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Maarten Lankhorst 0d6ad54b74 drm/core: Do not preserve framebuffer on rmfb, v4. 
commit f2d580b9a8 upstream.

It turns out that preserving framebuffers after the rmfb call breaks
vmwgfx userspace. This was originally introduced because it was thought
nobody relied on the behavior, but unfortunately it seems there are
exceptions.

drm_framebuffer_remove may fail with -EINTR now, so a straight revert
is impossible. There is no way to remove the framebuffer from the lists
and active planes without introducing a race because of the different
locking requirements. Instead call drm_framebuffer_remove from a
workqueue, which is unaffected by signals.

Changes since v1:
- Add comment.
Changes since v2:
- Add fastpath for refcount = 1. (danvet)
Changes since v3:
- Rebased.
- Restore lastclose framebuffer removal too.

Fixes: 1380313281 ("drm/core: Preserve the framebuffer after removing it.")
Testcase: kms_rmfb_basic
References: https://lists.freedesktop.org/archives/dri-devel/2016-March/102876.html
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Thomas Hellstrom <thellstrom@vmware.com> #v3
Tested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/6c63ca37-0e7e-ac7f-a6d2-c7822e3d611f@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-24 10:18:22 -07:00
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accessibility
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acpi
ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal strings
2016-06-01 12:15:50 -07:00
amba
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android
drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE
2016-03-03 15:07:10 -08:00
ata
ata: ahci-platform: Add ports-implemented DT bindings.
2016-05-11 11:21:21 +02:00
atm
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auxdisplay
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base
PM / sleep: Handle failures in device_suspend_late() consistently
2016-06-07 18:14:37 -07:00
bcma
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block
nbd: ratelimit error msgs after socket close
2016-05-11 11:21:10 +02:00
bluetooth
Bluetooth: vhci: Fix race at creating hci device
2016-06-01 12:15:50 -07:00
bus
bus: imx-weim: Take the 'status' property value into account
2016-05-04 14:48:54 -07:00
cdrom
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char
hwrng: exynos - Fix unbalanced PM runtime put on timeout error path
2016-06-07 18:14:33 -07:00
clk
clk: bcm2835: divider value has to be 1 or more
2016-06-07 18:14:35 -07:00
clocksource
clockevents/tcb_clksrc: Prevent disabling an already disabled clock
2016-03-03 15:07:15 -08:00
connector
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cpufreq
cpufreq: intel_pstate: Fix processing for turbo activation ratio
2016-05-04 14:48:44 -07:00
cpuidle
cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
2016-06-07 18:14:34 -07:00
crypto
crypto: qat - fix adf_ctl_drv.c:undefined reference to adf_init_pf_wq
2016-06-24 10:18:22 -07:00
dca
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devfreq
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dio
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dma
dmaengine: pxa_dma: fix the maximum requestor line
2016-05-04 14:48:42 -07:00
dma-buf
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edac
EDAC: i7core, sb_edac: Don't return NOTIFY_BAD from mce_decoder callback
2016-05-04 14:48:48 -07:00
eisa
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extcon
extcon: max77843: Use correct size for reading the interrupt register
2016-05-04 14:48:54 -07:00
firewire
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firmware
efi: Expose non-blocking set_variable() wrapper to efivars
2016-05-04 14:48:49 -07:00
fmc
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fpga
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gpio
gpio: bcm-kona: fix bcm_kona_gpio_reset() warnings
2016-06-24 10:18:19 -07:00
gpu
drm/core: Do not preserve framebuffer on rmfb, v4.
2016-06-24 10:18:22 -07:00
hid
HID: Fix boot delay for Creative SB Omni Surround 5.1 with quirk
2016-05-11 11:21:15 +02:00
hsi
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hv
Drivers: hv: vmbus: Fix a Host signaling bug
2016-03-03 15:07:16 -08:00
hwmon
hwmon: (ads7828) Enable internal reference
2016-06-07 18:14:34 -07:00
hwspinlock
drivers/hwspinlock: fix race between radix tree insertion and lookup
2016-02-25 12:01:23 -08:00
hwtracing
stm class: Select CONFIG_SRCU
2016-05-04 14:48:54 -07:00
i2c
i2c: exynos5: Fix possible ABBA deadlock by keeping I2C clock prepared
2016-05-04 14:48:47 -07:00
ide
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idle
intel_idle: prevent SKL-H boot failure when C8+C9+C10 enabled
2016-04-12 09:09:05 -07:00
iio
iio: ak8975: fix maybe-uninitialized warning
2016-05-11 11:21:23 +02:00
infiniband
IB/srp: Fix a debug kernel crash
2016-06-01 12:15:53 -07:00
input
Input: uinput - handle compat ioctl for UI_SET_PHYS
2016-06-07 18:14:32 -07:00
iommu
iommu/dma: Restore scatterlist offsets correctly
2016-05-04 14:48:45 -07:00
ipack
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irqchip
irqchip/gic-v3: Configure all interrupts as non-secure Group-1
2016-06-01 12:15:49 -07:00
isdn
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leds
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lguest
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lightnvm
