This further unifies the accessors for the fast and coarse functions, so
that the same types of functions are available for each. There was also
a bit of confusion with the documentation, which prior advertised a
function that has never existed. Finally, the vanilla ktime_get_coarse()
was omitted from the API originally, so this fills this oversight.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/20190621203249.3909-3-Jason@zx2c4.com
This makes boot uniformly boottime and tai uniformly clocktai, to
address the remaining oversights.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/20190621203249.3909-2-Jason@zx2c4.com
Explain how the GS/FS based addressing can be utilized in user space
applications along with the differences between the generic prctl() based
GS/FS base control and the FSGSBASE version available on newer CPUs.
Originally-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Bae, Chang Seok" <chang.seok.bae@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>,
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: "Shankar, Ravi V" <ravi.v.shankar@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1906132246310.1791@nanos.tec.linutronix.de
Now that FSGSBASE is fully supported, remove unsafe_fsgsbase, enable
FSGSBASE by default, and add nofsgsbase to disable it.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://lkml.kernel.org/r/1557309753-24073-17-git-send-email-chang.seok.bae@intel.com
On a FSGSBASE system, the way to handle GSBASE in the paranoid path is
different from the existing SWAPGS-based entry/exit path handling. Document
the reason and what has to be done for FSGSBASE enabled systems.
[ tglx: Massaged doc and changelog ]
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://lkml.kernel.org/r/1557309753-24073-14-git-send-email-chang.seok.bae@intel.com
It helps to use some new instructions directly in assembly code.
Suggested-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: Linux Torvalds <torvalds@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://lkml.kernel.org/r/1557309753-24073-5-git-send-email-chang.seok.bae@intel.com
This is temporary. It will allow the next few patches to be tested
incrementally.
Setting unsafe_fsgsbase is a root hole. Don't do it.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://lkml.kernel.org/r/1557309753-24073-4-git-send-email-chang.seok.bae@intel.com
As per the i.MX7D Reference Manual only the MCLK is used for
the CSI block, so only document this single clock.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Create vimc documentation file to explain its basic features, its
topology, how to configure it and to document vimc's subdevices.
Signed-off-by: André Almeida <andrealmeid@collabora.com>
Suggested-by: Helen Koike <helen.koike@collabora.com>
[hverkuil-cisco@xs4all.nl: Fix typo: The ``v4l2-utils`` -> The ``v4l-utils`` package]
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This sentence renders as:
> Since such compound controls need to expose more information about
> themselves than is possible with ioctls VIDIOC_QUERYCTRL,
> VIDIOC_QUERY_EXT_CTRL and VIDIOC_QUERYMENU the VIDIOC_QUERY_EXT_CTRL
^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^
> ioctl was added.
This does not make sense. Fix by providing an explicit link text. This
results in:
> Since such compound controls need to expose more information about
> themselves than is possible with VIDIOC_QUERYCTRL the
> VIDIOC_QUERY_EXT_CTRL ioctl was added.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This paragraph was added by commit a42b57f5aa ("V4L/DVB: Documentation:
add v4l2-controls.txt documenting the new controls API") back in 2010, when
the controls API has been improved. Nowadays it is a bit anachronistic, so
remove it.
The same information is stated in up-to-date wording a few paragraphs later
> You’re done! And this is sufficient for most of the drivers we have. No
> need to do any validation of control values, or implement QUERYCTRL,
> QUERY_EXT_CTRL and QUERYMENU. And G/S_CTRL as well as G/TRY/S_EXT_CTRLS
> are automatically supported.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The tutorial in this section is almost complete, add the one missing bit.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
All these code blocks contain C code, enable C formatting for a nicer
reading.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This section lacks links to functions. Add one to simplify reading.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The code snippet showing how to add controls to the driver’s top-level
struct is present twice, but only the second time it is split in the V4L2
and subdev cases. Consolidate everything at the beginning.
Also remove the "Where foo->bar is of type struct baz" sentences, this
obvious from the code.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This section lacks links to struct definitions. Add one where each struct
is introduced.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Fix indentation in example C code.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Mentioning :ref:`VIDIOC_QUERYCTRL` renders all the three related ioctls.
Explicitly adding VIDIOC_QUERY_EXT_CTRL and VIDIOC_QUERYMENU will make
them render twice, so remove them
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
When the application calls VIDIOC_DQBUF with the DMABUF memory type, the
v4l2_buffer structure (or v4l2_plane structures) are filled with DMA-buf
file descriptors. However, the current documentation does not explain
whether those are new file descriptors referring to the same DMA-bufs or
just the same integers as passed to VIDIOC_QBUF back in time. Clarify
the documentation that it's the latter.
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
-----BEGIN PGP SIGNATURE-----
iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl0Gj1MeHHRvcnZhbGRz
QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGctkH/0At3+SQPY2JJSy8
i6+TDeytFx9OggeGLPHChRfehkAlvMb/kd34QHnuEvDqUuCAMU6HZQJFKoK9mvFI
sDJVayPGDSqpm+iv8qLpMBPShiCXYVnGZeVfOdv36jUswL0k6wHV1pz4avFkDeZa
1F4pmI6O2XRkNTYQawbUaFkAngWUCBG9ECLnHJnuIY6ohShBvjI4+E2JUaht+8gO
M2h2b9ieddWmjxV3LTKgsK1v+347RljxdZTWnJ62SCDSEVZvsgSA9W2wnebVhBkJ
drSmrFLxNiM+W45mkbUFmQixRSmjv++oRR096fxAnodBxMw0TDxE1RiMQWE6rVvG
N6MC6xA=
=+B0P
-----END PGP SIGNATURE-----
Merge tag 'v5.2-rc5' into patchwork
Linux 5.2-rc5
There are some media fixes on -rc5, so merge from it at media
devel tree.
* tag 'v5.2-rc5': (210 commits)
Linux 5.2-rc5
x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback
Smack: Restore the smackfsdef mount option and add missing prefixes
ftrace: Fix NULL pointer dereference in free_ftrace_func_mapper()
module: Fix livepatch/ftrace module text permissions race
tracing/uprobe: Fix obsolete comment on trace_uprobe_create()
tracing/uprobe: Fix NULL pointer dereference in trace_uprobe_create()
tracing: Make two symbols static
tracing: avoid build warning with HAVE_NOP_MCOUNT
tracing: Fix out-of-range read in trace_stack_print()
gfs2: Fix rounding error in gfs2_iomap_page_prepare
x86/kasan: Fix boot with 5-level paging and KASAN
timekeeping: Repair ktime_get_coarse*() granularity
Revert "ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops"
mm/devm_memremap_pages: fix final page put race
PCI/P2PDMA: track pgmap references per resource, not globally
lib/genalloc: introduce chunk owners
PCI/P2PDMA: fix the gen_pool_add_virt() failure path
mm/devm_memremap_pages: introduce devm_memunmap_pages
drivers/base/devres: introduce devm_release_action()
...
Here are a number of small driver fixes for 5.2-rc6
Nothing major, just fixes for reported issues:
- soundwire fixes
- thunderbolt fixes
- MAINTAINERS update for fpga maintainer change
- binder bugfix
- habanalabs 64bit pointer fix
- documentation updates
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXQyOkg8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+yljIgCfbK0RWqIOa4esqlpUi2+71yM89M8AmQFLdOck
gYJS7F+8cXeGEsveqAn2
=4ujv
-----END PGP SIGNATURE-----
Merge tag 'char-misc-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a number of small driver fixes for 5.2-rc6
Nothing major, just fixes for reported issues:
- soundwire fixes
- thunderbolt fixes
- MAINTAINERS update for fpga maintainer change
- binder bugfix
- habanalabs 64bit pointer fix
- documentation updates
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
habanalabs: use u64_to_user_ptr() for reading user pointers
doc: fix documentation about UIO_MEM_LOGICAL using
MAINTAINERS / Documentation: Thorsten Scherer is the successor of Gavin Schenk
docs: fb: Add TER16x32 to the available font names
MAINTAINERS: fpga: hand off maintainership to Moritz
thunderbolt: Implement CIO reset correctly for Titan Ridge
binder: fix possible UAF when freeing buffer
thunderbolt: Make sure device runtime resume completes before taking domain lock
soundwire: intel: set dai min and max channels correctly
soundwire: stream: fix bad unlock balance
soundwire: stream: fix out of boundary access on port properties
This adds an example of how to inject errors into admin commands.
Suggested-by: Thomas Tai <thomas.tai@oracle.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Minwoo Im <minwoo.im@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
for nested state save/restore.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJdC7NHAAoJEL/70l94x66DHm0H/R8L80sWe1OJbHHK8caPpwm2
mPt6JNcG/ysbG/uoMuVsdRAjZsg9l8JZB9xfA2m/ZPQQThjSG/WX0rU+gWMMI3X8
8ZbN4BCFoiNpOzOkhmStwzMWnvovKvMfhFW0BAI3HLUfM9A+XyVvNM/JbLOvEMRk
WB2SxYRc38ZvIbi8eXgsoFrVyLFB2Fj/0jps4FbKnkjkl37PTDehYLWQ1pt9KsWS
2KdGoXm7/18ottqf0DPfLe0hiiiDuK3akKz7WQBMsAJHi4Fm5j39NuseeRdlablk
uE4vM/sVaLn4xwM9JfrsBl9TzZ2qHsOTRlMQG4iNWjEAuPKa45lt0Jo7OBs6DSY=
=Lzxe
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Fixes for ARM and x86, plus selftest patches and nicer structs for
nested state save/restore"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: reorganize initial steps of vmx_set_nested_state
KVM: arm/arm64: Fix emulated ptimer irq injection
tests: kvm: Check for a kernel warning
kvm: tests: Sort tests in the Makefile alphabetically
KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT
KVM: x86: Modify struct kvm_nested_state to have explicit fields for data
KVM: fix typo in documentation
KVM: nVMX: use correct clean fields when copying from eVMCS
KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy
KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST
KVM: arm64: Implement vq_present() as a macro
"git diff" says:
\ No newline at end of file
after modifying the file.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
"If the MBA is specified in MB then user can enter the max b/w in MB"
is a tautology. How can the user know if the schemata takes a percentage
or a MB/s value?
