Hi all, the generic persistent reservation framework already has callbacks for 'read_keys' and 'read_reservation', but these callbacks are not exposed via ioctls (unlike the other callbacks). As we need this information if we want to work with persistent reservations reliably add two new persistent reservation ioctls 'IOC_PR_READ_KEYS' and 'IOC_PR_READ_RESV' to expose this information to userspace. As usual, comments and reviews are welcome. Hannes Reinecke (3): block: add 'read_keys' persistent reservation ioctl block: add 'read_reservation' persistent reservation ioctl scsi: return PR generation if no reservation is held block/ioctl.c | 61 +++++++++++++++++++++++++++++++++++++++++ drivers/scsi/sd.c | 10 +++++-- include/linux/pr.h | 12 -------- include/uapi/linux/pr.h | 14 ++++++++++ 4 files changed, 82 insertions(+), 15 deletions(-) -- 2.35.3
