The internal codes are not part of the kernel's ABI.
Signed-off-by: David Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4932/
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
- Grabbing of default pinctrl handles from the device core.
These are the hunks hitting drivers/base. All is ACKed by
Greg, after a long discussion about different alternatives.
- Some stuff also touches the MFD and ARM SoC trees, this has
been coordinated and ACKed.
- New drivers for:
- The Tegra 114 sub-SoC
- Allwinner sunxi
- New ABx500 driver and sub-SoC drivers for AB8500,
AB8505, AB9540 and AB8540.
- Make it possible for hogged pins to enter a sleep mode,
and make it possible for drivers to control that mode.
- Various clean-up, extensions and device tree support to
various pin controllers.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)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=SQ9W
-----END PGP SIGNATURE-----
Merge tag 'pinctrl-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl changes from Linus Walleij:
"These are the main pinctrl changes for the v3.9 merge window. The
most interesting change by far is how the device core grabs pinctrl
default handles avoiding the need to stick boilerplate into driver
consumers.
- Grabbing of default pinctrl handles from the device core. These
are the hunks hitting drivers/base. All is ACKed by Greg, after a
long discussion about different alternatives.
- Some stuff also touches the MFD and ARM SoC trees, this has been
coordinated and ACKed.
- New drivers for:
- The Tegra 114 sub-SoC
- Allwinner sunxi
- New ABx500 driver and sub-SoC drivers for AB8500, AB8505, AB9540
and AB8540.
- Make it possible for hogged pins to enter a sleep mode, and make it
possible for drivers to control that mode.
- Various clean-up, extensions and device tree support to various pin
controllers."
* tag 'pinctrl-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (68 commits)
pinctrl: tegra: add clfvs function to Tegra114 support
pinctrl: generic: rename input schmitt disable
pinctrl/pinconfig: add debug interface
pinctrl: samsung: remove duplicated line
ARM: ux500: use real AB8500 IRQ numbers instead of virtual ones
ARM: ux500: remove irq_base property from platform_data
pinctrl/abx500: use direct IRQ defines
pinctrl/abx500: replace IRQ offsets with table read-in values
pinctrl/abx500: move IRQ handling to ab8500-core
pinctrl: exynos5440: remove erroneous __init
pinctrl/abx500: adjust offset for get_mode()
pinctrl/abx500: add Device Tree support
pinctrl/abx500: align GPIO cluster boundaries
pinctrl/abx500: prevent error path from corrupting returning error
pinctrl: sunxi: add of_xlate function
pinctrl/lantiq: fix pin number in ltq_pmx_gpio_request_enable
pinctrl/lantiq: add functionality to falcon_pinconf_dbg_show
pinctrl/lantiq: fix pinconfig parameters
pinctrl/lantiq: one of the boot leds was defined incorrectly
pinctrl/lantiq: only probe available pad controllers
...
A fairly quiet release for the regulator API, the bulk of the changes
being lots of small cleanups and API updates contributed by Axel Lin
with just a small set of larger changes:
- New driver for LP8755
- DT support for S5M8767, TPS51632, TPS6507x and TPS65090
- Support for writing a "commit changes" bit in the regmap helper
functions.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQIcBAABAgAGBQJRI3THAAoJELSic+t+oim9s74P/jrnSyHIE6soY4QjWb2N9Vgd
QjbEYZFPwNMXgcYt7P3srJbHr0L/Jrwweo+AZDw1z9WDT9aPBAIW/r2cIQ4V/bRg
KFvb77JAi/iwKXzjReJpk4lZvwmnb9O6ZLZFnq0FC7Wfu8SDkskzT5FOwkqNjnR2
6NzDGIgXddSxPYUH6gsZYiYw3b9DcW2HguT4C69XSjFssYeOtvHdEAEO+8drylAF
AEqPylzkhWG44KuDOw3CioHrz9nHuWQor4GyeH1pm06YFdHss9uNe3oA5J75Vk5f
6ugNSHcq9kU/3o6TaHARkDJ/DbgjA5aAu/alXBrpEpSSKgEvnFOgEcb43QGWPeuz
R0CK6KSAG4WzLFeVq+ped6470/YiihhUeyIgt5t+ug4g8a6xkw9L6K9NzypOVYD7
7fcUJnuzZz7v0MwVCJmHr7b9ESQac5vuwlGLE2iaNBIcsXI4S1uv6rrJI7mL5JbY
f7YpPHCAytDhAW0myuI55L8bkCUK/EuL1c8ISKehGdfkY72ZFgYZbV5225u4Fuf4
J+s2UICtIacKAtL3VXM1sR7Q5I5QfXvF+F36yrZriZzw3r5mDcxVo8+nymcduxW7
h2qFQ11725qDaPcorI5WbHsL6yoePTJPJN/x8ewxkrqB05lLeTJetm5ncB9ZUTFh
LdgLZROnRreFXXFMWpwZ
=+3b2
-----END PGP SIGNATURE-----
Merge tag 'regulator-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"A fairly quiet release for the regulator API, the bulk of the changes
being lots of small cleanups and API updates contributed by Axel Lin
with just a small set of larger changes:
- New driver for LP8755
- DT support for S5M8767, TPS51632, TPS6507x and TPS65090
- Support for writing a "commit changes" bit in the regmap helper
functions."
