From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 6 Jun 2013 08:40:27 +0000 (-0700)
Subject: target: Avoid extra t_state_lock access in __target_execute_cmd
X-Git-Tag: v3.11-rc1~22^2~34
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a398b973184342f30ab97711b9c38fd75df0384;p=pandora-kernel.git

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>
---

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