David Rientjes [Wed, 28 Mar 2012 21:42:41 +0000 (14:42 -0700)]
mm, coredump: fail allocations when coredumping instead of oom killing
The size of coredump files is limited by RLIMIT_CORE, however, allocating
large amounts of memory results in three negative consequences:
- the coredumping process may be chosen for oom kill and quickly deplete
all memory reserves in oom conditions preventing further progress from
being made or tasks from exiting,
- the coredumping process may cause other processes to be oom killed
without fault of their own as the result of a SIGSEGV, for example, in
the coredumping process, or
- the coredumping process may result in a livelock while writing to the
dump file if it needs memory to allocate while other threads are in
the exit path waiting on the coredumper to complete.
This is fixed by implying __GFP_NORETRY in the page allocator for
coredumping processes when reclaim has failed so the allocations fail and
the process continues to exit.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrea Arcangeli [Wed, 28 Mar 2012 21:42:40 +0000 (14:42 -0700)]
mm: thp: fix up pmd_trans_unstable() locations
pmd_trans_unstable() should be called before pmd_offset_map() in the
locations where the mmap_sem is held for reading.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Larry Woodman <lwoodman@redhat.com>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mark Salter <msalter@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Wed, 28 Mar 2012 21:42:40 +0000 (14:42 -0700)]
mm for fs: add truncate_pagecache_range()
Holepunching filesystems ext4 and xfs are using truncate_inode_pages_range
but forgetting to unmap pages first (ocfs2 remembers). This is not really
a bug, since races already require truncate_inode_page() to handle that
case once the page is locked; but it can be very inefficient if the file
being punched happens to be mapped into many vmas.
Provide a drop-in replacement truncate_pagecache_range() which does the
unmapping pass first, handling the awkward mismatch between arguments to
truncate_inode_pages_range() and arguments to unmap_mapping_range().
Note that holepunching does not unmap privately COWed pages in the range:
POSIX requires that we do so when truncating, but it's hard to justify,
difficult to implement without an i_size cutoff, and no filesystem is
attempting to implement it.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Ben Myers <bpm@sgi.com>
Cc: Alex Elder <elder@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Wed, 28 Mar 2012 21:42:39 +0000 (14:42 -0700)]
procfs: fix /proc/statm
bda7bad62bc4 ("procfs: speed up /proc/pid/stat, statm") broke /proc/statm
- 'text' is printed twice by mistake.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reported-by: Ulrich Drepper <drepper@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 28 Mar 2012 17:07:27 +0000 (10:07 -0700)]
Merge tag 'writeback-fixes' of git://git./linux/kernel/git/wfg/linux
Pull trivial writeback fixes from Wu Fengguang:
"They've been tested in linux-next for 20 days actually."
* tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
writeback: Remove outdated comment
fs: Remove bogus wait in write_inode_now()
Linus Torvalds [Wed, 28 Mar 2012 17:02:55 +0000 (10:02 -0700)]
Merge tag 'ext4_for_linus' of git://git./linux/kernel/git/tytso/ext4
Pull ext4 updates for 3.4 from Ted Ts'o:
"Ext4 commits for 3.3 merge window; mostly cleanups and bug fixes
The changes to export dirty_writeback_interval are from Artem's s_dirt
cleanup patch series. The same is true of the change to remove the
s_dirt helper functions which never got used by anyone in-tree. I've
run these changes by Al Viro, and am carrying them so that Artem can
more easily fix up the rest of the file systems during the next merge
window. (Originally we had hopped to remove the use of s_dirt from
ext4 during this merge window, but his patches had some bugs, so I
ultimately ended dropping them from the ext4 tree.)"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (66 commits)
vfs: remove unused superblock helpers
mm: export dirty_writeback_interval
ext4: remove useless s_dirt assignment
ext4: write superblock only once on unmount
ext4: do not mark superblock as dirty unnecessarily
ext4: correct ext4_punch_hole return codes
ext4: remove restrictive checks for EOFBLOCKS_FL
ext4: always set then trimmed blocks count into len
ext4: fix trimmed block count accunting
ext4: fix start and len arguments handling in ext4_trim_fs()
ext4: update s_free_{inodes,blocks}_count during online resize
ext4: change some printk() calls to use ext4_msg() instead
ext4: avoid output message interleaving in ext4_error_<foo>()
ext4: remove trailing newlines from ext4_msg() and ext4_error() messages
ext4: add no_printk argument validation, fix fallout
ext4: remove redundant "EXT4-fs: " from uses of ext4_msg
ext4: give more helpful error message in ext4_ext_rm_leaf()
ext4: remove unused code from ext4_ext_map_blocks()
ext4: rewrite punch hole to use ext4_ext_remove_space()
jbd2: cleanup journal tail after transaction commit
...
Linus Torvalds [Wed, 28 Mar 2012 17:01:29 +0000 (10:01 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
Pull Ceph updates for 3.4-rc1 from Sage Weil:
"Alex has been busy. There are a range of rbd and libceph cleanups,
especially surrounding device setup and teardown, and a few critical
fixes in that code. There are more cleanups in the messenger code,
virtual xattrs, a fix for CRC calculation/checks, and lots of other
miscellaneous stuff.
There's a patch from Amon Ott to make inos behave a bit better on
32-bit boxes, some decode check fixes from Xi Wang, and network
throttling fix from Jim Schutt, and a couple RBD fixes from Josh
Durgin.
No new functionality, just a lot of cleanup and bug fixing."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (65 commits)
rbd: move snap_rwsem to the device, rename to header_rwsem
ceph: fix three bugs, two in ceph_vxattrcb_file_layout()
libceph: isolate kmap() call in write_partial_msg_pages()
libceph: rename "page_shift" variable to something sensible
libceph: get rid of zero_page_address
libceph: only call kernel_sendpage() via helper
libceph: use kernel_sendpage() for sending zeroes
libceph: fix inverted crc option logic
libceph: some simple changes
libceph: small refactor in write_partial_kvec()
libceph: do crc calculations outside loop
libceph: separate CRC calculation from byte swapping
libceph: use "do" in CRC-related Boolean variables
ceph: ensure Boolean options support both senses
libceph: a few small changes
libceph: make ceph_tcp_connect() return int
libceph: encapsulate some messenger cleanup code
libceph: make ceph_msgr_wq private
libceph: encapsulate connection kvec operations
libceph: move prepare_write_banner()
...
Linus Torvalds [Wed, 28 Mar 2012 17:00:14 +0000 (10:00 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs
Pull ext3, UDF, and quota fixes from Jan Kara:
"A couple of ext3 & UDF fixes and also one improvement in quota
locking."
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
ext3: fix start and len arguments handling in ext3_trim_fs()
udf: Fix deadlock in udf_release_file()
udf: Fix file entry logicalBlocksRecorded
udf: Fix handling of i_blocks
quota: Make quota code not call tty layer with dqptr_sem held
udf: Init/maintain file entry checkpoint field
ext3: Update ctime in ext3_splice_branch() only when needed
ext3: Don't call dquot_free_block() if we don't update anything
udf: Remove unnecessary OOM messages
Linus Torvalds [Wed, 28 Mar 2012 16:58:38 +0000 (09:58 -0700)]
Merge tag 'for-linus-3.4-merge-window' of git://git./linux/kernel/git/ericvh/v9fs
Pull 9p changes for the 3.4 merge window from Eric Van Hensbergen.
