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2012-05-09ARM: OMAP: igep0020: fix smsc911x dummy regulator idEnrico Butera
id 0 is already used and causes errors at boot: WARNING: at fs/sysfs/dir.c:508 sysfs_add_one+0x9c/0xac() sysfs: cannot create duplicate filename '/devices/platform/reg-fixed-voltage.0' Fix it by using the next available one (id=1). This was caused by 5b3689f4 (ARM: OMAP2+: smsc911x: Add fixed board regulators) that did not account for some regulators already being used. Signed-off-by: Enrico Butera <ebutera@users.berlios.de> [tony@atomide.com: updated comments for regression causing commit] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-05-09perf annotate: shorten helpline so it fits in visible spaceDavid Ahern
Additional toggles have pushed the help line out of view on a modestly sized terminal (120 columns wide). Shorten it to just reminders. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1336510879-64610-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-09perf record: Reset event name when falling back to cpu-clockDavid Ahern
perf-record defaults to the H/W cycles event and if it is not supported falls back to cpu-clock. Reset the event name as well. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1336495811-58461-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-09perf top: Update event name when falling back to cpu-clockDavid Ahern
The 'perf top' command falls back to cpu-clock if the H/W cycles event is not supported, but the event name is not updated leading to a misleading header: PerfTop: 8 irqs/sec kernel:75.0% exact: 0.0% [1000Hz cycles], ... Update the event name when the event type is changed so that the header displays correctly: PerfTop: 794 irqs/sec kernel:100.0% exact: 0.0% [1000Hz cpu-clock], ... Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1336495789-58420-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-09perf stat: handle ENXIO error for perf_event_openDavid Ahern
perf stat on PPC currently fails to run: $ perf stat -- sleep 1 Error: open_counter returned with 6 (No such device or address). /bin/dmesg may provide additional information. Fatal: Not all events could be opened. The problem is that until 2.6.37 (behavior changed with commit b0a873e) perf on PPC returns ENXIO when hw_perf_event_init() fails. With this patch we get the expected behavior: $ perf stat -v -- sleep 1 cycles event is not supported by the kernel. stalled-cycles-frontend event is not supported by the kernel. stalled-cycles-backend event is not supported by the kernel. instructions event is not supported by the kernel. branches event is not supported by the kernel. branch-misses event is not supported by the kernel. ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1336490956-57145-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-09perf record: Fix fallback to cpu-clock on ppcDavid Ahern
perf-record on PPC is not falling back to cpu-clock: $ perf record -ag -fo /tmp/perf.data -- sleep 1 Error: sys_perf_event_open() syscall returned with 6 (No such device or address). /bin/dmesg may provide additional information. Fatal: No CONFIG_PERF_EVENTS=y kernel support configured? The problem is that until 2.6.37 (behavior changed with commit b0a873e) perf on PPC returns ENXIO when hw_perf_event_init() fails. With this patch we get the expected behavior: $ perf record -ag -fo /tmp/perf.data -v -- sleep 1 Old kernel, cannot exclude guest or host samples. The cycles event is not supported, trying to fall back to cpu-clock-ticks [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.151 MB /tmp/perf.data (~6592 samples) ] Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1336490937-57106-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-09regmap: fix possible memory corruption in regmap_bulk_read()Laxman Dewangan
The function regmap_bulk_read() calls the regmap_read() for each register if set of register has volatile and cache is enabled. In this case, last few register read makes the memory corruption if the register size is not the size of unsigned int. The regam_read() takes argument as unsigned int for returning value and it update the value as *val = map->format.parse_val(map->work_buf); This causes complete 4 bytes (size of unsigned int) to get written. Now if client pass the memory pointer for value which is equal to the required size of register count in regmap_bulk_read() then last few register read actually update the memory beyond passed pointer size. Avoid this by using local variable for read and then do memcpy() for actual byte copy to passed pointer based on register size. I allocated one pointer ptr and take first 16 bytes dump of that pointer then call regmap_bulk_read() with pointer which is just on top of this allocated pointer and register count of 128. Here register size is 1 byte. The memory trace of last 5 register read are as follows: [ 5.438589] regmap_bulk_read after regamp_read() for register 122 [ 5.447421] 0xef993c20 0xef993c00 0x00000000 0x00000001 [ 5.467535] regmap_bulk_read after regamp_read() for register 123 [ 5.476374] 0xef993c20 0xef993c00 0x00000000 0x00000001 [ 5.496425] regmap_bulk_read after regamp_read() for register 124 [ 5.505260] 0xef993c20 0xef993c00 0x00000000 0x00000001 [ 5.525372] regmap_bulk_read after regamp_read() for register 125 [ 5.534205] 0xef993c00 0xef993c00 0x00000000 0x00000001 [ 5.554258] regmap_bulk_read after regamp_read() for register 126 [ 5.563100] 0xef990000 0xef993c00 0x00000000 0x00000001 [ 5.554258] regmap_bulk_read after regamp_read() for register 127 [ 5.587108] 0xef000000 0xef993c00 0x00000000 0x00000001 Here it is observed that the memory content at first word started changing on last 3 regmap_read() and so corruption happened. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-09perf report: Fix format string for x86-32 compilationJiri Olsa
