Anton Blanchard [Sun, 18 Oct 2009 01:24:06 +0000 (01:24 +0000)]
powerpc: perf_event: Cleanup output by adding symbols
Add some dummy symbols for the branches at 0xf00, 0xf20 and 0xf40,
otherwise hits end up in trap_0e which is confusing to the user.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Sun, 18 Oct 2009 01:24:29 +0000 (01:24 +0000)]
powerpc: perf_event: Hide iseries_check_pending_irqs
If CONFIG_PPC_ISERIES isn't defined we end up with
iseries_check_pending_irqs and do_work at the same address.
perf ends up picking iseries_check_pending_irqs which creates
confusing backtraces. Hide it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Sun, 18 Oct 2009 01:23:28 +0000 (01:23 +0000)]
powerpc: perf_event: Cleanup copy_page output by hiding setup symbol
A lot of hits in "setup" doesn't make much sense, so hide this symbol and
allow all the hits to end up in copy_4k_page.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 26 Oct 2009 18:52:24 +0000 (18:52 +0000)]
powerpc: Export powerpc_debugfs_root
Kernel modules should be able to place their debug output inside our
powerpc debugfs directory.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 26 Oct 2009 18:51:57 +0000 (18:51 +0000)]
powerpc: Disable HCALL_STATS by default
The overhead of HCALL_STATS is quite high and the functionality is very
rarely used. Key statistics are also missing (eg min/max).
With the new hcall tracepoints much more powerful tracing can be done in
a kernel module. Lets disable this by default.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 26 Oct 2009 18:51:09 +0000 (18:51 +0000)]
powerpc: tracing: Give hypervisor call tracepoints access to arguments
While most users of the hcall tracepoints will only want the opcode
and return code, some will want all the arguments. To avoid the
complexity of using varargs we pass a pointer to the register save
area, which contains all the arguments.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 26 Oct 2009 18:50:29 +0000 (18:50 +0000)]
powerpc: tracing: Add hypervisor call tracepoints
Add hcall_entry and hcall_exit tracepoints. This replaces the inline
assembly HCALL_STATS code and converts it to use the new tracepoints.
To keep the disabled case as quick as possible, we embed a status word
in the TOC so we can get at it with a single load. By doing so we
keep the overhead at a minimum. Time taken for a null hcall:
No tracepoint code: 135.79 cycles
Disabled tracepoints: 137.95 cycles
For reference, before this patch enabling HCALL_STATS resulted in a null
hcall of 201.44 cycles!
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 26 Oct 2009 18:49:14 +0000 (18:49 +0000)]
powerpc: tracing: Add powerpc tracepoints for timer entry and exit
We can monitor the effectiveness of our power management of both the
kernel and hypervisor by probing the timer interrupt. For example, on
this box we see 10.37s timer interrupts on an idle core:
<idle>-0 [010] 3900.671297: timer_interrupt_entry: pt_regs=
c0000000ce1e7b10
<idle>-0 [010] 3900.671302: timer_interrupt_exit: pt_regs=
c0000000ce1e7b10
<idle>-0 [010] 3911.042963: timer_interrupt_entry: pt_regs=
c0000000ce1e7b10
<idle>-0 [010] 3911.042968: timer_interrupt_exit: pt_regs=
c0000000ce1e7b10
<idle>-0 [010] 3921.414630: timer_interrupt_entry: pt_regs=
c0000000ce1e7b10
<idle>-0 [010] 3921.414635: timer_interrupt_exit: pt_regs=
c0000000ce1e7b10
Since we have a 207MHz decrementer it will go negative and fire every 10.37s
even if Linux is completely idle.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 26 Oct 2009 18:47:42 +0000 (18:47 +0000)]
powerpc: tracing: Add powerpc tracepoints for interrupt entry and exit
This adds powerpc-specific tracepoints for interrupt entry and exit.
While we already have generic irq_handler_entry and irq_handler_exit
tracepoints there are cases on our virtualised powerpc machines where an
interrupt is presented to the OS, but subsequently handled by the hypervisor.
This means no OS interrupt handler is invoked.
Here is an example on a POWER6 machine with the patch below applied:
<idle>-0 [006] 3243.
949840744: irq_entry: pt_regs=
c0000000ce31fb10
<idle>-0 [006] 3243.
949850520: irq_exit: pt_regs=
c0000000ce31fb10
<idle>-0 [007] 3243.
950218208: irq_entry: pt_regs=
c0000000ce323b10
<idle>-0 [007] 3243.
950224080: irq_exit: pt_regs=
c0000000ce323b10
<idle>-0 [000] 3244.
021879320: irq_entry: pt_regs=
c000000000a63aa0
<idle>-0 [000] 3244.
021883616: irq_handler_entry: irq=87 handler=eth0
<idle>-0 [000] 3244.
021887328: irq_handler_exit: irq=87 return=handled
<idle>-0 [000] 3244.
021897408: irq_exit: pt_regs=
c000000000a63aa0
Here we see two phantom interrupts (no handler was invoked), followed
by a real interrupt for eth0. Without the tracepoints in this patch we
would have missed the phantom interrupts.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Sun, 18 Oct 2009 01:13:00 +0000 (01:13 +0000)]
powerpc: perf_event: Add alignment-faults and emulation-faults software events
Hook up the alignment-faults and emulation-faults events for powerpc.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 27 Oct 2009 18:46:55 +0000 (18:46 +0000)]
powerpc: Create PPC_WARN_ALIGNMENT to match PPC_WARN_EMULATED
perf_event wants a separate event for alignment and emulation faults,
so create another emulation event. This will make it easy to hook in
perf_event at one spot.
