This series adds support for a simplified Persistent Reservation API to the block layer. The intent is that both in-kernel and userspace consumers can use the API instead of having to hand craft SCSI or NVMe command through the various pass through interfaces. It also adds DM support as getting reservations through dm-multipath is a major pain with the current scheme. NVMe support currently isn't included as I don't have a multihost NVMe setup to test on, but Keith offered to test it and I'll have a patch for it shortly. The ioctl API is documented in Documentation/block/pr.txt, but to fully understand the concept you'll have to read up the SPC spec, PRs are too complicated that trying to rephrase them into different terminology is just going to create confusion. Note that Mike wants to include the DM patches so through the DM tree, so they are only included for reference. I also have a set of simple test tools available at: git://git.infradead.org/users/hch/pr-tests.git Changes since V1: - rename DM ->ioctl to ->prepare_ioctl - rename dm_get_ioctl_table to dm_get_live_table_for_ioctl - merge two DM patches into one - various spelling fixes -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