This is referring to whether the software controller is interpreting
the schemata's value. Make this clear.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
"L2 cache does not support code and data prioritization". This isn't
true, elsewhere the document says it can be enabled with the cdpl2
mount option.
While we're here, these sample strings have lower-case code/data,
which isn't how the kernel exports them.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Since commit 4d05bf71f1 ("x86/resctrl: Introduce AMD QOS feature")
resctrl has supported non-contiguous cache bit masks. The interface
for this is currently try-it-and-see.
Update the documentation to say Intel CPUs have this requirement,
instead of X86.
Cc: Babu Moger <Babu.Moger@amd.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The asterisks prepended to the quoted text currently get translated to
bullet points, which gets increasingly confusing the smaller your
screen is (when viewing the sphinx output, that is).
Convert the whole quote to a literal block.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Since strlcpy is deprecated, the documentation shouldn't suggest using
it. This patch fixes the examples to use strscpy instead. It also uses
sizeof instead of underlying constants as far as possible, to simplify
future changes to the corresponding data structures.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Sphinx expects a blank line after a literal block markup.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The new font is available since recently.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This option is entirely bfq specific, give it an appropinquate name.
Also make it depend on CONFIG_BFQ_GROUP_IOSCHED in Kconfig, as all
the functionality already does so anyway.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We only need the number of segments in the blk-mq submission path.
Remove the field from struct bio, and return it from a variant of
blk_queue_split instead of that it can passed as an argument to
those functions that need the value.
This also means we stop recounting segments except for cloning
and partial segments.
To keep the number of arguments in this how path down remove
pointless struct request_queue arguments from any of the functions
that had it and grew a nr_segs argument.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The Cirrus Logic Madera codecs are a family of related codecs with
extensive digital and analogue I/O, digital mixing and routing,
signal processing and programmable DSPs.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
BCM7211 features a RNG200 block, document its compatible string.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Admins may wish to log different measurements using different IMA
templates. Add support for overriding the default template on a per-rule
basis.
Inspired-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Matthew Garrett <mjg59@google.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Due to new challenges in my life I can no longer take care of SIOX.
Thorsten takes over my SIOX tasks.
Signed-off-by: Gavin Schenk <g.schenk@eckelmann.de>
Acked-by: Thorsten Scherer <t.scherer@eckelmann.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The new font is available since recently.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The description of smp_mb__before_atomic() and smp_mb__after_atomic()
in Documentation/atomic_t.txt is slightly terse and misleading. It
does not clearly state which other instructions are ordered by these
barriers.
This improves the text to make the actual ordering implications clear,
and also to explain how these barriers differ from a RELEASE or
ACQUIRE ordering.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
This feature has never been used, so remove it.
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
If a filesystem uses keys to hold authentication tokens, then it needs a
token for each VFS operation that might perform an authentication check -
either by passing it to the server, or using to perform a check based on
authentication data cached locally.
For open files this isn't a problem, since the key should be cached in the
file struct since it represents the subject performing operations on that
file descriptor.
During pathwalk, however, there isn't anywhere to cache the key, except
perhaps in the nameidata struct - but that isn't exposed to the
filesystems. Further, a pathwalk can incur a lot of operations, calling
one or more of the following, for instance:
->lookup()
->permission()
->d_revalidate()
->d_automount()
->get_acl()
->getxattr()
on each dentry/inode it encounters - and each one may need to call
request_key(). And then, at the end of pathwalk, it will call the actual
operation:
->mkdir()
->mknod()
->getattr()
->open()
...
which may need to go and get the token again.
However, it is very likely that all of the operations on a single
dentry/inode - and quite possibly a sequence of them - will all want to use
the same authentication token, which suggests that caching it would be a
good idea.
To this end:
(1) Make it so that a positive result of request_key() and co. that didn't
require upcalling to userspace is cached temporarily in task_struct.
(2) The cache is 1 deep, so a new result displaces the old one.
(3) The key is released by exit and by notify-resume.
(4) The cache is cleared in a newly forked process.
Signed-off-by: David Howells <dhowells@redhat.com>
Provide a request_key_rcu() function that can be used to request a key
under RCU conditions. It can only search and check permissions; it cannot
allocate a new key, upcall or wait for an upcall to complete. It may
return a partially constructed key.
Signed-off-by: David Howells <dhowells@redhat.com>
Move the RCU locks outwards from the keyring search functions so that it
will become possible to provide an RCU-capable partial request_key()
function in a later commit.
Signed-off-by: David Howells <dhowells@redhat.com>
The request_key() syscall allows a process to gain access to the 'possessor'
permits of any key that grants it Search permission by virtue of request_key()
not checking whether a key it finds grants Link permission to the caller.
Signed-off-by: David Howells <dhowells@redhat.com>
Improve the KVM_{GET,SET}_NESTED_STATE structs by detailing the format
of VMX nested state data in a struct.
In order to avoid changing the ioctl values of
KVM_{GET,SET}_NESTED_STATE, there is a need to preserve
sizeof(struct kvm_nested_state). This is done by defining the data
struct as "data.vmx[0]". It was the most elegant way I found to
preserve struct size while still keeping struct readable and easy to
maintain. It does have a misfortunate side-effect that now it has to be
accessed as "data.vmx[0]" rather than just "data.vmx".
Because we are already modifying these structs, I also modified the
following:
* Define the "format" field values as macros.
* Rename vmcs_pa to vmcs12_pa for better readability.
Signed-off-by: Liran Alon <liran.alon@oracle.com>
[Remove SVM stubs, add KVM_STATE_NESTED_VMX_VMCS12_SIZE. - Paolo]
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add the compatibility string documentation for SiFive FU540-C0000
interface.
On the FU540, this driver also needs to read and write registers in a
management IP block that monitors or drives boundary signals for the
GEMGXL IP block that are not directly mapped to GEMGXL registers.
Therefore, add additional range to "reg" property for SiFive GEMGXL
management IP registers.
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The PMS405 supports 5 SMPS and 13 LDO regulators.
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Document the dt bindings for the PM8005 regulators which are usually used
for VDD of standalone blocks on a SoC like the GPU.
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The documentation mentions a non-existing capability KVM_CAP_USER_MEM.s
The right name is KVM_CAP_USER_MEMORY.
Signed-off-by: Dennis Restle <derestle@htwg-konstanz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Every merge window seems to involve at least one episode where subsystem
maintainers don't manage their trees as Linus would like. Document the
expectations so that at least he has something to point people to.
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Pull networking fixes from David Miller:
"Lots of bug fixes here:
1) Out of bounds access in __bpf_skc_lookup, from Lorenz Bauer.
2) Fix rate reporting in cfg80211_calculate_bitrate_he(), from John
Crispin.
3) Use after free in psock backlog workqueue, from John Fastabend.
4) Fix source port matching in fdb peer flow rule of mlx5, from Raed
Salem.
5) Use atomic_inc_not_zero() in fl6_sock_lookup(), from Eric Dumazet.
6) Network header needs to be set for packet redirect in nfp, from
John Hurley.
7) Fix udp zerocopy refcnt, from Willem de Bruijn.
8) Don't assume linear buffers in vxlan and geneve error handlers,
from Stefano Brivio.
9) Fix TOS matching in mlxsw, from Jiri Pirko.
10) More SCTP cookie memory leak fixes, from Neil Horman.
11) Fix VLAN filtering in rtl8366, from Linus Walluij.
12) Various TCP SACK payload size and fragmentation memory limit fixes
from Eric Dumazet.
13) Use after free in pneigh_get_next(), also from Eric Dumazet.
14) LAPB control block leak fix from Jeremy Sowden"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (145 commits)
lapb: fixed leak of control-blocks.
tipc: purge deferredq list for each grp member in tipc_group_delete
ax25: fix inconsistent lock state in ax25_destroy_timer
neigh: fix use-after-free read in pneigh_get_next
tcp: fix compile error if !CONFIG_SYSCTL
hv_sock: Suppress bogus "may be used uninitialized" warnings
be2net: Fix number of Rx queues used for flow hashing
net: handle 802.1P vlan 0 packets properly
tcp: enforce tcp_min_snd_mss in tcp_mtu_probing()
tcp: add tcp_min_snd_mss sysctl
tcp: tcp_fragment() should apply sane memory limits
tcp: limit payload size of sacked skbs
Revert "net: phylink: set the autoneg state in phylink_phy_change"
bpf: fix nested bpf tracepoints with per-cpu data
bpf: Fix out of bounds memory access in bpf_sk_storage
vsock/virtio: set SOCK_DONE on peer shutdown
net: dsa: rtl8366: Fix up VLAN filtering
net: phylink: set the autoneg state in phylink_phy_change
net: add high_order_alloc_disable sysctl/static key
tcp: add tcp_tx_skb_cache sysctl
...
This tag contains fixes, defconfig, and DT data changes for the v5.2-rc
series. The fixes are relatively straightforward:
- Addition of a TLB fence in the vmalloc_fault path, so the CPU doesn't
enter an infinite page fault loop;
- Readdition of the pm_power_off export, so device drivers that
reassign it can now be built as modules;
- A udelay() fix for RV32, fixing a miscomputation of the delay time;
- Removal of deprecated smp_mb__*() barriers.
The tag also adds initial DT data infrastructure for arch/riscv, along
with initial data for the SiFive FU540-C000 SoC and the corresponding
HiFive Unleashed board.
We also update the RV64 defconfig to include some core drivers for the
FU540 in the build.
-----BEGIN PGP SIGNATURE-----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=aotJ
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-v5.2/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"This contains fixes, defconfig, and DT data changes for the v5.2-rc
series.