We pass in regs which will be required for these events.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Sun, 18 Oct 2009 01:09:29 +0000 (01:09 +0000)]
perf_event: Add alignment-faults and emulation-faults software events
Add two more software events that are common to many cpus.
Alignment faults: When a load or store is not aligned properly.
Emulation faults: When an instruction is emulated in software.
Both cause a very significant slowdown (100x or worse), so identifying and
fixing them is very important.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 27 Oct 2009 18:31:29 +0000 (18:31 +0000)]
powerpc: perf_event: Enable SDAR in continous sample mode
In continuous sampling mode we want the SDAR to update. While we can
select between dcache misses and ERAT (L1-TLB) misses, a decent default
is to enable both.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 21 Sep 2009 16:56:10 +0000 (16:56 +0000)]
powerpc: perf_event: Log invalid data addresses as all 1s
When we take an exception and the SDAR isn't synchronised we currently
log 0 as the address. Unfortunately this is a pretty common value, so
use ~0UL instead.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Linus Torvalds [Wed, 14 Oct 2009 22:36:19 +0000 (15:36 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: sbp2: provide fallback if mgt_ORB_timeout is missing
ieee1394: add documentation entry to MAINTAINERS
ieee1394: update URLs in debugging-via-ohci1394.txt
Linus Torvalds [Wed, 14 Oct 2009 22:34:55 +0000 (15:34 -0700)]
Merge branch 'tty-fixes'
* branch 'tty-fixes':
tty: use the new 'flush_delayed_work()' helper to do ldisc flush
workqueue: add 'flush_delayed_work()' to run and wait for delayed work
Make flush_to_ldisc properly handle parallel calls
Linus Torvalds [Wed, 14 Oct 2009 22:33:05 +0000 (15:33 -0700)]
Merge branch 'topic/x86-lds-nits' of git://git./linux/kernel/git/frob/linux-2.6-roland
* 'topic/x86-lds-nits' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland:
x86: linker script syntax nits
Linus Torvalds [Wed, 14 Oct 2009 22:31:48 +0000 (15:31 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
watchdog: Fix rio watchdog probe function
sparc64: Set IRQF_DISABLED on LDC channel IRQs.
sparc64: Fix D-cache flushing on swapin from SW devices.
sparc64: Fix niagara2 perf IRQ bits.
Linus Torvalds [Wed, 14 Oct 2009 22:31:15 +0000 (15:31 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] sclp_vt220 build fix
[S390] cio: change misleading console logic
[S390] call home support: fix proc handler
[S390] dasd: use idal for device characteristics
[S390] Add highgprs facility to /proc/cpuinfo
[S390] dasd: fix locking bug
[S390] tape390: Fix request queue handling in block driver
[S390] hypfs: Use subcode 6 if subcode 7 is not available
Linus Torvalds [Wed, 14 Oct 2009 22:30:45 +0000 (15:30 -0700)]
Merge branch 'sh/for-2.6.32' of git://git./linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fix a TRACE_IRQS_OFF typo.
sh: Optimize the setup_rt_frame() I-cache flush.
sh: Populate initial secondary CPU info from boot_cpu_data.
sh: Tidy up SMP cpuinfo.
sh: Use boot_cpu_data for FPU tests in sigcontext paths.
sh: ftrace: Fix up syscall tracepoint support.
sh: force dcache flush if dcache_dirty bit set.
sh: update die() output.
Linus Torvalds [Wed, 14 Oct 2009 22:25:35 +0000 (15:25 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
oprofile: warn on freeing event buffer too early
oprofile: fix race condition in event_buffer free
lockdep: Use cpu_clock() for lockstat
Linus Torvalds [Wed, 14 Oct 2009 22:25:23 +0000 (15:25 -0700)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf events: Update MAINTAINERS entry file patterns
perf tools: Remove static debugfs path from parse-events
perf tools: Fix the NO_64BIT build on pure 64-bit systems
perf tools: Fix const char type propagation
Linus Torvalds [Wed, 14 Oct 2009 22:25:04 +0000 (15:25 -0700)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Fix missing kernel-doc notation
Revert "x86, timers: Check for pending timers after (device) interrupts"
sched: Update the clock of runqueue select_task_rq() selected
Linus Torvalds [Wed, 14 Oct 2009 22:24:51 +0000 (15:24 -0700)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing/filters: Fix memory leak when setting a filter
tracing: fix trace_vprintk call
Linus Torvalds [Wed, 14 Oct 2009 22:24:32 +0000 (15:24 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86/paravirt: Use normal calling sequences for irq enable/disable
x86: fix kernel panic on 32 bits when profiling
x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop
x86, vmi: Mark VMI deprecated and schedule it for removal
Roland McGrath [Wed, 14 Oct 2009 21:16:38 +0000 (14:16 -0700)]
x86: linker script syntax nits
The linker scripts grew some use of weirdly wrong linker script syntax.
It happens to work, but it's not what the syntax is documented to be.
Clean it up to use the official syntax.
Signed-off-by: Roland McGrath <roland@redhat.com>
CC: Ian Lance Taylor <iant@google.com>
Stefan Richter [Wed, 7 Oct 2009 22:39:31 +0000 (00:39 +0200)]
firewire: sbp2: provide fallback if mgt_ORB_timeout is missing
The Unit_Characteristics entry of an SBP-2 unit directory is not
mandatory as far as I can tell. If it is missing, we would probably
fail to log in into the target because firewire-sbp2 would not wait for
status after it sent the login request.
