From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 6 Jun 2013 08:35:18 +0000 (-0700)
Subject: target: Add transport_cmd_check_stop write_pending bit
X-Git-Tag: v3.11-rc1~22^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=862e6389a78992d4ee44bf4f60051fe560470320;p=pandora-kernel.git

target: Add transport_cmd_check_stop write_pending bit

This patch adds a new transport_cmd_check_stop() parameter for signaling
when TRANSPORT_WRITE_PENDING needs to be set.

This allows transport_generic_new_cmd() to avoid the extra lock acquire/release
of ->t_state_lock in the fast path for DMA_TO_DEVICE operations ahead of
transport_cmd_check_stop() + se_tfo->write_pending().

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>
---

Reading git-diff-tree failed