The fixes are relatively straightforward:
- Addition of a TLB fence in the vmalloc_fault path, so the CPU
doesn't enter an infinite page fault loop
- Readdition of the pm_power_off export, so device drivers that
reassign it can now be built as modules
- A udelay() fix for RV32, fixing a miscomputation of the delay time
- Removal of deprecated smp_mb__*() barriers
This also adds initial DT data infrastructure for arch/riscv, along
with initial data for the SiFive FU540-C000 SoC and the corresponding
HiFive Unleashed board.
We also update the RV64 defconfig to include some core drivers for the
FU540 in the build"
* tag 'riscv-for-v5.2/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: remove unused barrier defines
riscv: mm: synchronize MMU after pte change
riscv: dts: add initial board data for the SiFive HiFive Unleashed
riscv: dts: add initial support for the SiFive FU540-C000 SoC
dt-bindings: riscv: convert cpu binding to json-schema
dt-bindings: riscv: sifive: add YAML documentation for the SiFive FU540
arch: riscv: add support for building DTB files from DT source data
riscv: Fix udelay in RV32.
riscv: export pm_power_off again
RISC-V: defconfig: enable clocks, serial console
runnable_avg_yN_inv[] is only used in kernel/sched/pelt.c but was
included in several other places because they need other macros all
came from kernel/sched/sched-pelt.h which was generated by
Documentation/scheduler/sched-pelt. As the result, it causes compilation
a lot of warnings,
kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
kernel/sched/sched-pelt.h:4:18: warning: 'runnable_avg_yN_inv' defined but not used [-Wunused-const-variable=]
...
Silence it by appending the __maybe_unused attribute for it, so all
generated variables and macros can still be kept in the same file.
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1559596304-31581-1-git-send-email-cai@lca.pw
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Recent probing at the Linux Kernel Memory Model uncovered a
'surprise'. Strongly ordered architectures where the atomic RmW
primitive implies full memory ordering and
smp_mb__{before,after}_atomic() are a simple barrier() (such as x86)
fail for:
*x = 1;
atomic_inc(u);
smp_mb__after_atomic();
r0 = *y;
Because, while the atomic_inc() implies memory order, it
(surprisingly) does not provide a compiler barrier. This then allows
the compiler to re-order like so:
atomic_inc(u);
*x = 1;
smp_mb__after_atomic();
r0 = *y;
Which the CPU is then allowed to re-order (under TSO rules) like:
atomic_inc(u);
r0 = *y;
*x = 1;
And this very much was not intended. Therefore strengthen the atomic
RmW ops to include a compiler barrier.
NOTE: atomic_{or,and,xor} and the bitops already had the compiler
barrier.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
At Rob's request, we're starting to migrate our DT binding
documentation to json-schema YAML format. Start by converting our cpu
binding documentation. While doing so, document more properties and
nodes. This includes adding binding documentation support for the E51
and U54 CPU cores ("harts") that are present on this SoC. These cores
are described in:
https://static.dev.sifive.com/FU540-C000-v1.0.pdf
This cpus.yaml file is intended to be a starting point and to
evolve over time. It passes dt-doc-validate as of the yaml-bindings
commit 4c79d42e9216.
This patch was originally based on the ARM json-schema binding
documentation as added by commit 672951cbd1 ("dt-bindings: arm: Convert
cpu binding to json-schema").
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Add YAML DT binding documentation for the SiFive FU540 SoC. This
SoC is documented at:
https://static.dev.sifive.com/FU540-C000-v1.0.pdf
Passes dt-doc-validate, as of yaml-bindings commit 4c79d42e9216.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: devicetree@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Some TCP peers announce a very small MSS option in their SYN and/or
SYN/ACK messages.
This forces the stack to send packets with a very high network/cpu
overhead.
Linux has enforced a minimal value of 48. Since this value includes
the size of TCP options, and that the options can consume up to 40
bytes, this means that each segment can include only 8 bytes of payload.
In some cases, it can be useful to increase the minimal value
to a saner value.
We still let the default to 48 (TCP_MIN_SND_MSS), for compatibility
reasons.
Note that TCP_MAXSEG socket option enforces a minimal value
of (TCP_MIN_MSS). David Miller increased this minimal value
in commit c39508d6f1 ("tcp: Make TCP_MAXSEG minimum more correct.")
from 64 to 88.
We might in the future merge TCP_MIN_SND_MSS and TCP_MIN_MSS.
CVE-2019-11479 -- tcp mss hardcoded to 48
Signed-off-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Jonathan Looney <jtl@netflix.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Bruce Curtis <brucec@netflix.com>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull cgroup fixes from Tejun Heo:
"This has an unusually high density of tricky fixes:
- task_get_css() could deadlock when it races against a dying cgroup.
- cgroup.procs didn't list thread group leaders with live threads.
This could mislead readers to think that a cgroup is empty when
it's not. Fixed by making PROCS iterator include dead tasks. I made
a couple mistakes making this change and this pull request contains
a couple follow-up patches.
- When cpusets run out of online cpus, it updates cpusmasks of member
tasks in bizarre ways. Joel improved the behavior significantly"
* 'for-5.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: restore sanity to cpuset_cpus_allowed_fallback()
cgroup: Fix css_task_iter_advance_css_set() cset skip condition
cgroup: css_task_iter_skip()'d iterators must be advanced before accessed
cgroup: Include dying leaders with live threads in PROCS iterations
cgroup: Implement css_task_iter_skip()
cgroup: Call cgroup_release() before __exit_signal()
docs cgroups: add another example size for hugetlb
cgroup: Use css_tryget() instead of css_tryget_online() in task_get_css()
Instead of relying on rps_needed, it is safer to use a separate
static key, since we do not want to enable TCP rx_skb_cache
by default. This feature can cause huge increase of memory
usage on hosts with millions of sockets.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mlx5 devlink health fw reporters and sw reset support
This series provides mlx5 firmware reset support and firmware devlink health
reporters.
1) Add initial mlx5 kernel documentation and include devlink health reporters
2) Add CR-Space access and FW Crdump snapshot support via devlink region_snapshot
3) Issue software reset upon FW asserts
4) Add fw and fw_fatal devlink heath reporters to follow fw errors indication by
dump and recover procedures and enable trigger these functionality by user.
4.1) fw reporter:
The fw reporter implements diagnose and dump callbacks.
It follows symptoms of fw error such as fw syndrome by triggering
fw core dump and storing it and any other fw trace into the dump buffer.
The fw reporter diagnose command can be triggered any time by the user to check
current fw status.
4.2) fw_fatal repoter:
The fw_fatal reporter implements dump and recover callbacks.
It follows fatal errors indications by CR-space dump and recover flow.
The CR-space dump uses vsc interface which is valid even if the FW command
interface is not functional, which is the case in most FW fatal errors. The
CR-space dump is stored as a memory region snapshot to ease read by address.
The recover function runs recover flow which reloads the driver and triggers fw
reset if needed.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEGhZs6bAKwk/OTgTpSD+KveBX+j4FAl0CsLgACgkQSD+KveBX
+j7mFwf+MYvIbUO4mXyoZIezci1UCzt1vNAkUYPceE94O9fK68ItrwtwrstgIqqS
58Tgx//MXxPpe9k9NIWjeS3i8sjcb8fDoqkjOCj7KAchv0IhSUvYFRpBrUK+yTOW
NIIXZzuCgIoR9a/hVlT/lhG+dm4MX2L5dWFtORLxMoO+ff3yiy4nNf9+Zdt0H7LT
YCELWnKeIQCvdzJAxX7OyTh3eOfc/h7o1nOsU4VugBHxKxx4T+9A26d+cZeZH5Ox
3ikTCc01ivVHqcLydAy96HQu0MENSNYNpmyDxWum3oJGFFu6hBQTM2ueRmVWZfwH
DRu+hhxONZROxxtpmP/ULmwYcLnBHg==
=VhXt
-----END PGP SIGNATURE-----
Merge tag 'mlx5-updates-2019-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2019-06-13
Mlx5 devlink health fw reporters and sw reset support
This series provides mlx5 firmware reset support and firmware devlink health
reporters.
1) Add initial mlx5 kernel documentation and include devlink health reporters
2) Add CR-Space access and FW Crdump snapshot support via devlink region_snapshot
3) Issue software reset upon FW asserts
4) Add fw and fw_fatal devlink heath reporters to follow fw errors indication by
dump and recover procedures and enable trigger these functionality by user.
4.1) fw reporter:
The fw reporter implements diagnose and dump callbacks.
It follows symptoms of fw error such as fw syndrome by triggering
fw core dump and storing it and any other fw trace into the dump buffer.
The fw reporter diagnose command can be triggered any time by the user to check
current fw status.
4.2) fw_fatal repoter:
The fw_fatal reporter implements dump and recover callbacks.
It follows fatal errors indications by CR-space dump and recover flow.
The CR-space dump uses vsc interface which is valid even if the FW command
interface is not functional, which is the case in most FW fatal errors. The
CR-space dump is stored as a memory region snapshot to ease read by address.
The recover function runs recover flow which reloads the driver and triggers fw
reset if needed.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Multipath hash policy value of 0 isn't distributing since the outer IP
dest and src aren't varied eventhough the inner ones are. Since the flow
is on the inner ones in the case of tunneled traffic, hashing on them is
desired.
This is done mainly for IP over GRE, hence only tested for that. But
anything else supported by flow dissection should work.
v2: Use skb_flow_dissect_flow_keys() directly so that other tunneling
can be supported through flow dissection (per Nikolay Aleksandrov).
v3: Remove accidental inclusion of ports in the hash keys and clarify
the documentation (Nikolay Alexandrov).
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The KSZ9477 series chips have a SYNCLKO pin which by default outputs a
25MHz clock, but some board setups require a 125MHz clock instead. Added
a microchip,synclko-125 device tree property to allow indicating a
125MHz clock output is required.
Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Permit mux_id values up to 254 to be used in qmimux_register_device()
for compatibility with ip(8) and the rmnet driver.
Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
-----BEGIN PGP SIGNATURE-----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=6C8e
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20190614' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Remove references to old schedulers for the scheduler switching and
blkio controller documentation (Andreas)
- Kill duplicate check for report zone for null_blk (Chaitanya)
- Two bcache fixes (Coly)
- Ensure that mq-deadline is selected if zoned block device is enabled,
as we need that to support them (Damien)
- Fix io_uring memory leak (Eric)
- ps3vram fallout from LBDAF removal (Geert)
- Redundant blk-mq debugfs debugfs_create return check cleanup (Greg)
- Extend NOPLM quirk for ST1000LM024 drives (Hans)
- Remove error path warning that can now trigger after the queue
removal/addition fixes (Ming)
* tag 'for-linus-20190614' of git://git.kernel.dk/linux-block:
block/ps3vram: Use %llu to format sector_t after LBDAF removal
libata: Extend quirks for the ST1000LM024 drives with NOLPM quirk
bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached
bcache: fix stack corruption by PRECEDING_KEY()
blk-mq: remove WARN_ON(!q->elevator) from blk_mq_sched_free_requests
blkio-controller.txt: Remove references to CFQ
block/switching-sched.txt: Update to blk-mq schedulers
null_blk: remove duplicate check for report zone
blk-mq: no need to check return value of debugfs_create functions
io_uring: fix memory leak of UNIX domain socket inode
block: force select mq-deadline for zoned block devices
Since commit 5b18b5a737 ("block: delete part_round_stats and switch to
less precise counting") io_ticks is approximated by adding one at each
start and end of requests if jiffies has changed.
This works perfectly for requests shorter than a jiffy. If requests runs
more than 2 jiffies some I/O time will not be accounted unless there are
other reuqests.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
powerpc architecture (both 64-bit and 32-bit) supports stack protector
mechanism since some time now [see commit 06ec27aea9 ("powerpc/64:
add stack protector support")].
Update stackprotector arch support documentation to reflect the same.
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Bhupesh Sharma <bhsharma@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Update the documentation to reflect the new naming scheme with
latest changes.
Reported-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There's a paragraph that explains how to create fixed width text block,
but it doesn't explains how to create fixed width text inline, although
this feature is really used through the documentation. Fix that adding a
quick note about it.
Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Sphinx need to know when a paragraph ends. So, do some adjustments
at the file for it to be properly parsed.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
that's said, I believe that this file should be moved to the
GPU/DRM documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
In order to prepare to add them to the Kernel API book,
convert the files to ReST format.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This is a very trivial conversion: adjust the title markup
and add a few literal block markups to produce a better
visual when parsed and avoid warnings.
As newer documents related to xilinx could be added in the future,
create a new index file for it.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Convert those documents and prepare them to be part of the kernel
API book, as most of the stuff there are related to the
Kernel interfaces.
Still, in the future, it would make sense to split the docs,
as some of the stuff is clearly focused on sysadmin tasks.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion here is really trivial: just a bunch of title
markups and very few puntual changes is enough to make it to
be parsed by Sphinx and generate a nice html.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Convert the TCM docs to ReST format and add them to the
bookset.
This has a mix of userspace-faced and Kernelspace faced
docs. Still, it sounds a better candidate to be added at
the kernel API set of docs.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion here is trivial:
- Adjust the document title's markup
- Do some whitespace alignment;
- mark literal blocks;
- Use ReST way to markup indented lists.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion is trivial: just adjust title markups.
In order to avoid conflicts, let's add an :orphan: tag
to it, to be removed when this file gets added to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This file is already in a good shape: just its title and
adding some literal block markups is needed for it to be
part of the document.
While it has a small chapter with sysfs stuff, most of
the document is focused on driver development.
As it describes a kernel API, move it to the driver-api
directory.
In order to avoid conflicts, let's add an :orphan: tag
to it, to be removed when added to the driver-api book.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Convert the cgroup-v1 files to ReST format, in order to
allow a later addition to the admin-guide.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Convert the pcmcia docs to ReST format. Most of the changes here
are trivial.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Convert netlabel documentation to ReST.
This was trivial: just add proper title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Convert Intel Many Integrated Core architecture docs to ReST.
The conversion is trivial: just add title and literal block
markups, and adjust some identation.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Convert kdump documentation to ReST and add it to the
user faced manual, as the documents are mainly focused on
sysadmins that would be enabling kdump.
Note: the vmcoreinfo.rst has one very long title on one of its
sub-sections:
PG_lru|PG_private|PG_swapcache|PG_swapbacked|PG_slab|PG_hwpoision|PG_head_mask|PAGE_BUDDY_MAPCOUNT_VALUE(~PG_buddy)|PAGE_OFFLINE_MAPCOUNT_VALUE(~PG_offline)
I opted to break this one, into two entries with the same content,
in order to make it easier to display after being parsed in html and PDF.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The kbuild documentation clearly shows that the documents
there are written at different times: some use markdown,
some use their own peculiar logic to split sections.
Convert everything to ReST without affecting too much
the author's style and avoiding adding uneeded markups.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The dfl.txt file is almost there. It needs just a few
adjustments to be properly parsed.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Also, removed the Maintained by, as requested by Geert.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion is actually:
- add blank lines and indentation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The stuff there is almost already at ReST format. A
conversion for them is trivial: just add a missing titles
and fix some scape codes for them to match ReST syntax.
While here, rename the cdrom-standard.txt, with was converted
from LaTeX to ReST on the previous patch, and add it to the
index file.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This is the only LaTeX documentation file inside the documentation.
Instead of having a Latex document directly there, convert
it to ReST format, as this is the format we're using for docs.
For now, let's keep the extension as .txt in order to avoid
warnings when building the documentation with Sphinx.
The next patch patch will rename it to .rst and add it to the
building system.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The documentation is in a format that is very close to ReST format.
The conversion is actually:
- add blank lines in order to identify paragraphs;
- fixing tables markups;
- adding some lists markups;
- marking literal blocks;
- adjust some title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There are only two files within Documentation/aoe dir that are
documentation. The remaining ones are examples and shell
scripts.
Convert the two AoE files to ReST format, and add the others
as literal, as they're part of the documentation.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
-----BEGIN PGP SIGNATURE-----
iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAlz8fAYeHHRvcnZhbGRz
QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1asH/3ySguxqtqL1MCBa
4/SZ37PHeWKMerfX6ZyJdgEqK3B+PWlmuLiOMNK5h2bPLzeQQQAmHU/mfKmpXqgB
dHwUbG9yNnyUtTfsfRqAnCA6vpuw9Yb1oIzTCVQrgJLSWD0j7scBBvmzYqguOkto
ThwigLUq3AILr8EfR4rh+GM+5Dn9OTEFAxwil9fPHQo7QoczwZxpURhScT6Co9TB
DqLA3fvXbBvLs/CZy/S5vKM9hKzC+p39ApFTURvFPrelUVnythAM0dPDJg3pIn5u
g+/+gDxDFa+7ANxvxO2ng1sJPDqJMeY/xmjJYlYyLpA33B7zLNk2vDHhAP06VTtr
XCMhQ9s=
=cb80
-----END PGP SIGNATURE-----
Merge tag 'v5.2-rc4' into mauro
We need to pick up post-rc1 changes to various document files so they don't
get lost in Mauro's massive RST conversion push.
* HE (802.11ax) work continues
* WPA3 offloads
* work on extended key ID handling continues
* fixes to honour AP supported rates with auth/assoc frames
* nl80211 netlink policy improvements to fix some issues
with strict validation on new commands with old attrs
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEH1e1rEeCd0AIMq6MB8qZga/fl8QFAl0Dq/sACgkQB8qZga/f
l8RqFg/+MBcuqvW2xTy5o5Lbw7Drx5ROgFT2ZRAO6PTeboQ43NOBiXt2dEhDbp+w
mHChImF85px3SFMBSvuf97zlScNV6+VJraDDjoZFixt/gIZ/XsdURo5i4IGmUbfj
+LY1oPm7suC5Cold+yPicHTukFpeU7cSwceslFsecqiN5unlzIxf6gY9H7OL7WGT
s0Wis0x3y2m9mMi4cvQfHkFzplcTc5SBgPLyLQtHUNx1eySEZ+AymlNVmbGrRWr9
vaCU5W9+Wz0N6lEB/UI5y6fZzj5mhkcimGck1Os7dFeC7KWjntjT9iKIkFHWehxi
QfLcK6pGjLpPpMTQtOEfl34ZGnOyO8N9GmOLaaUaBeaZItabYJwfgbdr7NxiJvta
1cyqXek+D2G7WOa0aIrWhmwswKGBa3nIBqS/ZP/SEWLEzU1Cn0NiAD5Ba016TC4C
D+1BBXIdpQDoZCgfd6KkGs2Ynf/8N3OwHW+EwjpAu3IARTQzb6tMWSvkAuAgJt1F
dBD7NqdFhWXFfxqf9NpB8bkmpyNKM4Km6eO2HKpCg/5suKqYJ1Xj9EeQin1B+QsE
Jntj69hQ6Kj2gKBPy+RnCBFbxMNuFhpc1kmUOGj9U9aAcOntV0woVOyFGsbRmFo3
MI8aVU/gjQDCcHHD5xtJGHa11uIefXq1r2H7Um3sxKYeBsqFjP4=
=j+Um
-----END PGP SIGNATURE-----
Merge tag 'mac80211-next-for-davem-2019-06-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Many changes all over:
* HE (802.11ax) work continues
* WPA3 offloads
* work on extended key ID handling continues
* fixes to honour AP supported rates with auth/assoc frames
* nl80211 netlink policy improvements to fix some issues
with strict validation on new commands with old attrs
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
x86 got added twice to the index via the RST conversion and the MDS
documentation changes. Remove one instance.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
- Fix broken SVE ptrace API when running in a big-endian configuration
- Fix performance regression due to off-by-one in TLBI range checking
- Fix build regression when using Clang
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl0DsZ0ACgkQt6xw3ITB
YzRE3wf9GJibmSnm9q5gmtHcKMrH+atXrI93nyzhBZxYaAYAKSiz7RCMSpc7iudI
bGMruaaqn/2xrdOie3vOOfSqFfzrfcFOuh/0id9R2IyiFSg08BrI369buejNRtm+
BUhdUQCe5p5afJ7PYFa7CYD+tSC1WiHXfOhH6sRYllerwaMiR9y/eqf3Gh5zB26Q
ca/+2Jh59DxXIpSWP9nTzPyV9xKOJ1B8JdMR5BMIUnOgUXQhMwNeuivRrZnEG9yT
PZDGbk5WxKci+LHPOt7stFFuo7hZn3SCKJ0mZ20VUs0w7ETMJuI0Ss4TlE2mgYag
TASmsypuLdRz5mxIeyY5QYXppSyYiA==
=AhWz
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Here are some arm64 fixes for -rc5.