* tag 'for-linus-3.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: statfs should not override server f_type
net/9p: handle flushed Tclunk/Tremove
net/9p: don't allow Tflush to be interrupted
Michel Lespinasse [Tue, 27 Mar 2012 00:32:44 +0000 (17:32 -0700)]
vfs: fix d_ancestor() case in d_materialize_unique
In d_materialise_unique() there are 3 subcases to the 'aliased dentry'
case; in two subcases the inode i_lock is properly released but this
does not occur in the -ELOOP subcase.
This seems to have been introduced by commit
1836750115f2 ("fix loop
checks in d_materialise_unique()").
Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: stable@vger.kernel.org # v3.0+
[ Added a comment, and moved the unlock to where we generate the -ELOOP,
which seems to be more natural.
You probably can't actually trigger this without a buggy network file
server - d_materialize_unique() is for finding aliases on non-local
filesystems, and the d_ancestor() case is for a hardlinked directory
loop.
But we should be robust in the case of such buggy servers anyway. ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 28 Mar 2012 01:36:38 +0000 (18:36 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux
Pull s390 patches part 2 from Martin Schwidefsky:
"Some minor improvements and one additional feature for the 3.4 merge
window: Hendrik added perf support for the s390 CPU counters."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
[S390] register cpu devices for SMP=n
[S390] perf: add support for s390x CPU counters
[S390] oprofile: Allow multiple users of the measurement alert interrupt
[S390] qdio: log all adapter characteristics
[S390] Remove unncessary export of arch_pick_mmap_layout
Linus Torvalds [Wed, 28 Mar 2012 01:29:53 +0000 (18:29 -0700)]
Merge branch 'for-linus-3.4-rc1' of git://git./linux/kernel/git/rw/uml
Pull UML changes from Richard Weinberger:
"Mostly bug fixes and cleanups"
* 'for-linus-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: (35 commits)
um: Update defconfig
um: Switch to large mcmodel on x86_64
MTD: Relax dependencies
um: Wire CONFIG_GENERIC_IO up
um: Serve io_remap_pfn_range()
Introduce CONFIG_GENERIC_IO
um: allow SUBARCH=x86
um: most of the SUBARCH uses can be killed
um: deadlock in line_write_interrupt()
um: don't bother trying to rebuild CHECKFLAGS for USER_OBJS
um: use the right ifdef around exports in user_syms.c
um: a bunch of headers can be killed by using generic-y
um: ptrace-generic.h doesn't need user.h
um: kill HOST_TASK_PID
um: remove pointless include of asm/fixmap.h from asm/pgtable.h
um: asm-offsets.h might as well come from underlying arch...
um: merge processor_{32,64}.h a bit...
um: switch close_chan() to struct line
um: race fix: initialize delayed_work *before* registering IRQ
um: line->have_irq is never checked...
...
Linus Torvalds [Wed, 28 Mar 2012 01:20:56 +0000 (18:20 -0700)]
Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
Pull arch/microblaze fixes from Michal Simek
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Handle TLB skip size dynamically
microblaze: Introduce TLB skip size
microblaze: Improve TLB calculation for small systems
microblaze: Extend space for compiled-in FDT to 32kB
microblaze: Clear all MSR flags on the first kernel instruction
microblaze: Use node name instead of compatible string
microblaze: Fix mapin_ram function
microblaze: Highmem support
microblaze: Use active regions
microblaze: Show more detailed information about memory
microblaze: Introduce fixmap
microblaze: mm: Fix lowmem max memory size limits
microblaze: mm: Use ZONE_DMA instead of ZONE_NORMAL
microblaze: trivial: Fix typo fault in timer.c
microblaze: Use vsprintf extention %pf with builtin_return_address
microblaze: Add PVR version string for MB 8.20.b and 8.30.a
microblaze: Fix makefile to work with latest toolchain
microblaze: Fix typo in early_printk.c
Linus Torvalds [Wed, 28 Mar 2012 01:17:02 +0000 (18:17 -0700)]
Merge branch 'platforms' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM platform updates from Russell King:
"This covers platform stuff for platforms I have a direct interest in
(iow, I have the hardware). Essentially:
- as we no longer support any other Acorn platforms other than RiscPC
anymore, we can collect all that code into mach-rpc.
- convert Acorn expansion card stuff to use IRQ allocation functions,
and get rid of NO_IRQ from there.
- cleanups to the ebsa110 platform to move some private stuff out of
its header files.
- large amount of SA11x0 updates:
- conversion of private DMA implementation to DMA engine support
(this actually gives us greater flexibility in drivers over the old
API.)
- re-worked ucb1x00 updates - convert to genirq, remove sa11x0
dependencies, fix various minor issues
- move platform specific sa11x0 framebuffer data into platform files
in arch/arm instead of keeping this in the driver itself
- update sa11x0 IrDA driver for DMA engine, and allow it to use DMA
for SIR transmissions as well as FIR
- rework sa1111 support for genirq, and irq allocation
- fix sa1111 IRQ support so it works again
- use sparse IRQ support
After this, I have one more pull request remaining from my current
set, which I think is going to be the most problematical as it
generates 8 conflicts."
Fixed up the trivial conflict in arch/arm/mach-rpc/Makefile as per
Russell.
* 'platforms' of git://git.linaro.org/people/rmk/linux-arm: (125 commits)
ARM: 7343/1: sa11x0: convert to sparse IRQ
ARM: 7342/2: sa1100: prepare for sparse irq conversion
ARM: 7341/1: input: prepare jornada720 keyboard and ts for sa11x0 sparse irq
ARM: 7340/1: rtc: sa1100: include mach/irqs.h instead of asm/irq.h
ARM: sa11x0: remove unused DMA controller definitions
ARM: sa11x0: remove old SoC private DMA driver
USB: sa1111: add hcd .reset method
USB: sa1111: add OHCI shutdown methods
USB: sa1111: reorganize ohci-sa1111.c
USB: sa1111: get rid of nasty printk(KERN_DEBUG "%s: ...", __FILE__)
USB: sa1111: sparse and checkpatch cleanups
ARM: sa11x0: don't static map sa1111
ARM: sa1111: use dev_err() rather than printk()
ARM: sa1111: cleanup sub-device registration and unregistration
ARM: sa1111: only setup DMA for DMA capable devices
ARM: sa1111: register sa1111 devices with dmabounce in bus notifier
ARM: sa1111: move USB interface register definitions to ohci-sa1111.c
ARM: sa1111: move PCMCIA interface register definitions to sa1111_generic.c
ARM: sa1111: move PS/2 interface register definitions to sa1111p2.c
ARM: sa1111: delete unused physical GPIO register definitions
...
Linus Torvalds [Tue, 27 Mar 2012 23:52:32 +0000 (16:52 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Name string overrun fix in gianfar driver from Joe Perches.
2) VHOST bug fixes from Michael S. Tsirkin and Nadav Har'El
3) Fix dependencies on xt_LOG netfilter module, from Pablo Neira Ayuso.
4) Fix RCU locking in xt_CT, also from Pablo Neira Ayuso.
