Tejun Heo [Fri, 11 Jan 2013 21:06:34 +0000 (13:06 -0800)]
block: add @req to bio_{front|back}_merge tracepoints
bio_{front|back}_merge tracepoints report a bio merging into an
existing request but didn't specify which request the bio is being
merged into. Add @req to it. This makes it impossible to share the
event template with block_bio_queue - split it out.
@req isn't used or exported to userland at this point and there is no
userland visible behavior change. Later changes will make use of the
extra parameter.
bio completion didn't kick block_bio_complete TP. Only dm was
explicitly triggering the TP on IO completion. This makes
block_bio_complete TP useless for tracers which want to know about
bios, and all other bio based drivers skip generating blktrace
completion events.
This patch makes all bio completions via bio_endio() generate
block_bio_complete TP.
* Explicit trace_block_bio_complete() invocation removed from dm and
the trace point is unexported.
* @rq dropped from trace_block_bio_complete(). bios may fly around
w/o queue associated. Verifying and accessing the assocaited queue
belongs to TP probes.
* blktrace now gets both request and bio completions. Make it ignore
bio completions if request completion path is happening.
This makes all bio based drivers generate blktrace completion events
properly and makes the block_bio_complete TP actually useful.
v2: With this change, block_bio_complete TP could be invoked on sg
commands which have bio's with %NULL bi_bdev. Update TP
assignment code to check whether bio->bi_bdev is %NULL before
dereferencing.
Signed-off-by: Tejun Heo <tj@kernel.org> Original-patch-by: Namhyung Kim <namhyung@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Alasdair Kergon <agk@redhat.com> Cc: dm-devel@redhat.com Cc: Neil Brown <neilb@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jianpeng Ma [Fri, 11 Jan 2013 13:46:09 +0000 (14:46 +0100)]
block: Remove should_sort judgement when flush blk_plug
In commit 975927b942c932,it add blk_rq_pos to sort rq when flushing.
Although this commit was used for the situation which blk_plug handled
multi devices on the same time like md device.
I think there must be some situations like this but only single
device.
So remove the should_sort judgement.
Because the parameter should_sort is only for this purpose,it can delete
should_sort from blk_plug.
CC: Shaohua Li <shli@kernel.org> Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Sasha Levin [Mon, 17 Dec 2012 15:01:27 +0000 (10:01 -0500)]
block,elevator: use new hashtable implementation
Switch elevator to use the new hashtable implementation. This reduces the
amount of generic unrelated code in the elevator.
This also removes the dymanic allocation of the hash table. The size of the table is
constant so there's no point in paying the price of an extra dereference when accessing
it.
This patch depends on d9b482c ("hashtable: introduce a small and naive
hashtable") which was merged in v3.6.
Linus Torvalds [Wed, 9 Jan 2013 16:58:57 +0000 (08:58 -0800)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King.
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7616/1: cache-l2x0: aurora: Use writel_relaxed instead of writel
ARM: 7615/1: cache-l2x0: aurora: Invalidate during clean operation with WT enable
ARM: 7614/1: mm: fix wrong branch from Cortex-A9 to PJ4b
ARM: 7612/1: imx: Do not select some errata that depends on !ARCH_MULTIPLATFORM
ARM: 7611/1: VIC: fix bug in VIC irqdomain code
ARM: 7610/1: versatile: bump IRQ numbers
ARM: 7609/1: disable errata work-arounds which access secure registers
ARM: 7608/1: l2x0: Only set .set_debug on PL310 r3p0 and earlier
Linus Torvalds [Wed, 9 Jan 2013 16:43:56 +0000 (08:43 -0800)]
Merge tag 'edac_fixes_for_3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC fixes from Borislav Petkov:
"Two error path fixes causing a crash and a Kconfig fix for an issue
which spilled all EDAC suboptions into the 'Device Drivers' menu."
* tag 'edac_fixes_for_3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC: Cleanup device deregistering path
EDAC: Fix EDAC Kconfig menu
EDAC: Fix kernel panic on module unloading
The check for a pmd being in the process of being split was dropped by
mistake by commit d10e63f29488 ("mm: numa: Create basic numa page
hinting infrastructure"). Put it back.
Reported-by: Dave Jones <davej@redhat.com> Debugged-by: Hillf Danton <dhillf@gmail.com> Acked-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Mel Gorman <mgorman@suse.de> Cc: Kirill Shutemov <kirill@shutemov.name> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marc Dionne [Wed, 9 Jan 2013 14:16:30 +0000 (14:16 +0000)]
cred: Remove tgcred pointer from struct cred
Commit 3a50597de863 ("KEYS: Make the session and process keyrings
per-thread") removed the definition of the thread_group_cred structure,
but left a now unused pointer in struct cred.
Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Unfortunately, at this point, there's no way to make the existing
statistics hierarchical without creating nasty surprises for the
existing users. Just create recursive counterpart of the existing
stats.
Tejun Heo [Wed, 9 Jan 2013 16:05:13 +0000 (08:05 -0800)]
cfq-iosched: collect stats from dead cfqgs
To support hierarchical stats, it's necessary to remember stats from
dead children. Add cfqg->dead_stats and make a dying cfqg transfer
its stats to the parent's dead-stats.
The transfer happens form ->pd_offline_fn() and it is possible that
there are some residual IOs completing afterwards. Currently, we lose
these stats. Given that cgroup removal isn't a very high frequency
operation and the amount of residual IOs on offline are likely to be
nil or small, this shouldn't be a big deal and the complexity needed
to handle residual IOs - another callback and rather elaborate
synchronization to reach and lock the matching q - doesn't seem
justified.
Tejun Heo [Wed, 9 Jan 2013 16:05:13 +0000 (08:05 -0800)]
cfq-iosched: separate out cfqg_stats_reset() from cfq_pd_reset_stats()
Separate out cfqg_stats_reset() which takes struct cfqg_stats * from
cfq_pd_reset_stats() and move the latter to where other pd methods are
defined. cfqg_stats_reset() will be used to implement hierarchical
stats.
Tejun Heo [Wed, 9 Jan 2013 16:05:13 +0000 (08:05 -0800)]
blkcg: make blkcg_print_blkgs() grab q locks instead of blkcg lock
Instead of holding blkcg->lock while walking ->blkg_list and executing
prfill(), RCU walk ->blkg_list and hold the blkg's queue lock while
executing prfill(). This makes prfill() implementations easier as
stats are mostly protected by queue lock.
This will be used to implement hierarchical stats.
Tejun Heo [Wed, 9 Jan 2013 16:05:12 +0000 (08:05 -0800)]
blkcg: implement blkg_[rw]stat_recursive_sum() and blkg_[rw]stat_merge()
Implement blkg_[rw]stat_recursive_sum() and blkg_[rw]stat_merge().
The former two collect the [rw]stats designated by the target policy
data and offset from the pd's subtree. The latter two add one
[rw]stat to another.
