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2011-10-30[S390] smp: external call vs. emergency signalMartin Schwidefsky3-3/+13
Use a sigp sense running to decide which signal processor order to use for an ipi. If the target cpu is running use external call, if the target cpu is not running use emergency signal. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] chsc_sch: add support for irq statisticsSebastian Ott2-0/+2
Add support for CHSC I/O interrupt statistics in /proc/interrupts. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] allow all addressing modesMartin Schwidefsky4-24/+29
The user space program can change its addressing mode between the 24-bit, 31-bit and the 64-bit mode if the kernel is 64 bit. Currently the kernel always forces the standard amode on signal delivery and signal return and on ptrace: 64-bit for a 64-bit process, 31-bit for a compat process and 31-bit kernels. Change the signal and ptrace code to allow the full range of addressing modes. Signal handlers are run in the standard addressing mode for the process. One caveat is that even an 31-bit compat process can switch to the 64-bit mode. The next signal will switch back into the 31-bit mode and there is no room in the 31-bit compat signal frame to store the information that the program came from the 64-bit mode. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] cleanup psw related bits and piecesMartin Schwidefsky18-122/+105
Split out addressing mode bits from PSW_BASE_BITS, rename PSW_BASE_BITS to PSW_MASK_BASE, get rid of psw_user32_bits, remove unused function enabled_wait(), introduce PSW_MASK_USER, and drop PSW_MASK_MERGE macros. Change psw_kernel_bits / psw_user_bits to contain only the bits that are always set in the respective mode. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] add TIF_SYSCALL thread flagMartin Schwidefsky7-94/+69
Add an explicit TIF_SYSCALL bit that indicates if a task is inside a system call. The svc_code in the pt_regs structure is now only valid if TIF_SYSCALL is set. With this definition TIF_RESTART_SVC can be replaced with TIF_SYSCALL. Overall do_signal is a bit more readable and it saves a few lines of code. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] addressing mode limits and psw address wrappingMartin Schwidefsky4-4/+29
An instruction with an address right below the adress limit for the current addressing mode will wrap. The instruction restart logic in the protection fault handler and the signal code need to follow the wrapping rules to find the correct instruction address. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] signal race with restarting system callsMartin Schwidefsky9-91/+141
For a ERESTARTNOHAND/ERESTARTSYS/ERESTARTNOINTR restarting system call do_signal will prepare the restart of the system call with a rewind of the PSW before calling get_signal_to_deliver (where the debugger might take control). For A ERESTART_RESTARTBLOCK restarting system call do_signal will set -EINTR as return code. There are two issues with this approach: 1) strace never sees ERESTARTNOHAND, ERESTARTSYS, ERESTARTNOINTR or ERESTART_RESTARTBLOCK as the rewinding already took place or the return code has been changed to -EINTR 2) if get_signal_to_deliver does not return with a signal to deliver the restart via the repeat of the svc instruction is left in place. This opens a race if another signal is made pending before the system call instruction can be reexecuted. The original system call will be restarted even if the second signal would have ended the system call with -EINTR. These two issues can be solved by dropping the early rewind of the system call before get_signal_to_deliver has been called and by using the TIF_RESTART_SVC magic to do the restart if no signal has to be delivered. The only situation where the system call restart via the repeat of the svc instruction is appropriate is when a SA_RESTART signal is delivered to user space. Unfortunately this breaks inferior calls by the debugger again. The system call number and the length of the system call instruction is lost over the inferior call and user space will see ERESTARTNOHAND/ ERESTARTSYS/ERESTARTNOINTR/ERESTART_RESTARTBLOCK. To correct this a new ptrace interface is added to save/restore the system call number and system call instruction length. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] defconfig: switch on CONFIG_DEVTMPFSHendrik Brueckner1-1/+1
Switching on the DEVTMPFS kernel option helpes to maintain a /dev file system early in the boot process, especially, in limited environments. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] lowcore cleanupMartin Schwidefsky5-15/+8