The only non-trivial change (in terms of the diffstat) is fixing our
SVE ptrace API for big-endian machines, but the majority of this is
actually the addition of much-needed comments and updates to the
documentation to try to avoid this mess biting us again in future.
There are still a couple of small things on the horizon, but nothing
major at this point.
Summary:
- Fix broken SVE ptrace API when running in a big-endian configuration
- Fix performance regression due to off-by-one in TLBI range checking
- Fix build regression when using Clang"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/sve: Fix missing SVE/FPSIMD endianness conversions
arm64: tlbflush: Ensure start/end of address range are aligned to stride
arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS
There's no rate control algorithm that *doesn't* want to call
it internally, and calling it internally will let us modify
its behaviour in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Quoting Paul [1]:
"Given that a quick (and perhaps error-prone) search of the uses
of rcu_assign_pointer() in v5.1 didn't find a single use of the
return value, let's please instead change the documentation and
implementation to eliminate the return value."
[1] https://lkml.kernel.org/r/20190523135013.GL28207@linux.ibm.com
Signed-off-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: rcu@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Add binding documentation for the imx8qxp DDR performance monitor unit.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[will: Removed trailing newline]
Signed-off-by: Will Deacon <will.deacon@arm.com>
The in-memory representation of SVE and FPSIMD registers is
different: the FPSIMD V-registers are stored as single 128-bit
host-endian values, whereas SVE registers are stored in an
endianness-invariant byte order.
This means that the two representations differ when running on a
big-endian host. But we blindly copy data from one representation
to another when converting between the two, resulting in the
register contents being unintentionally byteswapped in certain
situations. Currently this can be triggered by the first SVE
instruction after a syscall, for example (though the potential
trigger points may vary in future).
So, fix the conversion functions fpsimd_to_sve(), sve_to_fpsimd()
and sve_sync_from_fpsimd_zeropad() to swab where appropriate.
There is no common swahl128() or swab128() that we could use here.
Maybe it would be worth making this generic, but for now add a
simple local hack.
Since the byte order differences are exposed in ABI, also clarify
the documentation.
Cc: Alex Bennée <alex.bennee@linaro.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Alan Hayward <alan.hayward@arm.com>
Cc: Julien Grall <julien.grall@arm.com>
Fixes: bc0ee47603 ("arm64/sve: Core task context handling")
Fixes: 8cd969d28f ("arm64/sve: Signal handling support")
Fixes: 43d4da2c45 ("arm64/sve: ptrace and ELF coredump support")
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
[will: Fix typos in comments and docs spotted by Julien]
Signed-off-by: Will Deacon <will.deacon@arm.com>
CFQ is gone. No need anymore to document its "proportional weight time
based division of disk policy".
Signed-off-by: Andreas Herrmann <aherrmann@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Remove references to CFQ and legacy block layer which are gone.
Update example with what's available under blk-mq.
Signed-off-by: Andreas Herrmann <aherrmann@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Rewrite the skcipher API example, changing it to encrypt a buffer with
AES-256-XTS. This addresses various problems with the previous example:
- It requests a specific driver "cbc-aes-aesni", which is unusual.
Normally users ask for "cbc(aes)", not a specific driver.
- It encrypts only a single AES block. For the reader, that doesn't
clearly distinguish the "skcipher" API from the "cipher" API.
- Showing how to encrypt something with bare CBC is arguably a poor
choice of example, as it doesn't follow modern crypto trends. Now,
usually authenticated encryption is recommended, in which case the
user would use the AEAD API, not skcipher. Disk encryption is still a
legitimate use for skcipher, but for that usually XTS is recommended.
- Many other bugs and poor coding practices, such as not setting
CRYPTO_TFM_REQ_MAY_SLEEP, unnecessarily allocating a heap buffer for
the IV, unnecessary NULL checks, using a pointless wrapper struct, and
forgetting to set an error code in one case.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch fixes a spelling typo in rds.txt
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add bindings for Wiznet's w5x00 series of SPI interfaced Ethernet chips.
Based on the bindings for microchip,enc28j60.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
When McASP is bus master it's reference clock (AUXCLK) might not be a
static clock, but running at a specific FS ratio.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The FMC subsystem was created in 2012 with the ambition to
drive development of drivers for this hardware upstream.
The current implementation has architectural flaws and would
need to be revamped using real hardware to something that can
reuse existing kernel abstractions in the subsystems for e.g.
I2C, FPGA and GPIO.
We have concluded that for the mainline kernel it will be
better to delete the subsystem and start over with a clean
slate when/if an active maintainer steps up.
For details see:
https://lkml.org/lkml/2018/10/29/534
Suggested-by: Federico Vaga <federico.vaga@cern.ch>
Cc: Pat Riehecky <riehecky@fnal.gov>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Introduce a new type for reserved region. This corresponds
to directly mapped regions which are known to be relaxable
in some specific conditions, such as device assignment use
case. Well known examples are those used by USB controllers
providing PS/2 keyboard emulation for pre-boot BIOS and
early BOOT or RMRRs associated to IGD working in legacy mode.
Since commit c875d2c1b8 ("iommu/vt-d: Exclude devices using RMRRs
from IOMMU API domains") and commit 18436afdc1 ("iommu/vt-d: Allow
RMRR on graphics devices too"), those regions are currently
considered "safe" with respect to device assignment use case
which requires a non direct mapping at IOMMU physical level
(RAM GPA -> HPA mapping).
Those RMRRs currently exist and sometimes the device is
attempting to access it but this has not been considered
an issue until now.
However at the moment, iommu_get_group_resv_regions() is
not able to make any difference between directly mapped
regions: those which must be absolutely enforced and those
like above ones which are known as relaxable.
This is a blocker for reporting severe conflicts between
non relaxable RMRRs (like MSI doorbells) and guest GPA space.
With this new reserved region type we will be able to use
iommu_get_group_resv_regions() to enumerate the IOVA space
that is usable through the IOMMU API without introducing
regressions with respect to existing device assignment
use cases (USB and IGD).
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
with DT bindings:
- leds-lm3697
- leds-lm36274
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQQUwxxKyE5l/npt8ARiEGxRG/Sl2wUCXQAatQAKCRBiEGxRG/Sl
2/2KAQDHnHR0rIITh3hH49YutOCzGK4oaut8sXfy+8PTEdKBlQEApQP1O1RJTTws
/KDS8qpNdwOQOW/KYiYDX5R8GcOeZwg=
=we/t
-----END PGP SIGNATURE-----
Merge tag 'ti-lmu-led-drivers' into for-next
Merge immutable branch between LEDs, MFD and REGULATOR due to
TI LMU LED support rework and introduction of two new drivers
with DT bindings.
* tag 'ti-lmu-led-drivers':
leds: lm36274: Introduce the TI LM36274 LED driver
dt-bindings: leds: Add LED bindings for the LM36274
regulator: lm363x: Add support for LM36274
mfd: ti-lmu: Add LM36274 support to the ti-lmu
dt-bindings: mfd: Add lm36274 bindings to ti-lmu
leds: lm3697: Introduce the lm3697 driver
mfd: ti-lmu: Remove support for LM3697
dt-bindings: ti-lmu: Modify dt bindings for the LM3697
leds: TI LMU: Add common code for TI LMU devices
dt-bindings: mfd: LMU: Add ti,brightness-resolution
dt-bindings: mfd: LMU: Add the ramp up/down property
TLS offload drivers keep track of TCP seq numbers to make sure
the packets are fed into the HW in order.
When packets get dropped on the way through the stack, the driver
will get out of sync and have to use fallback encryption, but unless
TCP seq number is resynced it will never match the packets correctly
(or even worse - use incorrect record sequence number after TCP seq
wraps).
Existing drivers (mlx5) feed the entire record on every out-of-order
event, allowing FW/HW to always be in sync.
This patch adds an alternative, more akin to the RX resync. When
driver sees a frame which is past its expected sequence number the
stream must have gotten out of order (if the sequence number is
smaller than expected its likely a retransmission which doesn't
require resync). Driver will ask the stack to perform TX sync
before it submits the next full record, and fall back to software
crypto until stack has performed the sync.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
TLS offload device may lose sync with the TCP stream if packets
arrive out of order. Drivers can currently request a resync at
a specific TCP sequence number. When a record is found starting
at that sequence number kernel will inform the device of the
corresponding record number.
This requires the device to constantly scan the stream for a
known pattern (constant bytes of the header) after sync is lost.
This patch adds an alternative approach which is entirely under
the control of the kernel. Kernel tracks records it had to fully
decrypt, even though TLS socket is in TLS_HW mode. If multiple
records did not have any decrypted parts - it's a pretty strong
indication that the device is out of sync.
We choose the min number of fully encrypted records to be 2,
which should hopefully be more than will get retransmitted at
a time.
After kernel decides the device is out of sync it schedules a
resync request. If the TCP socket is empty the resync gets
performed immediately. If socket is not empty we leave the
record parser to resync when next record comes.
Before resync in message parser we peek at the TCP socket and
don't attempt the sync if the socket already has some of the
next record queued.
On resync failure (encrypted data continues to flow in) we
retry with exponential backoff, up to once every 128 records
(with a 16k record thats at most once every 2M of data).