Note that the recursive sum functions require the queue lock to be
held on entry to make blkg online test reliable. This is necessary to
properly handle stats of a dying blkg.
These will be used to implement hierarchical stats.
Tejun Heo [Wed, 9 Jan 2013 16:05:12 +0000 (08:05 -0800)]
blkcg: implement blkcg_policy->on/offline_pd_fn() and blkcg_gq->online
Add two blkcg_policy methods, ->online_pd_fn() and ->offline_pd_fn(),
which are invoked as the policy_data gets activated and deactivated
while holding both blkcg and q locks.
Also, add blkcg_gq->online bool, which is set and cleared as the
blkcg_gq gets activated and deactivated. This flag also is toggled
while holding both blkcg and q locks.
These will be used to implement hierarchical stats.
Tejun Heo [Wed, 9 Jan 2013 16:05:11 +0000 (08:05 -0800)]
cfq-iosched: enable full blkcg hierarchy support
With the previous two patches, all cfqg scheduling decisions are based
on vfraction and ready for hierarchy support. The only thing which
keeps the behavior flat is cfqg_flat_parent() which makes vfraction
calculation consider all non-root cfqgs children of the root cfqg.
Replace it with cfqg_parent() which returns the real parent. This
enables full blkcg hierarchy support for cfq-iosched. For example,
consider the following hierarchy.
root
/ \
A:500 B:250
/ \
AA:500 AB:1000
For simplicity, let's say all the leaf nodes have active tasks and are
on service tree. For each leaf node, vfraction would be
Tejun Heo [Wed, 9 Jan 2013 16:05:11 +0000 (08:05 -0800)]
cfq-iosched: convert cfq_group_slice() to use cfqg->vfraction
cfq_group_slice() calculates slice by taking a fraction of
cfq_target_latency according to the ratio of cfqg->weight against
service_tree->total_weight. This currently works only because all
cfqgs are treated to be at the same level.
To prepare for proper hierarchy support, convert cfq_group_slice() to
base the calculation on cfqg->vfraction. As cfqg->vfraction is always
a fraction of 1 and represents the fraction allocated to the cfqg with
hierarchy considered, the slice can be simply calculated by
multiplying cfqg->vfraction to cfq_target_latency (with fixed point
shift factored in).
As vfraction calculation currently treats all non-root cfqgs as
children of the root cfqg, this patch doesn't introduce noticeable
behavior difference.
Currently, cfqg charges are scaled directly according to cfqg->weight.
Regardless of the number of active cfqgs or the amount of active
weights, a given weight value always scales charge the same way. This
works fine as long as all cfqgs are treated equally regardless of
their positions in the hierarchy, which is what cfq currently
implements. It can't work in hierarchical settings because the
interpretation of a given weight value depends on where the weight is
located in the hierarchy.
This patch reimplements cfqg charge scaling so that it can be used to
support hierarchy properly. The scheme is fairly simple and
light-weight.
* When a cfqg is added to the service tree, v(disktime)weight is
calculated. It walks up the tree to root calculating the fraction
it has in the hierarchy. At each level, the fraction can be
calculated as
cfqg->weight / parent->level_weight
By compounding these, the global fraction of vdisktime the cfqg has
claim to - vfraction - can be determined.
* When the cfqg needs to be charged, the charge is scaled inversely
proportionally to the vfraction.
The new scaling scheme uses the same CFQ_SERVICE_SHIFT for fixed point
representation as before; however, the smallest scaling factor is now
1 (ie. 1 << CFQ_SERVICE_SHIFT). This is different from before where 1
was for CFQ_WEIGHT_DEFAULT and higher weight would result in smaller
scaling factor.
While this shifts the global scale of vdisktime a bit, it doesn't
change the relative relationships among cfqgs and the scheduling
result isn't different.
cfq_group_notify_queue_add uses fixed CFQ_IDLE_DELAY when appending
new cfqg to the service tree. The specific value of CFQ_IDLE_DELAY
didn't have any relevance to vdisktime before and is unlikely to cause
any visible behavior difference now especially as the scale shift
isn't that large.
As the new scheme now makes proper distinction between cfqg->weight
and ->leaf_weight, reverse the weight aliasing for root cfqgs. For
root, both weights are now mapped to ->leaf_weight instead of the
other way around.
Because we're still using cfqg_flat_parent(), this patch shouldn't
change the scheduling behavior in any noticeable way.
v2: Beefed up comments on vfraction as requested by Vivek.
Tejun Heo [Wed, 9 Jan 2013 16:05:11 +0000 (08:05 -0800)]
cfq-iosched: implement cfq_group->nr_active and ->children_weight
To prepare for blkcg hierarchy support, add cfqg->nr_active and
->children_weight. cfqg->nr_active counts the number of active cfqgs
at the cfqg's level and ->children_weight is sum of weights of those
cfqgs. The level covers itself (cfqg->leaf_weight) and immediate
children.
The two values are updated when a cfqg enters and leaves the group
service tree. Unless the hierarchy is very deep, the added overhead
should be negligible.
Currently, the parent is determined using cfqg_flat_parent() which
makes the root cfqg the parent of all other cfqgs. This is to make
the transition to hierarchy-aware scheduling gradual. Scheduling
logic will be converted to use cfqg->children_weight without actually
changing the behavior. When everything is ready,
blkcg_weight_parent() will be replaced with proper parent function.
This patch doesn't introduce any behavior chagne.
v2: s/cfqg->level_weight/cfqg->children_weight/ as per Vivek.
Tejun Heo [Wed, 9 Jan 2013 16:05:10 +0000 (08:05 -0800)]
cfq-iosched: add leaf_weight
cfq blkcg is about to grow proper hierarchy handling, where a child
blkg's weight would nest inside the parent's. This makes tasks in a
blkg to compete against both tasks in the sibling blkgs and the tasks
of child blkgs.
We're gonna use the existing weight as the group weight which decides
the blkg's weight against its siblings. This patch introduces a new
weight - leaf_weight - which decides the weight of a blkg against the
child blkgs.
It's named leaf_weight because another way to look at it is that each
internal blkg nodes have a hidden child leaf node which contains all
its tasks and leaf_weight is the weight of the leaf node and handled
the same as the weight of the child blkgs.
This patch only adds leaf_weight fields and exposes it to userland.
The new weight isn't actually used anywhere yet. Note that
cfq-iosched currently offcially supports only single level hierarchy
and root blkgs compete with the first level blkgs - ie. root weight is
basically being used as leaf_weight. For root blkgs, the two weights
are kept in sync for backward compatibility.
v2: cfqd->root_group->leaf_weight initialization was missing from
cfq_init_queue() causing divide by zero when
!CONFIG_CFQ_GROUP_SCHED. Fix it. Reported by Fengguang.