5) Add a parameter to skb_add_rx_frag() so we can fix the truesize
adjustments in the drivers that use it. The individual drivers
aren't fixed by this commit, but will be dealt with using follow-on
commits. From Eric Dumazet.
6) Add some device IDs to qmi_wwan driver, from Andrew Bird.
7) Fix a potential rcu_read_lock() imbalancein rt6_fill_node(). From
Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: fix a potential rcu_read_lock() imbalance in rt6_fill_node()
net: add a truesize parameter to skb_add_rx_frag()
gianfar: Fix possible overrun and simplify interrupt name field creation
USB: qmi_wwan: Add ZTE (Vodafone) K3570-Z and K3571-Z net interfaces
USB: option: Ignore ZTE (Vodafone) K3570/71 net interfaces
USB: qmi_wwan: Add ZTE (Vodafone) K3565-Z and K4505-Z net interfaces
qlcnic: Bug fix for LRO
netfilter: nf_conntrack: permanently attach timeout policy to conntrack
netfilter: xt_CT: fix assignation of the generic protocol tracker
netfilter: xt_CT: missing rcu_read_lock section in timeout assignment
netfilter: cttimeout: fix dependency with l4protocol conntrack module
netfilter: xt_LOG: use CONFIG_IP6_NF_IPTABLES instead of CONFIG_IPV6
vhost: fix release path lockdep checks
vhost: don't forget to schedule()
tools/virtio: stub out strong barriers
tools/virtio: add linux/hrtimer.h stub
tools/virtio: add linux/module.h stub
Linus Torvalds [Tue, 27 Mar 2012 23:47:35 +0000 (16:47 -0700)]
Merge tag 'dt' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: device tree work" from Arnd Bergmann:
"Most of these patches convert code from using static platform data to
describing the hardware in the device tree. This is only the first
half of the changes for v3.4 because a lot of patches for this topic
came in the last week before the merge window.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
Fix up trivial conflicts in arch/arm/mach-vexpress/{Kconfig,core.h}
* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (86 commits)
Document: devicetree: add OF documents for arch-mmp
ARM: dts: append DTS file of pxa168
ARM: mmp: append OF support on pxa168
ARM: mmp: enable rtc clk in pxa168
i2c: pxa: add OF support
serial: pxa: add OF support
arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board
ARM: OMAP2+: Remove extra ifdefs for board-generic
ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected
ASoC: DT: Add digital microphone binding to PAZ00 board.
ARM: dt: Add ARM PMU to tegra*.dtsi
ARM: at91: at91sam9x5cm/dt: add leds support
ARM: at91: usb_a9g20/dt: add gpio-keys support
ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support
ARM: at91: at91sam9m10g45ek/dt: add leds support
ARM: at91: usb_a9g20/dt: add leds support
ARM: at91/pio: add new PIO3 features
ARM: at91: add sam9_smc.o to at91sam9x5 build
ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter
ARM: at91/tc: add device tree support to atmel_tclib
...
Linus Torvalds [Tue, 27 Mar 2012 23:41:24 +0000 (16:41 -0700)]
Merge tag 'drivers' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: driver specific updates" from Arnd Bergmann:
"These are all specific to some driver. They are typically the
platform side of a change in the drivers directory, such as adding a
new driver or extending the interface to the platform. In cases where
there is no maintainer for the driver, or the maintainer prefers to
have the platform changes in the same branch as the driver changes,
the patches to the drivers are included as well.
A much smaller set of driver updates that depend on other branches
getting merged first will be sent later.
The new export of tegra_chip_uid conflicts with other changes in
fuse.c. In rtc-sa1100.c, the global removal of IRQF_DISABLED
conflicts with the cleanup of the interrupt handling of that driver.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
Fixed up aforementioned trivial conflicts.
* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits)
ARM: SAMSUNG: change the name from s3c-sdhci to exynos4-sdhci
mmc: sdhci-s3c: add platform data for the second capability
ARM: SAMSUNG: support the second capability for samsung-soc
ARM: EXYNOS: add support DMA for EXYNOS4X12 SoC
ARM: EXYNOS: Add apb_pclk clkdev entry for mdma1
ARM: EXYNOS: Enable MDMA driver
regulator: Remove bq24022 regulator driver
rtc: sa1100: add OF support
pxa: magician/hx4700: Convert to gpio-regulator from bq24022
ARM: OMAP3+: SmartReflex: fix error handling
ARM: OMAP3+: SmartReflex: fix the use of debugfs_create_* API
ARM: OMAP3+: SmartReflex: micro-optimization for sanity check
ARM: OMAP3+: SmartReflex: misc cleanups
ARM: OMAP3+: SmartReflex: move late_initcall() closer to its argument
ARM: OMAP3+: SmartReflex: add missing platform_set_drvdata()
ARM: OMAP3+: hwmod: add SmartReflex IRQs
ARM: OMAP3+: SmartReflex: clear ERRCONFIG_VPBOUNDINTST only on a need
ARM: OMAP3+: SmartReflex: Fix status masking in ERRCONFIG register
ARM: OMAP3+: SmartReflex: Add a shutdown hook
ARM: OMAP3+: SmartReflex Class3: disable errorgen before disable VP
...
Conflicts:
arch/arm/mach-tegra/Makefile
arch/arm/mach-tegra/fuse.c
drivers/rtc/rtc-sa1100.c
Linus Torvalds [Tue, 27 Mar 2012 23:30:09 +0000 (16:30 -0700)]
Merge tag 'rpmsg' of git://git./linux/kernel/git/arm/arm-soc
Pull "remoteproc/rpmsg: new subsystem" from Arnd Bergmann:
"This new subsystem provides a common way to talk to secondary
processors on an SoC, e.g. a DSP, GPU or service processor, using
virtio as the transport. In the long run, it should replace a few
dozen vendor specific ways to do the same thing, which all never made
it into the upstream kernel. There is a broad agreement that rpmsg is
the way to go here and several vendors have started working on
replacing their own subsystems.
Two branches each add one virtio protocol number. Fortunately the
numbers were agreed upon in advance, so there are only context
changes.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
Fixed up trivial protocol number conflict due to the mentioned additions
next to each other.
* tag 'rpmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
remoteproc: cleanup resource table parsing paths
remoteproc: remove the hardcoded vring alignment
remoteproc/omap: remove the mbox_callback limitation
remoteproc: remove the single rpmsg vdev limitation
remoteproc: safer boot/shutdown order
remoteproc: remoteproc_rpmsg -> remoteproc_virtio
remoteproc: resource table overhaul
rpmsg: fix build warning when dma_addr_t is 64-bit
rpmsg: fix published buffer length in rpmsg_recv_done
rpmsg: validate incoming message length before propagating
rpmsg: fix name service endpoint leak
remoteproc/omap: two Kconfig fixes
remoteproc: make sure we're parsing a 32bit firmware
remoteproc: s/big switch/lookup table/
remoteproc: bail out if firmware has different endianess
remoteproc: don't use virtio's weak barriers
rpmsg: rename virtqueue_add_buf_gfp to virtqueue_add_buf
rpmsg: depend on EXPERIMENTAL
remoteproc: depend on EXPERIMENTAL
rpmsg: add Kconfig menu
...
