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Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
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This was added in commit 32751c901728 ("backport: add crypto skcipher
interface"), but all the drivers which need it were deactivated in
commit cdcec8e6128 ("backports: disable things needing LIB80211 unless
SKCIPHER can exist") because it does not compile any more. Remove this
code now completely from the tree.
lib80211 does not use skcipher any more, but directly uses the crpyto
API. since kernel 4.20.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Replace all the different nested versions of generic netlink
backport with a single one, covering from < 3.13 all the way
to the upcoming netlink policy improvements in 4.20.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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With kernels < 3.17, we need to include hrtimer.h to get ktime_divns()
for the ktime_get_boottime_seconds() backport. But we can't just
include htrtimer.h in the backport timekeeping.h because we run into
some cyclical inclusions that cause problems. To solve that make
ktime_get_boottime_seconds() non-inline and add it to a new
backport-4.18.c file.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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linux-stable 4fa8bc949de11c99ee2433c602d43f87c452f4f2 renamed
*-asn1.[ch] files to *.asn1.[ch]. Make the corresponding change
for backports.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The verification code has some large data variables that are allocated
in the stack. Increase the maximum stack frame size in the compiler
check slightly (from 1024 to 1280) to prevent harmless warnings.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The previous backport just made the code compatible, but removed
the extack functionality entirely.
By ignoring the setsockopt() and just assuming that userspace does
in fact support extack (which is true for all of wifi and in fact
all users of libnl), we can support full extack functionality even
on kernels that don't support it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This never actually worked properly as far as I can tell,
and now it looks like it won't even compile due to the
real crypto_memneq() backport.
Just remove it - distro kernels have it enabled and all
others should just enable it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Uh, this was awful. Because the crypto/ things are completely
impossible to backport, I've actually implemented this by using
mbedtls and embedding the relevant functions it has...
The mbedtls code is taken from mbedtls version 2.6.0 and only
minimally modified (mostly to remove <string.h> and similar).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This function was added in kernel 4.10 and is needed by the usbnet
drivers.
These functions were added in upstream commit: bc8ee596afe8f3 ("net:
mii: add generic function to support ksetting support")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There were some changes and additions in kernel 3.9 and again in 3.11.
Add the needed backports accordingly.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Since commit 1068c678f "rhashtable: accept GFP flags in
rhashtable_walk_init" rhashtable_walk_init() takes an additional
parameter which is also used by the mac80211 code, so backport the
function. For kernel < 4.1 this is not needed, because we already ship
a recent version of rhashtable. Add rhashtable_walk_init() instead of
adding the complete rhashtable to same some space on recent kernel
versions.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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kstrtobool was added in Linux commit a21d167dc "lib: move strtobool()
to kstrtobool()".
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This adds the crypto skcipher interface which was added in Linux commit
7a7ffe65c8c5f "crypto: skcipher - Add top-level skcipher interface" to
backports.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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The media backports are not used by so many users in my opinion and to
reduce the efforts needed to make the new changes to media introduced
by new kernel versions work on older kernel versions just make it
depend on kernel 3.8 and do not support all the older kernel versions
for media any more. This makes it possible to remove some patches and
other changes.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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The prototype for this function is changing upstream, so backport
a copy of the new one that has a bool * argument instead of u32 *.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
[debugfs_{read,write}_file_bool() is in kernel 4.3, do not add it there]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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seq_hex_dump() is needed by the wil6210 driver and was added in this
commit:
commit 96e6df4cfc6ecf91097eb8eec55983a5f102a477
Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri Jul 24 09:11:53 2015 +1000
seq_file: provide an analogue of print_hex_dump()
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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The get_user_pages_locked() function is needed by the frame vector code
which will be added in the next patch. While adding that, this patch
also replaces the get_user_pages_unlocked() function with the original
version from the next kernel.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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mac80211 makes use of the new AEAD crypto api since commit 957e0fe629.
This patch provides a backport layer which converts the new API to the
old one used in older kernel versions. This backport is based on this
mainline commit: 996d98d85.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Johannes Berg <johannes.berg@intel.com>
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This is required by igb and possibly other network drivers.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
[change to EXPORT_SYMBOL_GPL]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This is needed by bluetooth.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This enables support for using the backports project
to integrate device drivers from a future version of Linux
into an older version of Linux. What you end up seeing is
a backports submenu when configuring your kernel and the
ability to select specific device drivers from subsystems
supported through the Linux backports project.