Tejun Heo [Wed, 9 Jan 2013 16:05:10 +0000 (08:05 -0800)]
blkcg: make blkcg_gq's hierarchical
Currently a child blkg (blkcg_gq) can be created even if its parent
doesn't exist. ie. Given a blkg, it's not guaranteed that its
ancestors will exist. This makes it difficult to implement proper
hierarchy support for blkcg policies.
Always create blkgs recursively and make a child blkg hold a reference
to its parent. blkg->parent is added so that finding the parent is
easy. blkcg_parent() is also added in the process.
This change can be visible to userland. e.g. while issuing IO in a
nested cgroup didn't affect the ancestors at all, now it will
initialize all ancestor blkgs and zero stats for the request_queue
will always appear on them. While this is userland visible, this
shouldn't cause any functional difference.
Tejun Heo [Wed, 9 Jan 2013 16:05:10 +0000 (08:05 -0800)]
blkcg: reorganize blkg_lookup_create() and friends
Reorganize such that
* __blkg_lookup() takes bool param @update_hint to determine whether
to update hint.
* __blkg_lookup_create() no longer performs lookup before trying to
create. Renamed to blkg_create().
* blkg_lookup_create() now performs lookup and then invokes
blkg_create() if lookup fails.
* root_blkg creation in blkcg_activate_policy() updated accordingly.
Note that blkcg_activate_policy() no longer updates lookup hint if
root_blkg already exists.
Except for the last lookup hint bit which is immaterial, this is pure
reorganization and doesn't introduce any visible behavior change.
This is to prepare for proper hierarchy support.
Tejun Heo [Wed, 9 Jan 2013 16:05:10 +0000 (08:05 -0800)]
blkcg: fix minor bug in blkg_alloc()
blkg_alloc() was mistakenly checking blkcg_policy_enabled() twice.
The latter test should have been on whether pol->pd_init_fn() exists.
This doesn't cause actual problems because both blkcg policies
implement pol->pd_init_fn(). Fix it.
Vivek Goyal [Wed, 3 Oct 2012 20:57:01 +0000 (16:57 -0400)]
cfq-iosched: Print sync-noidle information in blktrace messages
Currently we attach a character "S" or "A" to the cfqq<pid>, to represent
whether queues is sync or async. Add one more character "N" to represent
whether it is sync-noidle queue or sync queue. So now three different
type of queues will look as follows.
Previously S/A classification was being printed only if group scheduling
was enabled. This patch also makes sure that this classification is
displayed even if group idling is disabled.
Vivek Goyal [Wed, 3 Oct 2012 20:57:00 +0000 (16:57 -0400)]
cfq-iosched: Get rid of unnecessary local variable
Use of local varibale "n" seems to be unnecessary. Remove it. This brings
it inline with function __cfq_group_st_add(), which is also doing the
similar operation of adding a group to a rb tree.
Vivek Goyal [Wed, 3 Oct 2012 20:56:59 +0000 (16:56 -0400)]
cfq-iosched: Rename few functions related to selecting workload
choose_service_tree() selects/sets both wl_class and wl_type. Rename it to
choose_wl_class_and_type() to make it very clear.
cfq_choose_wl() only selects and sets wl_type. It is easy to confuse
it with choose_st(). So rename it to cfq_choose_wl_type() to make
it clear what does it do.
Vivek Goyal [Wed, 3 Oct 2012 20:56:57 +0000 (16:56 -0400)]
cfq-iosched: More renaming to better represent wl_class and wl_type
Some more renaming. Again making the code uniform w.r.t use of
wl_class/class to represent IO class (RT, BE, IDLE) and using
wl_type/type to represent subclass (SYNC, SYNC-IDLE, ASYNC).
At places this patch shortens the string "workload" to "wl".
Renamed "saved_workload" to "saved_wl_type". Renamed
"saved_serving_class" to "saved_wl_class".
For uniformity with "saved_wl_*" variables, renamed "serving_class"
to "serving_wl_class" and renamed "serving_type" to "serving_wl_type".
Again, just trying to improve upon code uniformity and improve
readability. No functional change.
v2:
- Restored the usage of keyword "service" based on Jeff Moyer's feedback.
Vivek Goyal [Wed, 3 Oct 2012 20:56:56 +0000 (16:56 -0400)]
cfq-iosched: Properly name all references to IO class
Currently CFQ has three IO classes, RT, BE and IDLE. At many a places we
are calling workloads belonging to these classes as "prio". This gets
very confusing as one starts to associate it with ioprio.
So this patch just does bunch of renaming so that reading code becomes
easier. All reference to RT, BE and IDLE workload are done using keyword
"class" and all references to subclass, SYNC, SYNC-IDLE, ASYNC are made
using keyword "type".
This makes me feel much better while I am reading the code. There is no
functionality change due to this patch.
Linus Torvalds [Wed, 9 Jan 2013 02:53:56 +0000 (18:53 -0800)]
Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"People are back from the holiday breaks, and it shows. Here are a
bunch of fixes for a number of platforms:
- A couple of small fixes for Nomadik
- A larger set of changes for kirkwood/mvebu
- uart driver selection, dt clocks, gpio-poweroff fixups, a few
__init annotation fixes and some error handling improvement in
their xor dma driver.
- i.MX had a couple of minor fixes (and a critical one for flexcan2
clock setup)
- MXS has a small board fix and a framebuffer bugfix
- A set of fixes for Samsung Exynos, fixing default bootargs and some
Exynos5440 clock issues
- A set of OMAP changes including PM fixes and a few sparse warning
fixups
All in all a bit more positive code delta than we'd ideally want to
see here, mostly from the OMAP PM changes, but nothing overly crazy."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits)
ARM: clps711x: Fix bad merge of clockevents setup
ARM: highbank: save and restore L2 cache and GIC on suspend
ARM: highbank: add a power request clear
ARM: highbank: fix secondary boot and hotplug
ARM: highbank: fix typos with hignbank in power request functions
ARM: dts: fix highbank cpu mpidr values
ARM: dts: add device_type prop to cpu nodes on Calxeda platforms
ARM: mx5: Fix MX53 flexcan2 clock
ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array
pinctrl: mvebu: make pdma clock on dove mandatory
ARM: Dove: Add pinctrl clock to DT
dma: mv_xor: fix error handling for clocks
dma: mv_xor: fix error handling of mv_xor_channel_add()
arm: mvebu: Add missing ; for cpu node.
arm: mvebu: Armada XP MV78230 has only three Ethernet interfaces
arm: mvebu: Armada XP MV78230 has two cores, not one
clk: mvebu: Remove inappropriate __init tagging
ARM: Kirkwood: Use fixed-regulator instead of board gpio call
ARM: Kirkwood: Fix missing sdio clock
ARM: Kirkwood: Switch TWSI1 of 88f6282 to DT clock providers
...
Linus Torvalds [Wed, 9 Jan 2013 00:08:10 +0000 (16:08 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm update from Dave Airlie:
"Exynos and Radeon mostly, with a dma-buf and ttm fix thrown in.