The fix moves the cleanup of tgt->mgt_orb_timeout into a place where it
is executed exactly once before login, rather than 0..n times depending
on the target's config ROM. With targets with one or more
Unit_Characteristics entries, the result is the same as before.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Linus Torvalds [Wed, 14 Oct 2009 16:20:41 +0000 (09:20 -0700)]
tty: use the new 'flush_delayed_work()' helper to do ldisc flush
This way all flush_to_ldisc work is always done through the workqueues,
and we thus have a single point of serialization.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 14 Oct 2009 16:16:42 +0000 (09:16 -0700)]
workqueue: add 'flush_delayed_work()' to run and wait for delayed work
It basically turns a delayed work into an immediate work, and then waits
for it to finish.
Linus Torvalds [Wed, 14 Oct 2009 15:59:49 +0000 (08:59 -0700)]
Make flush_to_ldisc properly handle parallel calls
Michael Holzheu [Wed, 14 Oct 2009 10:43:51 +0000 (12:43 +0200)]
[S390] sclp_vt220 build fix
Fix this build error:
next-
20091013 randconfig build on s390x build breaks with
drivers/s390/built-in.o:(.data+0x3354): undefined reference to `sclp_vt220_pm_event_fn'
Reported-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <michael.holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Peter Oberparleiter [Wed, 14 Oct 2009 10:43:50 +0000 (12:43 +0200)]
[S390] cio: change misleading console logic
Use cio_is_console() in io_subchannel_probe to indicate that the
special handling is console specific. As long as there is no other
subchannel for which this might be true, it is misleading to speak
of "early devices". Should more of these devices be introduced,
a cleanup of all console special handling is in order anyway.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 14 Oct 2009 10:43:49 +0000 (12:43 +0200)]
[S390] call home support: fix proc handler
8d65af78 "sysctl: remove "struct file *" argument of ->proc_handler"
removed the struct file argument from all proc_handlers but didn't
change the call home proc handler (or call home was merged later).
So fix this now.
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Hans-Joachim Picht <hans@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Stefan Haberland [Wed, 14 Oct 2009 10:43:48 +0000 (12:43 +0200)]
[S390] dasd: use idal for device characteristics
If the rdc_buffer is above 2G we need indirect addresssing so we have
to use an idaw to give the rdc_buffer to the ccw.
If the rdc_buffer is under 2G nothing changes.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Andreas Krebbel [Wed, 14 Oct 2009 10:43:47 +0000 (12:43 +0200)]
[S390] Add highgprs facility to /proc/cpuinfo
This patch makes the hwcap bit for the high gprs feature to be visible
in /proc/cpuinfo.
Signed-off-by: Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Stefan Haberland [Wed, 14 Oct 2009 10:43:46 +0000 (12:43 +0200)]
[S390] dasd: fix locking bug
Replace spin_lock with spin_lock_irqsave in dasd_eckd_restore_device.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Michael Holzheu [Wed, 14 Oct 2009 10:43:45 +0000 (12:43 +0200)]
[S390] tape390: Fix request queue handling in block driver
When setting a channel attached tape online under Linux 2.6.31, the
"vol_id" process from udev hangs in sync_page():
2 sync_page+144 [0x1dfaac]
3 __wait_on_bit_lock+194 [0x58c23e]
4 __lock_page+116 [0x1df9dc]
5 truncate_inode_pages_range+728 [0x1ed7cc]
6 __blkdev_put+244 [0x25f738]
7 __fput+300 [0x229c4c]
8 filp_close+122 [0x225a3a]
The reason for that is an error in the request queue handling. It can
happen that we fetch a request, but do not process it further because
the number of queued requests exceeds TAPEBLOCK_MIN_REQUEUE.
To fix this, we should call blk_peek_request() instead of
blk_fetch_request() in the while condition and fetch the request in
the loop body afterwards.
This bug was introduced with the patch "block: implement and enforce
request peek/start/fetch" (
9934c8c04561413609d2bc38c6b9f268cba774a4)
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Michael Holzheu [Wed, 14 Oct 2009 10:43:44 +0000 (12:43 +0200)]
[S390] hypfs: Use subcode 6 if subcode 7 is not available
Hypfs never worked on systems that only provide D204 subcode 6.
In these cases we nevertheless used subcode 7. With this fix, we
use subcode 6, if it is available and the system does not provide
subcode 7.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Thomas Gleixner [Wed, 14 Oct 2009 08:18:26 +0000 (01:18 -0700)]
watchdog: Fix rio watchdog probe function
After sucessfully registering the misc device the driver iounmaps the
hardware registers and kfree's the device data structure. Ouch !
This was introduced with commit
e42311d75 (riowatchdog: Convert to
pure OF driver) and went unnoticed for more than a year :)
Return success instead of dropping into the error cleanup code path.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Mundt [Wed, 14 Oct 2009 06:50:28 +0000 (15:50 +0900)]
sh: Fix a TRACE_IRQS_OFF typo.
The resume_userspace path had TRACE_IRQS_OFF written incorrectly and so
never handled the transition properly. This was fixed once before but
seems to have made it back in the tree. Fix it for good.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Wed, 14 Oct 2009 05:21:40 +0000 (14:21 +0900)]
sh: Optimize the setup_rt_frame() I-cache flush.
