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2014-04-22Merge branches 'acpica' and 'acpi-tools'Rafael J. Wysocki1-10/+1
* acpica: ACPICA: Fix buffer allocation issue for generic_serial_bus region accesses. * acpi-tools: tools/power/acpi: Minor bugfixes
2014-04-22cpufreq: highbank: fix ARM_HIGHBANK_CPUFREQ dependency warningKefeng Wang1-5/+1
When make ARCH=arm multi_v7_defconfig, we get the following warnings: warning: (ARM_HIGHBANK_CPUFREQ) selects GENERIC_CPUFREQ_CPU0 which has unmet direct dependencies (ARCH_HAS_CPUFREQ && CPU_FREQ && HAVE_CLK && REGULATOR && OF && THERMAL && CPU_THERMAL) To fix this, make ARM_HIGHBANK_CPUFREQ depend on ARCH_HAS_CPUFREQ and REGULATOR instead of selecting them, PM_OPP will be selected by ARCH_HAS_CPUFREQ. Signed-off-by: Kefeng Wang <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-04-21cpufreq: ppc: Fix integer overflow in expressionGeert Uytterhoeven1-1/+1
On 32-bit, "12 * NSEC_PER_SEC" doesn't fit in "unsigned long" (NSEC_PER_SEC is a "long" constant), causing an integer overflow: drivers/cpufreq/ppc-corenet-cpufreq.c: In function 'corenet_cpufreq_cpu_init': drivers/cpufreq/ppc-corenet-cpufreq.c:211:9: warning: integer overflow in expression [-Woverflow] Force the intermediate to be 64-bit by adding an "ULL" suffix to the constant multiplier to fix this. Signed-off-by: Geert Uytterhoeven <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-04-21cpufreq, powernv: Fix build failure on UPSrivatsa S. Bhat1-0/+1
Paul Gortmaker reported the following build failure of the powernv cpufreq driver on UP configs: drivers/cpufreq/powernv-cpufreq.c:241:2: error: implicit declaration of function 'cpu_sibling_mask' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[3]: *** [drivers/cpufreq/powernv-cpufreq.o] Error 1 make[2]: *** [drivers/cpufreq] Error 2 make[1]: *** [drivers] Error 2 make: *** [sub-make] Error 2 The trouble here is that cpu_sibling_mask is defined only in <asm/smp.h>, and <linux/smp.h> includes <asm/smp.h> only in SMP builds. So fix this build failure by explicitly including <asm/smp.h> in the driver, so that we get the definition of cpu_sibling_mask even in UP configurations. Reported-by: Paul Gortmaker <[email protected]> Signed-off-by: Srivatsa S. Bhat <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-04-21cpufreq: unicore32: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERODuan Jiong1-3/+1
This patch fixes coccinelle error regarding usage of IS_ERR and PTR_ERR instead of PTR_ERR_OR_ZERO. Signed-off-by: Duan Jiong <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-04-21PM / suspend: Make cpuidle work in the "freeze" stateRafael J. Wysocki1-0/+3
The "freeze" system sleep state introduced by commit 7e73c5ae6e79 (PM: Introduce suspend state PM_SUSPEND_FREEZE) requires cpuidle to be functional when freeze_enter() is executed to work correctly (that is, to be able to save any more energy than runtime idle), but that is impossible after commit 8651f97bd951d (PM / cpuidle: System resume hang fix with cpuidle) which caused cpuidle to be paused in dpm_suspend_noirq() and resumed in dpm_resume_noirq(). To avoid that problem, add cpuidle_resume() and cpuidle_pause() to the beginning and the end of freeze_enter(), respectively. Reported-by: Zhang Rui <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Reviewed-by: Preeti U Murthy <[email protected]>
2014-04-21intel_idle: fix IVT idle state table settingChristoph Jaeger1-1/+2
Ivy Town idle state table will not be set as intended. Fix it. Picked up by Coverity - CID 1201420/1201421. Fixes: 0138d8f075 ("intel_idle: fine-tune IVT residency targets") Signed-off-by: Christoph Jaeger <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-04-21[SCSI] More USB deadlock fixesJames Bottomley1-0/+1