At this time enabling one device driver from a future version
of Linux will require using only the latest version of the
subsystem modules and other subsystem drivers. For example
enabling cfg80211 and mac80211 from a future version of Linux
will require you to only use future version of the respective
device drivers. In order to enable the backported version of
802.11 drivers for example, you will have to enable first:
Networking support -->
Wireless -->
But under that menu disable all options, then jump to the backports
submenu to now enable:
Backports -->
cfg80211
mac80211
Wireless LAN --->
etc
You build these device drivers modular or built-in to the kernel.
Integration support requires only slight modifications to the original
kernel sources, one to the top level Kconfig to add our entry, and also
the top level Makefile to enable backports code to be part of the
built-in vmlinux.
Support for integration takes advantage over the existing infrastructure
added by Johannes to keep track of each indvidual change done by the
backports infrastructure if --gitdebug is used.
mcgrof@drvbp1 ~/backports (git::master)$ time ./gentree.py --clean \
/home/mcgrof/linux-next /home/mcgrof/build/backports-20141023
Copy original source files ...
Applying patches from patches to /home/mcgrof/build/backports-20141023
...
Modify Kconfig tree ...
Rewrite Makefiles and Kconfig files ...
Done!
real 1m27.942s
user 13m23.752s
sys 0m47.608s
1 3.0.101 [ OK ]
2 3.1.10 [ OK ]
3 3.2.62 [ OK ]
4 3.3.8 [ OK ]
5 3.4.104 [ OK ]
6 3.5.7 [ OK ]
7 3.6.11 [ OK ]
8 3.7.10 [ OK ]
9 3.8.13 [ OK ]
10 3.9.11 [ OK ]
11 3.10.58 [ OK ]
12 3.11.10 [ OK ]
13 3.12.31 [ OK ]
14 3.13.11 [ OK ]
15 3.14.22 [ OK ]
16 3.15.10 [ OK ]
17 3.16.6 [ OK ]
18 3.17.1 [ OK ]
19 3.18-rc1 [ OK ]
real 42m44.838s
user 1190m5.092s
sys 140m37.208s
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
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The CPTCFG_ prefix already implies backport, when integration
is used we'd end up with a double BACKPORT_ prefix, so just
remove the existing one as its not needed.
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
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Things we backport are now prefixed with BACKPORT_, when we copy
over libraries with the c-files / h-files trick on the compat/Kconfig
trick we prefix these with BACKPORT_ already so in order to help
distinguish them use BACKPORT_BPAUTO_ for them and prevent a double
BACKPORT_ prefix.
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
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Instead of using the code from a recent kernel, I used the old code
from the igb driver to calculate the header length. The new code in the
kernel makes use of some __skb_flow_dissect() functions and headers not
available in 3.0.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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In kernel version < 3.17 wait_on_bit() takes an action as a parameter,
which contains a schedule() or io_schedule() call in most cases. For
such calls wait_on_bit() was changed to not take an action but execute
schedule() action. This patch backports the new behavior to old kernel
versions.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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mcgrof@drvbp1 ~/backports (git::master)$ time ./gentree.py --clean
/home/mcgrof/linux-next /home/mcgrof/build/next-20140409
Copy original source files ...
Apply patches ...
Modify Kconfig tree ...
Rewrite Makefiles and Kconfig files ...
Done!
real 1m30.186s
user 9m25.180s
sys 0m24.428s
mcgrof@drvbp1 ~/build/next-20140409 $ time ckmake --allyesconfig
1 3.0.101 [ OK ]
2 3.1.10 [ OK ]
3 3.2.54 [ OK ]
4 3.3.8 [ OK ]
5 3.4.79 [ OK ]
6 3.5.7 [ OK ]
7 3.6.11 [ OK ]
8 3.7.10 [ OK ]
9 3.8.13 [ OK ]
10 3.9.11 [ OK ]
11 3.10.29 [ OK ]
12 3.11.10 [ OK ]
13 3.12.10 [ OK ]
14 3.13.2 [ OK ]
15 3.14-rc1 [ OK ]
real 26m54.859s
user 744m15.764s
sys 83m47.440s
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
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This seems to commonly be missing in the random kernels
people use, so just provide a backport.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
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This is needed by drivers/regulator/fixed.c
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This is needed by drivers/net/wireless/ath/wil6210/pcie_bus.c
pci_enable_msi_block() was added in kernel 2.6.30, so this does not
work on older kernel versions.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Instead of using an own version of sch_fq_codel.c make backports copy
that code from the kernel and use that. This ensures that we will
always use the latest version.