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-----BEGIN PGP SIGNATURE-----
iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAlz8fAYeHHRvcnZhbGRz
QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1asH/3ySguxqtqL1MCBa
4/SZ37PHeWKMerfX6ZyJdgEqK3B+PWlmuLiOMNK5h2bPLzeQQQAmHU/mfKmpXqgB
dHwUbG9yNnyUtTfsfRqAnCA6vpuw9Yb1oIzTCVQrgJLSWD0j7scBBvmzYqguOkto
ThwigLUq3AILr8EfR4rh+GM+5Dn9OTEFAxwil9fPHQo7QoczwZxpURhScT6Co9TB
DqLA3fvXbBvLs/CZy/S5vKM9hKzC+p39ApFTURvFPrelUVnythAM0dPDJg3pIn5u
g+/+gDxDFa+7ANxvxO2ng1sJPDqJMeY/xmjJYlYyLpA33B7zLNk2vDHhAP06VTtr
XCMhQ9s=
=cb80
-----END PGP SIGNATURE-----
Merge tag 'v5.2-rc4' into media/master
There are some conflicts due to SPDX changes. We also have more
patches being merged via media tree touching them.
So, let's merge back from upstream and address those.
Linux 5.2-rc4
* tag 'v5.2-rc4': (767 commits)
Linux 5.2-rc4
MAINTAINERS: Karthikeyan Ramasubramanian is MIA
i2c: xiic: Add max_read_len quirk
lockref: Limit number of cmpxchg loop retries
uaccess: add noop untagged_addr definition
x86/insn-eval: Fix use-after-free access to LDT entry
kbuild: use more portable 'command -v' for cc-cross-prefix
s390/unwind: correct stack switching during unwind
block, bfq: add weight symlink to the bfq.weight cgroup parameter
cgroup: let a symlink too be created with a cftype file
drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards
drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW
drm/nouveau/secboot: split out FW version-specific LS function pointers
drm/nouveau/secboot: pass max supported FW version to LS load funcs
drm/nouveau/core: support versioned firmware loading
drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device
block: free sched's request pool in blk_cleanup_queue
pktgen: do not sleep with the thread lock held.
net: mvpp2: Use strscpy to handle stat strings
net: rds: fix memory leak in rds_ib_flush_mr_pool
...
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add documentation for the meson vdec dts node.
Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add trigger type setting for csky,mpintc. The driver also could
support #interrupt-cells <1> and it wouldn't invalidate existing
DTs. Here we only show the complete format.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Rob Herring <robh+dt@kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Update the dt-binding document to support new compatible string for the
GPIO interrupt controller which found in Amlogic's Meson-G12A SoC.
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Instead of keeping the documentation inside s390dbf.rst,
move them to arch/s390/include/asm/debug.h, using standard
kernel-doc markups.
Keeping the documentation close to the code helps to keep it
updated. It also makes easier to document other stuff inside
debug.h, as all it needs is to add kernel-doc markups inside
it, as the file will be already be included at the produced
documentation.
-
Those were converted to kerneldoc using this script specially
designed to parse ths file, and manually editted:
<script>
use strict;
my $mode = "";
my $parameter = "";
my $ret = "";
my $descr = "";
sub add_var($)
{
my $ln = shift;
$ln =~ s/^\s+//;
$ln =~ s/\s+$//;
return if ($ln eq "");
$ln =~ s/^(\S+)\s+/$1\t/;
print " * \@$ln\n";
}
sub add_return($)
{
my $ln = shift;
print " *\n * Return:\n" if ($mode ne "Return Value:");
$ln =~ s/^\s+//;
$ln =~ s/\s+$//;
return if ($ln eq "");
print " * - $ln\n";
}
sub add_description($)
{
my $ln = shift;
print " *\n * \n" if ($mode ne "Description:");
$ln =~ s/^\s+//;
$ln =~ s/\s+$//;
return if ($ln eq "");
print " * $ln\n";
}
sub flush_results()
{
print " */\n\n";
}
while (<>) {
if (m/^[\-]+$/) {
flush_results();
$mode = "";
$parameter = "";
$ret = "";
$descr = "";
next;
}
if (m/(Parameter:)(.*)/) {
print " *\n" if ($mode eq "func");
add_var($2);
$mode = $1;
next;
}
if (m/(Return Value:)(.*)/) {
add_return($2);
$mode = $1;
next;
}
if (m/(Description:)(.*)/) {
add_description($2);
$mode = $1;
next;
}
if ($mode eq "Parameter:") {
add_var($_);
next;
}
if ($mode eq "Return Value:") {
add_return($_);
next;
}
if ($mode eq "Description:") {
add_description($_);
next;
}
next if (m/^\s*$/);
if (m/^\S+.*\s\*?(\S+)\s*\(/) {
if ($mode eq "") {
print "/**\n * $1()\n";
} else {
print " * $1()\n";
}
$mode="func";
}
}
flush_results();
</script>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Convert all text files with s390 documentation to ReST format.
Tried to preserve as much as possible the original document
format. Still, some of the files required some work in order
for it to be visible on both plain text and after converted
to html.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
The first bit/value table inside the document is very
hard to read and won't fit ReST format. Also, some columns aren't
properly aligned.
Convert it to a nice ascii artwork table with makes it easier to
read as plain text and is compatible with ReST format parser
on Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEEmvEkXzgOfc881GuFWsYho5HknSAFAlz60fwTHG1rbEBwZW5n
dXRyb25peC5kZQAKCRBaxiGjkeSdILI8B/41j6UxwMSYMetM/Vw2AyqPt0z671Gu
mAVzDK3PZF5WIzD5JsDlUhwN1dqvfvAZeSS1tQwQ18ZpQLkRSxlAKhkLLlxBVKpJ
0uDwYuFWwXF8DbdlRwZq+Db0GGAXW5+8WtA4gp9GTiIP6kTgmqnnaZvWPnQzQmKJ
RCY8YAzF52jXa4hBfLsXiG7NoO6cZHQJMFKLsQEpHV+GMqTcAYJHzBP6YVVXC8PG
495TREmTq5lvRKc2U3QS6//yPWleFYr5ViW/psEcBPCGdruyJI8LjDRaqnGWRBJX
vPyEVSFHtQZu49Vue3g4jbjhVr8OWTV/MsFgE/zK5Ahe+2G5969pID3n
=iCgZ
-----END PGP SIGNATURE-----
Merge tag 'linux-can-fixes-for-5.2-20190607' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2019-06-07
this is a pull reqeust of 9 patches for net/master.
The first patch is by Alexander Dahl and removes a duplicate menu entry from
the Kconfig. The next patch by Joakim Zhang fixes the timeout in the flexcan
driver when setting small bit rates. Anssi Hannula's patch for the xilinx_can
driver fixes the bittiming_const for CAN FD core. The two patches by Sean
Nyekjaer bring mcp25625 to the existing mcp251x driver. The patch by Eugen
Hristev implements an errata for the m_can driver. YueHaibing's patch fixes the
error handling ing can_init(). The patch by Fabio Estevam for the flexcan
driver removes an unneeded registration message during flexcan_probe(). And the
last patch is by Willem de Bruijn and adds the missing purging the socket
error queue on sock destruct.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The Keystone 2 66AK2HK/E/L 1G Ethernet Switch Subsystems contains The
Common Platform Time Sync (CPTS) module which is in general compatible with
CPTS module found on "legacy" TI AM3/4/5 SoCs. So, the basic support for
Keystone 2 CPTS is available by default, but not documented.
The Keystone 2 CPTS module supports also some additional features like time
sync reference (RFTCLK) clock selection through CPTS_RFTCLK_SEL register
(offset: x08) in CPTS module, which is modelled as multiplexer clock.
This patch adds missed binding documentation for Keystone 2 66AK2HK/E/L
CPTS module.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some documentation files were still pointing to the old place.
Fixes: 229b4e0728 ("Documentation: PCI: convert pci.txt to reST")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
A recent documentation conversion renamed this file but forgot
to update the links.
Fixes: af96c1e304 ("docs: filesystems: vfs: Convert vfs.txt to RST")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The hisax driver got removed on 85993b8c97 ("isdn: remove hisax driver"),
but a left-over was kept at kernel-parameters.txt.
Fixes: 85993b8c97 ("isdn: remove hisax driver")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Mostly due to x86 and acpi conversion, several documentation
links are still pointing to the old file. Fix them.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>
Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Bhupesh Sharma <bhsharma@redhat.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This document is used by multiple architectures:
$ echo $(git grep -l pkey_mprotect arch|cut -d'/' -f 2|sort|uniq)
alpha arm arm64 ia64 m68k microblaze mips parisc powerpc s390 sh sparc x86 xtensa
So, let's move it to the core book and adjust the links to it
accordingly.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation/networking/device_drivers/freescale/dpaa2/dpio-driver.rst:43: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/networking/device_drivers/freescale/dpaa2/dpio-driver.rst:63: WARNING: Unexpected indentation. looking for now-outdated files... none found
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There's a table there with produces two warnings when built
with Sphinx:
Documentation/networking/dsa/sja1105.rst:91: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/networking/dsa/sja1105.rst:91: WARNING: Block quote ends without a blank line; unexpected unindent.
It will still produce a table, but the html output is wrong, as
it won't interpret the second line as the continuation for the
first ones, because identation doesn't match.
After the change, the output looks a way better and we got rid
of two warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Multi-line literal markups only work when they're idented at the
same level, with is not the case here:
Documentation/security/keys/core.rst:1597: WARNING: Inline literal start-string without end-string.
Documentation/security/keys/core.rst:1597: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1597: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1598: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1598: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1600: WARNING: Inline literal start-string without end-string.
Documentation/security/keys/core.rst:1600: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1600: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1600: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1600: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1666: WARNING: Inline literal start-string without end-string.
Documentation/security/keys/core.rst:1666: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1666: WARNING: Inline emphasis start-string without end-string.
Documentation/security/keys/core.rst:1666: WARNING: Inline emphasis start-string without end-string.
Fix it by using a code-block instead.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The code-block tag is at the wrong place, causing those
warnings:
Documentation/security/keys/trusted-encrypted.rst:112: WARNING: Literal block expected; none found.
