• Nicholas Bellinger's avatar
    target: Add force_pr_aptpl device attribute · 92404e60
    Nicholas Bellinger authored
    This patch adds a force_pr_aptpl device attribute used to force SPC-3 PR
    Activate Persistence across Target Power Loss (APTPL) operation.  This
    makes PR metadata write-out occur during state change regardless if new
    PERSISTENT_RESERVE_OUT CDBs have their APTPL feature bit set.
    This is useful during H/A failover in active/passive setups where all PR
    state is being re-created on a different node, driven by configfs backend
    device + export layout and pre-loaded $DEV/pr/res_aptpl_metadata.
    Cc: Mike Christie <michaelc@cs.wisc.edu>
    Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
target_core_base.h 26.6 KB