Using PRIu64 for printing out u64 nr_events to fix compilation for x86 32 bits. Cc: Arun Sharma <asharma@fb.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Frank C. Eigler <fche@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/1335958638-5160-7-git-send-email-jolsa@redhat.com Signed-off-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-09ARM: Remove ARMv3 support from decompressorRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-09sched, perf: Use a single callback into the schedulerPeter Zijlstra
We can easily use a single callback for both sched-in and sched-out. This reduces the code footprint in the scheduler path as well as removes the PMU black spot otherwise present between the out and in callback. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-o56ajxp1edwqg6x9d31wb805@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Fix usage of IBS op current countRobert Richter
The value of IbsOpCurCnt rolls over when it reaches IbsOpMaxCnt. Thus, it is reset to zero by hardware. To get the correct count we need to add the max count to it in case we received an ibs sample (valid bit set). Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-13-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Catch spurious interrupts after stopping IBSRobert Richter
After disabling IBS there could be still incomming NMIs with samples that even have the valid bit cleared. Mark all this NMIs as handled to avoid spurious interrupt messages. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-12-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Implement workaround for IBS erratum #420Robert Richter
When disabling ibs there might be the case where hardware continuously generates interrupts. This is described in erratum #420 (Instruction- Based Sampling Engine May Generate Interrupt that Cannot Be Cleared). To avoid this we must clear the counter mask first and then clear the enable bit. This patch implements this. See Revision Guide for AMD Family 10h Processors, Publication #41322. Note: We now keep track of the last read ibs config value which is then used to disable ibs. To update the config value we pass now a pointer to the functions reading it. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-11-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Extend hw period that triggers overflowRobert Richter
If the last hw period is too short we might hit the irq handler which biases the results. Thus try to have a max last period that triggers the sw overflow. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-10-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Trigger overflow if remaining period is too smallRobert Richter
There are cases where the remaining period is smaller than the minimal possible value. In this case the counter is restarted with the minimal period. This is of no use as the interrupt handler will trigger immediately again and most likely hits itself. This biases the results. So, if the remaining period is within the min range, we better do not restart the counter and instead trigger the overflow. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-9-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Rename some variablesRobert Richter
Simple patch that just renames some variables for better understanding. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-8-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Precise event sampling with IBS for AMD CPUsRobert Richter
This patch adds support for precise event sampling with IBS. There are two counting modes to count either cycles or micro-ops. If the corresponding performance counter events (hw events) are setup with the precise flag set, the request is redirected to the ibs pmu: perf record -a -e cpu-cycles:p ... # use ibs op counting cycle count perf record -a -e r076:p ... # same as -e cpu-cycles:p perf record -a -e r0C1:p ... # use ibs op counting micro-ops Each ibs sample contains a linear address that points to the instruction that was causing the sample to trigger. With ibs we have skid 0. Thus, ibs supports precise levels 1 and 2. Samples are marked with the PERF_EFLAGS_EXACT flag set. In rare cases the rip is invalid when IBS was not able to record the rip correctly. Then the PERF_EFLAGS_EXACT flag is cleared and the rip is taken from pt_regs. V2: * don't drop samples in precise level 2 if rip is invalid, instead support the PERF_EFLAGS_EXACT flag Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120502103309.GP18810@erda.amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Take instruction pointer from ibs sampleRobert Richter
Each IBS sample contains a linear address of the instruction that caused the sample to trigger. This address is more precise than the rip that was taken from the interrupt handler's stack. Update the rip with that address. We use this in the next patch to implement precise-event sampling on AMD systems using IBS. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-6-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Fix frequency profilingRobert Richter
