09 Mar, 2012
5 commits
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Pull regulator fix from Mark Brown:
"Another small, clear fix in a specific driver."* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: tps65910: Configure correct value for VDDCTRL vout reg -
Pull minor devicetree bug fixes and documentation updates from Grant Likely:
"Fixes up a duplicate #include, adds an empty implementation of
of_find_compatible_node() and make git ignore .dtb files. And fix up
bus name on OF described PHYs. Nothing exciting here."* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
doc: dt: Fix broken reference in gpio-leds documentation
of/mdio: fix fixed link bus name
of/fdt.c: asm/setup.h included twice
of: add picochip vendor prefix
dt: add empty of_find_compatible_node function
ARM: devicetree: Add .dtb files to arch/arm/boot/.gitignore -
Pull SPI section mismatch bug fix for v3.3-rc3 from Grant Likely:
"Minor fix for pl022_dma_probe() function which was put in the wrong
section."* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
Fix section mismatch in spi-pl022.c -
Pull four hwmon patches from Guenter Roeck
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (jc42) Add support for AT30TS00, TS3000GB2, TSE2002GB2, and MCP9804
hwmon: (zl6100) Maintain delay parameter in driver instance data
hwmon: (pmbus_core) Fix maximum number of POUT alarm attributes
hwmon: (jc42) Add support for ST Microelectronics STTS2002 and STTS3000 -
Pull device-mapper fixes for 3.3 from Alasdair Kergon
Eight small device-mapper bug fixes.
* tag 'dm-3.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
dm raid: fix flush support
dm raid: set MD_CHANGE_DEVS when rebuilding
dm thin metadata: decrement counter after removing mapped block
dm thin metadata: unlock superblock in init_pmd error path
dm thin metadata: remove incorrect close_device on creation error paths
dm flakey: fix crash on read when corrupt_bio_byte not set
dm io: fix discard support
dm ioctl: do not leak argv if target message only contains whitespace
08 Mar, 2012
16 commits
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As per datasheet, the voltage output is defined as
from SEL[6:0] = 3 to 64 (dec)
Vout= (SEL[6:0] × 12.5 mV + 562.5 mV)The list_voltage returns the vout as
600mV + selector * 12.5mVand so equivalent VSEL is selector + 3.
Adding 3 on selector when configuring VSEL register for
VDDCTRL output.Signed-off-by: Laxman Dewangan
Signed-off-by: Mark Brown -
Fix dm-raid flush support.
Both md and dm have support for flush, but the dm-raid target
forgot to set the flag to indicate that flushes should be
passed on. (Important for data integrity e.g. with writeback cache
enabled.)Signed-off-by: Jonathan Brassow
Acked-by: Mike Snitzer
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon -
The 'rebuild' parameter is used to rebuild individual devices in an
array (e.g. resynchronize a RAID1 device or recalculate a parity device
in higher RAID). The MD_CHANGE_DEVS flag must be set when this
parameter is given in order to write out the superblocks and make the
change take immediate effect. The code that handles new devices in
super_load already sets MD_CHANGE_DEVS and 'FirstUse'. (The 'FirstUse'
flag was being set as a special case for rebuilds in
super_init_validation.)Add a condition for rebuilds in super_load to take care of both flags
without the special case in 'super_init_validation'.Signed-off-by: Jonathan Brassow
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon -
Correct the number of mapped sectors shown on a thin device's
status line by decrementing td->mapped_blocks in __remove() each time
a block is removed.Signed-off-by: Joe Thornber
Acked-by: Mike Snitzer
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon -
If dm_sm_disk_create() fails the superblock must be unlocked.
Signed-off-by: Joe Thornber
Acked-by: Mike Snitzer
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon -
The __open_device() error paths in __create_thin() and __create_snap()
incorrectly call __close_device() even if td was not initialized by
__open_device(). Remove this.Also document __open_device() return values, remove a redundant
td->changed = 1 in __create_thin(), and insert an additional
safeguard against creating an already-existing device.Signed-off-by: Mike Snitzer
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon -
The following BUG is hit on the first read that is submitted to a dm
flakey test device while the device is "down" if the corrupt_bio_byte
feature wasn't requested when the device's table was loaded.Example DM table that will hit this BUG:
0 2097152 flakey 8:0 2048 0 30This bug was introduced by commit a3998799fb4df0b0af8271a7d50c4269032397aa
(dm flakey: add corrupt_bio_byte feature) in v3.1-rc1.BUG: unable to handle kernel paging request at ffff8801cfce3fff
IP: [] corrupt_bio_data+0x6e/0xae [dm_flakey]
PGD 1606063 PUD 0
Oops: 0002 [#1] SMP
...
