Re: [PATCH] Drivers: hv: vmbus: Optimize vmbus_on_event
From: Wei Liu <wei.liu@kernel.org>
Date: 2022-08-15 15:31:56
Also in:
linux-scsi, lkml
From: Wei Liu <wei.liu@kernel.org>
Date: 2022-08-15 15:31:56
Also in:
linux-scsi, lkml
On Mon, Jul 25, 2022 at 02:37:28AM -0700, Saurabh Sengar wrote:
In the vmbus_on_event loop, 2 jiffies timer will not serve the purpose if callback_fn takes longer. For effective use move this check inside of callback functions where needed. Out of all the VMbus drivers using vmbus_on_event, only storvsc has a high packet volume, thus add this limit only in storvsc callback for now. There is no apparent benefit of loop itself because this tasklet will be scheduled anyway again if there are packets left in ring buffer. This patch removes this unnecessary loop as well. Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Unfortunately this missed the recent merge window so it will be picked up for the next release. Thanks, Wei.