From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Hi folks,
This series contains a number of target optimizations added during
recent prototype scsi-mq performance profiling in order to avoid
unnecessary se_cmd->t_state_lock acquire/release in fast path I/O
submission and completion code.
All of the target optimizations are independent of driver code, so
all fabrics should benefit from these improvements.
Also included are two vhost/scsi specific patches, one in the same
vein to avoid unnecessary se_cmd->t_state_lock access, and the second
to convert vhost/scsi to proper cmd_kref TARGET_SCF_ACK_KREF usage.
Please have a look.
Thanks,
--nab
Nicholas Bellinger (9):
target: Add transport_cmd_check_stop write_pending bit
target: Drop unnecessary CMD_T_DEV_ACTIVE check from
transport_lun_remove_cmd
target: Remove legacy t_fe_count + avoid t_state_lock access in
transport_put_cmd
target: Avoid extra t_state_lock access in __target_execute_cmd
target: Drop unnecessary t_state_lock access for
SCF_SUPPORTED_SAM_OPCODE assignment
iscsi-target: Avoid unnecessary t_state_lock during unsolicited
data-out check
target: Drop legacy se_cmd->check_release bit
vhost/scsi: Drop unnecessary wait_for_tasks=true usage with
transport_generic_free_cmd
vhost/scsi: Convert to se_cmd->cmd_kref TARGET_SCF_ACK_KREF usage
drivers/target/iscsi/iscsi_target.c | 6 ---
drivers/target/target_core_tmr.c | 12 +----
drivers/target/target_core_transport.c | 72 ++++++++-----------------------
drivers/vhost/scsi.c | 33 +++++++++------
include/target/target_core_base.h | 3 -
5 files changed, 41 insertions(+), 85 deletions(-)
--
1.7.2.5
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
