OpenCloudOS-Kernel/include
Vitaly Kuznetsov 2a18b7e7cd KVM: async_pf: Inject 'page ready' event only if 'page not present' was previously injected
'Page not present' event may or may not get injected depending on
guest's state. If the event wasn't injected, there is no need to
inject the corresponding 'page ready' event as the guest may get
confused. E.g. Linux thinks that the corresponding 'page not present'
event wasn't delivered *yet* and allocates a 'dummy entry' for it.
This entry is never freed.

Note, 'wakeup all' events have no corresponding 'page not present'
event and always get injected.

s390 seems to always be able to inject 'page not present', the
change is effectively a nop.

Suggested-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200610175532.779793-2-vkuznets@redhat.com>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=208081
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-11 12:35:19 -04:00
..
acpi Merge branches 'acpi-apei', 'acpi-pmic', 'acpi-video' and 'acpi-dptf' 2020-06-01 17:19:43 +02:00
asm-generic Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
clocksource
crypto crypto: lib/sha1 - fold linux/cryptohash.h into crypto/sha.h 2020-05-08 15:32:17 +10:00
drm drm pull for 5.8-rc1 2020-06-02 15:04:15 -07:00
dt-bindings
keys
kunit
kvm KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu 2020-05-28 11:57:10 +01:00
linux KVM: async_pf: Inject 'page ready' event only if 'page not present' was previously injected 2020-06-11 12:35:19 -04:00
math-emu
media media updates for v5.8-rc1 2020-06-03 20:59:38 -07:00
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
pcmcia
ras
rdma RDMA/core: Fix double destruction of uobject 2020-05-27 14:22:57 -03:00
scsi block: move dma_pad handling from blk_rq_map_sg into the callers 2020-04-22 10:47:39 -06:00
soc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-06 22:10:13 -07:00
sound ALSA: rawmidi: Fix racy buffer resize under concurrent accesses 2020-05-07 22:29:14 +02:00
target
trace Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
uapi media updates for v5.8-rc1 2020-06-03 20:59:38 -07:00
vdso
video
xen