This only needs to flush the return code via the legacy path, and just
invalidates uselessly otherwise. This makes the behaviour consistent for
all of the trampoline setup paths.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Wed, 14 Oct 2009 05:14:30 +0000 (14:14 +0900)]
sh: Populate initial secondary CPU info from boot_cpu_data.
The secondary CPU info was seeing corrupted results due to not entering
all of the setup paths taken by the boot CPU. So we just memcpy() the
boot cpu data over directly, and then fix up the per-CPU bits.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Wed, 14 Oct 2009 05:13:41 +0000 (14:13 +0900)]
sh: Tidy up SMP cpuinfo.
Trivial change for cleaning up the cpuinfo pretty printing on SMP, adds a
newline between CPUs.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Wed, 14 Oct 2009 05:12:41 +0000 (14:12 +0900)]
sh: Use boot_cpu_data for FPU tests in sigcontext paths.
We do not want to use smp_processor_id() from these paths, as they trip
preempt BUGs. Switch the test over to the boot cpu directly.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Linus Torvalds [Tue, 13 Oct 2009 17:21:33 +0000 (10:21 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cciss: Add cciss_allow_hpsa module parameter
cciss: Fix multiple calls to pci_release_regions
blk-settings: fix function parameter kernel-doc notation
writeback: kill space in debugfs item name
writeback: account IO throttling wait as iowait
elv_iosched_store(): fix strstrip() misuse
cfq-iosched: avoid probable slice overrun when idling
cfq-iosched: apply bool value where we return 0/1
cfq-iosched: fix think time allowed for seekers
cfq-iosched: fix the slice residual sign
cfq-iosched: abstract out the 'may this cfqq dispatch' logic
block: use proper BLK_RW_ASYNC in blk_queue_start_tag()
block: Seperate read and write statistics of in_flight requests v2
block: get rid of kblock_schedule_delayed_work()
cfq-iosched: fix possible problem with jiffies wraparound
cfq-iosched: fix issue with rq-rq merging and fifo list ordering
Linus Torvalds [Tue, 13 Oct 2009 17:21:12 +0000 (10:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: fix compile warnings
Linus Torvalds [Tue, 13 Oct 2009 17:20:53 +0000 (10:20 -0700)]
Merge git://git./linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
kbuild: revert "save ARCH & CROSS_COMPILE ..."
warn about use of uninstalled kernel headers
kbuild: mkcompile_h: trivial cleanups
kbuild: fix warning when domainname is not available
kbuild: Fix size_append issue for bzip2/lzma kernel
kbuild,scripts: use non-builtin echo for '-e'
kbuild: fix the binrpm-pkg target to work with KBUILD_OUTPUT set
Ingo Molnar [Mon, 12 Oct 2009 14:22:46 +0000 (16:22 +0200)]
headers: Fix build after <linux/sched.h> removal
Commit
d43c36dc6b357fa1806800f18aa30123c747a6d1 ("headers: remove
sched.h from interrupt.h") left some build errors in some configurations
due to drivers having depended on getting header files "accidentally".
Signed-off-by: Ingo Molnar <mingo@elte.hu>
[ Combined several one-liners from Ingo into one single patch - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 13 Oct 2009 17:10:33 +0000 (10:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: fix possible deadlock in hidraw_read
HID: fix kerneldoc comment for hid_input_report()
HID: add __init/__exit macros to twinhan.c
Linus Torvalds [Tue, 13 Oct 2009 17:10:18 +0000 (10:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Allow all formats as default for Nvidia HDMI
ALSA: aaci: ARM1176 aaci-pl041 AC97 register read timeout
ALSA: hda - Fix volume-knob setup for Dell laptops with STAC9228
ALSA: hda - Fix mute sound with STAC9227/9228 codecs
ALSA: bt87x - Add a whitelist for Pinnacle PCTV (11bd:0012)
ALSA: hda - Fix overflow of spec->init_verbs in patch_realtek.c
ALSA: ice1724 - Make call to set hw params succeed on ESI Juli@
ALSA: ice1724: Fix surround on Chaintech AV-710
ALSA: hda - Add full rates/formats support for Nvidia HDMI
Linus Torvalds [Tue, 13 Oct 2009 17:05:36 +0000 (10:05 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
ext3: Update documentation about ext3 quota mount options
ext3: Don't update superblock write time when filesystem is read-only
Linus Torvalds [Tue, 13 Oct 2009 17:05:04 +0000 (10:05 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sameo/mfd-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: Fix twl4030 boot with twl4030 usb transceiver enabled
Linus Torvalds [Tue, 13 Oct 2009 17:04:40 +0000 (10:04 -0700)]
Merge git://git.infradead.org/~dwmw2/iommu-2.6.32
* git://git.infradead.org/~dwmw2/iommu-2.6.32:
x86: Move pci_iommu_init to rootfs_initcall()
Run pci_apply_final_quirks() sooner.
Mark pci_apply_final_quirks() __init rather than __devinit
Rename pci_init() to pci_apply_final_quirks(), move it to quirks.c
intel-iommu: Yet another BIOS workaround: Isoch DMAR unit with no TLB space
intel-iommu: Decode (and ignore) RHSA entries
intel-iommu: Make "Unknown DMAR structure" message more informative
Takashi Iwai [Tue, 13 Oct 2009 14:09:56 +0000 (16:09 +0200)]
Merge branch 'fix/hda' into for-linus
Takashi Iwai [Tue, 13 Oct 2009 14:07:59 +0000 (16:07 +0200)]
ALSA: hda - Allow all formats as default for Nvidia HDMI
In the commit
f0613d5752d8f7d1d02e6d40947f38877fdf9c90
ALSA: hda - Add full rates/formats support for Nvidia HDMI
the flag LIMITIED_RATE_FMT_SUPPORT was set as default, as I forgot
to clear before commit.