Documentation/security/keys/trusted-encrypted.rst:121: WARNING: Unexpected indentation.
Documentation/security/keys/trusted-encrypted.rst:122: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/security/keys/trusted-encrypted.rst:123: WARNING: Block quote ends without a blank line; unexpected unindent.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: James Morris <jamorris@linux.microsoft.com>
Acked-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There's a wrong identation on a code block, and it tries to use
a reference that was not defined at the Italian translation.
Documentation/translations/it_IT/process/license-rules.rst:329: WARNING: Literal block expected; none found.
Documentation/translations/it_IT/process/license-rules.rst:332: WARNING: Unexpected indentation.
Documentation/translations/it_IT/process/license-rules.rst:339: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/translations/it_IT/process/license-rules.rst:341: WARNING: Unexpected indentation.
Documentation/translations/it_IT/process/license-rules.rst:305: WARNING: Unknown target name: "metatags".
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation/process/management-style.rst:35: WARNING: duplicate label decisions, other instance in Documentation/translations/zh_CN/process/management-style.rst
Documentation/process/programming-language.rst:37: WARNING: duplicate citation c-language, other instance in Documentation/translations/zh_CN/process/programming-language.rst
Documentation/process/programming-language.rst:38: WARNING: duplicate citation gcc, other instance in Documentation/translations/zh_CN/process/programming-language.rst
Documentation/process/programming-language.rst:39: WARNING: duplicate citation clang, other instance in Documentation/translations/zh_CN/process/programming-language.rst
Documentation/process/programming-language.rst:40: WARNING: duplicate citation icc, other instance in Documentation/translations/zh_CN/process/programming-language.rst
Documentation/process/programming-language.rst:41: WARNING: duplicate citation gcc-c-dialect-options, other instance in Documentation/translations/zh_CN/process/programming-language.rst
Documentation/process/programming-language.rst:42: WARNING: duplicate citation gnu-extensions, other instance in Documentation/translations/zh_CN/process/programming-language.rst
Documentation/process/programming-language.rst:43: WARNING: duplicate citation gcc-attribute-syntax, other instance in Documentation/translations/zh_CN/process/programming-language.rst
Documentation/process/programming-language.rst:44: WARNING: duplicate citation n2049, other instance in Documentation/translations/zh_CN/process/programming-language.rst
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Get rid of those warnings:
Documentation/virtual/kvm/amd-memory-encryption.rst:244: WARNING: Citation [white-paper] is not referenced.
Documentation/virtual/kvm/amd-memory-encryption.rst:246: WARNING: Citation [amd-apm] is not referenced.
Documentation/virtual/kvm/amd-memory-encryption.rst:247: WARNING: Citation [kvm-forum] is not referenced.
For references that aren't mentioned at the text by adding an
explicit reference to them.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Sphinx doesn't like orphan documents:
Documentation/accelerators/ocxl.rst: WARNING: document isn't included in any toctree
Documentation/arm/stm32/overview.rst: WARNING: document isn't included in any toctree
Documentation/arm/stm32/stm32f429-overview.rst: WARNING: document isn't included in any toctree
Documentation/arm/stm32/stm32f746-overview.rst: WARNING: document isn't included in any toctree
Documentation/arm/stm32/stm32f769-overview.rst: WARNING: document isn't included in any toctree
Documentation/arm/stm32/stm32h743-overview.rst: WARNING: document isn't included in any toctree
Documentation/arm/stm32/stm32mp157-overview.rst: WARNING: document isn't included in any toctree
Documentation/gpu/msm-crash-dump.rst: WARNING: document isn't included in any toctree
Documentation/interconnect/interconnect.rst: WARNING: document isn't included in any toctree
Documentation/laptops/lg-laptop.rst: WARNING: document isn't included in any toctree
Documentation/powerpc/isa-versions.rst: WARNING: document isn't included in any toctree
Documentation/virtual/kvm/amd-memory-encryption.rst: WARNING: document isn't included in any toctree
Documentation/virtual/kvm/vcpu-requests.rst: WARNING: document isn't included in any toctree
So, while they aren't on any toctree, add :orphan: to them, in order
to silent this warning.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
When building it, it gets this warning:
Documentation/admin-guide/mm/numaperf.rst:168: WARNING: Footnote [1] is not referenced.
The problem is that this is not really a reference, as it is not
mentioned within the documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Changeset 5700d19748 ("docs: Get rid of the "basic profiling" guide")
removed an old basic-profiling.txt file that was not updated over
the last 11 years and won't reflect the post-perf era.
It makes no sense to keep its translation, so get rid of it too.
Fixes: 5700d19748 ("docs: Get rid of the "basic profiling" guide")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Alex Shi <alex.shi@linux.alibaba.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The cpuidle doc was split on two, one at the admin guide
and another one at the driver API guide. Instead of pointing
to a non-existent file, point to both (admin guide being
the first one).
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The patch adds k3 am654 compatible, specific properties and
an example.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Daniel Borkmann says:
====================
pull-request: bpf 2019-06-07
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix several bugs in riscv64 JIT code emission which forgot to clear high
32-bits for alu32 ops, from Björn and Luke with selftests covering all
relevant BPF alu ops from Björn and Jiong.
2) Two fixes for UDP BPF reuseport that avoid calling the program in case of
__udp6_lib_err and UDP GRO which broke reuseport_select_sock() assumption
that skb->data is pointing to transport header, from Martin.
3) Two fixes for BPF sockmap: a use-after-free from sleep in psock's backlog
workqueue, and a missing restore of sk_write_space when psock gets dropped,
from Jakub and John.
4) Fix unconnected UDP sendmsg hook API which is insufficient as-is since it
breaks standard applications like DNS if reverse NAT is not performed upon
receive, from Daniel.
5) Fix an out-of-bounds read in __bpf_skc_lookup which in case of AF_INET6
fails to verify that the length of the tuple is long enough, from Lorenz.
6) Fix libbpf's libbpf__probe_raw_btf to return an fd instead of 0/1 (for
{un,}successful probe) as that is expected to be propagated as an fd to
load_sk_storage_btf() and thus closing the wrong descriptor otherwise,
from Michal.
7) Fix bpftool's JSON output for the case when a lookup fails, from Krzesimir.
8) Minor misc fixes in docs, samples and selftests, from various others.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fully compatible with mcp2515, the mcp25625 have integrated transceiver.
This patch add the mcp25625 to the device tree bindings documentation.
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
With ReST, [foo]_ means a reference to foo, causing this warning:
Documentation/driver-api/gpio/driver.rst:419: WARNING: Unknown target name: "devm".
Fix it by using a literal for the name.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some new files got converted to yaml, but references weren't
updated accordingly.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Add the LM36274 LED specific bindings.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Some ISDN files that got removed in net-next had some changes
done in mainline, take the removals.
Signed-off-by: David S. Miller <davem@davemloft.net>
After following the document step by step, the `cat trace` can't be
worked without enabling tracing_on and might mislead newbies about
the functionality.
Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Fix a couple of s/poped/popped/ typos.
Signed-off-by: George G. Davis <george_davis@mentor.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
In "Y+P" of this line, there are two non-ASCII characters(0xd9 0x8d)
following behind the 'Y'. Shown as a small '=' under the '+' in VIM
and a '賺' in webpage[1].
I think it's a mistake and remove these strange characters.
[1]: https://www.kernel.org/doc/Documentation/filesystems/xfs-delayed-logging-design.txt
Signed-off-by: Shiyang Ruan <ruansy.fnst@cn.fujitsu.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation alignment for the following changes:
a700767a76 (doc/docs-next) docs: requirements.txt: recommend Sphinx 1.7.9
Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Fix italian translation file references based on
`scripts/documentation-file-ref-check` output.
Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The clk_foo_ops struct example has syntax errors. Fix it so it can be
copy-pasted and used more easily.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
While this doesn't make sense for production Kernels, in order to
avoid regressions when documents are touched, let's add a
check target at the make file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
All but one reference is capitalized. Fix the remaining one.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Fix typo in documentation file timekeeping.rst: CLOCK_MONONOTNIC_COARSE
should be CLOCK_MONOTONIC_COARSE.
Signed-off-by: Aurelien Thierry <aurelien.thierry@quoscient.io>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The example in the docs regarding multiple device-mappers is invalid (it
has a wrong number of arguments), it's a left over from previous
versions of the patch.
Replace the example with an valid and tested one.
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The exported function name is dma_max_mapping_size(), not
dma_direct_max_mapping_size() so that this patch fixes
the function name in the documentation.
Fixes: 133d624b1c ("dma: Introduce dma_max_mapping_size()")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The axienet driver requires the use of an axistream-connected attribute,
but this isn't documented in the devicetree bindings. Document how this
attribute is supposed to be used, including the upcoming change to make
the usage of this attribute optional.
Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
The mdio child node for the MDIO bus is generally required when using
this driver but was not documented other than being shown in the
example. Document it as an optional (but usually required) parameter.
Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously this driver only handled interrupts from the DMA RX and TX
blocks, not from the Ethernet core itself. Add optional support for
the Ethernet core interrupt, which is used to detect rx_missed and
framing errors signalled by the hardware. In order to use this
interrupt, a third interrupt needs to be specified in the device tree.
Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
This driver was previously always calculating the MDIO clock divisor
(from AXI bus clock to MDIO bus clock) based on the CPU clock frequency,
assuming that it is the same as the AXI bus frequency, but that
simplistic method only works on the MicroBlaze platform.
Add support for specifying the clock used for the device in the device
tree using the clock framework. If the clock is specified then it will
be used when calculating the clock divisor. The previous CPU clock
detection method is left for backward compatibility if no clock is
specified.
Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the "altr,socfpga-stmmac-a10-s10" binding for Arria10/Agilex/Stratix10
implementation of the stmmac ethernet controller.
On the Arria10, Agilex, and Stratix10 SoCs, there are a few differences from
the Cyclone5 and Arria5:
- The emac PHY setup bits are in separate registers.
- The PTP reference clock select mask is different.
