From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Wed, 28 May 2008 22:56:55 +0000 (+0900)
Subject: [SCSI] bsg: fix bsg_mutex hang with device removal
X-Git-Tag: v2.6.27-rc1~1059^2~44
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f27e3ed11e67c5ee19d560a50eafd93cf8c6682;p=pandora-kernel.git

[SCSI] bsg: fix bsg_mutex hang with device removal

We don't need to hold bsg_mutex during bsg_complete_all_commands(). It
leads to a problem that we block bsg_unregister_queue during
bsg_complete_all_commands (untill all the outstanding commands
complete).

Thanks to Pete Wyckoff for finding the bug and testing the patch.

The detailed bug report is:

http://marc.info/?l=linux-scsi&m=121182137132145&w=2

Tested-by: Pete Wyckoff <pw@osc.edu>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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