Let's enable all formats/rates as default.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Philby John [Tue, 13 Oct 2009 11:00:22 +0000 (16:30 +0530)]
ALSA: aaci: ARM1176 aaci-pl041 AC97 register read timeout
After a reboot on an ARM1176 which amounts to a softreset, it has been
noted that the ALSA driver does not get registered and the probe fails
with the error "aaci-pl041 fpga:04: ac97 read back fail". In the process
of reading from a register the SL1TxBusy bit is set indicating that the
transceiver is busy and remains so until the default timeout occurs.
Set the Power down register 0x26 to an arbitrary value as specified in
the PL041 manual (page: 3-18) so that AACISL1TX/AACISL2TX registers take
their default state.
Signed-off-by: Philby John <pjohn@in.mvista.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Tue, 13 Oct 2009 13:32:21 +0000 (15:32 +0200)]
ALSA: hda - Fix volume-knob setup for Dell laptops with STAC9228
The volume-knob widget needs to be set with 0x7f instead of 0xff
for Dell laptops with STAC9228 codec, too, like the previous commit.
Reference: Novell bnc#545013
http://bugzilla.novell.com/show_bug.cgi?id=545013
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Sun, 11 Oct 2009 15:38:29 +0000 (17:38 +0200)]
ALSA: hda - Fix mute sound with STAC9227/9228 codecs
On FSC laptops, the sound gets muted gradually when the volume is chnaged.
This is due to the wrong volume-knob widget setup. The delta bit (bit 7)
shouldn't be set for these devices.
This patch adds a new quirk to set the value 0x7f to the widget 0x24
instead of 0xff.
Reference: Novell bnc#546006
http://bugzilla.novell.com/show_bug.cgi?id=546006
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Vincent Legoll [Tue, 13 Oct 2009 12:48:14 +0000 (14:48 +0200)]
perf events: Update MAINTAINERS entry file patterns
Add file patterns that match relevant files for this subsystem.
Signed-off-by: Vincent Legoll <vincent.legoll@gmail.com>
Cc: Linus Torvalds <torvalds@osdl.org>
Cc: paulus@samba.org
Cc: a.p.zijlstra@chello.nl
LKML-Reference: <4727185d0910130548p325f0185vf4e23b5491c730a0@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
David S. Miller [Tue, 13 Oct 2009 07:49:09 +0000 (00:49 -0700)]
sparc64: Set IRQF_DISABLED on LDC channel IRQs.
With lots of virtual devices it's easy to generate a lot of
events and chew up the kernel IRQ stack.
Reported-by: hyl <heyongli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Takashi Iwai [Tue, 13 Oct 2009 07:34:28 +0000 (09:34 +0200)]
ALSA: bt87x - Add a whitelist for Pinnacle PCTV (11bd:0012)
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Jeremy Fitzhardinge [Mon, 12 Oct 2009 23:32:43 +0000 (16:32 -0700)]
x86/paravirt: Use normal calling sequences for irq enable/disable
Bastian Blank reported a boot crash with stackprotector enabled,
and debugged it back to edx register corruption.
For historical reasons irq enable/disable/save/restore had special
calling sequences to make them more efficient. With the more
recent introduction of higher-level and more general optimisations
this is no longer necessary so we can just use the normal PVOP_
macros.
This fixes some residual bugs in the old implementations which left
edx liable to inadvertent clobbering. Also, fix some bugs in
__PVOP_VCALLEESAVE which were revealed by actual use.
Reported-by: Bastian Blank <bastian@waldi.eu.org>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
Cc: Xen-devel <xen-devel@lists.xensource.com>
LKML-Reference: <
4AD3BC9B.
7040501@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Stephen M. Cameron [Tue, 13 Oct 2009 07:18:22 +0000 (09:18 +0200)]
cciss: Add cciss_allow_hpsa module parameter
Add cciss_allow_hpsa module parameter. This parameter causes
the cciss driver to ignore any Smart Array devices known to be
supported by the hpsa driver.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Stephen M. Cameron [Tue, 13 Oct 2009 07:18:22 +0000 (09:18 +0200)]
cciss: Fix multiple calls to pci_release_regions
Fix multiple calls to pci_release_regions. If cciss_pci_init
fails, it already does any necessary call to pci_release_regions,
so this does not need to be done again in cciss_init_one in that
case.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Takashi Iwai [Tue, 13 Oct 2009 06:06:55 +0000 (08:06 +0200)]
ALSA: hda - Fix overflow of spec->init_verbs in patch_realtek.c
ALC861-VD lenovo model causes overflow of spec->init_verbs entries due to
the recent changes. Simply increase the array size to avoid the overflow.
Reported-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Li Zefan [Tue, 13 Oct 2009 01:28:57 +0000 (09:28 +0800)]
tracing/filters: Fix memory leak when setting a filter
Every time we set a filter, we leak memory allocated by
postfix_append_operand() and postfix_append_op().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: <stable@kernel.org> # for v2.6.31.x
LKML-Reference: <
4AD3D7D9.
4070400@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Paul Mundt [Tue, 13 Oct 2009 03:42:48 +0000 (12:42 +0900)]
sh: ftrace: Fix up syscall tracepoint support.