Remove the save_area_64 field from the 0xe00 - 0xf00 area in the lowcore. Use a free slot in the save_area array instead. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] Add architecture code for unmapping crashkernel memoryMichael Holzheu3-4/+40
This patch implements the crash_map_pages() function for s390. KEXEC_CRASH_MEM_ALIGN is set to HPAGE_SIZE, in order to support kernel mappings that use large pages. We also use HPAGE_SIZE alignment for CONFIG_HUGETLB_PAGE=n in order to have the same 1 MiB alignment on all s390 systems. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] Export vmcoreinfo noteMichael Holzheu2-4/+16
This patch defines for s390 an ABI defined pointer to the vmcoreinfo note at a well known address. With this patch tools are able to find this information in dumps created by stand-alone or hypervisor dump tools. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] kdump backend codeMichael Holzheu18-12/+1078
This patch provides the architecture specific part of the s390 kdump support. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] Add real memory access functionsMichael Holzheu2-0/+58
Add access function for real memory needed by s390 kdump backend. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] Force PSW restart on online CPUMichael Holzheu3-0/+29
PSW restart can be triggered on offline CPUs. If this happens, currently the PSW restart code fails, because functions like smp_processor_id() do not work on offline CPUs. This patch fixes this as follows: If PSW restart is triggered on an offline CPU, the PSW restart (sigp restart) is done a second time on another CPU that is online and the old CPU is stopped afterwards. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] fix _TIF_SINGLE_STEP definitionTejun Heo1-1/+1
_TIF_SINGLE_STEP is incorrectly defined as 1<<TIF_FREEZE. Fix it. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] use ENTRY macro for sys_setns_wrapperJan Glauber1-2/+1
Use the ENTRY macro for the system call wrapper sys_setns_wrapper similarly to the other wrappers. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] memory leak with RCU_TABLE_FREEMartin Schwidefsky1-2/+3
The rcu page table free code uses a couple of bits in the page table pointer passed to tlb_remove_table to discern the different page table types. __tlb_remove_table extracts the type with an incorrect mask which leads to memory leaks. The correct mask is ((FRAG_MASK << 4) | FRAG_MASK). Cc: stable@kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] user per registers vs. ptrace single steppingMartin Schwidefsky1-14/+16
git commit 5e9a2692 "[S390] ptrace cleanup" introduced a regression for the case when both a user PER set (e.g. a storage alteration trace) and PTRACE_SINGLESTEP are active. The new code will overrule the user PER set with a instruction-fetch PER set over the whole address space for ptrace single stepping. The inferior process will be stopped after each instruction with an instruction fetch event. Any other events that may have occurred concurrently are not reported (e.g. storage alteration event) because the control bits for them are not set. The solution is to merge the PER control bits of the user PER set with the PER_EVENT_IFETCH control bit for PTRACE_SINGLESTEP. Cc: stable@kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] topology: fix alloc_masks annotationSebastian Ott1-2/+2
Fix this warning: WARNING: vmlinux.o(.text+0x199b6): Section mismatch in reference from the function alloc_masks() to the function .init.text:__alloc_bootmem() Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] avoid warning in show_cpuinfoMartin Schwidefsky1-1/+1
The .start function and indirectly the .next function of the show_cpuinfo sequential operation uses NR_CPUS as limit instead of nr_cpu_ids. This can cause warnings like this: WARNING: at /usr/src/linux/include/linux/cpumask.h:107 Process lscpu (pid: 575, task: 000000007deb4338, ksp: 000000007794f588) Krnl PSW : 0704000180000000 0000000000106db4 (show_cpuinfo+0x108/0x234) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0 EA:3 Krnl GPRS: 0000000000000003 0000000000791988 000000000071b478 0000000000000004 0000000000000001 0000000000000000 000000007d139500 0000000000000400 0000000000000000 000000000070e24c 000000007d48d600 0000000000000005 000000007d48d600 00000000004dfa10 0000000000106cf8 000000007794fcc0 Krnl Code: 0000000000106da8: 95001000 cli 0(%r1),0 0000000000106dac: a774ffac brc 7,106d04 0000000000106db0: a7f40001 brc 15,106db2 >0000000000106db4: 92011000 mvi 0(%r1),1 0000000000106db8: a7f4ffa6 brc 15,106d04 0000000000106dbc: c0e5000065b4 brasl %r14,113924 0000000000106dc2: c09000303a45 larl %r9,70e24c 0000000000106dc8: c020001eefd4 larl %r2,4e4d70 Replacing NR_CPUS with nr_cpu_ids fixes it. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30[S390] fix mismatch in summation of I/O IRQ statisticsPeter Oberparleiter3-2/+5
