> -----Original Message----- > From: Olaf Hering [mailto:olaf@xxxxxxxxx] > Sent: Tuesday, September 8, 2015 3:07 AM > To: KY Srinivasan <kys@xxxxxxxxxxxxx>; Haiyang Zhang > <haiyangz@xxxxxxxxxxxxx>; JBottomley@xxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-scsi@xxxxxxxxxxxxxxx; Olaf Hering > <olaf@xxxxxxxxx> > Subject: [PATCH] storvsc: use small sg_tablesize on x86 > > Reducing the sg_tablesize allows booting of 32bit kernels in VMs, after > commit be0cf6ca301c61458dc4aa1a37acf4f58d2ed3d6 ("scsi: storvsc: Set the > tablesize based on the information given by the host") > > [ 5.567138] hv_storvsc vmbus_1: adjusting sg_tablesize 0x800 -> 0x20 > > Signed-off-by: Olaf Hering <olaf@xxxxxxxxx> Reviewed-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> > --- > drivers/scsi/storvsc_drv.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c > index 40c43ae..36bf183 100644 > --- a/drivers/scsi/storvsc_drv.c > +++ b/drivers/scsi/storvsc_drv.c > @@ -1907,6 +1907,11 @@ static int storvsc_probe(struct hv_device *device, > * from the host. > */ > host->sg_tablesize = (stor_device->max_transfer_bytes >> > PAGE_SHIFT); > +#if defined(CONFIG_X86_32) > + dev_warn(&device->device, "adjusting sg_tablesize 0x%x -> 0x%x", > + host->sg_tablesize, > MAX_MULTIPAGE_BUFFER_COUNT); > + host->sg_tablesize = MAX_MULTIPAGE_BUFFER_COUNT; > +#endif > > /* Register the HBA and start the scsi bus scan */ > ret = scsi_add_host(host, &device->device); -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