Sync up with latest core changes in the syscalls tracing area:
- tracing: Map syscall name to number (syscall_name_to_nr())
- tracing: Call arch_init_ftrace_syscalls at boot
- tracing: add support tracepoint ids (set_syscall_{enter,exit}_id())
Taken from the s390 change.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 13 Oct 2009 02:18:34 +0000 (11:18 +0900)]
sh: force dcache flush if dcache_dirty bit set.
This too follows the ARM change, given that the issue at hand applies to
all platforms that implement lazy D-cache writeback.
This fixes up the case when a page mapping disappears between the
flush_dcache_page() call (when PG_dcache_dirty is set for the page) and
the update_mmu_cache() call -- such as in the case of swap cache being
freed early. This kills off the mapping test in update_mmu_cache() and
switches to simply testing for PG_dcache_dirty.
Reported-by: Nitin Gupta <ngupta@vflare.org>
Reported-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 13 Oct 2009 01:57:52 +0000 (10:57 +0900)]
sh: update die() output.
This follows the ARM change, as SH had all of the same issues:
Make die() better match x86:
- add printing of the last accessed sysfs file
- ensure console_verbose() is called under the lock
- ensure we panic outside of oops_exit()
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Jan Kara [Thu, 17 Sep 2009 15:37:12 +0000 (17:37 +0200)]
ext3: Update documentation about ext3 quota mount options
Signed-off-by: Jan Kara <jack@suse.cz>
Theodore Ts'o [Wed, 16 Sep 2009 15:21:13 +0000 (11:21 -0400)]
ext3: Don't update superblock write time when filesystem is read-only
This avoids updating the superblock write time when we are mounting
the root file system read/only but we need to replay the journal; at
that point, for people who are east of GMT and who make their clock
tick in localtime for Windows bug-for-bug compatibility, and this will
cause e2fsck to complain and force a full file system check.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Linus Torvalds [Mon, 12 Oct 2009 21:38:34 +0000 (14:38 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: Prevent AER driver from being loaded on non-root port PCIE devices
PCI: get larger bridge ranges when space is available
PCI: pci.c: fix kernel-doc notation
PCI quirk: TI XIO200a erroneously reports support for fast b2b transfers
PCI PM: Read device power state from register after updating it
PCI: remove pci_assign_resource_fixed()
PCI: PCIe portdrv: remove "-driver" from driver name
Linus Torvalds [Mon, 12 Oct 2009 21:37:49 +0000 (14:37 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (24 commits)
ARM: force dcache flush if dcache_dirty bit set
[ARM] pxa: workaround errata #37 by not using half turbo switching
[ARM] pxamci: fix printing gpio numbers in pxamci_probe
[ARM] pxa/csb726: adjust duplicate structure field initialization
ARM: Add kmap_atomic type debugging
ARM: boolean bit testing
ARM: update die() output
ARM: Dump code/mem oops lines with the appropriate log level
ARM: Dump memory and backtrace as one printk per line
ARM: 5756/1: ep93xx: introduce clk parent
ARM: 5754/1: ep93xx: update i2c support
ARM: 5753/1: ep93xx: remove old EP93XX_GPIO_* defines
ARM: 5729/1: ep93xx: define EP93XX_*_PHYS_BASE with macros
ARM: 5751/1: ep93xx/micro9: Add Micro9-Slim
ARM: 5750/1: ep93xx/micro9: Update platform code
ARM: 5749/1: ep93xx/micro9: Update maintainer
ARM: 5752/1: SA1100: fix building of h3100
ARM: 5748/1: bcmring: fix build warning messages
ARM: 5747/1: Fix the start_pg value in free_memmap()
ARM: 5746/1: Handle possible translation errors in ARMv6/v7 coherent_user_range
...
Mike Frysinger [Mon, 12 Oct 2009 13:49:56 +0000 (09:49 -0400)]
USB: musb: invert arch depend string
The MUSB code relies on platform implementations that currently only
exists for Arm and Blackfin processors, so have the MUSB Kconfig depend
upon those arches.
This should prevent other arches from building MUSB via randconfig.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ingo Molnar [Mon, 12 Oct 2009 21:26:36 +0000 (23:26 +0200)]
Merge branch 'urgent' of git://git./linux/kernel/git/rric/oprofile into core/urgent
Ashwin Chaugule [Sun, 4 Oct 2009 22:49:34 +0000 (15:49 -0700)]
perf tools: Remove static debugfs path from parse-events
Timechart doesn't work if debugfs is not in /sys/kernel/debug/.
Fixed by using global debugfs_path which is filled in by perf.
Signed-off-by: Ashwin Chaugule <ashwinc@quicinc.com>
Cc: "Arjan van de Ven" <arjan@linux.intel.com>
LKML-Reference: <
a751bdc6978478de6d10440e587a2cc7.squirrel@www.codeaurora.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
H. Peter Anvin [Mon, 12 Oct 2009 18:32:31 +0000 (11:32 -0700)]
x86: fix kernel panic on 32 bits when profiling
Latest kernel has a kernel panic in booting on i386 machine when
profile=2 setting in cmdline. It is due to 'sp' being incorrect in
profile_pc().
BUG: unable to handle kernel NULL pointer dereference at
00000246
IP: [<
c01288b6>] profile_pc+0x2a/0x48
*pde =
00000000
Oops: 0000 [#1] SMP
This differs from the original version by Alex Shi in that we use the
kernel_stack_pointer() inline already defined in <asm/ptrace.h> for
this purpose, instead of #ifdef.