Current IRQ statistics support does not show detail counts for I/O interrupts which are processed internally only. The result is a summation count which is way off such as this one: CPU0 CPU1 CPU2 I/O: 1331 710 442 [...] QAI: 15 16 16 [I/O] QDIO Adapter Interrupt QDI: 1 0 0 [I/O] QDIO Interrupt DAS: 706 645 381 [I/O] DASD C15: 26 10 0 [I/O] 3215 C70: 0 0 0 [I/O] 3270 TAP: 0 0 0 [I/O] Tape VMR: 0 0 0 [I/O] Unit Record Devices LCS: 0 0 0 [I/O] LCS CLW: 0 0 0 [I/O] CLAW CTC: 0 0 0 [I/O] CTC APB: 0 0 0 [I/O] AP Bus Fix this by moving I/O interrupt accounting into the common I/O layer. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-29Merge git://github.com/rustyrussell/linuxLinus Torvalds1-0/+10
* git://github.com/rustyrussell/linux: lguest: move process freezing before pending signals check lguest: don't allow KVM-detection cpuid. lguest: Allow running under paravirt-enabled KVM.
2011-10-29Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds4-0/+4
* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6: ARM: mark empty gpio.h files empty gpio: Fix ARM versatile-express build failure of: include errno.h
2011-10-29Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds4-2/+5
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: h8300: Move gpio.h to gpio-internal.h gpio: pl061: add DT binding support gpio: fix build error in include/asm-generic/gpio.h gpiolib: Ensure struct gpio is always defined irq: Add EXPORT_SYMBOL_GPL to function of irq generic-chip gpio-ml-ioh: Use NUMA_NO_NODE not GFP_KERNEL gpio-pch: Use NUMA_NO_NODE not GFP_KERNEL gpio: langwell: ensure alternate function is cleared gpio-pch: Support interrupt function gpio-pch: Save register value in suspend() gpio-pch: modify gpio_nums and mask gpio-pch: support ML7223 IOH n-Bus gpio-pch: add spinlock in suspend/resume processing gpio-pch: Delete invalid "restore" code in suspend() gpio-ml-ioh: Fix suspend/resume issue gpio-ml-ioh: Support interrupt function gpio-ml-ioh: Delete unnecessary code gpio/mxc: add chained_irq_enter/exit() to mx3_gpio_irq_handler() gpio/nomadik: use genirq core to track enablement gpio/nomadik: disable clocks when unused
2011-10-29ARM: mark empty gpio.h files emptyLinus Walleij3-0/+3
It is generally a better idea to make intentionally empty files contain the human-readable /* empty */ comment, also it makes the files play nice with "make distclean". Reported-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-29gpio: Fix ARM versatile-express build failureGrant Likely1-0/+1
A missing mach/gpio.h prevents building gpiolib on versatile express. CC drivers/gpio/gpiolib.o In file included from /.../linux/include/linux/gpio.h:18:0, from /.../linux/drivers/gpio/gpiolib.c:10: /.../linux/arch/arm/include/asm/gpio.h:5:23: fatal error: mach/gpio.h: No such file or directory compilation terminated. make[3]: *** [drivers/gpio/gpiolib.o] Error 1 make[2]: *** [drivers/gpio] Error 2 make[1]: *** [drivers] Error 2 make: *** [sub-make] Error 2 Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds1-0/+5
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (204 commits) [SCSI] qla4xxx: export address/port of connection (fix udev disk names) [SCSI] ipr: Fix BUG on adapter dump timeout [SCSI] megaraid_sas: Fix instance access in megasas_reset_timer [SCSI] hpsa: change confusing message to be more clear [SCSI] iscsi class: fix vlan configuration [SCSI] qla4xxx: fix data alignment and use nl helpers [SCSI] iscsi class: fix link local mispelling [SCSI] iscsi class: Replace iscsi_get_next_target_id with IDA [SCSI] aacraid: use lower snprintf() limit [SCSI] lpfc 8.3.27: Change driver version to 8.3.27 [SCSI] lpfc 8.3.27: T10 additions for SLI4 [SCSI] lpfc 8.3.27: Fix queue allocation failure recovery [SCSI] lpfc 8.3.27: Change algorithm for getting physical port name [SCSI] lpfc 8.3.27: Changed worst case mailbox timeout [SCSI] lpfc 8.3.27: Miscellanous logic and interface fixes [SCSI] megaraid_sas: Changelog and version update [SCSI] megaraid_sas: Add driver workaround for PERC5/1068 kdump kernel panic [SCSI] megaraid_sas: Add multiple MSI-X vector/multiple reply queue support [SCSI] megaraid_sas: Add support for MegaRAID 9360/9380 12GB/s controllers [SCSI] megaraid_sas: Clear FUSION_IN_RESET before enabling interrupts ...
