From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 26 Nov 2010 19:50:09 +0000 (-0500)
Subject: IB/srp: reduce lock coverage of command completion
X-Git-Tag: v2.6.38-rc1~406^2^8~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94a9174c630c8465ed9e97ecd242993429930c05;p=pandora-kernel.git

IB/srp: reduce lock coverage of command completion

We only need the lock to cover list and credit manipulations, so push
those into srp_remove_req() and update the call chains.

We reorder the request removal and command completion in
srp_process_rsp() to avoid the SCSI mid-layer sending another command
before we've released our request and added any credits returned by the
target. This prevents us from returning HOST_BUSY unneccesarily.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
[ broken out, small cleanups, and modified to avoid potential extraneous
  HOST_BUSY returns by David Dillow ]
Signed-off-by: David Dillow <dillowda@ornl.gov>
---

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