This patch fixes a corner case in the previous USB Deadlock fix patch (12023e7 [SCSI] Fix USB deadlock caused by SCSI error handling). The scenario is abort command, set flag, abort completes, send TUR, TUR doesn't return, so we now try to abort the TUR, but scsi_abort_eh_cmnd() will skip the abort because the flag is set and move straight to reset. Reviewed-by: Hannes Reinecke <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2014-04-21[SCSI] Fix USB deadlock caused by SCSI error handlingHannes Reinecke1-0/+1
USB requires that every command be aborted first before we escalate to reset. In particular, USB will deadlock if we try to reset first before aborting the command. Unfortunately, the flag we use to tell if a command has already been aborted: SCSI_EH_ABORT_SCHEDULED is not cleared properly leading to cases where we can requeue a command with the flag set and proceed immediately to reset if it fails (thus causing USB to deadlock). Fix by clearing the SCSI_EH_ABORT_SCHEDULED flag if it has been set. Which means this will be the second time scsi_abort_command() has been called for the same command. IE the first abort went out, did its thing, but now the same command has timed out again. So this flag gets cleared, and scsi_abort_command() returns FAILED, and _no_ asynchronous abort is being scheduled. scsi_times_out() will then proceed to call scsi_eh_scmd_add(). But as we've cleared the SCSI_EH_ABORT_SCHEDULED flag the SCSI_EH_CANCEL_CMD flag will continue to be set, and the command will be aborted with the main SCSI EH routine. Reported-by: Alan Stern <[email protected]> Tested-by: Andreas Reis <[email protected]> Signed-off-by: Hannes Reinecke <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2014-04-21[SCSI] Fix command result state propagationAlan Stern2-0/+2
We're seeing a case where the contents of scmd->result isn't being reset after a SCSI command encounters an error, is resubmitted, times out and then gets handled. The error handler acts on the stale result of the previous error instead of the timeout. Fix this by properly zeroing the scmd->status before the command is resubmitted. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2014-04-21[SCSI] Fix spurious request sense in error handlingJames Bottomley1-0/+9
We unconditionally execute scsi_eh_get_sense() to make sure all failed commands that should have sense attached, do. However, the routine forgets that some commands, because of the way they fail, will not have any sense code ... we should not bother them with a REQUEST_SENSE command. Fix this by testing to see if we actually got a CHECK_CONDITION return and skip asking for sense if we don't. Tested-by: Alan Stern <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2014-04-21ACPICA: Fix buffer allocation issue for generic_serial_bus region accesses.Lv Zheng1-7/+97
The size of the buffer allocated for generic_serial_bus region access is not correct. This patch introduces acpi_ex_get_serial_access_length() to be invoked to obtain correct data buffer length. Signed-off-by: Lv Zheng <[email protected]> Reported by: Lan Tianyu <[email protected]> Acked-by: Lan Tianyu <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-04-21tools/power/acpi: Minor bugfixesThomas Renninger1-10/+1
- bindir is created, but sbindir is used -> fix that - the debug parts are there twice (copy paste bug?). Remove one of the exact same parts Signed-off-by: Thomas Renninger <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-04-21Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds5-297/+84
Pull UML fixes from Richard Weinberger: "Assorted fixes for UML" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: Memory corruption on startup um: Missing pipe handling uml: Simplify tempdir logic.