* tag 'regulator-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (60 commits)
regulator: Fix memory garbage dev_err printout.
regulator: max77686: Reuse rdev_get_id() function.
regulator: tps51632: Use regulator_[get|set]_voltage_sel_regmap
regulator: as3711: Fix checking if no platform initialization data
regulator: s5m8767: Prevent possible NULL pointer dereference
regulator: s5m8767: Fix dev argument for devm_kzalloc and of_get_regulator_init_data
regulator: core: Optimize _regulator_do_set_voltage if voltage does not change
regulator: max8998: Let regulator core handle the case selector == old_selector
regulator: s5m8767: Use of_get_child_count()
regulator: anatop: improve precision of delay time
regulator: show state for GPIO-controlled regulators
regulator: s5m8767: Fix build in non-DT case
regulator: add device tree support for s5m8767
regulator: palmas: Remove a redundant setting for warm_reset
regulator: mc13xxx: Use of_get_child_count()
regulator: max8997: Use of_get_child_count()
regulator: tps65090: Fix using wrong dev argument for calling of_regulator_match
regulators: anatop: add set_voltage_time_sel interface
regulator: Add missing of_node_put()
regulator: tps6507x: Fix using wrong dev argument for calling of_regulator_match
...
Patch c08e20d "arm: Add v7_invalidate_l1 to cache-v7.S" added
a generic version of this function and removed all platform
specific versions, while 4898de3 "ARM: PRIMA2: add new SiRFmarco
SMP SoC infrastructures" added another one, leading to a link
error. I verified that the two are identical, so we can
just remove the one in mach-prima2.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Several nice new features and performance improvements here, especially
the first:
- Support for using the cache infrastructure without the physical I/O,
allowing devices which don't fit the physical model regmap has to
take advantage of the cache infrastructure, contributed by Andrey
Smirnov.
- Several small improvements to the support for wake capable IRQs.
- Support for asynchronous I/O, allowing us to come much closer to
saturating fast buses like SPI.
- Support for simple array caches, giving higher performance for use
with MMIO devices.
- Restoration of the use of bulk reads for handling interrupts, giving
a performance improvement.
- Support for 24 bit register addresses.
- More performance improvements for debugfs.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQIcBAABAgAGBQJRI3JNAAoJELSic+t+oim9u48P/RO7v12dlQsH97PjWv5MFMNZ
LUqgfeP8zAyo3JiiHzQ8f+OFj5qKD1qE4hGRMPjoDQBEzNUYkppaEMolpeo3YP6k
51WkCrzgsAHvHRBO23v94JVXNiITKi7vtrzVvoY/j/0bKkwRtx80MHQngs5Z2gCr
cdfTbGBtyeEJE7vm4CeKJA+LNyCmO6c2ykd65WYaNaczOo0TOTJwAjgDCjaytiKi
wFPdm6ClO/vVeJdOVLowTHCyweQNSzhqbSNS8YZ8xVqaSUvLNvcfnHcSjiL+jjdn
Rv3kxYyXzM/fBgrFKBEjFEOMWiL0+og9kbayeRUcCQsBUNPNVpMNfr1HKhyajI6M
tFgg7rg9yodL+GHgiMBsEwQPVqeWDUvq3Hs5jFLqonejB+Owe5lzyaAYez7l5Grq
SgyhiF+K3nhefFyaIgiUC/qC7DuSRTqVreXtd1sp5ceaYw6tDvAR00HSipVQABxu
V4Gqz7czPk02IqabYxbuDfqLqOBk8Y0lygSCkvyI/9ueQt5VOhQNl7QFwGFYrLiW
p7E4InDU/BoqXOR6VCXaHO0Gbj+IcRhqPW158t0S1Dz3hSevWN6vt2gNKKp6EWZI
YY3kobN3VyNgwexOtZB4dCEtTwr7pZeQNsWMfEZHtMW/MY8kOdKyXe4QgOyOifTZ
NKe4inksJI9dUEBOwAxP
=S0R9
-----END PGP SIGNATURE-----
Merge tag 'regmap-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"Several nice new features and performance improvements here,
especially the first:
- Support for using the cache infrastructure without the physical
I/O, allowing devices which don't fit the physical model regmap has
to take advantage of the cache infrastructure, contributed by
Andrey Smirnov.
