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Filename Latest commit message Latest commit date
Juergen Gross a1078e821b xen: let alloc_xenballooned_pages() fail if not enough memory free
Instead of trying to allocate pages with GFP_USER in
add_ballooned_pages() check the available free memory via
si_mem_available(). GFP_USER is far less limiting memory exhaustion
than the test via si_mem_available().

This will avoid dom0 running out of memory due to excessive foreign
page mappings especially on ARM and on x86 in PVH mode, as those don't
have a pre-ballooned area which can be used for foreign mappings.

As the normal ballooning suffers from the same problem don't balloon
down more than si_mem_available() pages in one iteration. At the same
time limit the default maximum number of retries.

This is part of XSA-300.

Signed-off-by: Juergen Gross <jgross@suse.com>
2019-07-18 06:44:24 +02:00
arch xen/pv: Fix a boot up hang revealed by int3 self test 2019-07-17 08:09:59 +02:00
block
certs
crypto
Documentation xen: Map "xen_nopv" parameter to "nopv" and mark it obsolete 2019-07-17 08:09:58 +02:00
drivers xen: let alloc_xenballooned_pages() fail if not enough memory free 2019-07-18 06:44:24 +02:00
fs for-linus-20190715 2019-07-15 21:20:52 -07:00
include xen: remove tmem driver 2019-07-17 08:09:58 +02:00
init
ipc
kernel pci-v5.3-changes 2019-07-15 20:44:49 -07:00
lib 5.3 Merge window RDMA pull request 2019-07-15 20:38:15 -07:00
LICENSES
mm Revert "Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next" 2019-07-16 04:07:13 +10:00
net pci-v5.3-changes 2019-07-15 20:44:49 -07:00
samples
scripts stream_open related bits for Linux 5.3 2019-07-14 17:08:08 -07:00
security
sound
tools pci-v5.3-changes 2019-07-15 20:44:49 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
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MAINTAINERS for-linus-20190715 2019-07-15 21:20:52 -07:00
Makefile
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.