Call Trace:
[] flakey_end_io+0x42/0x48 [dm_flakey]
[] clone_endio+0x54/0xb6 [dm_mod]
[] bio_endio+0x2d/0x2f
[] req_bio_endio+0x96/0x9f
[] blk_update_request+0x1dc/0x3a9
[] ? rcu_read_unlock+0x21/0x23
[] blk_update_bidi_request+0x20/0x6e
[] blk_end_bidi_request+0x1f/0x5d
[] blk_end_request+0x10/0x12
[] scsi_io_completion+0x1e5/0x4b1
[] scsi_finish_command+0xec/0xf5
[] scsi_softirq_done+0xff/0x108
[] blk_done_softirq+0x84/0x98
[] __do_softirq+0xe3/0x1d5
[] ? _raw_spin_lock+0x62/0x69
[] ? handle_irq_event+0x4c/0x61
[] call_softirq+0x1c/0x30
[] do_softirq+0x4b/0xa3
[] irq_exit+0x53/0xca
[] do_IRQ+0x9d/0xb4
[] common_interrupt+0x73/0x73
...Signed-off-by: Mike Snitzer
Cc: stable@vger.kernel.org # 3.1+
Signed-off-by: Alasdair G Kergon -
This patch fixes a crash by recognising discards in dm_io.
Currently dm_mirror can send REQ_DISCARD bios if running over a
discard-enabled device and without support in dm_io the system
crashes badly.BUG: unable to handle kernel paging request at 00800000
IP: __bio_add_page.part.17+0xf5/0x1e0
...
bio_add_page+0x56/0x70
dispatch_io+0x1cf/0x240 [dm_mod]
? km_get_page+0x50/0x50 [dm_mod]
? vm_next_page+0x20/0x20 [dm_mod]
? mirror_flush+0x130/0x130 [dm_mirror]
dm_io+0xdc/0x2b0 [dm_mod]
...Introduced in 2.6.38-rc1 by commit 5fc2ffeabb9ee0fc0e71ff16b49f34f0ed3d05b4
(dm raid1: support discard).Signed-off-by: Milan Broz
Cc: stable@kernel.org
Acked-by: Mike Snitzer
Signed-off-by: Alasdair G Kergon -
If 'argc' is zero we jump to the 'out:' label, but this leaks the
(unused) memory that 'dm_split_args()' allocated for 'argv' if the
string being split consisted entirely of whitespace. Jump to the
'out_argv:' label instead to free up that memory.Signed-off-by: Jesper Juhl
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon -
Also update IDT datasheet locations.
Signed-off-by: Guenter Roeck
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Jean Delvare -
A global delay parameter has the side effect of being overwritten with 0 if a
single ZL2004 or ZL6105 is instantiated. If other chips supported by the same
driver are in the system, this will result in access errors for those chips.To solve the problem, keep a per-instance copy of the delay parameter, and do
not change the original parameter.Signed-off-by: Guenter Roeck
Cc: stable@vger.kernel.org # 3.1+
Acked-by: Jean Delvare -
There are up to three POUT alarm attributes, not two, since cap_alarm was added.
Reported-by: Michele Petracca
Cc: stable@vger.kernel.org # 3.0+ [3.0 will need backport]
Signed-off-by: Guenter Roeck -
These are fully compatible with Jedec JC 42.4 as far as I can see.
Signed-off-by: Jean Delvare
Cc: Guenter Roeck
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Guenter Roeck -
Pull ARM updates from Russell King.
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7358/1: perf: add PMU hotplug notifier
ARM: 7357/1: perf: fix overflow handling for xscale2 PMUs
ARM: 7356/1: perf: check that we have an event in the PMU IRQ handlers
ARM: 7355/1: perf: clear overflow flag when disabling counter on ARMv7 PMU
ARM: 7354/1: perf: limit sample_period to half max_period in non-sampling mode
ARM: ecard: ensure fake vma vm_flags is setup
ARM: 7346/1: errata: fix PL310 erratum #753970 workaround selection
ARM: 7345/1: errata: update workaround for A9 erratum #743622
ARM: 7348/1: arm/spear600: fix one-shot timer
ARM: 7339/1: amba/serial.h: Include types.h for resolving dependency of type bool -
Pull input updates from Dmitry Torokhov: "Just a few driver fixups,
nothing exciting."* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: wacom - fix 3rd-gen Bamboo MT when 4+ fingers are in use
Input: twl4030-vibra - use proper guard for PM methods
Input: evdev - fix variable initialisation
Input: wacom - add missing LEDS_CLASS to Kconfig
Input: ALPS - fix touchpad detection when buttons are pressed -
This reverts commit 8f2f748b0656257153bcf0941df8d6060acc5ca6.