Conflicts:
include/linux/virtio_ids.h
Linus Torvalds [Tue, 27 Mar 2012 23:27:28 +0000 (16:27 -0700)]
Merge tag 'boards' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: board specific updates" from Arnd Bergmann/Olof Johansson:
"These changes are all specific to one board only. We're trying to
keep the number of board files low, but generally board level updates
are ok on platforms that are working on moving towards DT based
probing, which will eventually lead to removing them.
The board-ams-delta.c board file gets a conflict between the removal
of ams_delta_config and the addition of a lot of other data. The
Kconfig file has two changes in the same line, and in exynos, the
power domain cleanup conflicts with the addition of the image sensor
device.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[olof: Amended a fix for a mismerge to board-omap4panda.c]
Signed-off-by: Olof Johansson <olof@lixom.net>"
Fixed up some fairly trivial conflicts manually.
* tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (82 commits)
i.MX35-PDK: Add Camera support
ARM : mx35: 3ds-board: add framebuffer device
pxa/hx4700: Remove pcmcia platform_device structure
ARM: pxa/hx4700: Reduce sleep mode battery discharge by 35%
ARM: pxa/hx4700: Remove unwanted request for GPIO105
ARM: EXYNOS: support Exynos4210-bus Devfreq driver on Nuri board
ARM: EXYNOS: Register JPEG on nuri
ARM: EXYNOS: Register JPEG on universal_c210
ARM: S5PV210: Enable JPEG on SMDKV210
ARM: S5PV210: Add JPEG board definition
ARM: EXYNOS: Enable JPEG on Origen
ARM: EXYNOS: Enable JPEG on SMDKV310
ARM: EXYNOS: Add __init attribute to universal_camera_init()
ARM: EXYNOS: Add __init attribute to nuri_camera_init()
ARM: S5PV210: Enable FIMC on SMDKC110
ARM: S5PV210: Enable FIMC on SMDKV210
ARM: S5PV210: Enable MFC on SMDKC110
ARM: S5PV210: Enable MFC on SMDKV210
ARM: EXYNOS: Enable G2D on SMDKV310
ARM: tegra: update defconfig
...
Linus Torvalds [Tue, 27 Mar 2012 23:14:44 +0000 (16:14 -0700)]
Merge tag 'soc' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: SoC specific updates" from Arnd Bergmann:
"These changes are all specific to an soc family or the code for one
soc. Lots of work for Tegra3 this time, but also a lot of other
platforms. There will be another (smaller) set of soc patches later
in the merge window for stuff that has dependencies on external trees
or that was sent just before the merge window opened.
The asoc tree added a few devices to the i.mx platform, which conflict
with other devices added in the same place here.
The tegra Makefile conflicts between a number of branches, mostly
because of changes regarding localtimer.c, which was removed in the
end.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
Fix up some trivial conflicts, including the mentioned Tegra Makefile.
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
ARM: EXYNOS: fix cycle count for periodic mode of clock event timers
ARM: EXYNOS: add support JPEG
ARM: EXYNOS: Add DMC1, allow PPMU access for DMC
ARM: SAMSUNG: Correct MIPI-CSIS io memory resource definition
ARM: SAMSUNG: fix __init attribute on regarding s3c_set_platdata()
ARM: SAMSUNG: Add __init attribute to samsung_bl_set()
ARM: S5PV210: Add usb otg phy control
ARM: S3C64XX: Add usb otg phy control
ARM: EXYNOS: Enable l2 configuration through device tree
ARM: EXYNOS: remove useless code to save/restore L2
ARM: EXYNOS: save L2 settings during bootup
ARM: S5P: add L2 early resume code
ARM: EXYNOS: Add support AFTR mode on EXYNOS4210
ARM: mx35: Setup the AIPS registers
ARM: mx5: Use common function for configuring AIPS
ARM: mx3: Setup AIPS registers
ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI
ARM: defconfig: imx_v6_v7: build in REGULATOR_FIXED_VOLTAGE
ARM: imx: update imx_v6_v7_defconfig
ARM: tegra: Demote EMC clock inconsistency BUG to WARN
...
Linus Torvalds [Tue, 27 Mar 2012 23:06:17 +0000 (16:06 -0700)]
Merge tag 'timer' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: timer cleanup work" from Arnd Bergmann:
"These are split out from the generic soc and driver updates because
there was a lot of conflicting work by multiple people. Marc Zyngier
worked on simplifying the "localtimer" interfaces, and some of the
platforms are touching the same code as they move to device tree based
booting.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
* tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (61 commits)
ARM: tegra: select USB_ULPI if USB is selected
arm/tegra: pcie: fix return value of function
ARM: ux500: fix compilation after local timer rework
ARM: shmobile: remove additional __io() macro use
ARM: local timers: make the runtime registration interface mandatory
ARM: local timers: convert MSM to runtime registration interface
ARM: local timers: convert exynos to runtime registration interface
ARM: smp_twd: remove old local timer interface
ARM: imx6q: convert to twd_local_timer_register() interface
ARM: highbank: convert to twd_local_timer_register() interface
ARM: ux500: convert to twd_local_timer_register() interface
ARM: shmobile: convert to twd_local_timer_register() interface
ARM: tegra: convert to twd_local_timer_register() interface
ARM: plat-versatile: convert to twd_local_timer_register() interface
ARM: OMAP4: convert to twd_local_timer_register() interface
ARM: smp_twd: add device tree support
ARM: smp_twd: add runtime registration support
ARM: local timers: introduce a new registration interface
ARM: smp_twd: make local_timer_stop a symbol instead of a #define
ARM: mach-shmobile: default to no earlytimer
...
Linus Torvalds [Tue, 27 Mar 2012 23:03:32 +0000 (16:03 -0700)]
Merge tag 'cleanup' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: global cleanups" from Arnd Bergmann:
"Quite a bit of code gets removed, and some stuff moved around, mostly
the old samsung s3c24xx stuff. There should be no functional changes
in this series otherwise. Some cleanups have dependencies on other
arm-soc branches and will be sent in the second round.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
Fixed up trivial conflicts mainly due to #include's being changes on
both sides.
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (121 commits)
ep93xx: Remove unnecessary includes of ep93xx-regs.h
ep93xx: Move EP93XX_SYSCON defines to SoC private header
ep93xx: Move crunch code to mach-ep93xx directory
ep93xx: Make syscon access functions private to SoC
ep93xx: Configure GPIO ports in core code
ep93xx: Move peripheral defines to local SoC header
ep93xx: Convert the watchdog driver into a platform device.
ep93xx: Use ioremap for backlight driver
ep93xx: Move GPIO defines to gpio-ep93xx.h
ep93xx: Don't use system controller defines in audio drivers
ep93xx: Move PHYS_BASE defines to local SoC header file
ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver
ARM: EXYNOS: add clock registers for exynos4x12-cpufreq
PM / devfreq: update the name of EXYNOS clock registers that were omitted
PM / devfreq: update the name of EXYNOS clock register
ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock
ARM: EXYNOS: use static declaration on regarding clock
ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs
ARM: OMAP2+: Fix build error after merge
ARM: S3C24XX: remove call to s3c24xx_setup_clocks
...
