From: Arnd Bergmann <arnd@arndb.de>
Date: Sat, 1 Mar 2014 07:51:03 +0000 (+1300)
Subject: [SCSI] atari_scsi: Fix sleep_on race
X-Git-Tag: v3.15-rc1~166^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eff9cf8d6e8b048f2f744a1cc382e213a00f3d2c;p=pandora-kernel.git

[SCSI] atari_scsi: Fix sleep_on race

sleep_on is known broken and going away. The atari_scsi driver is one of
two remaining users in the falcon_get_lock() function, which is a rather
crazy piece of code. This does not attempt to fix the driver's locking
scheme in general, but at least prevents falcon_get_lock from going to
sleep when no other thread holds the same lock or tries to get it,
and we no longer schedule with irqs disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[MSch: fixed completion conditions missed in Arnds' original RFC patch]
Signed-off-by: Michael Schmitz <schmitz@debian.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: James E.J. Bottomley <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---

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