It's a bit big but its mostly exynos license fix ups and I'd rather
not hold those up since its legally stuff.
Radeon has a couple of fixes from dma engine work, TTM is just a
locking fix, and dma-buf fix has been hanging around and I finally got
a chance to review it."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (30 commits)
drm/ttm: fix fence locking in ttm_buffer_object_transfer
drm/prime: drop reference on imported dma-buf come from gem
drm/radeon: add quirk for d3 delay during switcheroo poweron for apple macbooks
drm/exynos: move finish page flip to a common place
drm/exynos: fimd: modify condition in fimd resume
drm/radeon: fix DMA CS parser for r6xx linear copy packet
drm/radeon: split r6xx and r7xx copy_dma functions
drm/exynos: Use devm_clk_get in exynos_drm_gsc.c
drm/exynos: Remove redundant NULL check in exynos_drm_gsc.c
drm/exynos: Remove explicit freeing using devm_* APIs in exynos_drm_gsc.c
drm/exynos: Use devm_clk_get in exynos_drm_rotator.c
drm/exynos: Remove redundant NULL check in exynos_drm_rotator.c
drm/exynos: Remove unnecessary devm_* freeing APIs in exynos_drm_rotator.c
drm/exynos: Use devm_clk_get in exynos_drm_fimc.c
drm/exynos: Remove redundant NULL check
drm/exynos: Remove explicit freeing using devm_* APIs in exynos_drm_fimc.c
drm/exynos: Use devm_kzalloc in exynos_drm_ipp.c
drm/exynos: fix gem buffer allocation type checking
drm/exynos: remove needless parenthesis.
drm/exynos: fix incorrect interrupt induced by m2m operation.
...
Olof Johansson [Tue, 8 Jan 2013 17:49:50 +0000 (09:49 -0800)]
Merge tag 'omap-for-v3.8-rc2/fixes-signed-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
The biggest change is a fix to deal with different power state
on omap2 registers that causes issues trying to use common PM code.
Also fix few incorrect registers, and an issue for omap1 USB, and
few sparse fixes for issues that sneaked in with all the clean-up.
Olof Johansson [Tue, 8 Jan 2013 17:42:52 +0000 (09:42 -0800)]
Merge branch 'v3.8-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim:
Most of them are EXYNOS5440 fixes which are for changing uart console,
cpu id (typo) and silent complaining gpio error in kernel boot.
* 'v3.8-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: skip the clock initialization for exynos5440
ARM: EXYNOS: enable PINCTRL for EXYNOS5440
ARM: dts: use uart port1 for console on exynos4210-smdkv310
ARM: dts: use uart port0 for console on exynos5440-ssdk5440
ARM: SAMSUNG: fix the cpu id for EXYNOS5440
ARM: EXYNOS: Revise HDMI resource size
Olof Johansson [Tue, 8 Jan 2013 16:39:27 +0000 (08:39 -0800)]
Merge tag 'mxs-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo:
I have to send one critical mxsfb fix through arm-soc, as FB maintainer
is unresponsive for quite a while. People start complaining the missing
of such an important fix.
* tag 'mxs-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6:
video: mxsfb: fix crash when unblanking the display
ARM: dts: imx23-olinuxino: Fix IOMUX settings
Olof Johansson [Tue, 8 Jan 2013 16:39:00 +0000 (08:39 -0800)]
Merge tag 'imx-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo:
It includes one critical fix - wrong flexcan2 clock will hang system
when the port gets brought up. The other two are non-critical fixes,
which are sent together here, since it's still early -rc stage.
* tag 'imx-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: mx5: Fix MX53 flexcan2 clock
ARM: dts: imx31-bug: Fix manufacturer compatible string
clk: imx: Remove 'clock-output-names' from the examples
Linus Torvalds [Tue, 8 Jan 2013 15:33:41 +0000 (07:33 -0800)]
Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Nothing too exciting here, just a few regression and trivial fixes,
and new quirks for HD-audio and USB-audio.
- HD-audio mute LED mode enum fix
- Fix kernel panic of Digidesign Mbox2 usb-audio quirk (which was new
in 3.8-rc1)
- Creative BT-D1 usb-audio quirk
- mute LED fixup for HP Pavillion 17 laptop"
* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec)
ALSA: au88x0: fix incorrect left shift
sound: oss/pas2: Fix possible access out of array
ALSA: usb-audio: Fix kernel panic of Digidesign Mbox2 quirk
ALSA: usb-audio: Add support for Creative BT-D1 via usb sound quirks
ALSA: hda - Switch "On" and "Off" for "Mute-LED Mode" kcontrol
7) Fix high order page allocation failures in netfilter xt_recent, from
Eric Dumazet.
8) mac802154 needs to use netif_rx_ni() instead of netif_rx() because
mac802154_process_data() can execute in process rather than
interrupt context. From Alexander Aring.
9) Fix splice handling of MSG_SENDPAGE_NOTLAST, otherwise we elide one
tcp_push() too many. From Eric Dumazet and Willy Tarreau.
10) Fix skb->truesize tracking in XEN netfront driver, from Ian
Campbell.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits)
xen/netfront: improve truesize tracking
ipv4: fix NULL checking in devinet_ioctl()
tcp: fix MSG_SENDPAGE_NOTLAST logic
net/ipv4/ipconfig: really display the BOOTP/DHCP server's address.
ip-sysctl: fix spelling errors
mac802154: fix NOHZ local_softirq_pending 08 warning
ipv6: document ndisc_notify in networking/ip-sysctl.txt
ath9k: Fix Kconfig for ATH9K_HTC
netfilter: xt_recent: avoid high order page allocations
netfilter: fix missing dependencies for the NOTRACK target
netfilter: ip6t_NPT: fix IPv6 NTP checksum calculation
bridge: add empty br_mdb_init() and br_mdb_uninit() definitions.
vxlan: allow live mac address change
bridge: Correctly unregister MDB rtnetlink handlers
brcmfmac: fix parsing rsn ie for ap mode.
brcmsmac: add copyright information for Canonical
rtlwifi: rtl8723ae: Fix warning for unchecked pci_map_single() call
rtlwifi: rtl8192se: Fix warning for unchecked pci_map_single() call
rtlwifi: rtl8192de: Fix warning for unchecked pci_map_single() call
rtlwifi: rtl8192ce: Fix warning for unchecked pci_map_single() call
...
Daniel Vetter [Tue, 18 Dec 2012 21:25:11 +0000 (22:25 +0100)]
drm/ttm: fix fence locking in ttm_buffer_object_transfer
Noticed while reviewing the fence locking in the radeon pageflip
handler.
v2: Instead of grabbing the bdev->fence_lock in object_transfer just
move the single callsite of that function a few lines, so that it is
protected by the fence_lock. Suggested by Jerome Glisse.
v3: Fix typo in commit message.
Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
Olof Johansson [Tue, 8 Jan 2013 05:09:17 +0000 (21:09 -0800)]
Merge tag 'mvebu_fixes_for_v3.8' of git://git.infradead.org/users/jcooper/linux into fixes
From Jason Cooper:
fixes for mvebu/kirkwood v3.8
- use correct uart driver for mvebu boards
- add a missing DT clocks
- gpio-poweroff level vs. edge triggering, use gpio_is_valid()
- remove an inappropriate __init, modules need to access function.
- various DT fixes
- error handling in mv_xor
* tag 'mvebu_fixes_for_v3.8' of git://git.infradead.org/users/jcooper/linux:
pinctrl: mvebu: make pdma clock on dove mandatory
ARM: Dove: Add pinctrl clock to DT
dma: mv_xor: fix error handling for clocks
dma: mv_xor: fix error handling of mv_xor_channel_add()
arm: mvebu: Add missing ; for cpu node.
arm: mvebu: Armada XP MV78230 has only three Ethernet interfaces
arm: mvebu: Armada XP MV78230 has two cores, not one
clk: mvebu: Remove inappropriate __init tagging
ARM: Kirkwood: Use fixed-regulator instead of board gpio call
ARM: Kirkwood: Fix missing sdio clock
ARM: Kirkwood: Switch TWSI1 of 88f6282 to DT clock providers
Power: gpio-poweroff: Fix documentation and gpio_is_valid
ARM: Kirkwood: Fix missing clk for USB device.
arm: mvebu: Use dw-apb-uart instead of ns16650 as UART driver
Olof Johansson [Sat, 5 Jan 2013 02:45:08 +0000 (18:45 -0800)]
Merge tag 'nomadik-fixes-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into fixes
From Linus Walleij:
Two fixes to the Nomadik:
- Delete a dangling include
- Bump IRQ numbers to offset at 32
* tag 'nomadik-fixes-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ARM: nomadik: bump the IRQ numbers again
ARM: nomadik: delete dangling include
Rob Herring [Sun, 30 Dec 2012 16:15:05 +0000 (10:15 -0600)]
ARM: highbank: fix secondary boot and hotplug
With commit 384a290 (ARM: gic: use a private mapping for CPU target
interfaces), wake-up IPIs now go to all cores as the gic cpu interface
numbering may not follow core numbering. This broke secondary boot on
highbank since the boot address was already set for all secondary cores,
this caused all cores to boot before the kernel was ready.
Fix this by moving the setting of the jump address to
highbank_boot_secondary instead of highbank_smp_prepare_cpus and
highbank_cpu_die. Also, clear the address when we boot. This prevents
cores from booting before they are actually triggered and is also necessary
to get suspend/resume to work.
Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
Rob Herring [Sun, 30 Dec 2012 16:15:03 +0000 (10:15 -0600)]
ARM: dts: fix highbank cpu mpidr values
With the addition of commit a0ae0240 (ARM: kernel: add device tree init
map function), the cpu reg values must match the cpu mpidr register or we'll
get warnings. For some reason, the CLUSTERID on highbank is 9, so the reg
value needs to be 0x90n to quiet the warnings.
Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>
Dave Airlie [Tue, 8 Jan 2013 04:52:52 +0000 (14:52 +1000)]
Merge branch 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux into drm-next
Alex writes:
A few more fixes for DMA and a mac quirk.
* 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: add quirk for d3 delay during switcheroo poweron for apple macbooks
drm/radeon: fix DMA CS parser for r6xx linear copy packet
drm/radeon: split r6xx and r7xx copy_dma functions
Seung-Woo Kim [Thu, 27 Sep 2012 06:30:06 +0000 (15:30 +0900)]
drm/prime: drop reference on imported dma-buf come from gem
Increasing ref counts of both dma-buf and gem for imported dma-buf come from gem
makes memory leak. release function of dma-buf cannot be called because f_count
of dma-buf increased by importing gem and gem ref count cannot be decrease
because of exported dma-buf.
So I add dma_buf_put() for imported gem come from its own gem into each drivers
having prime_import and prime_export capabilities. With this, only gem ref
count is increased if importing gem exported from gem of same driver.
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Kyungmin.park <kyungmin.park@samsung.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Rob Clark <rob.clark@linaro.org> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Ian Campbell [Mon, 7 Jan 2013 05:32:06 +0000 (05:32 +0000)]
xen/netfront: improve truesize tracking
Using RX_COPY_THRESHOLD is incorrect if the SKB is actually smaller
than that. We have already accounted for this in
NETFRONT_SKB_CB(skb)->pull_to so use that instead.
Fixes WARN_ON from skb_try_coalesce.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Sander Eikelenboom <linux@eikelenboom.it> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: annie li <annie.li@oracle.com> Cc: xen-devel@lists.xen.org Cc: netdev@vger.kernel.org Cc: stable@kernel.org # 3.7.x only Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Airlie [Tue, 8 Jan 2013 03:39:02 +0000 (13:39 +1000)]
Merge branch 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Summary:
- change exynos file license
. Most of exynos files had been copied from some randome
file and not updated correctly(wrong company name used).
This was our mistakes so chagnes it correctly. For this,
I'm not sure that this patch should go to -fix or -next.
So please give me any comment if there is any problem.
- consider buffer allocation without iommu
. Without iommu, dma_alloc_attrs function allocates some
memory region and returns cpu address so this patch makes
the cpu address to be set to buf->kvaddr correctly
- cleanups to ipp relevant codes.
- use common finish page flip function
. to avoid the duplication of same code, use
exynos_drm_crtc_finish_pageflip function commonly instead
of each one.
- fix fimd resume issue.
. when fimd was turned off by suspend, there was one issue that
the fimd wasn't turned on by resume so fix it chaing resume
condition.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: (25 commits)
drm/exynos: move finish page flip to a common place
drm/exynos: fimd: modify condition in fimd resume
drm/exynos: Use devm_clk_get in exynos_drm_gsc.c
drm/exynos: Remove redundant NULL check in exynos_drm_gsc.c
drm/exynos: Remove explicit freeing using devm_* APIs in exynos_drm_gsc.c
drm/exynos: Use devm_clk_get in exynos_drm_rotator.c
drm/exynos: Remove redundant NULL check in exynos_drm_rotator.c
drm/exynos: Remove unnecessary devm_* freeing APIs in exynos_drm_rotator.c
drm/exynos: Use devm_clk_get in exynos_drm_fimc.c
drm/exynos: Remove redundant NULL check
drm/exynos: Remove explicit freeing using devm_* APIs in exynos_drm_fimc.c
drm/exynos: Use devm_kzalloc in exynos_drm_ipp.c
drm/exynos: fix gem buffer allocation type checking
drm/exynos: remove needless parenthesis.
drm/exynos: fix incorrect interrupt induced by m2m operation.
drm/exynos: remove color bar pattern operation.
drm/exynos: correct some comments to abbreviation.
drm/exynos: fix build warning.
drm/exynos: consider both case of vflip and hflip.
drm/exynos: remove needless error handling to property.