2014-04-21usb: phy: am335x-control: wait 1ms after power-up transitionsDaniel Mack1-0/+9
Tests have shown that when a power-up transition is followed by other PHY operations too quickly, the USB port appears dead. Waiting 1ms fixes this problem. Signed-off-by: Daniel Mack <[email protected]> Cc: [email protected] [3.14] Signed-off-by: Felipe Balbi <[email protected]>
2014-04-21usb: gadget: f_rndis: reduce NETTX irq caused by free skb headerMacpaul Lin1-1/+1
This patch reduce unecessary NETTX softirq call caused by free skb header. You will see this softirq comes twice while there is only one TX packet to be transmitted. So using dev_kfree_skb() instead of dev_kfree_skb_any() to avoid this problem. Cc: David S. Miller <[email protected]> Cc: Stephen Hemminger <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Signed-off-by: Macpaul Lin <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2014-04-21Revert "usb: gadget: u_ether: move hardware transmit to RX NAPI"Felipe Balbi1-66/+35
This reverts commit 716fb91dfe1777bd6d5e598f3d3572214b3ed296. That commit caused a regression which would end up in a kernel BUG() as below: [ 101.554300] g_ether gadget: full-speed config #1: CDC Subset/SAFE [ 101.585186] ------------[ cut here ]------------ [ 101.600587] kernel BUG at include/linux/netdevice.h:495! [ 101.615850] Internal error: Oops - BUG: 0 [#1] PREEMPT ARM [ 101.645539] Modules linked in: [ 101.660483] CPU: 0 PID: 0 Comm: swapper Not tainted 3.15.0-rc1+ #104 [ 101.690175] task: c05dc5c8 ti: c05d2000 task.ti: c05d2000 [ 101.705579] PC is at eth_start+0x64/0x8c [ 101.720981] LR is at __netif_schedule+0x7c/0x90 [ 101.736455] pc : [<c0299174>] lr : [<c036a134>] psr: 60000093 [ 101.736455] sp : c05d3d18 ip : c05d3cf8 fp : c05d3d2c [ 101.782340] r10: 00000000 r9 : c196c1f0 r8 : c196c1a0 [ 101.797823] r7 : 00000000 r6 : 00000002 r5 : c1976400 r4 : c1976400 [ 101.828058] r3 : 00000000 r2 : c05d3ce8 r1 : 00000001 r0 : 00000002 [ 101.858722] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Reported-by: Robert Jarzmik <[email protected]> Signed-of-by: Felipe Balbi <[email protected]>
2014-04-21[SCSI] don't reference freed command in scsi_prep_returnChristoph Hellwig1-1/+1
Patch commit 0479633686d370303e3430256ace4bd5f7f138dc Author: Christoph Hellwig <[email protected]> Date: Thu Feb 20 14:20:55 2014 -0800 [SCSI] do not manipulate device reference counts in scsi_get/put_command Introduced a use after free:I in the kill case of scsi_prep_return we have to release our device reference, but we do this trying to reference the just freed command. Use the local sdev pointer instead. Fixes: 0479633686d370303e3430256ace4bd5f7f138dc Reported-by: Joe Lawrence <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2014-04-21[SCSI] don't reference freed command in scsi_init_sgtableChristoph Hellwig1-1/+2
Patch commit 0479633686d370303e3430256ace4bd5f7f138dc Author: Christoph Hellwig <[email protected]> Date: Thu Feb 20 14:20:55 2014 -0800 [SCSI] do not manipulate device reference counts in scsi_get/put_command Introduced a use after free: when scsi_init_io fails we have to release our device reference, but we do this trying to reference the just freed command. Add a local scsi_device pointer to fix this. Fixes: 0479633686d370303e3430256ace4bd5f7f138dc Reported-by: Sander Eikelenboom <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2014-04-21[SCSI] hpsa: fix NULL dereference in hpsa_put_ctlr_into_performant_mode()[email protected]1-4/+4
Initialize local variable trans_support before it is used rather than after. It is supposed to contain the value of a register on the controller containing bits that describe which transport modes the controller supports (e.g. "performant", "ioaccel1", "ioaccel2"). A NULL pointer dereference will almost certainly occur if trans_support is not initialized at the right point. If for example the uninitialized trans_support value does not have the bit set for ioaccel2 support when it should be, then ioaccel2_alloc_cmds_and_bft() will not get called as it should be and the h->ioaccel2_blockFetchTable array will remain NULL instead of being allocated. Too late, trans_support finally gets initialized with the correct value with ioaccel2 mode bit set, which later causes calc_bucket_map() to be called to fill in h->ioaccel2_blockFetchTable[]. However h->ioaccel2_blockFetchTable is NULL because it didn't get allocated because earlier trans_support wasn't initialized at the right point. Fixes: e1f7de0cdd68d246d7008241cd9e443a54f880a8 Signed-off-by: Stephen M. Cameron <[email protected]> Reported-by: Baoquan He <[email protected]> Tested-by: Baoquan He <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2014-04-20Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds14-137/+188
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "These are regression and bug fixes for ext4. We had a number of new features in ext4 during this merge window (ZERO_RANGE and COLLAPSE_RANGE fallocate modes, renameat, etc.) so there were many more regression and bug fixes this time around. It didn't help that xfstests hadn't been fully updated to fully stress test COLLAPSE_RANGE until after -rc1" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (31 commits) ext4: disable COLLAPSE_RANGE for bigalloc ext4: fix COLLAPSE_RANGE failure with 1KB block size ext4: use EINVAL if not a regular file in ext4_collapse_range() ext4: enforce we are operating on a regular file in ext4_zero_range() ext4: fix extent merging in ext4_ext_shift_path_extents() ext4: discard preallocations after removing space ext4: no need to truncate pagecache twice in collapse range ext4: fix removing status extents in ext4_collapse_range() ext4: use filemap_write_and_wait_range() correctly in collapse range ext4: use truncate_pagecache() in collapse range ext4: remove temporary shim used to merge COLLAPSE_RANGE and ZERO_RANGE ext4: fix ext4_count_free_clusters() with EXT4FS_DEBUG and bigalloc enabled ext4: always check ext4_ext_find_extent result ext4: fix error handling in ext4_ext_shift_extents ext4: silence sparse check warning for function ext4_trim_extent ext4: COLLAPSE_RANGE only works on extent-based files ext4: fix byte order problems introduced by the COLLAPSE_RANGE patches ext4: use i_size_read in ext4_unaligned_aio() fs: disallow all fallocate operation on active swapfile fs: move falloc collapse range check into the filesystem methods ...
