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authorNicholas Bellinger <nab@linux-iscsi.org>2013-11-13 18:54:45 -0800
committerNicholas Bellinger <nab@linux-iscsi.org>2013-11-19 21:38:52 -0800
commit04f3b31bff720f01d684100c868c88f67ced8dc8 (patch)
treed9b5fac82a5e6c23b98f33c64901affa37bbfd67 /drivers/target/iscsi/iscsi_target_erl0.c
parenttarget: Convert se_device statistics to atomic_long_t (diff)
downloadlinux-dev-04f3b31bff720f01d684100c868c88f67ced8dc8.tar.xz
linux-dev-04f3b31bff720f01d684100c868c88f67ced8dc8.zip
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>
Diffstat (limited to 'drivers/target/iscsi/iscsi_target_erl0.c')
-rw-r--r--drivers/target/iscsi/iscsi_target_erl0.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index cbea7f16d625..0d1e6ee3e992 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -785,7 +785,7 @@ static void iscsit_handle_time2retain_timeout(unsigned long data)
tiqn->sess_err_stats.last_sess_failure_type =
ISCSI_SESS_ERR_CXN_TIMEOUT;
tiqn->sess_err_stats.cxn_timeout_errors++;
- sess->conn_timeout_errors++;
+ atomic_long_inc(&sess->conn_timeout_errors);
spin_unlock(&tiqn->sess_err_stats.lock);
}
}