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Filename Latest commit message Latest commit date
Joel Fernandes (Google) 30696378f6 pstore/ram: Do not treat empty buffers as valid
The ramoops backend currently calls persistent_ram_save_old() even
if a buffer is empty. While this appears to work, it is does not seem
like the right thing to do and could lead to future bugs so lets avoid
that. It also prevents misleading prints in the logs which claim the
buffer is valid.

I got something like:

	found existing buffer, size 0, start 0

When I was expecting:

	no valid data in buffer (sig = ...)

This bails out early (and reports with pr_debug()), since it's an
acceptable state.

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
2018-12-03 16:52:35 -08:00
arch Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-11 16:41:50 -06:00
block for-linus-20181109 2018-11-09 16:31:51 -06:00
certs
crypto
Documentation Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-11 16:41:50 -06:00
drivers pstore: Map PSTORE_TYPE_* to strings 2018-12-03 16:52:35 -08:00
firmware
fs pstore/ram: Do not treat empty buffers as valid 2018-12-03 16:52:35 -08:00
include pstore: Map PSTORE_TYPE_* to strings 2018-12-03 16:52:35 -08:00
init
ipc
kernel Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-11 16:37:41 -06:00
lib lib/raid6: Fix arm64 test build 2018-11-06 17:12:44 +00:00
LICENSES
mm memory_hotplug: cond_resched in __remove_pages 2018-11-03 10:09:38 -07:00
net act_mirred: clear skb->tstamp on redirect 2018-11-11 10:21:31 -08:00
samples VFIO updates for v4.20 2018-10-31 11:01:38 -07:00
scripts builddeb: Fix inclusion of dtbs in debian package 2018-11-11 23:04:53 +09:00
security + Features/Improvements 2018-11-02 10:04:26 -07:00
sound ALSA: hda - Fix incorrect clearance of thinkpad_acpi hooks 2018-11-06 16:33:53 +01:00
tools perf/urgent improvements and fixes: 2018-11-06 20:03:11 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: Update email for Punit Agrawal 2018-11-05 10:02:11 +00:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-11-10 06:57:34 -06:00
Makefile Linux 4.20-rc2 2018-11-11 17:12:31 -06:00
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.