2014-04-20um: Memory corruption on startupAnton Ivanov3-0/+8
The reverse case of this race (you must msync before read) is well known. This is the not so common one. It can be triggered only on systems which do a lot of task switching and only at UML startup. If you are starting 200+ UMLs ~ 0.5% will always die without this fix. Signed-off-by: Anton Ivanov <[email protected]> [rw: minor whitespace fixes] Signed-off-by: Richard Weinberger <[email protected]>
2014-04-20um: Missing pipe handlingAnton Ivanov1-0/+1
UML does not handle sigpipe. As a result when running it under expect or redirecting the IO from the console to an external program it will crash if the program stops or exits. Signed-off-by: Anton Ivanov <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2014-04-20uml: Simplify tempdir logic.Tristan Schmelcher1-297/+75
Inferring the mount hierarchy correctly from /proc/mounts is hard when MS_MOVE may have been used, and the previous code did it wrongly. This change simplifies the logic to only require that /dev/shm be _on_ tmpfs (which can be checked trivially with statfs) rather than that it be a _mountpoint_ of tmpfs, since there isn't a compelling reason to be that strict. We also now check for tmpfs on whatever directory we ultimately use so that the user is better informed. This change also moves the more standard TMPDIR environment variable check ahead of the others. Applies to 3.12. Signed-off-by: Tristan Schmelcher <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2014-04-20Linux 3.15-rc2Linus Torvalds1-1/+1
2014-04-20Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds5-6/+18
Pull slave-dmaengine fixes from Vinod Koul: "Back from long weekend here in India and now the time to send fixes for slave dmaengine. - Dan's fix of sirf xlate code - Jean's fix for timberland - edma fixes by Sekhar for SG handling and Yuan for changing init call" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dma: fix eDMA driver as a subsys_initcall dmaengine: sirf: off by one in of_dma_sirfsoc_xlate() platform: Fix timberdale dependencies dma: edma: fix incorrect SG list handling
2014-04-20Merge tag 'iommu-fixes-v3.15-rc1' of ↵Linus Torvalds3-6/+11
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: "Fixes for regressions: - fix wrong IOMMU enumeration causing some SCSI device drivers initialization failures - ARM-SMMU fixes for a panic condition and a wrong return value" * tag 'iommu-fixes-v3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/arm-smmu: fix panic in arm_smmu_alloc_init_pte iommu/arm-smmu: Return 0 on unmap failure iommu/vt-d: fix bug in matching PCI devices with DRHD/RMRR descriptors iommu/vt-d: Fix get_domain_for_dev() handling of upstream PCIe bridges iommu/vt-d: fix memory leakage caused by commit ea8ea46
2014-04-20Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds4-2/+12
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf tooling fixes from Ingo Molnar: "Three small tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Improve error reporting perf tools: Adjust symbols in VDSO perf kvm: Fix 'Min time' counting in report command
2014-04-20drm/radeon: improve PLL limit handling in post div calculationChristian König1-26/+51
This improves the PLL parameters when we work at the limits of the allowed ranges. Signed-off-by: Christian König <[email protected]>
2014-04-20Merge tag 'perf-urgent-for-mingo' of ↵Ingo Molnar4-2/+12
git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/urgent Pull perf/urgent fixes from Jiri Olsa: User visible changes: * Adjust symbols in VDSO to properly resolve its function names (Vladimir Nikulichev) * Improve error reporting for record session failure (Adrien BAK) * Fix 'Min time' counting in report command (Alexander Yarygin) Signed-off-by: Jiri Olsa <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2014-04-19Input: synaptics - add min/max quirk for ThinkPad T431s, L440, L540, S1 Yoga ↵Hans de Goede1-0/+42