Linus Torvalds [Tue, 27 Mar 2012 22:56:42 +0000 (15:56 -0700)]
Merge tag 'maintainers' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: subarch maintainer updates" from Arnd Bergmann:
"This is a collection of updates to the MAINTAINERS file, separated out
mostly to give an overview of what has changed regarding who does
what.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
* tag 'maintainers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: tegra: update main repo and add patchwork
MAINTAINERS: update MAINTAINERS email entry
MAINTAINERS: update maintainer entry for pxa/hx4700
MAINTAINERS: ARM: tegra: update Stephen's email address
MAINTAINERS: add TI DaVinci git tree information
MAINTAINERS: mark TI DaVinci list as "moderated"
MAINTAINERS: remove arch/arm/mach-mx*/ from IMX entry
Linus Torvalds [Tue, 27 Mar 2012 22:55:54 +0000 (15:55 -0700)]
Merge tag 'fixes-non-critical' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: Non-critical bug fixes" from Ardn Bergmann:
"Simple bug fixes that were not considered important enough for
inclusion into 3.3. One bug fix was originally intended for 3.3 but
accidentally got missed, but is not marked stable because it should
only get backported once later fixes also make it into v3.4.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
* tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (66 commits)
iomux-mx25.h slew rate adjusted for LCD __LD pins
ARM: davinci: DA850: move da850_register_pm to .init.text
ARM: davinci: cpufreq: fix compiler warning
ARM: OMAP2+: Fix build for omap4 only builds with missing include of linux/bug.h
ARM: OMAP2+: Fix section warnings for hsmmc_init_one
ARM: OMAP2+: Fix build issues with missing include of linux/bug.h
ARM: OMAP2+: gpmc-smsc911x: only register regulator for first instance
ARM: OMAP3+: PM: VP: fix integer truncation error
ARM: OMAP2+: PM: fix wakeupgen warning when hotplug disabled
ARM: OMAP2+: PM: fix section mismatch with omap2_init_processor_devices()
ARM: OMAP2: Fix section warning for n8x0 when CONFIG_MMC_OMAP is not set
ARM: OMAP2+: Fix omap24xx_io_desc warning if SoC subtypes are not selected
ARM: OMAP1: Fix section mismatch for omap1_init_early()
ARM: OMAP1: Fix typo in lcd_dma.c
ARM: OMAP: mailbox: trivial whitespace fix
ARM: OMAP: Remove definition cpu_is_omap4430()
ARM: OMAP2+: included some headers twice
ARM: OMAP: clock.c: included linux/debugfs.h twice
ARM: OMAP: don't build hwspinlock in vain
ARM: OMAP2+: ads7846_init: put gpio_pendown into pdata if it's provided
...
Eric Dumazet [Tue, 27 Mar 2012 09:53:52 +0000 (09:53 +0000)]
net: fix a potential rcu_read_lock() imbalance in rt6_fill_node()
Commit
f2c31e32b378 (net: fix NULL dereferences in check_peer_redir() )
added a regression in rt6_fill_node(), leading to rcu_read_lock()
imbalance.
Thats because NLA_PUT() can make a jump to nla_put_failure label.
Fix this by using nla_put()
Many thanks to Ben Greear for his help
Reported-by: Ben Greear <greearb@candelatech.com>
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Sat, 24 Mar 2012 11:33:59 +0000 (11:33 +0000)]
Merge tag 'asoc-3.4' of git://git./linux/kernel/git/broonie/sound into next/boards
The asoc branch that was already merged into v3.4 contains some
board-level changes that conflict with patches we already have
here, so pull in that branch to resolve the conflicts.
Conflicts:
arch/arm/mach-imx/mach-imx27_visstrim_m10.c
arch/arm/mach-omap2/board-omap4panda.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[olof: Amended fix for mismerge as reported by Kevin Hilman]
Signed-off-by: Olof Johansson <olof@lixom.net>
Russell King [Sun, 25 Mar 2012 22:57:55 +0000 (23:57 +0100)]
Merge branches 'acorn', 'ebsa110' and 'sa11x0' into platforms
Russell King [Thu, 23 Feb 2012 13:29:33 +0000 (14:29 +0100)]
ARM: 7343/1: sa11x0: convert to sparse IRQ
Now that Neponset, UCB1x00 and SA1111 are all converted to use the IRQ
allocation interfaces, we can enable sparse IRQ support for SA11x0
platforms.
Rob Herring [Thu, 23 Feb 2012 23:06:51 +0000 (00:06 +0100)]
ARM: 7342/2: sa1100: prepare for sparse irq conversion
In preparation to convert SA1100 to sparse irq, set .nr_irqs for each machine
and explicitly include mach/irqs.h as needed.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rob Herring [Thu, 23 Feb 2012 13:28:36 +0000 (14:28 +0100)]
ARM: 7341/1: input: prepare jornada720 keyboard and ts for sa11x0 sparse irq
In preparation for sa11x0 sparse irq conversion, explicitly include
mach/irqs.h as it will not be included for sparse irq.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rob Herring [Thu, 23 Feb 2012 13:27:58 +0000 (14:27 +0100)]
ARM: 7340/1: rtc: sa1100: include mach/irqs.h instead of asm/irq.h
Since asm/irq.h may not include mach/irqs.h, include mach/irqs.h directly.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 25 Mar 2012 22:56:30 +0000 (23:56 +0100)]
Merge branch 'sa11x0-mcp' into sa11x0
Conflicts:
arch/arm/mach-sa1100/assabet.c
arch/arm/mach-sa1100/collie.c
arch/arm/mach-sa1100/generic.c
arch/arm/mach-sa1100/lart.c
arch/arm/mach-sa1100/shannon.c
Russell King [Sun, 25 Mar 2012 22:55:54 +0000 (23:55 +0100)]
Merge branch 'sa11x0-lcd' into sa11x0
Conflicts:
arch/arm/mach-sa1100/assabet.c
Russell King [Sun, 25 Mar 2012 22:55:23 +0000 (23:55 +0100)]
Merge branch 'sa11x0-mtd' into sa11x0
Russell King [Sat, 14 Jan 2012 16:57:02 +0000 (16:57 +0000)]
ARM: sa11x0: remove unused DMA controller definitions
Remove the new unused DMA controller definitions from mach/SA-1100.h.
These are now private to the SA-11x0 DMA engine driver and contained
within the driver.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Fri, 13 Jan 2012 12:07:24 +0000 (12:07 +0000)]
ARM: sa11x0: remove old SoC private DMA driver
Now that all users are converted over to using the DMA engine API,
we can get rid of the old platform dependent DMA driver.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 25 Mar 2012 22:54:52 +0000 (23:54 +0100)]
Merge branch 'sa11x0-ir' into sa11x0
Russell King [Sun, 25 Mar 2012 22:54:16 +0000 (23:54 +0100)]
Merge branch 'sa1111' into sa11x0
Conflicts:
arch/arm/common/sa1111.c
arch/arm/mach-sa1100/neponset.c
Fixed:
arch/arm/mach-sa1100/assabet.c
for the neponset changes
Eric Dumazet [Fri, 23 Mar 2012 23:59:33 +0000 (23:59 +0000)]
net: add a truesize parameter to skb_add_rx_frag()
skb_add_rx_frag() API is misleading.
Network skbs built with this helper can use uncharged kernel memory and
eventually stress/crash machine in OOM.