...
Marek Vasut [Mon, 7 Jan 2013 14:27:00 +0000 (15:27 +0100)]
ARM: mx5: Fix MX53 flexcan2 clock
The second FlexCAN port uses different clock than the first one, configure
correct clock to prevent hanging of the system during bringing up of the port.
Linus Torvalds [Tue, 8 Jan 2013 00:17:18 +0000 (16:17 -0800)]
Merge tag 'pm+acpi-for-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
- Removal of some ACPICA code that the kernel will never use from Lv
Zheng.
- APEI fix from Adrian Huang.
- Removal of unnecessary ACPI memory hotplug driver code from Liu
Jinsong.
- Minor ACPI power management fixes.
- ACPI debug code fix from Joe Perches.
- ACPI fix to make system bus device nodes get the right names.
- PNP resources handling fixes from Witold Szczeponik.
- cpuidle fix for a recent regression stalling boot on systems with
great numbers of CPUs from Daniel Lezcano.
- cpuidle fixes from Sivaram Nair.
- intel_idle debug message fix from Youquan Song.
- cpufreq build regression fix from Larry Finger.
- cpufreq fix for an obscure initialization race related to statistics
from Konstantin Khlebnikov.
- cpufreq change disabling the Longhaul driver by default from Rafał
Bilski.
- PM core fix preventing device suspend errors from happening during
system suspend due to obscure race conditions.
- PM QoS local variable name cleanup.
* tag 'pm+acpi-for-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: Move disabling/enabling runtime PM to late suspend/early resume
PM / QoS: Rename local variable in dev_pm_qos_add_ancestor_request()
ACPI / scan: Do not use dummy HID for system bus ACPI nodes
cpufreq / governor: Fix problem with cpufreq_ondemand or cpufreq_conservative
cpufreq / Longhaul: Disable driver by default
cpufreq / stats: fix race between stats allocation and first usage
cpuidle: fix lock contention in the idle path
intel_idle: pr_debug information need separated
cpuidle / coupled: fix ready counter decrement
cpuidle: Fix finding state with min power_usage
PNP: Handle IORESOURCE_BITS in resource allocation
PNP: Simplify setting of resources
ACPI / power: Remove useless message from device registering routine
ACPI / glue: Update DBG macro to include KERN_DEBUG
ACPI / PM: Do not apply ACPI_SUCCESS() to acpi_bus_get_device() result
ACPI / memhotplug: remove redundant logic of acpi memory hotadd
ACPI / APEI: Fix the returned value in erst_dbg_read
ACPICA: Remove useless mini-C library.
Linus Torvalds [Mon, 7 Jan 2013 21:21:55 +0000 (13:21 -0800)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
"Misc small cifs fixes"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: Don't let read only caching for mandatory byte-range locked files
CIFS: Fix write after setting a read lock for read oplock files
Revert "CIFS: Fix write after setting a read lock for read oplock files"
cifs: adjust sequence number downward after signing NT_CANCEL request
cifs: move check for NULL socket into smb_send_rqst
The IRQ array must be terminated by -1 and not by -1+OMAP_INTC_START
This led to having a resource list of 100s of IRQs.
Looks like this was caused by commit a2cfc509 (ARM: OMAP3+: hwmod: Add
AM33XX HWMOD data) that probably had some search and replace updates
done for the patch for sparse irq support.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com> Acked-by: Paul Walmsley <paul@pwsan.com>
[tony@atomide.com: updated wit information about the breaking commit] Signed-off-by: Tony Lindgren <tony@atomide.com>
Alex Elder [Mon, 7 Jan 2013 16:47:46 +0000 (10:47 -0600)]
sctp: fix Kconfig bug in default cookie hmac selection
Commit 0d0863b02002 ("sctp: Change defaults on cookie hmac selection")
added a "choice" to the sctp Kconfig file. It introduced a bug which
led to an infinite loop when while running "make oldconfig".
The problem is that the wrong symbol was defined as the default value
for the choice. Using the correct value gets rid of the infinite loop.
Note: if CONFIG_SCTP_COOKIE_HMAC_SHA1=y was present in the input
config file, both that and CONFIG_SCTP_COOKIE_HMAC_MD5=y be present
in the generated config file.
Signed-off-by: Alex Elder <elder@inktank.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 7 Jan 2013 17:22:50 +0000 (09:22 -0800)]
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 regression fixes from Ted Ts'o:
"Bug fixes, including two regressions introduced in v3.8. The most
serious of these regressions is a buffer cache leak."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: remove duplicate call to ext4_bread() in ext4_init_new_dir()
ext4: release buffer in failed path in dx_probe()
ext4: fix configuration dependencies for ext4 ACLs and security labels
Borislav Petkov [Tue, 18 Dec 2012 21:02:56 +0000 (22:02 +0100)]
EDAC: Fix EDAC Kconfig menu
After f65aad41772f("MIPS: Cavium: Add EDAC support."), when entering
the "Device Drivers" toplevel menu in menuconfig, the suboptions behind
EDAC appeared merged with the rest of the device drivers types. This was
because the menuconfig option EDAC is querying an EDAC_SUPPORT Kconfig
bool which was defined after the menu definition.
When pushing EDAC_SUPPORT up, before the menu definition, the variable
is defined earlier and the above menuconfig artifact doesn't happen.
This patch fixes use-after-free and double-free bugs in
edac_mc_sysfs_exit(). mci_pdev has single reference and put_device()
calls mc_attr_release() which calls kfree(). The following
device_del() works with already released memory. An another kfree() in
edac_mc_sysfs_exit() releses the same memory again. Great.
Linus Torvalds [Mon, 7 Jan 2013 16:36:45 +0000 (08:36 -0800)]
Merge tag 'nfs-for-3.8-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
- Fix a permissions problem when opening NFSv4 files that only have the
exec bit set.
- Fix a couple of typos in pNFS (inverted logic), and the mount parsing
(missing pointer dereference).
- Work around a series of deadlock issues due to workqueues using
struct work_struct pointer address comparisons in the re-entrancy
tests. Ensure that we don't free struct work_struct prematurely if
our work function involves waiting for completion of other work items
(e.g. by calling rpc_shutdown_client).
- Revert the part of commit 168e4b3 that is causing unnecessary
warnings to be issued in the nfsd callback code.
* tag 'nfs-for-3.8-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: avoid dereferencing null pointer in initiate_bulk_draining
SUNRPC: Partial revert of commit 168e4b39d1afb79a7e3ea6c3bb246b4c82c6bdb9
NFS: Ensure that we free the rpc_task after read and write cleanups are done
SUNRPC: Ensure that we free the rpc_task after cleanups are done
nfs: fix null checking in nfs_get_option_str()
pnfs: Increase the refcount when LAYOUTGET fails the first time
NFS: Fix access to suid/sgid executables
ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec)
The mute LED is in this case connected to the Mic1 VREF.