and X1 We expect that all the Haswell series will need such quirks, sigh. The T431s seems to be T430 hardware in a T440s case, using the T440s touchpad, with the same min/max issue. The X1 Carbon 3rd generation name says 2nd while it is a 3rd generation. The X1 and T431s share a PnPID with the T540p, but the reported ranges are closer to those of the T440s. HdG: Squashed 5 quirk patches into one. T431s + L440 + L540 are written by me, S1 Yoga and X1 are written by Benjamin Tissoires. Hdg: Standardized S1 Yoga and X1 values, Yoga uses the same touchpad as the X240, X1 uses the same touchpad as the T440. Cc: [email protected] Signed-off-by: Benjamin Tissoires <[email protected]> Signed-off-by: Hans de Goede <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: synaptics - report INPUT_PROP_TOPBUTTONPAD propertyHans de Goede1-2/+53
Check PNP ID of the PS/2 AUX port and report INPUT_PROP_TOPBUTTONPAD property for for touchpads with top button areas. Signed-off-by: Hans de Goede <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: Add INPUT_PROP_TOPBUTTONPAD device propertyHans de Goede1-0/+1
On some newer laptops with a trackpoint the physical buttons for the trackpoint have been removed to allow for a larger touchpad. On these laptops the buttonpad has clearly marked areas on the top which are to be used as trackpad buttons. Users of the event device-node need to know about this, so that they can properly interpret BTN_LEFT events as being a left / right / middle click depending on where on the button pad the clicking finger is. This commits adds a INPUT_PROP_TOPBUTTONPAD device property which drivers for such buttonpads will use to signal to the user that this buttonpad not only has the normal bottom button area, but also a top button area. Signed-off-by: Hans de Goede <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: i8042 - add firmware_id supportHans de Goede2-0/+21
Fill in the new serio firmware_id sysfs attribute for pnp instantiated 8042 serio ports. Signed-off-by: Hans de Goede <[email protected]> Acked-by: Peter Hutterer <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: serio - add firmware_id sysfs attributeHans de Goede2-0/+15
serio devices exposed via platform firmware interfaces such as ACPI may provide additional identifying information of use to userspace. We don't associate the serio devices with the firmware device (we don't set it as parent), so there's no way for userspace to make use of this information. We cannot change the parent for serio devices instantiated though a firmware interface as that would break suspend / resume ordering. Therefore this patch adds a new firmware_id sysfs attribute so that userspace can get a string from there with any additional identifying information the firmware interface may provide. Signed-off-by: Hans de Goede <[email protected]> Acked-by: Peter Hutterer <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-20perf tools: Improve error reportingAdrien BAK2-2/+9
In the current version, when using perf record, if something goes wrong in tools/perf/builtin-record.c:375 session = perf_session__new(file, false, NULL); The error message: "Not enough memory for reading per file header" is issued. This error message seems to be outdated and is not very helpful. This patch proposes to replace this error message by "Perf session creation failed" I believe this issue has been brought to lkml: https://lkml.org/lkml/2014/2/24/458 although this patch only tackles a (small) part of the issue. Additionnaly, this patch improves error reporting in tools/perf/util/data.c open_file_write. Currently, if the call to open fails, the user is unaware of it. This patch logs the error, before returning the error code to the caller. Reported-by: Will Deacon <[email protected]> Signed-off-by: Adrien BAK <[email protected]> Link: http://lkml.kernel.org/r/1397786443.3093.4.camel@beast [ Reorganize the changelog into paragraphs ] [ Added empty line after fd declaration in open_file_write ] Signed-off-by: Jiri Olsa <[email protected]>
2014-04-20perf tools: Adjust symbols in VDSOVladimir Nikulichev1-0/+2
pert-report doesn't resolve function names in VDSO: $ perf report --stdio -g flat,0.0,15,callee --sort pid ... 8.76% 0x7fff6b1fe861 __gettimeofday ACE_OS::gettimeofday() ... In this case symbol values should be adjusted the same way as for executables, relocatable objects and prelinked libraries. After fix: $ perf report --stdio -g flat,0.0,15,callee --sort pid ... 8.76% __vdso_gettimeofday __gettimeofday ACE_OS::gettimeofday() Signed-off-by: Vladimir Nikulichev <[email protected]> Tested-by: Namhyung Kim <[email protected]> Reviewed-by: Adrian Hunter <[email protected]> Link: http://lkml.kernel.org/r/969812.163009436-sendEmail@nvs Signed-off-by: Jiri Olsa <[email protected]>