This also includes flow_dissector.c which provides a function used by
sch_fq_codel.c.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Instead of using an own version of sch_codel.c make backports copy that
code from the kernel and use that. This ensures that we will always use
the latest version.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Instead of using an own version of cordic.c make backports copy that
code from the kernel and use that. This ensures that we will always use
the latest version.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This is not used by any driver any more. brcmsmac was the only driver
selecting this, but did not used it since some months, now it does not
even select it any more.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This changed from not having a return value to having one,
so backport the version that has it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This backports the following commit from mainline:
commit b33e46bcdc4e598d738ed12a5a7906be4e11d786
Author: Mark Brown <broonie@linaro.org>
Date: Sat Aug 31 11:58:26 2013 +0100
regulator: core: Provide managed regulator registration
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This was only needed for some of the DRM drivers, remove it.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This was only needed for some of the DRM drivers, remove it.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This was only needed for some of the DRM drivers, remove it.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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This was only needed for some of the DRM drivers, remove it.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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By requiring 2.6.25 we can get rid of quite a lot of backport work.
2.6.25 was released more than five years ago (April 2011) and wasn't
a long-term kernel either, so there's little point in supporting it
now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
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This backports cross-device reservation support.
Given that this feature is built around the
CONFIG_DMA_SHARED_BUFFER and given that some older kernels
will have DMA_SHARED_BUFFER without cross device reservation
support we can't use the c-file and h-file backports Kconfig
trick to automatically backport this feature from the
target git tree.
commit 786d7257e537da0674c02e16e3b30a44665d1cee
Author: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Date: Thu Jun 27 13:48:16 2013 +0200
reservation: cross-device reservation support, v4
This adds support for a generic reservations framework that can be
hooked up to ttm and dma-buf and allows easy sharing of reservations
across devices.
The idea is that a dma-buf and ttm object both will get a pointer
to a struct reservation_object, which has to be reserved before
anything is done with the contents of the dma-buf.
Changes since v1:
- Fix locking issue in ticket_reserve, which could cause
mutex_unlock
to be called too many times.
Changes since v2:
- All fence related calls and members have been taken out for now,
what's left is the bare minimum to be useful for ttm locking conversion.
Changes since v3:
- Removed helper functions too. The documentation has an example
implementation for locking. With the move to ww_mutex there is no
need to have much logic any more.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: maarten.lankhorst@canonical.com
Cc: jglisse@redhat.com
Cc: airlied@redhat.com
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
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This backports the kernel's wound/wait style locks 040a0a371,
using the linux-stable v3.11-rc2 as a base for development.
Given the complexity to support debugging mutexes this backport
implementation is simplified by only making this feature availabe
if you to have DEBUG_MUTEXES and DEBUG_LOCK_ALLOC disabled.
Given that ww mutex is required for DRM this also means we must
update the kconfig for DRM and require you to also not be able to build
DRM if you have either of these options enabled. Support for
DEBUG_MUTEXES and DEBUG_LOCK_ALLOC can be added later by anyone
daring. This uses the new dependencies file kconfig language
extension to specify the backport feature build restrictions
for DRM.
Part of the ww mutex addition to the kernel required modifying
the fast path mutex locking scheme by requiring you to deal
with the slow path alternatives on your own (refer to a41b56ef).
The reason for this change was that the mutex fastpath implementation
assumed your slowpath alternative can only be passed one argument
and the addition of ww mutexes requires dealing with the slow
path with a context passed.
It'd be painful to backport all asm for an optimized fastpath
implementation so we penalize the backport ww mutex fast path
by using the generic atomic_dec_return().
To backport a clean our own mutex_lock_common() with the least
amount of changes against upstream commits 2bd2c92c and 41fcb9f2
also needed to be backported. Commit 2bd2c92c dealt with adding
support for queue mutex spinners with an MCS lock, since this
cannot be backported for older kernels we provide empty inlines.
Commit 41fcb9f2 just removed SCHED_FEAT_OWNER_SPIN as it was an
early hack, the only thing required to backport this commit was
to provide an alternative declaration for mutex_spin_on_owner()
as it was declared non-inline for older kernels.
