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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
arch RISC-V updates for v5.5-rc6 2020-01-12 16:48:39 -08:00
block
certs
crypto
Documentation xen-pciback: optionally allow interrupt enable flag writes 2020-01-15 16:50:13 -06:00
drivers xen/balloon: Support xend-based toolstack take two 2020-01-22 08:58:16 -06:00
fs Char/Misc patch for 5.5-rc6 2020-01-10 13:25:24 -08:00
include RISC-V updates for v5.5-rc6 2020-01-12 16:48:39 -08:00
init
ipc
kernel clone3-tls-v5.5-rc6 2020-01-11 15:33:48 -08:00
lib
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mm
net
samples
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sound sound fixes for 5.5-rc6 2020-01-10 11:52:36 -08:00
tools
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
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Makefile Linux 5.5-rc6 2020-01-12 16:55:08 -08:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.