Fixing profiling at a fixed frequency, in this case the freq value and sample period was setup incorrectly. Since sampling periods are adjusted we also allow periods that have lower 4 bits set. Another fix is the setup of the hw counter: If we modify hwc->sample_period, we also need to update hwc->last_period and hwc->period_left. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-5-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Enable ibs op micro-ops counting modeRobert Richter
Allow enabling ibs op micro-ops counting mode. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-4-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf: Pass last sampling period to perf_sample_data_init()Robert Richter
We always need to pass the last sample period to perf_sample_data_init(), otherwise the event distribution will be wrong. Thus, modifiyng the function interface with the required period as argument. So basically a pattern like this: perf_sample_data_init(&data, ~0ULL); data.period = event->hw.last_period; will now be like that: perf_sample_data_init(&data, ~0ULL, event->hw.last_period); Avoids unininitialized data.period and simplifies code. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-3-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09perf/x86-ibs: Fix update of periodRobert Richter
The last sw period was not correctly updated on overflow and thus led to wrong distribution of events. We always need to properly initialize data.period in struct perf_sample_data. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-2-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09Merge branch 'perf/x86-ibs' into perf/coreIngo Molnar
2012-05-09sched/numa: Rewrite the CONFIG_NUMA sched domain supportPeter Zijlstra
The current code groups up to 16 nodes in a level and then puts an ALLNODES domain spanning the entire tree on top of that. This doesn't reflect the numa topology and esp for the smaller not-fully-connected machines out there today this might make a difference. Therefore, build a proper numa topology based on node_distance(). Since there's no fixed numa layers anymore, the static SD_NODE_INIT and SD_ALLNODES_INIT aren't usable anymore, the new code tries to construct something similar and scales some values either on the number of cpus in the domain and/or the node_distance() ratio. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Anton Blanchard <anton@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: David Howells <dhowells@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: linux-alpha@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-sh@vger.kernel.org Cc: Matt Turner <mattst88@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Henderson <rth@twiddle.net> Cc: sparclinux@vger.kernel.org Cc: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Greg Pearson <greg.pearson@hp.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: bob.picco@oracle.com Cc: chris.mason@oracle.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/n/tip-r74n3n8hhuc2ynbrnp3vt954@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09sched/fair: Propagate 'struct lb_env' usage into find_busiest_groupPeter Zijlstra
More function argument passing reduction. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-v66ivjfqdiqdso01lqgqx6qf@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09sched/fair: Add some serialization to the sched_domain load-balance walkPeter Zijlstra
Since the sched_domain walk is completely unserialized (!SD_SERIALIZE) it is possible that multiple cpus in the group get elected to do the next level. Avoid this by adding some serialization. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-vqh9ai6s0ewmeakjz80w4qz6@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09sched/fair: Let minimally loaded cpu balance the groupPeter Zijlstra
Currently we let the leftmost (or first idle) cpu ascend the sched_domain tree and perform load-balancing. The result is that the busiest cpu in the group might be performing this function and pull more load to itself. The next load balance pass will then try to equalize this again. Change this to pick the least loaded cpu to perform higher domain balancing. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-v8zlrmgmkne3bkcy9dej1fvm@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09sched: Change rq->nr_running to unsigned intPeter Zijlstra
Since there's a PID space limit of 30bits (see futex.h:FUTEX_TID_MASK) and allocating that many tasks (assuming a lower bound of 2 pages per task) would still take 8T of memory it seems reasonable to say that unsigned int is sufficient for rq->nr_running. When we do get anywhere near that amount of tasks I suspect other things would go funny, load-balancer load computations would really need to be hoisted to 128bit etc. So save a few bytes and convert rq->nr_running and friends to unsigned int. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-y3tvyszjdmbibade5bw8zl81@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09Merge tag 'asoc-3.4' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Build fix for SH in 3.4 An API update which wasn't sufficiently thorough in updating the tree...