Finally c5491ea7 required backporting schedule_preempt_disabled()
as well but that just consisted of carrying over the original
implementation. Since its not exported we need to reimplement
it to make it available to our internal core ww mutex port.
mcgrof@frijol ~/linux-stable (git::master)$ git describe --contains 040a0a371
v3.11-rc1~147^2~5
mcgrof@frijol ~/linux-stable (git::master)$ git describe --contains a41b56ef
v3.11-rc1~147^2~6
mcgrof@frijol ~/linux-stable (git::master)$ git describe --contains 2bd2c92c
v3.10-rc1~200^2~3
mcgrof@frijol ~/linux-stable (git::master)$ git describe --contains 41fcb9f2
v3.10-rc1~200^2~5
mcgrof@frijol ~/linux-stable (git::master)$ git describe --contains c5491ea7
v3.4-rc1~3^2~27
commit 040a0a37100563754bb1fee6ff6427420bcfa609
Author: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Mon Jun 24 10:30:04 2013 +0200
mutex: Add support for wound/wait style locks
Wound/wait mutexes are used when other multiple lock
acquisitions of a similar type can be done in an arbitrary
order. The deadlock handling used here is called wait/wound in
the RDBMS literature: The older tasks waits until it can acquire
the contended lock. The younger tasks needs to back off and drop
all the locks it is currently holding, i.e. the younger task is
wounded.
For full documentation please read Documentation/ww-mutex-design.txt.
References: https://lwn.net/Articles/548909/
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: rostedt@goodmis.org
Cc: daniel@ffwll.ch
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/51C8038C.9000106@canonical.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
commit a41b56efa70e060f650aeb54740aaf52044a1ead
Author: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Thu Jun 20 13:31:05 2013 +0200
arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not
This will allow me to call functions that have multiple
arguments if fastpath fails. This is required to support ticket
mutexes, because they need to be able to pass an extra argument
to the fail function.
Originally I duplicated the functions, by adding
__mutex_fastpath_lock_retval_arg. This ended up being just a
duplication of the existing function, so a way to test if
fastpath was called ended up being better.
This also cleaned up the reservation mutex patch some by being
able to call an atomic_set instead of atomic_xchg, and making it
easier to detect if the wrong unlock function was previously
used.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: robclark@gmail.com
Cc: rostedt@goodmis.org
Cc: daniel@ffwll.ch
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20130620113105.4001.83929.stgit@patser
Signed-off-by: Ingo Molnar <mingo@kernel.org>
commit 2bd2c92cf07cc4a373bf316c75b78ac465fefd35
Author: Waiman Long <Waiman.Long@hp.com>
Date: Wed Apr 17 15:23:13 2013 -0400
mutex: Queue mutex spinners with MCS lock to reduce cacheline contention
<-- snip -->
commit 41fcb9f230bf773656d1768b73000ef720bf00c3
Author: Waiman Long <Waiman.Long@hp.com>
Date: Wed Apr 17 15:23:11 2013 -0400
mutex: Move mutex spinning code from sched/core.c back to mutex.c
<-- snip -->
commit c5491ea779793f977d282754db478157cc409d82
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Mon Mar 21 12:09:35 2011 +0100
sched/rt: Add schedule_preempt_disabled()
<-- snip -->
Cc: maarten.lankhorst@canonical.com
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: rostedt@goodmis.org
Cc: daniel@ffwll.ch
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
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This includes the following functions needed by some drm drivers:
arch_phys_wc_add()
arch_phys_wc_del()
phys_wc_to_mtrr_index()
This backports the following commit form mainline kernel:
commit d0d98eedee2178c803dd824bb09f52b0e2ac1811
Author: Andy Lutomirski <luto@amacapital.net>
Date: Mon May 13 23:58:40 2013 +0000
Add arch_phys_wc_{add, del} to manipulate WC MTRRs if needed
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
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This is required by some drivers as of next-20130424.
commit fcf371ee5624cc87abac205cd0dad2432d7f0346
Author: Axel Lin <axel.lin@ingics.com>
Date: Thu Apr 18 10:34:49 2013 +0800
regulator: core: Add regulator_map_voltage_ascend() API
A lot of regulator hardware has ascendant voltage list.
This patch adds regulator_map_voltage_ascend() and export it.
Drivers that have ascendant voltage list can use this as their map_voltage()
operation, this is more efficient than default regulator_map_voltage_iterate()
function.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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