From ee480683d975973e3ff679850871e00e011c4a96 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 13 Nov 2013 18:34:55 -0800 Subject: target: Convert se_device statistics to atomic_long_t This patch converts the handful of se_device statistics to type atomic_long_t, instead of using se_device->stats_lock when incrementing these values. More importantly, go ahead and drop the spinlock usage within transport_lookup_cmd_lun() fast-path code. Signed-off-by: Nicholas Bellinger --- include/target/target_core_base.h | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'include/target') diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 96bf1b0239cc..fab91baf8ef4 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -683,11 +683,10 @@ struct se_device { /* Pointer to transport specific device structure */ u32 dev_index; u64 creation_time; - u32 num_resets; - u64 num_cmds; - u64 read_bytes; - u64 write_bytes; - spinlock_t stats_lock; + atomic_long_t num_resets; + atomic_long_t num_cmds; + atomic_long_t read_bytes; + atomic_long_t write_bytes; /* Active commands on this virtual SE device */ atomic_t simple_cmds; atomic_t dev_ordered_id; -- cgit v1.2.3