- Several small improvements to the support for wake capable IRQs.
- Support for asynchronous I/O, allowing us to come much closer to
saturating fast buses like SPI.
- Support for simple array caches, giving higher performance for use
with MMIO devices.
- Restoration of the use of bulk reads for handling interrupts,
giving a performance improvement.
- Support for 24 bit register addresses.
- More performance improvements for debugfs."
* tag 'regmap-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (24 commits)
regmap: mmio: add register clock support
regmap: debugfs: Factor out debugfs_tot_len calc into a function
regmap: debugfs: Optimize seeking within blocks of registers
regmap: debugfs: Add a `max_reg' member in struct regmap_debugfs_off_cache
regmap: debugfs: Fix reading in register field units
regmap: spi: Handle allocation failures gracefully
regmap: Export regmap_async_complete()
regmap: Export regmap_async_complete_cb
regmap: include linux/sched.h to fix build
regmap: spi: Support asynchronous I/O for SPI
regmap: Add asynchronous I/O support
regmap: Add "no-bus" option for regmap API
regmap: regmap: avoid spurious warning in regmap_read_debugfs
regmap: Add provisions to have user-defined write operation
regmap: Add provisions to have user-defined read operation
regmap: Add support for 24 bit wide register addresses
mfd: wm5110: Mark wakes as inverted
mfd: wm5102: Mark wakes as inverted
regmap: irq: Support wake IRQ mask inversion
regmap: irq: Fix sync of wake statuses to hardware
...
Pull cpuset changes from Tejun Heo:
- Synchornization has seen a lot of changes with focus on decoupling
cpuset synchronization from cgroup internal locking.
After this change, there only remain a couple of mostly trivial
dependencies on cgroup_lock outside cgroup core proper. cgroup_lock
is scheduled to be unexported in this devel cycle.
This will finally remove the fragile locking order around cgroup
(cgroup locking wants to / should be one of the outermost but yet has
been acquired from deep inside individual controllers).
- At this point, Li is most knowlegeable with cpuset and taking over
the maintainership of cpuset.
* 'for-3.9-cpuset' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: drop spurious retval assignment in proc_cpuset_show()
cpuset: fix RCU lockdep splat
cpuset: update MAINTAINERS
cpuset: remove cpuset->parent
cpuset: replace cpuset->stack_list with cpuset_for_each_descendant_pre()
cpuset: replace cgroup_mutex locking with cpuset internal locking
cpuset: schedule hotplug propagation from cpuset_attach() if the cpuset is empty
cpuset: pin down cpus and mems while a task is being attached
cpuset: make CPU / memory hotplug propagation asynchronous
cpuset: drop async_rebuild_sched_domains()
cpuset: don't nest cgroup_mutex inside get_online_cpus()
cpuset: reorganize CPU / memory hotplug handling
cpuset: cleanup cpuset[_can]_attach()
cpuset: introduce cpuset_for_each_child()
cpuset: introduce CS_ONLINE
cpuset: introduce ->css_on/offline()
cpuset: remove fast exit path from remove_tasks_in_empty_cpuset()
cpuset: remove unused cpuset_unlock()
Pull cgroup changes from Tejun Heo:
"Nothing too drastic.
- Removal of synchronize_rcu() from userland visible paths.
- Various fixes and cleanups from Li.
- cgroup_rightmost_descendant() added which will be used by cpuset
changes (it will be a separate pull request)."
* 'for-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: fail if monitored file and event_control are in different cgroup
cgroup: fix cgroup_rmdir() vs close(eventfd) race
cpuset: fix cpuset_print_task_mems_allowed() vs rename() race
cgroup: fix exit() vs rmdir() race
cgroup: remove bogus comments in cgroup_diput()
cgroup: remove synchronize_rcu() from cgroup_diput()
cgroup: remove duplicate RCU free on struct cgroup
sched: remove redundant NULL cgroup check in task_group_path()
sched: split out css_online/css_offline from tg creation/destruction
cgroup: initialize cgrp->dentry before css_alloc()
cgroup: remove a NULL check in cgroup_exit()
cgroup: fix bogus kernel warnings when cgroup_create() failed
cgroup: remove synchronize_rcu() from rebind_subsystems()
cgroup: remove synchronize_rcu() from cgroup_attach_{task|proc}()
cgroup: use new hashtable implementation
cgroups: fix cgroup_event_listener error handling
cgroups: move cgroup_event_listener.c to tools/cgroup
cgroup: implement cgroup_rightmost_descendant()
cgroup: remove unused dummy cgroup_fork_callbacks()
The header file will then be installed under /usr/include/linux so that
userspace applications can refer to Btrfs ioctls by name and use the same
structs used internally in the kernel.
