From: Luca Barbieri <luca@luca-barbieri.com>
Date: Sat, 30 Jan 2010 22:21:38 +0000 (+0100)
Subject: drm/nouveau: call ttm_bo_wait with the bo lock held to prevent hang
X-Git-Tag: v2.6.33-rc8~14^2~2^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0fbe3eb5f65fe5948219f4ceac68f8a665b1fc6;p=pandora-kernel.git

drm/nouveau: call ttm_bo_wait with the bo lock held to prevent hang

nouveau_gem_ioctl_cpu_prep calls ttm_bo_wait without the bo lock held.
ttm_bo_wait unlocks that lock, and so must be called with it held.

Currently this bug causes libdrm nouveau_bo_busy() to hang the machine.

Signed-off-by: Luca Barbieri <luca at luca-barbieri.com>
Acked-by: Maarten Maathuis <madman2003@gmail.com>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---

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