tree d9b5fac82a5e6c23b98f33c64901affa37bbfd67
parent ee480683d975973e3ff679850871e00e011c4a96
author Nicholas Bellinger <nab@linux-iscsi.org> 1384397685 -0800
committer Nicholas Bellinger <nab@linux-iscsi.org> 1384925932 -0800

iscsi-target: Convert iscsi_session statistics to atomic_long_t

This patch converts a handful of iscsi_session statistics to type
atomic_long_t, instead of using iscsi_session->session_stats_lock
when incrementing these values.

More importantly, go ahead and drop the spinlock usage within
iscsit_setup_scsi_cmd(), iscsit_check_dataout_hdr(),
iscsit_send_datain(), and iscsit_build_rsp_pdu() fast-path code.

(Squash in Roland's  target: Remove write-only stats fields and lock
from struct se_node_acl)

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>