- The register to enable the emac signal from FPGA is different.
Because of these differences, the dwmac-socfpga glue logic driver will
use this new binding to set the appropriate bits for PHY, PTP reference
clock, and signal from FPGA.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCXPkV+wAKCRDh3BK/laaZ
PMGyAQDq6ry0bTRPIL52Ek+eRS/pi3bIsH96e22Q6W/NrAQEfwD+NtFZneAW/Tux
AuKIRWqS7UdqCjLurwMHfR9bOHrBDQI=
=z7pu
-----END PGP SIGNATURE-----
Merge tag 'ovl-fixes-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"Here's one fix for a class of bugs triggered by syzcaller, and one
that makes xfstests fail less"
* tag 'ovl-fixes-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: doc: add non-standard corner cases
ovl: detect overlapping layers
ovl: support the FS_IOC_FS[SG]ETXATTR ioctls
Add the LM36274 backlight driver with regulator support.
This is a multi-function device for backlight applications.
Backlight properties will be documented in it's a supplemental
bindings document.
Regulator support is documented in the regulator/lm363x-regulator.txt
http://www.ti.com/lit/ds/symlink/lm36274.pdf
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Some times integer power functions, such as int_sqrt(), are needed, but
there is nothing about them in the generated documentation.
Fill the gap by adding a reference to the corresponding exported functions.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Some times string helpers are needed, but there is nothing about them
in the generated documentation.
Fill the gap by adding a reference to string_helpers.c exported functions.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Work from Tobin Harding:
Here is an updated version of the VFS doc conversion. This series
in no way represents a final point for the VFS documentation rather
it is a small step towards getting VFS docs updated. This series
does not update the content of vfs.txt, only does formatting.
Currently vfs.rst does not render well into HTML the method descriptions
for VFS data structures. We can improve the HTML output by putting the
description string on a new line following the method name.
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
When RST packets are sent because no socket could be found,
it makes sense to use flowlabel_reflect sysctl to decide
if a reflection of the flowlabel is requested.
This extends commit 22b6722bfa ("ipv6: Add sysctl for per
namespace flow label reflection"), for some TCP RST packets.
In order to provide full control of this new feature,
flowlabel_reflect becomes a bitmask.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use hverkuil-cisco@xs4all.nl instead of hans.verkuil@cisco.com.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This changes v4l2_pix_format and v4l2_plane_pix_format sizeimage
field description to allow v4l clients to set bigger image size
in case of variable length compressed data.
Presently s5p-mfc and mtk-vcodec codec drivers use that. Lets
make it obvious in the documentation.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Fix minor typos in the DVB demux documentation.
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The mv88e6250 has port_base_addr 0x8 or 0x18 (depending on
configuration pins), so it constitutes a new family and hence needs
its own compatible string.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's possible that TCP stack will decide to retransmit a packet
right when that packet's data gets acked, especially in presence
of packet reordering. This means that packets may be in flight,
even though tls_device code has already freed their record state.
Make fill_sg_in() and in turn tls_sw_fallback() not generate a
warning in that case, and quietly proceed to drop such frames.
Make the exit path from tls_sw_fallback() drop monitor friendly,
for users to be able to troubleshoot dropped retransmissions.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds documentation for Device-Tree bindings for the
Socionext Synquacer spi driver.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
My previous fix miserably failed to catch all of the invocations of
"./scripts/sphinx-pre-install", so we got build errors. Try again with
more caffeine.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add binding document for the ethernet on MT7629 SoC.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
add an extra required property "mediatek,physpeed" to sgmiisys to determine
link speed to match up the capability of the target PHY.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 8df39e1687 ("media: dt-bindings: media: Add vendor prefix for
allegro") introduced a new devicetree binding vendors, however with an
improper syntax making the resulting YAML impossible to parse. Let's fix
this.
Fixes: 8df39e1687 ("media: dt-bindings: media: Add vendor prefix for allegro")
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Clarify that pure non-RMW usage of atomic_t is pointless, there is
nothing 'magical' about atomic_set() / atomic_read().
This is something that seems to confuse people, because I happen upon it
semi-regularly.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190524115231.GN2623@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
More words are added to lockdep design document regarding key concepts,
which should help people without lockdep experience read and understand
lockdep reports.
Signed-off-by: Yuyang Du <duyuyang@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bvanassche@acm.org
Cc: frederic@kernel.org
Cc: ming.lei@redhat.com
Cc: will.deacon@arm.com
Link: https://lkml.kernel.org/r/20190506081939.74287-3-duyuyang@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
When isdn4linux came up in the context of another patch series, I
remembered that we had discussed removing it a while ago.
It turns out that the suggestion from Karsten Keil wa to remove I4L
in 2018 after the last public ISDN networks are shut down. This has
happened now (with a very small number of exceptions), so I guess it's
time to try again.
We currently have three ISDN stacks in the kernel: the original
isdn4linux (with the hisax driver), the newer CAPI (with four drivers),
and finally the mISDN stack (supporting roughly the same hardware as
hisax).
As far as I can tell, anyone using ISDN with mainline kernel drivers in
the past few years uses mISDN, and this is typically used for voice-only
PBX installations that don't require a public network.
The older stacks support additional features for data networks, but those
typically make no sense any more if there is no network to connect to.
My proposal for this time is to kill off isdn4linux entirely, as it seems
to have been unusable for quite a while. This code has been abandoned
for many years and it does cause problems for treewide maintenance as
it tends to do everything that we try to stop doing.
Birger Harzenetter mentioned that is is still using i4l in order to
make use of the 'divert' feature that is not part of mISDN, but has
otherwise moved on to mISDN for normal operation, like apparently
everyone else.
CAPI in turn is not quite as obsolete, but two of the drivers (avm
and hysdn) don't seem to be used at all, while another one (gigaset)
will stop being maintained as Paul Bolle is no longer able to
test it after the network gets shut down in September.
All three are now moved into drivers/staging to let others speak
up in case there are remaining users.
This leaves Bluetooth CMTP as the only remaining user of CAPI, but
Marcel Holtmann wishes to keep maintaining it.
For the discussion on version 1, see [2]
Unfortunately, Karsten Keil as the maintainer has not participated in
the discussion.
Arnd
[1] https://patchwork.kernel.org/patch/8484861/#17900371
[2] https://listserv.isdn4linux.de/pipermail/isdn4linux/2019-April/thread.html
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=1ISP
-----END PGP SIGNATURE-----
Merge tag 'isdn-removal' of https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
Arnd Bergmann says:
====================
isdn: deprecate non-mISDN drivers
When isdn4linux came up in the context of another patch series, I
remembered that we had discussed removing it a while ago.
It turns out that the suggestion from Karsten Keil wa to remove I4L
in 2018 after the last public ISDN networks are shut down. This has
happened now (with a very small number of exceptions), so I guess it's
time to try again.
We currently have three ISDN stacks in the kernel: the original
isdn4linux (with the hisax driver), the newer CAPI (with four drivers),
and finally the mISDN stack (supporting roughly the same hardware as
hisax).
As far as I can tell, anyone using ISDN with mainline kernel drivers in
the past few years uses mISDN, and this is typically used for voice-only
PBX installations that don't require a public network.
The older stacks support additional features for data networks, but those
typically make no sense any more if there is no network to connect to.
My proposal for this time is to kill off isdn4linux entirely, as it seems
to have been unusable for quite a while. This code has been abandoned
for many years and it does cause problems for treewide maintenance as
it tends to do everything that we try to stop doing.
Birger Harzenetter mentioned that is is still using i4l in order to
make use of the 'divert' feature that is not part of mISDN, but has
otherwise moved on to mISDN for normal operation, like apparently
everyone else.
CAPI in turn is not quite as obsolete, but two of the drivers (avm
and hysdn) don't seem to be used at all, while another one (gigaset)
will stop being maintained as Paul Bolle is no longer able to
test it after the network gets shut down in September.
All three are now moved into drivers/staging to let others speak
up in case there are remaining users.
This leaves Bluetooth CMTP as the only remaining user of CAPI, but
Marcel Holtmann wishes to keep maintaining it.
For the discussion on version 1, see [2]
Unfortunately, Karsten Keil as the maintainer has not participated in
the discussion.
Arnd
[1] https://patchwork.kernel.org/patch/8484861/#17900371
[2] https://listserv.isdn4linux.de/pipermail/isdn4linux/2019-April/thread.html
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
memory.stat and other files already consider subtrees in their output, and
we should too in order to not present an inconsistent interface.
The current situation is fairly confusing, because people interacting with
cgroups expect hierarchical behaviour in the vein of memory.stat,
cgroup.events, and other files. For example, this causes confusion when
debugging reclaim events under low, as currently these always read "0" at
non-leaf memcg nodes, which frequently causes people to misdiagnose breach
behaviour. The same confusion applies to other counters in this file when
debugging issues.
Aggregation is done at write time instead of at read-time since these
counters aren't hot (unlike memory.stat which is per-page, so it does it
at read time), and it makes sense to bundle this with the file
notifications.
After this patch, events are propagated up the hierarchy:
[root@ktst ~]# cat /sys/fs/cgroup/system.slice/memory.events
low 0
high 0
max 0
oom 0
oom_kill 0
[root@ktst ~]# systemd-run -p MemoryMax=1 true
Running as unit: run-r251162a189fb4562b9dabfdc9b0422f5.service
[root@ktst ~]# cat /sys/fs/cgroup/system.slice/memory.events
low 0
high 0
max 7
oom 1
oom_kill 1
As this is a change in behaviour, this can be reverted to the old
behaviour by mounting with the `memory_localevents' flag set. However, we
use the new behaviour by default as there's a lack of evidence that there
are any current users of memory.events that would find this change
undesirable.
akpm: this is a behaviour change, so Cc:stable. THis is so that
forthcoming distros which use cgroup v2 are more likely to pick up the
revised behaviour.
Link: http://lkml.kernel.org/r/20190208224419.GA24772@chrisdown.name
Signed-off-by: Chris Down <chris@chrisdown.name>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jason A. Donenfeld