Signed-off-by: Filipe Brandenburger <filbranden@google.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
CAP_DAC_READ_SEARCH overrides read and search permission check on
file and directory. It seems fit for BTRFS_IOC_INO_PATHS.
Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This reverts commit 2794ed013b.
Wasn't supposed to get used in btrfs_mknod, it was supposed to be in
btrfs_create, which was done in commit
9185aa587b.
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
btrfs_run_ordered_operations() needn't traverse the ordered operation list
repeatedly, it is because the transaction commiter will invoke it again when
there is no other writer in this transaction, it can ensure that no one can
add new objects into the ordered operation list.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
btrfs_start_delalloc_inodes() needn't traverse and flush the delalloc inodes
repeatedly. It is because we can regard the data that the users write after
we start delalloc inodes flush as the one which is after the delalloc inodes
flush is done, and we can flush it next time.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
We forget to check the return value of btrfs_run_ordered_operations() when
flushing all the pending stuffs, fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
We forget to check the return value of btrfs_start_delalloc_inodes(), fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
The current code of raid attr arry is hard to understand and it is easy to
introduce some problem if we modify the array. So I changed it and made it
more readable.
Cc: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This'd save us a rbtree search which may become expensive in large filesystem.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This does not change the logic of code, but can save us a read_lock.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
The API in tree log code has done sort of changes, and it proves that
we can benifit from using token, so do the same thing here.
function_graph tracer's timer shows that it costs nearly half time
of before(39.788us -> 22.391us).
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
commit d53ba47484
(Btrfs: use commit root when loading free space cache) has remove
the deadlock check, and the related comments can be removed as well.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
If we start running low on metadata space we will try to allocate a chunk,
which could then try to allocate a chunk to add the device entry. The thing
is we allocate a chunk before we try really hard to make the allocation, so
we should be able to find space for the device entry. Add a flag to the
trans handle so we know we're currently allocating a chunk so we can just
bail out if we try to allocate another chunk. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Since we don't actually copy the extent information from the source tree in
the fast case we don't need to wait for ordered io to be completed in order
to fsync, we just need to wait for the io to be completed. So when we're
logging our file just attach all of the ordered extents to the log, and then
when the log syncs just wait for IO_DONE on the ordered extents and then
write the super. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This patch fixes the following problem:
- improper return value
- unnecessary read-only check
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Use wrapper page_offset to get byte-offset into filesystem object for page.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
We may try to flush some dirty pages when there is no enough space to reserve.
But it is possible that this operation fails, in order to get enough space to
reserve successfully, we will sync all the delalloc file. This operation is
safe, we needn't worry about the case that the filesystem goes from r/w to r/o.
because the filesystem should guarantee all the dirty pages have been written
into the disk after it becomes readonly, so the sync operation will do nothing
if the filesystem is already readonly. Though it may waste lots of time,
as a corner case, we needn't care.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Locking and unlocking delayed ref mutex are in the different functions,
and the name of lock functions is not uniform, so the readability is not
so good, this patch optimizes the lock logic and makes it more readable.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
We're running into having 50-100 orphans left over with xfstests 83
because of ENOSPC when trying to start the transaction for the inode update.
But in fact, it makes no sense in updating the inode for the new size while
we're deleting the stupid thing. This patch fixes this problem.
Reported-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
The delayed item commit code in several functions is similar, so
cleanup it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Since we do not want to delay the async transaction commit, we should
use common work, not delayed work.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
We clear the transaction object and the trans handle when they are about to be
freed, it is unnecessary, cleanup it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
The delayed reference allocation is in the fast path of the IO, so use slabs
to improve the speed of the allocation.
And besides that, it can do check for leaked objects when the module is removed.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
This is required to get the reference clock used
by the gfx engine for things like timestamps. Fixes
support for GL extensions the use timestamps on
certain boards.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Smatch anlysis:
drivers/gpu/drm/radeon/atom.c:1242 atom_index_iio() error: potential null
dereference 'ctx->iio'. (kzalloc returns null)
Also cleaned up some checks before calls to kfree(). kfree(NULL) is OK.
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Michel Dänzer" <michel.daenzer@amd.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
On ARM we want these to be the same size on 32- and 64-bit.
This is an ABI change on ARM. X86 does not change.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Keir (Xen.org) <keir@xen.org>
Cc: Tim Deegan <tim@xen.org>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: xen-devel@lists.xen.org
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Including " lapic " in the kernel cmdline on an x86-64 kernel
makes it panic while parsing early params -- e.g. with no user
visible output.
Fix this bug by ensuring arg is non-NULL before passing it to
strncmp().
Reported-by: PaX Team <pageexec@freemail.hu>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1361303227-13174-1-git-send-email-minipli@googlemail.com
Cc: stable@vger.kernel.org # v3.8
Signed-off-by: Ingo Molnar <mingo@kernel.org>