Add a 'truesize' parameter and then fix drivers in followup patches.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Sun, 25 Mar 2012 07:10:07 +0000 (07:10 +0000)]
gianfar: Fix possible overrun and simplify interrupt name field creation
Space allocated for int_name_<foo> is insufficient for
maximal device name, expand it.
Code to create int_name_<foo> is obscure, simplify it
by using sprintf.
Found by looking for unnecessary \ line continuations.
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Bird (Sphere Systems) [Sun, 25 Mar 2012 00:10:29 +0000 (00:10 +0000)]
USB: qmi_wwan: Add ZTE (Vodafone) K3570-Z and K3571-Z net interfaces
Now that we have the beginnings of an OSS method to use the network
interfaces on these USB broadband modems, add the ZTE manufactured
Vodafone items to the whitelist
Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Bird (Sphere Systems) [Sun, 25 Mar 2012 00:10:28 +0000 (00:10 +0000)]
USB: option: Ignore ZTE (Vodafone) K3570/71 net interfaces
These interfaces need to be handled by QMI/WWAN driver
Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Bird (Sphere Systems) [Sun, 25 Mar 2012 00:10:27 +0000 (00:10 +0000)]
USB: qmi_wwan: Add ZTE (Vodafone) K3565-Z and K4505-Z net interfaces
Now that we have the beginnings of an OSS method to use the network
interfaces on these USB broadband modems, add the ZTE manufactured
Vodafone items to the whitelist
Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Richard Weinberger [Sat, 24 Mar 2012 23:23:57 +0000 (00:23 +0100)]
um: Update defconfig
Enable ext4, cgroups and devtmpfs.
Signed-off-by: Richard Weinberger <richard@nod.at>
Richard Weinberger [Tue, 24 Jan 2012 19:09:12 +0000 (20:09 +0100)]
um: Switch to large mcmodel on x86_64
x86_64 UML is unable to load modules if more than 504MiB
of memory are used.
This happens because on x86_64 the UML process has a quite high
start address (typically around 0x6000000).
If UML's memory is larger than 504MiB VMALLOC_START happens to be after
0x8000000. This is no problem unless one loads a module which was built
with R_X86_64_32S relocations.
Symbols with a location > 0x8000000 cannot be used with R_X86_64_32S
To deal with this x86_64 UML has to be compiled with -mcmodel=large
such that no R_X86_64_32S relocations are used.
Signed-off-by: Richard Weinberger <richard@nod.at>
Reported-by: ì „í•˜ëŠ˜ <allskyee@gmail.com>
Richard Weinberger [Tue, 7 Feb 2012 00:22:50 +0000 (01:22 +0100)]
MTD: Relax dependencies
CONFIG_GENERIC_IO is just enough for the basic MTD stuff.
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Richard Weinberger [Tue, 7 Feb 2012 00:22:49 +0000 (01:22 +0100)]
um: Wire CONFIG_GENERIC_IO up
UML has no io memory but implements everything defined in
generic-asm/io.h.
Signed-off-by: Richard Weinberger <richard@nod.at>
Richard Weinberger [Tue, 7 Feb 2012 00:22:47 +0000 (01:22 +0100)]
um: Serve io_remap_pfn_range()
At some places io_remap_pfn_range() is needed.
UML has to serve it like all other archs do.
Signed-off-by: Richard Weinberger <richard@nod.at>
Richard Weinberger [Tue, 7 Feb 2012 00:22:46 +0000 (01:22 +0100)]
Introduce CONFIG_GENERIC_IO
There are situations where CONFIG_HAS_IOMEM is too restrictive.
For example CONFIG_MTD_NAND_NANDSIM depends on CONFIG_HAS_IOMEM
but it works perfectly fine if an architecture without io memory
just includes asm-generic/io.h or implements everything defined in it.
UML is such a corner case.
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 11 Feb 2012 11:15:50 +0000 (06:15 -0500)]
um: allow SUBARCH=x86
nicked from patch by dwmw2 back in July
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 11 Feb 2012 10:39:56 +0000 (05:39 -0500)]
um: most of the SUBARCH uses can be killed
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[richard@nod.at: Re-export SUBARCH in arch/um/Makefile]
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 11 Feb 2012 08:05:32 +0000 (03:05 -0500)]
um: deadlock in line_write_interrupt()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 11 Feb 2012 08:01:34 +0000 (03:01 -0500)]
um: don't bother trying to rebuild CHECKFLAGS for USER_OBJS
... just strip NOSTDINC_FLAGS out of it for those
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 11 Feb 2012 00:02:28 +0000 (19:02 -0500)]
um: use the right ifdef around exports in user_syms.c
... the same one that controls whether elf_aux.o is included into the
build, bringing the vsyscall_e... into it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Mon, 30 Jan 2012 21:32:09 +0000 (16:32 -0500)]
um: a bunch of headers can be killed by using generic-y
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Mon, 30 Jan 2012 21:31:53 +0000 (16:31 -0500)]
um: ptrace-generic.h doesn't need user.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Mon, 30 Jan 2012 21:30:48 +0000 (16:30 -0500)]
um: kill HOST_TASK_PID
just provide get_current_pid() to the userland side of things
instead of get_current() + manual poking in its results
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Mon, 21 Nov 2011 02:05:24 +0000 (21:05 -0500)]
um: remove pointless include of asm/fixmap.h from asm/pgtable.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sun, 20 Nov 2011 22:25:25 +0000 (17:25 -0500)]
um: asm-offsets.h might as well come from underlying arch...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sun, 20 Nov 2011 22:23:39 +0000 (17:23 -0500)]
um: merge processor_{32,64}.h a bit...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 10 Sep 2011 12:39:18 +0000 (08:39 -0400)]
um: switch close_chan() to struct line
... and switch chan_interrupt() to directly calling close_one_chan(),
so we can lose delay_free_irq argument of close_chan() as well.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 10 Sep 2011 12:17:04 +0000 (08:17 -0400)]
um: race fix: initialize delayed_work *before* registering IRQ
... since chan_interrupt() might schedule it if there's too much
incoming data. Kill task argument of chan_interrupt(), while
we are at it - it's always &line->task.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 10 Sep 2011 00:20:52 +0000 (20:20 -0400)]
um: line->have_irq is never checked...
looks like a half-arsed duplicate of line->enabled
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 10 Sep 2011 00:18:09 +0000 (20:18 -0400)]
um: chan_init_pri is dead now
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Thu, 8 Sep 2011 14:49:34 +0000 (10:49 -0400)]
um: switch users of ->chan_list to ->chan_{in,out} (easy cases)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Thu, 8 Sep 2011 11:07:26 +0000 (07:07 -0400)]
um: sorting out the chan mess, part 1
put references to in and out chans associated with line into
explicit struct chan * fields in it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 10 Sep 2011 00:08:48 +0000 (20:08 -0400)]
um: finally kill ->init_str leaks
now we can do that...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Sat, 10 Sep 2011 00:07:05 +0000 (20:07 -0400)]
um: get rid of lines_init()
move config-independent parts of initialization into
register_lines(), call setup_one_line() after it instead
of abusing ->init_str.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Fri, 9 Sep 2011 23:45:42 +0000 (19:45 -0400)]
um: switch line.c tty drivers to dynamic device creation
Current code doesn't update the symlinks in /sys/dev/char when we add/remove
tty lines. Fixing that allows to stop messing with ->valid before the driver
registration, which is a Good Thing(tm) - we shouldn't have it set before we
really have the things set up and ready for line_open().