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macintosh
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mailbox
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mcb
mcb: Fixed bar number assignment for the gdd
2016-06-01 12:15:53 -07:00
md
MD: make bio mergeable
2016-05-11 11:21:13 +02:00
media
media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32
2016-06-07 18:14:35 -07:00
memory
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memstick
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message
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mfd
mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table correctly
2016-06-07 18:14:34 -07:00
misc
mei: bus: call mei_cl_read_start under device lock
2016-06-01 12:15:50 -07:00
mmc
mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
2016-06-01 12:15:50 -07:00
mtd
UBI: Fix static volume checks when Fastmap is used
2016-06-01 12:15:54 -07:00
net
vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices
2016-06-24 10:18:18 -07:00
nfc
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ntb
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nubus
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nvdimm
libnvdimm, pfn: fix uuid validation
2016-04-20 15:41:54 +09:00
nvme
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nvmem
nvmem: mxs-ocotp: fix buffer overflow in read
2016-05-11 11:21:21 +02:00
of
of: alloc anywhere from memblock if range not specified
2016-04-12 09:08:55 -07:00
oprofile
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parisc
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parport
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pci
PCI: Disable all BAR sizing for devices with non-compliant BARs
2016-06-07 18:14:35 -07:00
pcmcia
pcmcia: db1xxx_ss: fix last irq_to_gpio user
2016-04-20 15:42:09 +09:00
perf
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phy
phy: core: fix wrong err handle for phy_power_on
2016-03-03 15:07:28 -08:00
pinctrl
pinctrl: mediatek: fix dual-edge code defect
2016-06-24 10:18:20 -07:00
platform
dell-rbtn: Ignore ACPI notifications if device is suspended
2016-06-01 12:15:50 -07:00
pnp
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power
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powercap
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pps
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ps3
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ptp
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pwm
pwm: brcmstb: Fix check of devm_ioremap_resource() return code
2016-05-04 14:48:47 -07:00
rapidio
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ras
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regulator
regulator: axp20x: Fix axp22x ldo_io voltage ranges
2016-05-18 17:06:51 -07:00
remoteproc
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reset
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rpmsg
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rtc
rtc: max77686: Properly handle regmap_irq_get_virq() error code
2016-05-04 14:48:52 -07:00
s390
s390/dasd: fix diag 0x250 inline assembly
2016-03-16 08:42:58 -07:00
sbus
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scsi
scsi: Add QEMU CD-ROM to VPD Inquiry Blacklist
2016-06-24 10:18:16 -07:00
sfi
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sh
drivers: sh: Restore legacy clock domain on SuperH platforms
2016-03-09 15:34:49 -08:00
sn
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soc
soc: rockchip: power-domain: fix err handle while probing
2016-05-11 11:21:11 +02:00
spi
spi: spi-ti-qspi: Handle truncated frames properly
2016-05-18 17:06:47 -07:00
spmi
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ssb
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staging
staging: comedi: das1800: fix possible NULL dereference
2016-06-01 12:15:52 -07:00
target
target: Fix target_release_cmd_kref shutdown comp leak
2016-04-12 09:09:02 -07:00
tc
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thermal
thermal: rockchip: fix a impossible condition caused by the warning
2016-05-04 14:48:54 -07:00
thunderbolt
thunderbolt: Fix double free of drom buffer
2016-06-01 12:15:53 -07:00
tty
QE-UART: add "fsl,t1040-ucc-uart" to of_device_id
2016-06-07 18:14:35 -07:00
uio
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usb
usb: gadget: udc: core: Fix argument of dev_err() in usb_gadget_map_request()
2016-06-01 12:15:52 -07:00
uwb
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vfio
vfio: fix ioctl error handling
2016-03-09 15:34:50 -08:00
vhost
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video
fbdev: da8xx-fb: fix videomodes of lcd panels
2016-05-04 14:48:51 -07:00
virt
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virtio
virtio: virtio 1.0 cs04 spec compliance for reset
2016-04-20 15:42:10 +09:00
vlynq
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vme
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w1
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watchdog
watchdog: rc32434_wdt: fix ioctl error handling
2016-04-12 09:08:54 -07:00
xen
xen/events: Don't move disabled irqs
2016-06-07 18:14:36 -07:00
zorro
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Kconfig
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Makefile
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