linux-bl808/drivers/xen
Juergen Gross eda4eabf86 xen/balloon: Support xend-based toolstack take two
Commit 3aa6c19d2f ("xen/balloon: Support xend-based toolstack")
tried to fix a regression with running on rather ancient Xen versions.
Unfortunately the fix was based on the assumption that xend would
just use another Xenstore node, but in reality only some downstream
versions of xend are doing that. The upstream xend does not write
that Xenstore node at all, so the problem must be fixed in another
way.

The easiest way to achieve that is to fall back to the behavior
before commit 96edd61dcf ("xen/balloon: don't online new memory
initially") in case the static memory maximum can't be read.

This is achieved by setting static_max to the current number of
memory pages known by the system resulting in target_diff becoming
zero.

Fixes: 3aa6c19d2f ("xen/balloon: Support xend-based toolstack")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: <stable@vger.kernel.org> # 4.13
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2020-01-22 08:58:16 -06:00
..
events xen/events: remove event handling recursion detection 2019-12-02 07:04:30 +01:00
xen-pciback xen-pciback: optionally allow interrupt enable flag writes 2020-01-15 16:50:13 -06:00
xenbus xenbus: limit when state is forced to closed 2019-12-20 13:44:38 +01:00
xenfs
acpi.c
arm-device.c
balloon.c xen: branch for v5.5-rc2 2019-12-15 12:24:44 -08:00
biomerge.c
cpu_hotplug.c
dbgp.c
efi.c
evtchn.c
features.c
gntalloc.c
gntdev-common.h xen/gntdev: replace global limit of mapped pages by limit per call 2019-12-02 07:39:18 +01:00
gntdev-dmabuf.c xen/gntdev: replace global limit of mapped pages by limit per call 2019-12-02 07:39:18 +01:00
gntdev-dmabuf.h
gntdev.c xen/gntdev: switch from kcalloc() to kvcalloc() 2019-12-02 07:39:23 +01:00
grant-table.c xen/grant-table: remove multiple BUG_ON on gnttab_interface 2019-12-20 13:54:56 +01:00
Kconfig
Makefile
manage.c
mcelog.c
mem-reservation.c
pci.c
pcpu.c
platform-pci.c
preempt.c
privcmd-buf.c
privcmd.c
privcmd.h
pvcalls-back.c
pvcalls-front.c
pvcalls-front.h
swiotlb-xen.c
sys-hypervisor.c
time.c
xen-acpi-cpuhotplug.c
xen-acpi-memhotplug.c
xen-acpi-pad.c
xen-acpi-processor.c
xen-balloon.c xen/balloon: Support xend-based toolstack take two 2020-01-22 08:58:16 -06:00
xen-front-pgdir-shbuf.c
xen-scsiback.c
xen-stub.c
xlate_mmu.c