2011-10-28Merge branch 'for-linus' of ↵Linus Torvalds9-40/+128
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (549 commits) ALSA: hda - Fix ADC input-amp handling for Cx20549 codec ALSA: hda - Keep EAPD turned on for old Conexant chips ALSA: hda/realtek - Fix missing volume controls with ALC260 ASoC: wm8940: Properly set codec->dapm.bias_level ALSA: hda - Fix pin-config for ASUS W90V ALSA: hda - Fix surround/CLFE headphone and speaker pins order ALSA: hda - Fix typo ALSA: Update the sound git tree URL ALSA: HDA: Add new revision for ALC662 ASoC: max98095: Convert codec->hw_write to snd_soc_write ASoC: keep pointer to resource so it can be freed ASoC: sgtl5000: Fix wrong mask in some snd_soc_update_bits calls ASoC: wm8996: Fix wrong mask for setting WM8996_AIF_CLOCKING_2 ASoC: da7210: Add support for line out and DAC ASoC: da7210: Add support for DAPM ALSA: hda/realtek - Fix DAC assignments of multiple speakers ASoC: Use SGTL5000_LINREG_VDDD_MASK instead of hardcoded mask value ASoC: Set sgtl5000->ldo in ldo_regulator_register ASoC: wm8996: Use SND_SOC_DAPM_AIF_OUT for AIF2 Capture ASoC: wm8994: Use SND_SOC_DAPM_AIF_OUT for AIF3 Capture ...
2011-10-28Merge branch 'next-rebase' of ↵Linus Torvalds9-15/+15
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci * 'next-rebase' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: PCI: Clean-up MPS debug output pci: Clamp pcie_set_readrq() when using "performance" settings PCI: enable MPS "performance" setting to properly handle bridge MPS PCI: Workaround for Intel MPS errata PCI: Add support for PASID capability PCI: Add implementation for PRI capability PCI: Export ATS functions to modules PCI: Move ATS implementation into own file PCI / PM: Remove unnecessary error variable from acpi_dev_run_wake() PCI hotplug: acpiphp: Prevent deadlock on PCI-to-PCI bridge remove PCI / PM: Extend PME polling to all PCI devices PCI quirk: mmc: Always check for lower base frequency quirk for Ricoh 1180:e823 PCI: Make pci_setup_bridge() non-static for use by arch code x86: constify PCI raw ops structures PCI: Add quirk for known incorrect MPSS PCI: Add Solarflare vendor ID and SFC4000 device IDs
2011-10-28Merge branch 'for-linus' of ↵Linus Torvalds7-58/+32
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (83 commits) mmc: fix compile error when CONFIG_BLOCK is not enabled mmc: core: Cleanup eMMC4.5 conditionals mmc: omap_hsmmc: if multiblock reads are broken, disable them mmc: core: add workaround for controllers with broken multiblock reads mmc: core: Prevent too long response times for suspend mmc: recognise SDIO cards with SDIO_CCCR_REV 3.00 mmc: sd: Handle SD3.0 cards not supporting UHS-I bus speed mode mmc: core: support HPI send command mmc: core: Add cache control for eMMC4.5 device mmc: core: Modify the timeout value for writing power class mmc: core: new discard feature support at eMMC v4.5 mmc: core: mmc sanitize feature support for v4.5 mmc: dw_mmc: modify DATA register offset mmc: sdhci-pci: add flag for devices that can support runtime PM mmc: omap_hsmmc: ensure pbias configuration is always done mmc: core: Add Power Off Notify Feature eMMC 4.5 mmc: sdhci-s3c: fix potential NULL dereference mmc: replace printk with appropriate display macro mmc: core: Add default timeout value for CMD6 mmc: sdhci-pci: add runtime pm support ...