We need tty_driver available to call tty_{un,}register_device(), so we just
stash a reference to it into struct line_driver.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Fri, 9 Sep 2011 23:14:02 +0000 (19:14 -0400)]
um: fix races between line_open() and line_config()
Pull parse_chan_pair() call into setup_one_line(), under the mutex.
We really don't want open() to succeed before parse_chan_pair() had
been done (or after it has failed, BTW). We also want "remove con<n>"
to free irqs, etc., same as "config con<n>=none".
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Fri, 9 Sep 2011 21:36:37 +0000 (17:36 -0400)]
um: convert count_lock to mutex, fix a race in line_open()
If two processes are opening the same line, the second to get
into line_open() will decide that it doesn't need to do anything
(correctly) or wait for anything. The latter, unfortunately,
is incorrect - the first opener might not be through yet. We
need to have exclusion covering the entire line_init(), including
the blocking parts. Moreover, the next patch will need to
widen the exclusion on mconsole side of things, also including
the blocking bits, so let's just convert that sucker to mutex...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Fri, 9 Sep 2011 21:25:00 +0000 (17:25 -0400)]
um: get rid of the init_prio mess
make line_setup() act on a separate array of conf strings + default conf,
have lines array initialized explicitly by that data, bury LINE_INIT()
macro from hell.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Fri, 9 Sep 2011 00:44:06 +0000 (20:44 -0400)]
um: switch line_config() to setup_one_line()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Fri, 9 Sep 2011 00:34:52 +0000 (20:34 -0400)]
um: switch line_remove() to setup_one_line()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Fri, 19 Aug 2011 01:40:03 +0000 (21:40 -0400)]
um: auxvec.h is never used
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Al Viro [Thu, 18 Aug 2011 22:04:41 +0000 (18:04 -0400)]
um: clean up the includes in ubd
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Geert Uytterhoeven [Fri, 27 Jan 2012 18:14:58 +0000 (19:14 +0100)]
uml/hostfs: Propagate dirent.d_type to filldir()
Currently the (optional) d_type member in struct dirent is always
DT_UNKNOWN on hostfs, which may confuse buggy software using readdir().
Make sure to propagate its value from the underlying filesystem if it's
available there.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Yong Zhang [Thu, 22 Sep 2011 08:58:46 +0000 (16:58 +0800)]
um: irq: Remove IRQF_DISABLED
Since commit [
e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [
b738a50a:
genirq: Warn when handler enables interrupts]).
So now this flag is a NOOP and can be removed.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Linus Torvalds [Sat, 24 Mar 2012 19:20:25 +0000 (12:20 -0700)]
Merge tag 'stable/for-linus-3.4-tag-two' of git://git./linux/kernel/git/konrad/xen
Pull more xen updates from Konrad Rzeszutek Wilk:
"One tiny feature that accidentally got lost in the initial git pull:
* Add fast-EOI acking of interrupts (clear a bit instead of
hypercall)
And bug-fixes:
* Fix CPU bring-up code missing a call to notify other subsystems.
* Fix reading /sys/hypervisor even if PVonHVM drivers are not loaded.
* In Xen ACPI processor driver: remove too verbose WARN messages, fix
up the Kconfig dependency to be a module by default, and add
dependency on CPU_FREQ.
* Disable CPU frequency drivers from loading when booting under Xen
(as we want the Xen ACPI processor to be used instead).
* Cleanups in tmem code."
* tag 'stable/for-linus-3.4-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/acpi: Fix Kconfig dependency on CPU_FREQ
xen: initialize platform-pci even if xen_emul_unplug=never
xen/smp: Fix bringup bug in AP code.
xen/acpi: Remove the WARN's as they just create noise.
xen/tmem: cleanup
xen: support pirq_eoi_map
xen/acpi-processor: Do not depend on CPU frequency scaling drivers.
xen/cpufreq: Disable the cpu frequency scaling drivers from loading.
provide disable_cpufreq() function to disable the API.
Rik van Riel [Sat, 24 Mar 2012 14:26:21 +0000 (10:26 -0400)]
Fix potential endless loop in kswapd when compaction is not enabled
We should only test compaction_suitable if the kernel is built with
CONFIG_COMPACTION, otherwise the stub compaction_suitable function will
always return COMPACT_SKIPPED and send kswapd into an infinite loop.
Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 24 Mar 2012 17:41:37 +0000 (10:41 -0700)]
Merge tag 'device-for-3.4' of git://git./linux/kernel/git/paulg/linux
Pull <linux/device.h> avoidance patches from Paul Gortmaker:
"Nearly every subsystem has some kind of header with a proto like:
void foo(struct device *dev);
and yet there is no reason for most of these guys to care about the
sub fields within the device struct. This allows us to significantly
reduce the scope of headers including headers. For this instance, a
reduction of about 40% is achieved by replacing the include with the
simple fact that the device is some kind of a struct.
Unlike the much larger module.h cleanup, this one is simply two
commits. One to fix the implicit <linux/device.h> users, and then one
to delete the device.h includes from the linux/include/ dir wherever
possible."
* tag 'device-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
device.h: audit and cleanup users in main include dir
device.h: cleanup users outside of linux/include (C files)
Linus Torvalds [Sat, 24 Mar 2012 17:24:31 +0000 (10:24 -0700)]
Merge tag 'module-for-3.4' of git://git./linux/kernel/git/paulg/linux
Pull cleanup of fs/ and lib/ users of module.h from Paul Gortmaker:
"Fix up files in fs/ and lib/ dirs to only use module.h if they really
need it.
These are trivial in scope vs the work done previously. We now have
things where any few remaining cleanups can be farmed out to arch or
subsystem maintainers, and I have done so when possible. What is
remaining here represents the bits that don't clearly lie within a
single arch/subsystem boundary, like the fs dir and the lib dir.
Some duplicate includes arising from overlapping fixes from
independent subsystem maintainer submissions are also quashed."
Fix up trivial conflicts due to clashes with other include file cleanups
(including some due to the previous bug.h cleanup pull).
* tag 'module-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
lib: reduce the use of module.h wherever possible
fs: reduce the use of module.h wherever possible
includecheck: delete any duplicate instances of module.h
Linus Torvalds [Sat, 24 Mar 2012 17:08:39 +0000 (10:08 -0700)]
Merge tag 'bug-for-3.4' of git://git./linux/kernel/git/paulg/linux
Pull <linux/bug.h> cleanup from Paul Gortmaker:
"The changes shown here are to unify linux's BUG support under the one
<linux/bug.h> file. Due to historical reasons, we have some BUG code
in bug.h and some in kernel.h -- i.e. the support for BUILD_BUG in
linux/kernel.h predates the addition of linux/bug.h, but old code in
kernel.h wasn't moved to bug.h at that time. As a band-aid, kernel.h
was including <asm/bug.h> to pseudo link them.
