" <> | Subject | Re: io_request_lock patch? | Date | Tue, 10 Jul 2001 16:09:19 -0400 |
| |
The bit that I had automated was to essentially fix each and every low-level SCSI driver such that each low-level driver would be responsible for it's own locking. At this point the patches and the tool are on hold - once the 2.5 kernel series gets underway, I can generate some fairly massive patchsets.
-Eric
----- Original Message ----- From: "Jonathan Lahr" <lahr@us.ibm.com> To: "Jens Axboe" <axboe@suse.de> Cc: <linux-kernel@vger.kernel.org>; <linux-scsi@vger.kernel.org> Sent: Tuesday, July 10, 2001 3:49 PM Subject: Re: io_request_lock patch?
> Jens Axboe [axboe@suse.de] wrote: > > On Mon, Jul 09 2001, Jonathan Lahr wrote: > > > > > > I have heard that a patch to reduce io_request_lock contention by > > > breaking it into per queue locks was released in the past. Does > > > anyone know where I could find this patch if it exists? > > > > I had a patch about a year ago that did it safely for the block layer > > and IDE at least, and also for selected SCSI hba's. Some of the latter > > variety are pretty hard and/or tedious to fixup, Eric Y has done some > > work automating this process almost completely. Until that is done, the > > general patch has no chance of being integrated. > > I am investigating reducing io_request_lock contention in the shorter term > if possible with smaller incremental modifications. So I'm first trying to > discover any previous work that might have been done toward this purpose. > > -- > 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-scsi" in > the body of a message to majordomo@vger.kernel.org >
- 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/
| |