It causes some odd regression that we have not figured out, and it's too
late in the -rc series to try to figure it out now.As reported by Konstantin Khlebnikov, it causes consistent hangs on his
laptop (Thinkpad x220: 2x cores + HT). They can be avoided by adding
calls to "rebuild_sched_domains();" in cpuset_cpu_[in]active() for the
CPU_{ONLINE/DOWN_FAILED/DOWN_PREPARE}_FROZEN cases, but it's not at all
clear why, and it makes no sense.Konstantin's config doesn't even have CONFIG_CPUSETS enabled, just to
make things even more interesting. So it's not the cpusets, it's just
the scheduling domains.So until this is understood, revert.
Bisected-reported-and-tested-by: Konstantin Khlebnikov
Acked-by: Peter Zijlstra
Acked-by: Ingo Molnar
Acked-by: Srivatsa S. Bhat
Signed-off-by: Linus Torvalds
07 Mar, 2012
19 commits
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When a CPU is taken out of reset, either cold booted or hotplugged in,
some of its PMU registers can contain UNKNOWN values.This patch adds a hotplug notifier to ARM core perf code so that upon
CPU restart the PMU unit is reset and becomes ready to use again.Signed-off-by: Lorenzo Pieralisi
Signed-off-by: Will Deacon
Signed-off-by: Russell King -
xscale2 PMUs indicate overflow not via the PMU control register, but by
a separate overflow FLAG register instead.This patch fixes the xscale2 PMU code to use this register to detect
to overflow and ensures that we clear any pending overflow when
disabling a counter.Cc:
Signed-off-by: Will Deacon
Signed-off-by: Russell King -
The PMU IRQ handlers in perf assume that if a counter has overflowed
then perf must be responsible. In the paranoid world of crazy hardware,
this could be false, so check that we do have a valid event before
attempting to dereference NULL in the interrupt path.Cc:
Signed-off-by: Ming Lei
Signed-off-by: Will Deacon
Signed-off-by: Russell King -
When disabling a counter on an ARMv7 PMU, we should also clear the
overflow flag in case an overflow occurred whilst stopping the counter.
This prevents a spurious overflow being picked up later and leading to
either false accounting or a NULL dereference.Cc:
Reported-by: Ming Lei
Signed-off-by: Will Deacon
Signed-off-by: Russell King -
On ARM, the PMU does not stop counting after an overflow and therefore
IRQ latency affects the new counter value read by the kernel. This is
significant for non-sampling runs where it is possible for the new value
to overtake the previous one, causing the delta to be out by up to
max_period events.Commit a737823d ("ARM: 6835/1: perf: ensure overflows aren't missed due
to IRQ latency") attempted to fix this problem by allowing interrupt
handlers to pass an overflow flag to the event update function, causing
the overflow calculation to assume that the counter passed through zero
when going from prev to new. Unfortunately, this doesn't work when
overflow occurs on the perf_task_tick path because we have the flag
cleared and end up computing a large negative delta.This patch removes the overflow flag from armpmu_event_update and
instead limits the sample_period to half of the max_period for
non-sampling profiling runs.Cc:
Signed-off-by: Ming Lei
Signed-off-by: Will Deacon
Signed-off-by: Russell King -
The message count field uses three bits of storage, not two.
Signed-off-by: Jason Gerecke
Acked-by: Chris Bagwell
Signed-off-by: Dmitry Torokhov -
Pull networking fixes from David Miller:
1) TCP can chop up SACK'd SKBs below below the unacked send sequence and
that breaks lots of stuff. Fix from Neal Cardwell.2) There is code in ipv6 to properly join and leave the all-routers
multicast code when the forwarding setting is changed, but once
forwarding is turned on, we don't do the join for newly registered
devices. Fix from Li Wei.3) Netfilter's NAT module autoload in ctnetlink drops a spinlock around
a sleeping call, problem is this code path doesn't actually hold that
lock. Fix from Pablo Neira Ayuso.4) TG3 uses the wrong interfaces to hook into the new byte queue limit
support. It uses the device level interfaces, which is fine for
single queue devices, but on more recent chips this driver supports
multiqueue so we have to use the multiqueue BQL APIs. Fix from Tom
Herbert.5) r8169 resume fix from Francois Romieu.