Originally-by: Alex Shi <alex.shi@intel.com>
Cc: "Chen, Tim C" <tim.c.chen@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Stefan Richter [Mon, 12 Oct 2009 15:26:12 +0000 (11:26 -0400)]
NFS: suppress a build warning
struct sockaddr_storage * can safely be used as struct sockaddr *.
Suppress an "incompatible pointer type" warning.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 12 Oct 2009 17:13:54 +0000 (19:13 +0200)]
tty, serial: Fix race and NULL check in uart_close()
Commit
46d57a449aa1 ("serial: use tty_port pointers in the core code")
contained two bugs that causes (rare) crashes:
- the rename typoed one site
- a NULL check was missed
Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Cc: Greg KH <gregkh@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nitin Gupta [Mon, 12 Oct 2009 08:50:23 +0000 (14:20 +0530)]
ARM: force dcache flush if dcache_dirty bit set
On ARM, update_mmu_cache() does dcache flush for a page only if
it has a kernel mapping (page_mapping(page) != NULL). The correct
behavior would be to force the flush based on dcache_dirty bit only.
One of the cases where present logic would be a problem is when
a RAM based block device[1] is used as a swap disk. In this case,
we would have in-memory data corruption as shown in steps below:
do_swap_page()
{
- Allocate a new page (if not already in swap cache)
- Issue read from swap disk
- Block driver issues flush_dcache_page()
- flush_dcache_page() simply sets PG_dcache_dirty bit and does not
actually issue a flush since this page has no user space mapping yet.
- Now, if swap disk is almost full, this newly read page is removed
from swap cache and corrsponding swap slot is freed.
- Map this page anonymously in user space.
- update_mmu_cache()
- Since this page does not have kernel mapping (its not in page/swap
cache and is mapped anonymously), it does not issue dcache flush
even if dcache_dirty bit is set by flush_dcache_page() above.
<user now gets stale data since dcache was never flushed>
}
Same problem exists on mips too.
[1] example:
- brd (RAM based block device)
- ramzswap (RAM based compressed swap device)
Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jan Beulich [Tue, 6 Oct 2009 15:32:43 +0000 (16:32 +0100)]
x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop
Move the trampoline and accessors back out of .cpuinit.* for the
case of 64-bits+ACPI_SLEEP.
This solves s2ram hangs reported in:
http://bugzilla.kernel.org/show_bug.cgi?id=14279
Reported-and-bisected-by: Christian Casteyde <casteyde.christian@free.fr>
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: <bugzilla-daemon@bugzilla.kernel.org>
Cc: "Andrew Morton" <akpm@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
David Woodhouse [Mon, 12 Oct 2009 11:59:29 +0000 (12:59 +0100)]
x86: Move pci_iommu_init to rootfs_initcall()
We want this to happen after the PCI quirks, which are now running at
the very end of the fs_initcalls.
This works around the BIOS problems which were originally addressed by
commit
db8be50c4307dac2b37305fc59c8dc0f978d09ea ('USB: Work around BIOS
bugs by quiescing USB controllers earlier'), which was reverted in
commit
d93a8f829fe1d2f3002f2c6ddb553d12db420412.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
David Woodhouse [Mon, 12 Oct 2009 11:51:22 +0000 (12:51 +0100)]
Run pci_apply_final_quirks() sooner.
Having this as a device_initcall() means that some real device drivers
can actually initialise _before_ the quirks are run, which is wrong.
We want it to run _before_ device_initcall(), but _after_ fs_initcall(),
since some arch-specific PCI initialisation like pcibios_assign_resources()
is done at fs_initcall().
We could use rootfs_initcall() but I actually want to use that for the
IOMMU initialisation, which has to come after the quirks, but still
before the real devices. So use fs_initcall_sync() instead -- since this
is entirely synchronous, it doesn't hurt that it'll escape the
synchronisation.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
David Woodhouse [Mon, 12 Oct 2009 11:50:34 +0000 (12:50 +0100)]
Mark pci_apply_final_quirks() __init rather than __devinit
It doesn't get invoked on hotplug; it can be thrown away after init.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
David Woodhouse [Mon, 12 Oct 2009 11:48:43 +0000 (12:48 +0100)]
Rename pci_init() to pci_apply_final_quirks(), move it to quirks.c
This function may have done more in the past, but all it does now is
apply the PCI_FIXUP_FINAL quirks. So name it sensibly and put it where
it belongs.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Russell King [Mon, 12 Oct 2009 13:38:08 +0000 (14:38 +0100)]
Merge branch 'fix' of git://git./linux/kernel/git/ycmiao/pxa-linux-2.6
Roger Quadros [Wed, 30 Sep 2009 15:26:37 +0000 (18:26 +0300)]
mfd: Fix twl4030 boot with twl4030 usb transceiver enabled
The usb regulator supplies (usb1v5, usb1v8 & usb3v1) must be available
before adding the twl4030_usb child, else twl4030_usb_ldo_init() will
always fail thus causing boot lock-up.
This patch fixes boot on OMAP systems using the twl4030 usb transceiver.
CONFIG_TWL4030_USB=y
Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
David S. Miller [Mon, 12 Oct 2009 10:20:57 +0000 (03:20 -0700)]
sparc64: Fix D-cache flushing on swapin from SW devices.
Thanks to tip form ARM folks and Russell King.
If flush_dcache_page() occurs on a swapin it will have a mapping
and we'll try to defer the flush by setting the dirty bit.
But when it hits update_dcache_page() we won't flush because the
page won't have a mapping any more. So remove the mapping
requirement in flush_dcache().