2012-05-09ASoC: rt5631: Convert to direct regmap API usageMark Brown
We're trying to remove all usage of the ASoc level cache and I/O code and for a device like this with a pretty sparse register map the rbtree cache is a better idea anyway. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-09ASoC: rt5631: Convert to module_i2c_driver()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-09ASoC: Ux500: Add MSP I2S-driverOla Lilja
Add driver for running I2S with the MSP-block. Signed-off-by: Ola Lilja <ola.o.lilja@stericsson.com> [Fixed trailing whitespace -- broonie] Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-09arm: davinci: use for_each_set_bit_fromAkinobu Mita
Use for_each_set_bit_from to iterate over all the set bit in a memory region. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Christian Riesch <christian.riesch@omicron.at> Cc: Kevin Hilman <khilman@ti.com> Cc: davinci-linux-open-source@linux.davincidsp.com Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2012-05-09ASoC: sh: fix migor.c compilationGuennadi Liakhovetski
Fix a recent compilation breakage, caused by a change in SH clock API. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-09x86/numa: Check for nonsensical topologies on real hw as wellIngo Molnar
Instead of only checking nonsensical topologies on numa-emu, do it on real hardware as well, and print a warning. Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tejun Heo <tj@kernel.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: x86@kernel.org Link: http://lkml.kernel.org/n/tip-re15l0jqjtpz709oxozt2zoh@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09x86/numa: Hard partition cpu topology masks on node boundariesPeter Zijlstra
When using numa=fake= you can get weird topologies where LLCs can span nodes and other such nonsense. Cure this by hard partitioning these masks on node boundaries. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tejun Heo <tj@kernel.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: x86@kernel.org Link: http://lkml.kernel.org/n/tip-di5vwjm96q5vrb76opwuflwx@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09x86/numa: Allow specifying node_distance() for numa=fakePeter Zijlstra
Allows emulating more interesting NUMA configurations like a quad socket AMD Magny-Cour: "numa=fake=8:10,16,16,22,16,22,16,22, 16,10,22,16,22,16,22,16, 16,22,10,16,16,22,16,22, 22,16,16,10,22,16,22,16, 16,22,16,22,10,16,16,22, 22,16,22,16,16,10,22,16, 16,22,16,22,16,22,10,16, 22,16,22,16,22,16,16,10" Which has a non-fully-connected topology. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tejun Heo <tj@kernel.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: x86@kernel.org Link: http://lkml.kernel.org/n/tip-e1136ef7kdffj7yf9tjhydln@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09netfilter: hashlimit: byte-based limit modeFlorian Westphal
can be used e.g. for ingress traffic policing or to detect when a host/port consumes more bandwidth than expected. This is done by optionally making cost to mean "cost per 16-byte-chunk-of-data" instead of "cost per packet". Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-05-09netfilter: hashlimit: move rateinfo initialization to helperFlorian Westphal
followup patch would bloat main match function too much. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-05-09netfilter: limit, hashlimit: avoid duplicated inlineFlorian Westphal
credit_cap can be set to credit, which avoids inlining user2credits twice. Also, remove inline keyword and let compiler decide. old: 684 192 0 876 36c net/netfilter/xt_limit.o 4927 344 32 5303 14b7 net/netfilter/xt_hashlimit.o now: 668 192 0 860 35c net/netfilter/xt_limit.o 4793 344 32 5169 1431 net/netfilter/xt_hashlimit.o Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-05-09netfilter: add xt_hmark target for hash-based skb markingHans Schillstrom
The target allows you to create rules in the "raw" and "mangle" tables which set the skbuff mark by means of hash calculation within a given range. The nfmark can influence the routing method (see "Use netfilter MARK value as routing key") and can also be used by other subsystems to change their behaviour. [ Part of this patch has been refactorized and modified by Pablo Neira Ayuso ] Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-05-09netfilter: ip6_tables: add flags parameter to ipv6_find_hdr()Hans Schillstrom
This patch adds the flags parameter to ipv6_find_hdr. This flags allows us to: * know if this is a fragment. * stop at the AH header, so the information contained in that header can be used for some specific packet handling. This patch also adds the offset parameter for inspection of one inner IPv6 header that is contained in error messages. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-05-09KVM: ia64: fix build due to typoAvi Kivity
