Jeremy Cline 7d0ed747bc drm/qxl: Call qxl_bo_unref outside atomic context ...

commit 889ad63d41 upstream.

"qxl_bo_unref" may sleep, but calling "qxl_release_map" causes
"preempt_disable()" to be called and "preempt_enable()" isn't called
until "qxl_release_unmap" is used. Move the call to "qxl_bo_unref" out
from in between the two to avoid sleeping from an atomic context.

This issue can be demonstrated on a kernel with CONFIG_LOCKDEP=y by
creating a VM using QXL, using a desktop environment using Xorg, then
moving the cursor on or off a window.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1571128
Fixes: 9428088c90 ("drm/qxl: reapply cursor after resetting primary")
Cc: stable@vger.kernel.org
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180601200532.13619-1-jcline@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-07-08 15:30:48 +02:00

..

Kconfig

drm: fix compilations issues introduced by "drm: allow to use mmuless SoC"

2017-01-09 11:30:30 +01:00

Makefile

drm/qxl: fix include notation and remove -Iinclude/drm flag

2017-05-17 14:36:17 +02:00

qxl_cmd.c

qxl: alloc & use shadow for dumb buffers

2018-02-22 15:42:29 +01:00

qxl_debugfs.c

drm/qxl: fix include notation and remove -Iinclude/drm flag

2017-05-17 14:36:17 +02:00

qxl_dev.h

…

qxl_display.c

drm/qxl: Call qxl_bo_unref outside atomic context

2018-07-08 15:30:48 +02:00

qxl_draw.c

drm: Nuke fb->bits_per_pixel

2016-12-15 14:55:34 +02:00

qxl_drv.c

drm/qxl: Use the drm_driver.dumb_destroy default

2017-08-16 20:15:38 +02:00

qxl_drv.h

drm/qxl: reapply cursor after resetting primary

2018-02-22 15:42:29 +01:00

qxl_dumb.c

qxl: alloc & use shadow for dumb buffers

2018-02-22 15:42:29 +01:00

qxl_fb.c

drm/<drivers>: Drop fbdev info flags

2017-07-26 13:22:40 +02:00

qxl_gem.c

drm/qxl: fix include notation and remove -Iinclude/drm flag

2017-05-17 14:36:17 +02:00

qxl_image.c

qxl: convert qxl driver to proper use for reservations

2013-07-24 11:58:10 +10:00

qxl_ioctl.c

drm/qxl: fix __user annotations

2017-06-23 10:06:31 +02:00

qxl_irq.c

drm: qxl: Embed drm_device into driver structure

2017-02-02 10:02:37 +01:00

qxl_kms.c

drm/qxl: Remove qxl_debugfs_remove_files()

2017-03-09 09:01:00 +01:00

qxl_object.c

drm/qxl: declare a bunch of functions as static

2017-06-23 10:06:38 +02:00

qxl_object.h

drm: qxl: Drop duplicated device pointer attribute

2017-02-02 10:02:34 +01:00

qxl_prime.c

drm/qxl: fix erroneous return value

2016-02-17 15:39:35 +10:00

qxl_release.c

drm/qxl: fix use of uninitialized variable

2016-12-05 13:14:13 -05:00

qxl_ttm.c

drm: qxl: constify ttm_place structures.

2017-07-03 10:31:14 +02:00