The machine also exposes the following string in BIOS:
"HP_Mute_LED_0_A", so if more machines are coming, it probably
makes sense to try to do something more generic, like for the
IDT codec.
With the ability to pass clocks through DT, now make the pdma
clock of dove pinctrl mandatory. Otherwise, pinctrl will hang
the system when accessing some registers.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Linus Torvalds [Mon, 7 Jan 2013 15:50:41 +0000 (07:50 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
"Various fixes across the tree. The modpost error due to
virt_addr_valid() not being usable from modules required a number of
preparatory cleanups so a clean fix was possible."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: 64-bit: Fix build if !CONFIG_MODULES
MIPS: Wire up finit_module syscall.
MIPS: Fix modpost error in modules attepting to use virt_addr_valid().
MIPS: page.h: Remove now unnecessary #ifndef __ASSEMBLY__ wrapper.
MIPS: Switch remaining assembler PAGE_SIZE users to <asm/asm-offsets.h>.
MIPS: Include PAGE_S{IZE,HIFT} in <asm/offset.h>.
MIPS: Don't include <asm/page.h> unnecessarily.
MIPS: Fix comment.
Revert "MIPS: Optimise TLB handlers for MIPS32/64 R2 cores."
MIPS: perf: Fix build failure in XLP perf support.
MIPS: Alchemy: Make 32kHz and r4k timer coexist peacefully
Linus Torvalds [Mon, 7 Jan 2013 15:42:38 +0000 (07:42 -0800)]
Merge branch 'akpm' (fixes from Andrew)
Merge emailed fixes from Andrew Morton:
"Bunch of fixes:
- delayed IPC updates. I held back on this because of some possible
outstanding bug reports, but they appear to have been addressed in
later versions
- A bunch of MAINTAINERS updates
- Yet Another RTC driver. I'd held this back while a couple of
little issues were being worked out.
I'm expecting an intrusive-but-simple patchset from Joe Perches which
splits up printk.c into kernel/printk/*. That will be a pig to
maintain for two months so if it passes testing I'd like to get it
upstream after a week or so."
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (35 commits)
printk: fix incorrect length from print_time() when seconds > 99999
drivers/rtc/rtc-vt8500.c: fix handling of data passed in struct rtc_time
drivers/rtc/rtc-vt8500.c: correct handling of CR_24H bitfield
rtc: add RTC driver for TPS6586x
MAINTAINERS: fix drivers/staging/sm7xx/
MAINTAINERS: remove include/linux/of_pwm.h
MAINTAINERS: remove arch/*/lib/perf_event*.c
MAINTAINERS: remove drivers/mmc/host/imxmmc.*
MAINTAINERS: fix Documentation/mei/
MAINTAINERS: remove arch/x86/platform/mrst/pmu.*
MAINTAINERS: remove firmware/isci/
MAINTAINERS: fix drivers/ieee802154/
MAINTAINERS: fix .../plat-mxc/include/mach/imxfb.h
MAINTAINERS: remove drivers/video/epson1355fb.c
MAINTAINERS: fix drivers/media/usb/dvb-usb/cxusb*
MAINTAINERS: adjust for UAPI
MAINTAINERS: fix drivers/media/platform/atmel-isi.c
MAINTAINERS: fix arch/arm/mach-at91/include/mach/at_hdmac.h
MAINTAINERS: fix drivers/rtc/rtc-vt8500.c
MAINTAINERS: remove arch/arm/plat-s5p/
...
Linus Torvalds [Mon, 7 Jan 2013 15:39:32 +0000 (07:39 -0800)]
Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
Pull microblaze update from Michal Simek:
"This fixes noMMU kernel and I have also added defconfig updates which
fix issue with one external dependency and enable all xilinx device
drivers for 0-day testing system.
Additionally wire up finit_module system call, and do highmem fixup
and pci warnings reported by the 0-day testing system"
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Update microblaze defconfigs
microblaze: Fix pci compilation and sparse warnings
microblaze: Add finit_module syscall
microblaze: Kill __kmap_atomic()
microblaze: Change section flags for noMMU
microblaze: Microblaze wants sys_fork for noMMU too
Linus Torvalds [Mon, 7 Jan 2013 15:37:36 +0000 (07:37 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull integrity subsystem regression fix from James Morris:
"Commit fdf90729e578 "ima: support new kernel module syscall" by error
modified init_module() to return INTEGRITY_UNKNOWN (which is 4) to
user space if the kernel was built with CONFIG_IMA_APPRAISE=y.
As a result, user space can no longer load kernel modules using
init_module(). This commit fixes this regression."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
ima: fallback to MODULE_SIG_ENFORCE for existing kernel module syscall
drm/radeon: add quirk for d3 delay during switcheroo poweron for apple macbooks
vga-switcheroo with apple-gmux does not switch correctly on my system. The PCI
configuration space is not restored correctly, resulting in MSI not working after switch.
Only useful item in dmesg is:
[ 33.922807] radeon 0000:01:00.0: Refused to change power state, currently in D3
I did some testing, dumping the difference in ms between first succesful switch
from D3 to D0, and it seems that there is slightly more than 20 ms difference when
the device is re-enabled through vga-switcheroo.
So bump the re-enable d3 delay to 20 ms to handle this, which fixes msi not working
on my system after switcheroo-ing. Default d3_delay value is PCI_PM_D3_WAIT, 10 ms.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Gregory CLEMENT [Mon, 7 Jan 2013 10:28:42 +0000 (11:28 +0100)]
ARM: 7616/1: cache-l2x0: aurora: Use writel_relaxed instead of writel
The use of writel instead of writel_relaxed lead to deadlock in some
situation (SMP on Armada 370 for instance). The use of writel_relaxed
as it was done in the rest of this driver fixes this bug.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Gregory CLEMENT [Mon, 7 Jan 2013 10:27:14 +0000 (11:27 +0100)]
ARM: 7615/1: cache-l2x0: aurora: Invalidate during clean operation with WT enable
This patch fixes a bug for Aurora L2 cache controller when the
write-through mode is enable. For the clean operation even if we don't
have to flush the lines we still need to invalidate them.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
vortex_wt_setdsout performs bit-negation on the bit position (wt&0x1f)
rather than on the resulting bitmask. This code is never actually
invoked (vortex_wt_setdsout is always called with en=1), so this does
not currently cause any problem, and this patch is simply cleanup.
Eric Dumazet [Sun, 6 Jan 2013 18:21:49 +0000 (18:21 +0000)]
tcp: fix MSG_SENDPAGE_NOTLAST logic
commit 35f9c09fe9c72e (tcp: tcp_sendpages() should call tcp_push() once)
added an internal flag : MSG_SENDPAGE_NOTLAST meant to be set on all
frags but the last one for a splice() call.
