tree 99670422b8145b921a2561d780f26d4db4ed6488
parent c1c35d52251b0941a72b0cdb862e85f0eba6b1bb
author Nicholas Bellinger <nab@linux-iscsi.org> 1370508027 -0700
committer Nicholas Bellinger <nab@linux-iscsi.org> 1371762642 -0700

target: Avoid extra t_state_lock access in __target_execute_cmd

This patch makes target_execute_cmd() set CMD_T_BUSY|CMD_T_SENT while
holding se_cmd->t_state_lock, in order to avoid the extra aquire/release
in __target_execute_cmd().

It also clears these bits in case of a target_handle_task_attr()
failure.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Roland Dreier <roland@kernel.org>
Cc: Kent Overstreet <koverstreet@google.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: Moussa Ba <moussaba@micron.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>