2014-04-20perf kvm: Fix 'Min time' counting in report commandAlexander Yarygin1-0/+1
Every event in the perf-kvm has a 'stats' structure, which contains max/min/average/etc times of handling this event. The problem is that the 'perf-kvm stat report' command always shows that 'min time' is 0us for every event. Example: # perf kvm stat report Analyze events for all VCPUs: VM-EXIT Samples Samples% Time% Min Time Max Time Avg time [..] 0xB2 MSCH 12 0.07% 0.00% 0us 8us 7.31us ( +- 2.11% ) 0xB2 CHSC 12 0.07% 0.00% 0us 18us 9.39us ( +- 9.49% ) 0xB2 STPX 8 0.05% 0.00% 0us 2us 1.88us ( +- 7.18% ) 0xB2 STSI 7 0.04% 0.00% 0us 44us 16.49us ( +- 38.20% ) [..] This happens because the 'stats' structure is not initialized and stats->min equals to 0. Lets initialize the structure for every event after its allocation using init_stats() function. This initializes stats->min to -1 and makes 'Min time' statistics counting work: # perf kvm stat report Analyze events for all VCPUs: VM-EXIT Samples Samples% Time% Min Time Max Time Avg time [..] 0xB2 MSCH 12 0.07% 0.00% 6us 8us 7.31us ( +- 2.11% ) 0xB2 CHSC 12 0.07% 0.00% 7us 18us 9.39us ( +- 9.49% ) 0xB2 STPX 8 0.05% 0.00% 1us 2us 1.88us ( +- 7.18% ) 0xB2 STSI 7 0.04% 0.00% 1us 44us 16.49us ( +- 38.20% ) [..] Signed-off-by: Alexander Yarygin <[email protected]> Signed-off-by: Christian Borntraeger <[email protected]> Reviewed-by: David Ahern <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Fixing the perf examples changelog output ] Signed-off-by: Jiri Olsa <[email protected]>
2014-04-19Input: wacom - handle 1024 pressure levels in wacom_tpc_penJason Gerecke1-1/+1
Some tablet PC sensors (e.g. the 0xEC found in the Thinkpad Yoga) report more than 256 pressure levels and will experience wraparound unless the full range is read. Signed-off-by: Jason Gerecke <[email protected]> Tested-by: Aaron Skomra <[email protected]> Reviewed-by: Carl Worth <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: wacom - references to 'wacom->data' should use 'unsigned char*'Jason Gerecke1-18/+9
'wacom->data' contains raw binary data and can lead to unexpected behavior if a byte under examination happens to have its MSB set. Signed-off-by: Jason Gerecke <[email protected]> Tested-by: Aaron Skomra <[email protected]> Reviewed-by: Carl Worth <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: wacom - override 'pressure_max' with value from HID_USAGE_PRESSUREJason Gerecke1-0/+9
The 0xEC sensor is used in multiple tablet PCs and curiously has versions that report 256 levels of pressure (Samsung Slate 7) as well as versions that report 1024 levels (Lenovo Thinkpad Yoga). To allow both versions to work properly, we allow the value of HID_USAGE_PRESSURE reported to override pressure_max. Signed-off-by: Jason Gerecke <[email protected]> Tested-by: Aaron Skomra <[email protected]> Reviewed-by: Carl Worth <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: wacom - use full 32-bit HID Usage value in switch statementJason Gerecke1-128/+109
A HID Usage is a 32-bit value: an upper 16-bit "page" and a lower 16-bit ID. While the two halves are normally reported seperately, only the combination uniquely idenfifes a particular HID Usage. The existing code performs the comparison in two steps, first performing a switch on the ID and then verifying the page within each case. While this works fine, it is very akward to handle two Usages that share a single ID, such as HID_USAGE_PRESSURE and HID_USAGE_X because the case statement can only have a single identifier. To work around this, we now check the full 32-bit HID Usage directly rather than first checking the ID and then the page. This allows the switch statement to have distinct cases for e.g. HID_USAGE_PRESSURE and HID_USAGE_X. Signed-off-by: Jason Gerecke <[email protected]> Tested-by: Aaron Skomra <[email protected]> Reviewed-by: Carl Worth <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: wacom - missed the last bit of expresskey for DTU-1031Ping Cheng1-1/+1
Signed-off-by: Ping Cheng <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: ads7846 - fix device usage within attribute showAlexander Stein1-1/+1
