On 01/29/2016 03:57 PM, Hannes Reinecke wrote: > On 11/11/2015 11:34 AM, Hannes Reinecke wrote: >> Hi all, >> >> having been subjected to the pain of trying to bootstrap a really >> large machine with systemd I decided to implement LUN masking in >> scsi_transport_fc. >> The principle is simple: disallow the automated LUN scanning when >> discovering a rport, and create udev rules which selectively >> enable individual LUNs by echoing the relevant values in the 'scan' >> attribute of the SCSI host. >> With that I'm able to boot an arbitrary large machine without >> running into any udev or systemd imposed timeout. >> To _disable_ LUN masking and restoring the original behaviour >> I've noticed that the 'scan' sysfs attribute is actually synchronous, >> ie the calling process will be blocked until the entire LUN scan >> is completed. >> So I've added another module parameter 'async_user_scan' to >> move the scanning onto the existing scan workqueue, and unblock >> the calling process. >> >> As usual, comments and reviews are welcome. >> >> Hannes Reinecke (2): >> scsi_transport_fc: implement 'disable_target_scan' module parameter >> scsi_transport_fc: Implement 'async_user_scan' module parameter >> >> drivers/scsi/scsi_transport_fc.c | 47 +++++++++++++++++++++++++++++++++++++--- >> 1 file changed, 44 insertions(+), 3 deletions(-) >> > Hmm. this seemed to have fallen through > Bah. Hit send too early. Any chance of a review for this one? Shall I resend the patches? Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg) -- 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