The condition used to set the flag in pipe_to_sendpage() relied on
splice() user passing the exact number of bytes present in the pipe,
or a smaller one.
But some programs pass an arbitrary high value, and the test fails.
The effect of this bug is a lack of tcp_push() at the end of a
splice(pipe -> socket) call, and possibly very slow or erratic TCP
sessions.
We should both test sd->total_len and fact that another fragment
is in the pipe (pipe->nrbufs > 1)
Many thanks to Willy for providing very clear bug report, bisection
and test programs.
Reported-by: Willy Tarreau <w@1wt.eu> Bisected-by: Willy Tarreau <w@1wt.eu> Tested-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Prathyush K [Thu, 27 Dec 2012 11:40:13 +0000 (06:40 -0500)]
drm/exynos: fimd: modify condition in fimd resume
If fimd is runtime suspended (by DPMS OFF), fimd_suspend does not
call fimd_activate(false) and just returns. Similarily the check in
fimd_resume should not resume if previously runtime_suspended.
Instead the existing check does the opposite. So if fimd was not
runtime suspended, suspend will turn off fimd but resume will not turn
it on. This patch fixes this issue by reversing the condition.
Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Valerie Aurora [Mon, 7 Jan 2013 04:38:44 +0000 (23:38 -0500)]
ext4: fix configuration dependencies for ext4 ACLs and security labels
Commit "ext4: Remove CONFIG_EXT4_FS_XATTR" removed the configuration
dependencies for ext4 xattrs from the ext4 ACLs and security labels
configuration options, but did not replace them with a dependency on
ext4 itself. Add back the dependency on ext4 so the options only show
up if ext4 is enabled.
Signed-off-by: Valerie Aurora <val@vaaconsulting.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Tao Ma <boyu.mt@taobao.com>
Fabio Estevam [Sat, 5 Jan 2013 02:51:59 +0000 (03:51 +0100)]
ARM: 7612/1: imx: Do not select some errata that depends on !ARCH_MULTIPLATFORM
Since commit 62e4d357a (ARM: 7609/1: disable errata work-arounds which access
secure registers) ARM_ERRATA_743622/751472 depends on !ARCH_MULTIPLATFORM.
Since imx has been converted to multiplatform, the following warning happens:
$ make imx_v6_v7_defconfig
warning: (SOC_IMX6Q && ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects
ARM_ERRATA_751472 which has unmet direct dependencies (CPU_V7 &&
!ARCH_MULTIPLATFORM)
warning: (SOC_IMX6Q && ARCH_TEGRA_3x_SOC) selects ARM_ERRATA_743622
which has unmet direct dependencies (CPU_V7 && !ARCH_MULTIPLATFORM)
warning: (SOC_IMX6Q && ARCH_TEGRA_3x_SOC) selects ARM_ERRATA_743622
which has unmet direct dependencies (CPU_V7 && !ARCH_MULTIPLATFORM)
warning: (SOC_IMX6Q && ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects
ARM_ERRATA_751472 which has unmet direct dependencies (CPU_V7 &&
!ARCH_MULTIPLATFORM)
Recommended approach is to remove ARM_ERRATA_743622/751472 from being selected
by SOC_IMX6Q and apply such workarounds into the bootloader.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
When a channel fails to initialize, we release all ressources,
including clocks. However, a XOR unit is not necessarily associated to
a clock (some variants of Marvell SoCs have a clock for XOR units,
some don't), so we shouldn't unconditionally be releasing the clock.
Instead, just like we do in the mv_xor_remove() function, we should
check if one clock was found before releasing it.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
dma: mv_xor: fix error handling of mv_xor_channel_add()
When mv_xor_channel_add() fails for one XOR channel, we jump to the
err_channel_add label to clean up all previous channels that had been
initialized correctly. Unfortunately, while handling this error
condition, we were disposing the IRQ mapping before calling
mv_xor_channel_remove() (which does the free_irq()), which is
incorrect.
Instead, do things properly in the reverse order of the
initialization: first remove the XOR channel (so that free_irq() is
done), and then dispose the IRQ mapping.
This avoids ugly warnings when for some reason one of the XOR channel
fails to initialize.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Andrew Lunn [Sun, 6 Jan 2013 10:10:42 +0000 (11:10 +0100)]
arm: mvebu: Add missing ; for cpu node.
The Armada XP MV78230 DT include file is missing a ; at the
end of the cpu node.
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
arm: mvebu: Armada XP MV78230 has only three Ethernet interfaces
We originally thought that the MV78230 variant of the Armada XP had
four Ethernet interfaces, like the other variants MV78260 and
MV78460. In fact, this is not true, and the MV78230 has only three
Ethernet interfaces.
So, the definitions of the Ethernet interfaces is now done as follows:
* armada-370-xp.dtsi: definitions of the first two interfaces, that
are common to Armada 370 and Armada XP
* armada-xp.dtsi: definition of the third interface, common to all
Armada XP variants.
* armada-xp-mv78260.dtsi and armada-xp-mv78460.dtsi: definition of
the fourth interface.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
arm: mvebu: Armada XP MV78230 has two cores, not one
Contrary to our understanding at the time armada-xp-mv78230.dtsi was
written, the MV78230 variant of the Armada XP SoC has two cores and
not one. This patch updates the .dtsi file to take into account this
reality.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Joshua Coombs [Sun, 6 Jan 2013 10:10:39 +0000 (11:10 +0100)]
clk: mvebu: Remove inappropriate __init tagging
If the Orion WDT driver is built as a module, an opps occurs during
clk lookup when calling mvebu_clk_gating_get_src(). Remove the
inappropriate __init tag so the function is available for modules
after kernel init.
Signed-off-by: Joshua Coombs <josh.coombs@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Andrew Lunn [Sun, 6 Jan 2013 10:10:38 +0000 (11:10 +0100)]
ARM: Kirkwood: Use fixed-regulator instead of board gpio call
With the change to a DT based pinctrl/gpio driver, using gpio API
calls in board-*.c files no longer works, a dereferenced NULL pointer
exception occurs instead. By converting the GPIO code into a
fixed-regulator which gets probed later once pinctrl/gpio is
available, we avoid the exception.
Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Stefan Peter <s.peter@mplch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
ARM: Kirkwood: Switch TWSI1 of 88f6282 to DT clock providers
Clock Management of kirkwood has moved to DT clock providers.
However, TWSI1 has not yet been done.
This switches TWSI1 of 88f6282 to DT clock providers.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Andrew Lunn [Sun, 6 Jan 2013 10:10:35 +0000 (11:10 +0100)]
Power: gpio-poweroff: Fix documentation and gpio_is_valid
Improve the documentation to clarify level vs edge triggered power off.
Improve the comments for level vs edge triggered power off.
Make use of gpio_is_valid().
Reported-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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