With commit e585c40ba (Input: ads7846 - convert to hwmon_device_register_with_groups()) the device passed to the attribute's show function isn't the spi device as before. So fixup the passed device to ads7846_read12_ser. Signed-off-by: Alexander Stein <[email protected]> Acked-by: Guenter Roeck <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19Input: da9055_onkey - remove use of regmap_irq_get_virq()Adam Thomson1-1/+0
Using platform_get_irq_byname() to retrieve the IRQ number returns the VIRQ number rather than the local IRQ number for the device. Passing that value then into regmap_irq_get_virq() causes a failure because the function is expecting the local IRQ number (e.g. 0, 1, 2, 3, etc). This patch removes use of regmap_irq_get_virq() to prevent this failure from happening. Signed-off-by: Adam Thomson <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2014-04-19ext4: disable COLLAPSE_RANGE for bigallocNamjae Jeon1-0/+3
Once COLLAPSE RANGE is be disable for ext4 with bigalloc feature till finding root-cause of problem. It will be enable with fixing that regression of xfstest(generic 075 and 091) again. Signed-off-by: Namjae Jeon <[email protected]> Signed-off-by: Ashish Sangwan <[email protected]> Reviewed-by: Lukas Czerner <[email protected]> Signed-off-by: "Theodore Ts'o" <[email protected]>
2014-04-19ext4: fix COLLAPSE_RANGE failure with 1KB block sizeNamjae Jeon1-3/+10
When formatting with 1KB or 2KB(not aligned with PAGE SIZE) block size, xfstests generic/075 and 091 are failing. The offset supplied to function truncate_pagecache_range is block size aligned. In this function start offset is re-aligned to PAGE_SIZE by rounding_up to the next page boundary. Due to this rounding up, old data remains in the page cache when blocksize is less than page size and start offset is not aligned with page size. In case of collapse range, we need to align start offset to page size boundary by doing a round down operation instead of round up. Signed-off-by: Namjae Jeon <[email protected]> Signed-off-by: Ashish Sangwan <[email protected]> Signed-off-by: "Theodore Ts'o" <[email protected]>
2014-04-19coredump: fix va_list corruptionEric Dumazet1-1/+6
A va_list needs to be copied in case it needs to be used twice. Thanks to Hugh for debugging this issue, leading to various panics. Tested: lpq84:~# echo "|/foobar12345 %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h" >/proc/sys/kernel/core_pattern 'produce_core' is simply : main() { *(int *)0 = 1;} lpq84:~# ./produce_core Segmentation fault (core dumped) lpq84:~# dmesg | tail -1 [ 614.352947] Core dump to |/foobar12345 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 lpq84 (null) pipe failed Notice the last argument was replaced by a NULL (we were lucky enough to not crash, but do not try this on your production machine !) After fix : lpq83:~# echo "|/foobar12345 %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h %h" >/proc/sys/kernel/core_pattern lpq83:~# ./produce_core Segmentation fault lpq83:~# dmesg | tail -1 [ 740.800441] Core dump to |/foobar12345 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 lpq83 pipe failed Fixes: 5fe9d8ca21cc ("coredump: cn_vprintf() has no reason to call vsnprintf() twice") Signed-off-by: Eric Dumazet <[email protected]> Diagnosed-by: Hugh Dickins <[email protected]> Acked-by: Oleg Nesterov <[email protected]> Cc: Neil Horman <[email protected]> Cc: Andrew Morton <[email protected]> Cc: [email protected] # 3.11+ Signed-off-by: Linus Torvalds <[email protected]>
2014-04-19Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2-12/+10
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fix from Ingo Molnar: "This fixes the preemption-count imbalance crash reported by Owen Kibel" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Fix CMCI preemption bugs
2014-04-19Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds4-11/+32
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Two fixes: - a SCHED_DEADLINE task selection fix - a sched/numa related lockdep splat fix" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Check for stop task appearance when balancing happens sched/numa: Fix task_numa_free() lockdep splat
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