s/kcm/kvm/. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-05-09ALSA: hda - More robustify the power-up/down sequenceTakashi Iwai
Check the power_transition up/down state instead of boolean bit, so that the power-up sequence can cancel the pending power-down work properly. Also, by moving cancel_delayed_work_sync() before the actual power-up sequence, make sure that the delayed power-down is completed. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-05-09sched: Fix KVM and ia64 boot crash due to sched_groups circular linked list ↵Igor Mammedov
assumption If we have one cpu that failed to boot and boot cpu gave up on waiting for it and then another cpu is being booted, kernel might crash with following OOPS: BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 IP: [<ffffffff812c3630>] __bitmap_weight+0x30/0x80 Call Trace: [<ffffffff8108b9b6>] build_sched_domains+0x7b6/0xa50 The crash happens in init_sched_groups_power() that expects sched_groups to be circular linked list. However it is not always true, since sched_groups preallocated in __sdt_alloc are initialized in build_sched_groups and it may exit early if (cpu != cpumask_first(sched_domain_span(sd))) return 0; without initializing sd->groups->next field. Fix bug by initializing next field right after sched_group was allocated. Also-Reported-by: Jiang Liu <liuj97@gmail.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Cc: a.p.zijlstra@chello.nl Cc: pjt@google.com Cc: seto.hidetoshi@jp.fujitsu.com Link: http://lkml.kernel.org/r/1336559908-32533-1-git-send-email-imammedo@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09Merge tag 'imx-eukrea' of git://git.pengutronix.de/git/imx/linux-2.6 into ↵Olof Johansson
next/boards ARM i.MX Eukrea Patches for 3.5 By Eric Bénard (11) and Denis Carikli (1) via Sascha Hauer * tag 'imx-eukrea' of git://git.pengutronix.de/git/imx/linux-2.6: ARM: imx: eukrea_mbimxsd rename to eukrea_mbimxsd51 ARM: imx: eukrea_mbimxsd25: use IMX_GPIO_NR ARM: imx: eukrea_mbimxsd25: don't free twice GPIO_SWITCH1 ARM: imx: eukrea_mbimxsd: add backlight and lcd support ARM: imx: eukrea_cpuimx51sd: support rev2 PCB ARM: imx: eukrea_mbimxsd: add audio support ARM: imx: eukrea_cpuimx51sd: add watchdog support ARM: imx: eukrea-cpuimx51: remove board ARM: imx: eukrea_mbimxsd35: add spi controler and spidev support ARM: imx: eukrea_cpuimx25: add watchdog support ARM: imx: eukrea_mbimxsd25: add spi controler and spidev support ARM: imx: eukrea_cpuimx25: enable workaround ENGcm09152
2012-05-09Merge branch 'board-specific' of git://github.com/hzhuang1/linux into ↵Olof Johansson
next/boards By Paul Parsons (5) and others via Haojian Zhuang * 'board-specific' of git://github.com/hzhuang1/linux: pcmcia: add driver for hx4700 ARM: pxa: Add standard UART to hx4700_pin_config[] ARM: mmp: add usb host support for aspen ARM: mmp: add usb host support for PXA168 ARM: mmp: add usb device support for ttc dkb ARM: mmp: add usb device support for PXA910 ARM: pxa: hx4700: Add PCMCIA/CF support ARM: pxa: hx4700: Enable ASIC3 GPIO as a wakeup source ARM: pxa: hx4700: Initialize DS1WM clock_rate ARM: pxa: mioa701 add camera output enable gpio ARM: pxa: use ioremap to access CPLD Signed-off-by: Olof Johansson <olof@lixom.net>
2012-05-09x86: Avoid double stack traces with show_regs()Jan Beulich
What was called show_registers() so far already showed a stack trace for kernel faults, and kernel_stack_pointer() isn't even valid to be used for faults from user mode, hence it was pointless for show_regs() to call show_trace() after show_registers(). Simply rename show_registers() to show_regs() and eliminate the old definition. Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/4FAA3D3902000078000826E1@nat28.tlf.novell.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09HID: wiimote: Fix IR data parserDavid Herrmann
We incorrectly parse incoming IR data. The extra byte contains the upper bits and not the lower bits of the x/y coordinates. User-space expects absolute position data from us so this patch does not break existing applications. On the contrary, it extends the virtual view and fixes garbage reports for margin areas of the virtual screen. Cc: stable@kernel.org Reported-by: Peter Bukovsky <bukovsky.peter@gmail.com> Signed-off-by: David Herrmann <dh.herrmann@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-05-09atomic64_32.h: fix parameter naming mismatchPhilipp Hahn
The doc string doesn't match the parameter name, fix @p -> @v @ptr -> @v @n -> @i Signed-off-by: Philipp Hahn <hahn@univention.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
generated by cgit (git 2.34.1) at 2025-09-24 01:42:20 +0000