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Kosina [Mon, 12 Oct 2009 09:25:56 +0000 (11:25 +0200)]
HID: fix possible deadlock in hidraw_read
If the loop in hidraw_read() loops more than once, then we might
end up trying to acquire already locked mutex, casuing a deadlock.
Reported-by: iceberg <iceberg@ispras.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Randy Dunlap [Mon, 12 Oct 2009 02:12:00 +0000 (19:12 -0700)]
sched: Fix missing kernel-doc notation
The following htmldocs warnings:
Warning(kernel/sched.c:685): No description found for parameter 'cpu'
Warning(kernel/sched.c:3676): No description found for parameter 'sd'
Trigger because new parameters were added to update_rq_clock() and
update_group_power() without updating the kernel-doc notation.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
4AD29070.
7070002@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tejun Heo [Sun, 4 Oct 2009 00:31:05 +0000 (09:31 +0900)]
percpu: fix compile warnings
Fix the following two compile warnings which show up on i386.
mm/percpu.c:1873: warning: comparison of distinct pointer types lacks a cast
mm/percpu.c:1879: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'size_t'
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Ingo Molnar [Mon, 12 Oct 2009 07:57:25 +0000 (09:57 +0200)]
perf tools: Fix the NO_64BIT build on pure 64-bit systems
Randy Dunlap reported that 'make NO_64BIT=1' fails to build
a pure 32-b it binary on 64-bit/64-bit x86 systems.
The reason is that we dont pass in the -m32 and GCC defaults
to -m64.
So pass it in - and also extend the warning message about libelf
dependencies - glibc-dev[el] is needed as well beyond the libelf
library.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: Message-Id: <
20091005131729.
78444bfb.randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Dennis O'Brien [Sat, 10 Oct 2009 07:08:52 +0000 (15:08 +0800)]
[ARM] pxa: workaround errata #37 by not using half turbo switching
PXA27x Errata #37 implies system will hang when switching into or out of
half turbo (HT bit in CLKCFG) mode, workaround this by not using it.
Signed-off-by: Dennis O'Brien <dennis.obrien@eqware.net>
Cc: stable-2.6.31 <stable@kernel.org>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Antonio Ospite [Fri, 2 Oct 2009 14:24:02 +0000 (16:24 +0200)]
[ARM] pxamci: fix printing gpio numbers in pxamci_probe
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Julia Lawall [Wed, 16 Sep 2009 09:06:52 +0000 (11:06 +0200)]
[ARM] pxa/csb726: adjust duplicate structure field initialization
Currently the irq_type field of the csb726_lan_config structure is
initialized twice. The value in the first case,
SMSC911X_IRQ_POLARITY_ACTIVE_LOW, is normally stored in the irq_polarity
field, so I have renamed the field in the first initialization to that.
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Randy Dunlap [Mon, 5 Oct 2009 20:17:29 +0000 (13:17 -0700)]
perf tools: Fix const char type propagation
The following perf build warnings/errors in function
argument types:
builtin-sched.c:1894: warning: passing argument 1 of 'sort_dimension__add' discards qualifiers from pointer target type
util/trace-event-parse.c:685: warning: passing argument 2 of 'read_expected' discards qualifiers from pointer target type
util/trace-event-parse.c:741: warning: passing argument 4 of 'test_type_token' discards qualifiers from pointer target type
util/trace-event-parse.c:706: warning: passing argument 2 of 'read_expected_item' discards qualifiers from pointer target type
... trigger because older GCC is not able to prove that
sort_dimension__add() does not change the string.
Some goes for test_type_token().
Fix this by improving type consistency.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
20091005131729.
78444bfb.randy.dunlap@oracle.com>
[ Also remove ugly type cast now unnecessary. ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Randy Dunlap [Mon, 12 Oct 2009 06:20:47 +0000 (08:20 +0200)]
blk-settings: fix function parameter kernel-doc notation
Fix kernel-doc notation in blk-settings.c::blk_queue_max_discard_sectors().
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Linus Torvalds [Sun, 11 Oct 2009 22:57:57 +0000 (15:57 -0700)]
Revert "USB: Work around BIOS bugs by quiescing USB controllers earlier"
This reverts commit
db8be50c4307dac2b37305fc59c8dc0f978d09ea, as per
http://bugzilla.kernel.org/show_bug.cgi?id=14374
http://marc.info/?l=linux-kernel&m=
125446885705223&w=4
We simply can't do the USB handoff at FIXUP_HEADER time, since it will
often require us to have valid IO mappings etc. But that in turn
requires a whole different approach, not this trivial one-liner.
Maybe we could teach all the USB quirk handoff handlers to only do the
quirk if the device has all its registers set up (since if it isn't
initialized, it's unlikely to be active), but regardless that will need
a whole lot more code than just saying "let's do it really early".
The proper fix is almost certainly to just leave the legacy IOMMU
mappings active until after all devices have been initialized.
Reported-by: Nick Piggin <npiggin@suse.de>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 11 Oct 2009 21:43:56 +0000 (14:43 -0700)]
Linux 2.6.32-rc4
Yinghai Lu [Sun, 11 Oct 2009 21:17:16 +0000 (14:17 -0700)]
pci: increase alignment to make more space for hidden code
As reported in
http://bugzilla.kernel.org/show_bug.cgi?id=13940
on some system when acpi are enabled, acpi clears some BAR for some
devices without reason, and kernel will need to allocate devices for
them. It then apparently hits some undocumented resource conflict,
resulting in non-working devices.
Try to increase alignment to get more safe range for unassigned devices.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>