This has caused confusion[1] and general yuck/WTF[2] reactions. Here
is an example that violates the principle of least surprise:
CC lib/string.o
lib/string.c: In function 'strlcat':
lib/string.c:225:2: error: implicit declaration of function 'BUILD_BUG_ON'
make[2]: *** [lib/string.o] Error 1
$
$ grep linux/bug.h lib/string.c
#include <linux/bug.h>
$
We've included <linux/bug.h> for the BUG infrastructure and yet we
still get a compile fail! [We've not kernel.h for BUILD_BUG_ON.] Ugh -
very confusing for someone who is new to kernel development.
With the above in mind, the goals of this changeset are:
1) find and fix any include/*.h files that were relying on the
implicit presence of BUG code.
2) find and fix any C files that were consuming kernel.h and hence
relying on implicitly getting some/all BUG code.
3) Move the BUG related code living in kernel.h to <linux/bug.h>
4) remove the asm/bug.h from kernel.h to finally break the chain.
During development, the order was more like 3-4, build-test, 1-2. But
to ensure that git history for bisect doesn't get needless build
failures introduced, the commits have been reorderd to fix the problem
areas in advance.
[1] https://lkml.org/lkml/2012/1/3/90
[2] https://lkml.org/lkml/2012/1/17/414"
Fix up conflicts (new radeon file, reiserfs header cleanups) as per Paul
and linux-next.
* tag 'bug-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
kernel.h: doesn't explicitly use bug.h, so don't include it.
bug: consolidate BUILD_BUG_ON with other bug code
BUG: headers with BUG/BUG_ON etc. need linux/bug.h
bug.h: add include of it to various implicit C users
lib: fix implicit users of kernel.h for TAINT_WARN
spinlock: macroize assert_spin_locked to avoid bug.h dependency
x86: relocate get/set debugreg fcns to include/asm/debugreg.
Konrad Rzeszutek Wilk [Sat, 24 Mar 2012 13:18:57 +0000 (09:18 -0400)]
xen/acpi: Fix Kconfig dependency on CPU_FREQ
The functions: "acpi_processor_*" sound like they depend on CONFIG_ACPI_PROCESSOR
but in reality they are exposed when CONFIG_CPU_FREQ=[y|m]. As such
update the Kconfig to have this dependency and fix compile issues:
ERROR: "acpi_processor_unregister_performance" [drivers/xen/xen-acpi-processor.ko] undefined!
ERROR: "acpi_processor_notify_smm" [drivers/xen/xen-acpi-processor.ko] undefined!
ERROR: "acpi_processor_register_performance" [drivers/xen/xen-acpi-processor.ko] undefined!
ERROR: "acpi_processor_preregister_performance" [drivers/xen/xen-acpi-processor.ko] undefined!
Note: We still need the CONFIG_ACPI
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Russell King [Thu, 26 Jan 2012 11:45:27 +0000 (11:45 +0000)]
USB: sa1111: add hcd .reset method
Add the .reset method to the HCD, and update the .start method
accordingly for this change.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 26 Jan 2012 11:10:20 +0000 (11:10 +0000)]
USB: sa1111: add OHCI shutdown methods
Add OHCI shutdown methods to cleanly shutdown the OHCI controller on
system shutdowns and reboots. This avoids the controller continuing
to run should be soft-reboot the platform, potentially scribbling
over system memory.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 26 Jan 2012 10:52:34 +0000 (10:52 +0000)]
USB: sa1111: reorganize ohci-sa1111.c
Combine usb_hcd_sa1111_probe() and ohci_hcd_sa1111_drv_probe(), doing
the same for the remove methods.
Move sa1111_start_hc and sa1111_stop_hc to be located next to these
the probe/release functions, as they're only called from them.
Get rid of the /*----*/ breaker lines.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 26 Jan 2012 10:39:57 +0000 (10:39 +0000)]
USB: sa1111: get rid of nasty printk(KERN_DEBUG "%s: ...", __FILE__)
Use dev_dbg() instead, it's more friendly.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 26 Jan 2012 10:37:46 +0000 (10:37 +0000)]
USB: sa1111: sparse and checkpatch cleanups
Clean up the ohci-sa1111 driver formatting to be more compliant with
current standards, and add 'static' to various function definitions
to avoid sparse complaints about undeclared functions. Remove the
unnecessary local declaration of 'usb_disabled', which can be found
instead in linux/usb.h.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 29 Jan 2012 10:37:36 +0000 (10:37 +0000)]
ARM: sa11x0: don't static map sa1111
The sa1111 support will ioremap() the device; there is no need for
platforms to setup a static mapping for this. Remove the static
mapping for this device from badge4, jornada720 and neponset.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 29 Jan 2012 10:28:09 +0000 (10:28 +0000)]
ARM: sa1111: use dev_err() rather than printk()
Use dev_err() to report device specific errors rather than printk().
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 29 Jan 2012 10:20:00 +0000 (10:20 +0000)]
ARM: sa1111: cleanup sub-device registration and unregistration
Move the releasing of resources out of the release function - this
allows a cleaner and more conventional arrangement of the registration
failure paths and a saner unregistration process for these devices.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 29 Jan 2012 10:22:49 +0000 (10:22 +0000)]
ARM: sa1111: only setup DMA for DMA capable devices
It's pointless registering the PS/2 interfaces with the dmabounce code
when there's no DMA support for these in hardware, so only setup the
DMA masks for two subdevices which support DMA - the OHCI and SAC.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 29 Jan 2012 09:31:31 +0000 (09:31 +0000)]
ARM: sa1111: register sa1111 devices with dmabounce in bus notifier
Use the bus notifier to register sa1111 devices with dmabounce, rather
than after the device has been registered, potentially racing with
driver binding.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 16 Jan 2012 11:37:03 +0000 (11:37 +0000)]
ARM: sa1111: move USB interface register definitions to ohci-sa1111.c
Move the USB interface register definitions into the driver, rather
than keeping them in a common place.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 16 Jan 2012 11:32:09 +0000 (11:32 +0000)]
ARM: sa1111: move PCMCIA interface register definitions to sa1111_generic.c
Move the PCMCIA interface register definitions into the driver, rather
than keeping them in a common place.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 16 Jan 2012 11:29:43 +0000 (11:29 +0000)]
ARM: sa1111: move PS/2 interface register definitions to sa1111p2.c
Move the PS/2 interface register definitions into the driver, rather
than keeping them in a common location.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 16 Jan 2012 14:28:25 +0000 (14:28 +0000)]
ARM: sa1111: delete unused physical GPIO register definitions
Get rid of the unused GPIO register definitions - we access GPIO
registers through the base + offset method, and having the phys
address definitions is unnecessary duplication.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Arnd Bergmann [Sat, 24 Mar 2012 11:29:58 +0000 (11:29 +0000)]
Merge tag 'regulator-3.4' of git://git./linux/kernel/git/broonie/regulator into next/drivers
The pxa regulator branch removes the bq24022 driver, while a lot of
other regulator drivers got added in the regulator tree. This
resolves the trivial conflicts by merging in the regulator patches
that are already merged into v3.4.
Conflicts:
drivers/regulator/Kconfig
drivers/regulator/Makefile
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Russell King [Thu, 26 Jan 2012 13:34:21 +0000 (13:34 +0000)]
ARM: sa1111: provide a generic way to prevent devices from registering
Some platforms don't want certain devices to be registered, because,
eg, the interface is not wired. Provide a way for platforms to
prevent various devices from being registered via a devid bitmask in
the platform data.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>