6) Add some cxgb4 device IDs, from Vipul Pandya.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
IPv6: Fix not join all-router mcast group when forwarding set.
caif-hsi: Set default MTU to 4096
cxgb4vf: Add support for Chelsio's T480-CR and T440-LP-CR adapters
cxgb4: Add support for Chelsio's T480-CR and T440-LP-CR adapters
mlx4_core: remove buggy sched_queue masking
netfilter: nf_conntrack: fix early_drop with reliable event delivery
bridge: netfilter: don't call iptables on vlan packets if sysctl is off
netfilter: bridge: fix wrong pointer dereference
netfilter: ctnetlink: remove incorrect spin_[un]lock_bh on NAT module autoload
netfilter: ebtables: fix wrong name length while copying to user-space
r8169: runtime resume before shutdown.
tcp: fix tcp_shift_skb_data() to not shift SACKed data below snd_una
tg3: Fix to use multi queue BQL interfaces -
It turns out that test-compiling this file on x86-64 doesn't really
help, because much of it is x86-32-specific. And so I hadn't noticed
the slightly over-eager removal of the 'r' from 'addr' variable despite
thinking I had tested it.Signed-off-by: Linus "oopsie" Torvalds
-
Several users of "find_vma_prev()" were not in fact interested in the
previous vma if there was no primary vma to be found either. And in
those cases, we're much better off just using the regular "find_vma()",
and then "prev" can be looked up by just checking vma->vm_prev.The find_vma_prev() semantics are fairly subtle (see Mikulas' recent
commit 83cd904d271b: "mm: fix find_vma_prev"), and the whole "return
prev by reference" means that it generates worse code too.Thus this "let's avoid using this inconvenient and clearly too subtle
interface when we don't really have to" patch.Cc: Mikulas Patocka
Cc: KOSAKI Motohiro
Signed-off-by: Linus Torvalds -
Pull CIFS fixes from Steve French
* git://git.samba.org/sfrench/cifs-2.6:
cifs: fix dentry refcount leak when opening a FIFO on lookup
CIFS: Fix mkdir/rmdir bug for the non-POSIX case -
Commit 6bd4837de96e ("mm: simplify find_vma_prev()") broke memory
management on PA-RISC.After application of the patch, programs that allocate big arrays on the
stack crash with segfault, for example, this will crash if compiled
without optimization:int main()
{
char array[200000];
array[199999] = 0;
return 0;
}The reason is that PA-RISC has up-growing stack and the stack is usually
the last memory area. In the above example, a page fault happens above
the stack.Previously, if we passed too high address to find_vma_prev, it returned
NULL and stored the last VMA in *pprev. After "simplify find_vma_prev"
change, it stores NULL in *pprev. Consequently, the stack area is not
found and it is not expanded, as it used to be before the change.This patch restores the old behavior and makes it return the last VMA in
*pprev if the requested address is higher than address of any other VMA.Signed-off-by: Mikulas Patocka
Acked-by: KOSAKI Motohiro
Signed-off-by: Linus Torvalds -
Xommit ac5637611(genirq: Unmask oneshot irqs when thread was not woken)
fails to unmask when a !IRQ_ONESHOT threaded handler is handled by
handle_level_irq.This happens because thread_mask is or'ed unconditionally in
irq_wake_thread(), but for !IRQ_ONESHOT interrupts never cleared. So
the check for !desc->thread_active fails and keeps the interrupt
disabled.Keep the thread_mask zero for !IRQ_ONESHOT interrupts.
Document the thread_mask magic while at it.
Reported-and-tested-by: Sven Joachim
Reported-and-tested-by: Stefan Lippers-Hollmann
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Gleixner
Signed-off-by: Linus Torvalds -
When forwarding was set and a new net device is register,
we need add this device to the all-router mcast group.Signed-off-by: Li Wei
Signed-off-by: David S. Miller -
Currently error is -ENOMEM when rejecting VM_GROWSDOWN|VM_GROWSUP
from shared anonymous: hoist the file case's -EINVAL up for both.Signed-off-by: Hugh Dickins
Signed-off-by: Linus Torvalds -
Default MTU for CAIF HSI was wrongly set to 15 * 4092 bytes.
The patch sets default MTU size to 4096.Signed-off-by: Sjur Brændeland
Signed-off-by: David S. Miller -
This patch adds PCI device ids for Chelsio's T480-CR and T440-LP-CR
adapters.Signed-off-by: Vipul Pandya
Signed-off-by: David S. Miller -
This patch adds PCI device ids for Chelsio's T480-CR and T440-LP-CR
adapters.Signed-off-by: Vipul Pandya
Signed-off-by: David S. Miller -
Fixes a bug introduced by commit fe9a2603c, where the priority bits
in the schedule queue field were masked out.Signed-off-by: Amir Vadai
Signed-off-by: Yevgeny Petrilin
Signed-off-by: David S. Miller -
If reliable event delivery is enabled and ctnetlink fails to deliver
the destroy event in early_drop, the conntrack subsystem cannot
drop any the candidate flow that was planned to be evicted.Reported-by: Kerin Millar
Signed-off-by: Pablo Neira Ayuso
Signed-off-by: David S. Miller