2011-10-28Merge branch 'devel-stable' of ↵Linus Torvalds519-2881/+7219
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (178 commits) ARM: 7139/1: fix compilation with CONFIG_ARM_ATAG_DTB_COMPAT and large TEXT_OFFSET ARM: gic, local timers: use the request_percpu_irq() interface ARM: gic: consolidate PPI handling ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H ARM: mach-s5p64x0: remove mach/memory.h ARM: mach-s3c64xx: remove mach/memory.h ARM: plat-mxc: remove mach/memory.h ARM: mach-prima2: remove mach/memory.h ARM: mach-zynq: remove mach/memory.h ARM: mach-bcmring: remove mach/memory.h ARM: mach-davinci: remove mach/memory.h ARM: mach-pxa: remove mach/memory.h ARM: mach-ixp4xx: remove mach/memory.h ARM: mach-h720x: remove mach/memory.h ARM: mach-vt8500: remove mach/memory.h ARM: mach-s5pc100: remove mach/memory.h ARM: mach-tegra: remove mach/memory.h ARM: plat-tcc: remove mach/memory.h ARM: mach-mmp: remove mach/memory.h ARM: mach-cns3xxx: remove mach/memory.h ... Fix up mostly pretty trivial conflicts in: - arch/arm/Kconfig - arch/arm/include/asm/localtimer.h - arch/arm/kernel/Makefile - arch/arm/mach-shmobile/board-ap4evb.c - arch/arm/mach-u300/core.c - arch/arm/mm/dma-mapping.c - arch/arm/mm/proc-v7.S - arch/arm/plat-omap/Kconfig largely due to some CONFIG option renaming (ie CONFIG_PM_SLEEP -> CONFIG_ARM_CPU_SUSPEND for the arm-specific suspend code etc) and addition of NEED_MACH_MEMORY_H next to HAVE_IDE.
2011-10-28Merge branch 'for-next' of ↵Linus Torvalds6-6/+12
git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue: (21 commits) leases: fix write-open/read-lease race nfs: drop unnecessary locking in llseek ext4: replace cut'n'pasted llseek code with generic_file_llseek_size vfs: add generic_file_llseek_size vfs: do (nearly) lockless generic_file_llseek direct-io: merge direct_io_walker into __blockdev_direct_IO direct-io: inline the complete submission path direct-io: separate map_bh from dio direct-io: use a slab cache for struct dio direct-io: rearrange fields in dio/dio_submit to avoid holes direct-io: fix a wrong comment direct-io: separate fields only used in the submission path from struct dio vfs: fix spinning prevention in prune_icache_sb vfs: add a comment to inode_permission() vfs: pass all mask flags check_acl and posix_acl_permission vfs: add hex format for MAY_* flag values vfs: indicate that the permission functions take all the MAY_* flags compat: sync compat_stats with statfs. vfs: add "device" tag to /proc/self/mountstats cleanup: vfs: small comment fix for block_invalidatepage ... Fix up trivial conflict in fs/gfs2/file.c (llseek changes)
2011-10-28compat: sync compat_stats with statfs.Eric W. Biederman6-6/+12
This was found by inspection while tracking a similar bug in compat_statfs64, that has been fixed in mainline since decemeber. - This fixes a bug where not all of the f_spare fields were cleared on mips and s390. - Add the f_flags field to struct compat_statfs - Copy f_flags to userspace in case someone cares. - Use __clear_user to copy the f_spare field to userspace to ensure that all of the elements of f_spare are cleared. On some architectures f_spare is has 5 ints and on some architectures f_spare only has 4 ints. Which makes the previous technique of clearing each int individually broken. I don't expect anyone actually uses the old statfs system call anymore but if they do let them benefit from having the compat and the native version working the same. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-10-28Merge branch 'x86-vdso-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86-64, doc: Remove int 0xcc from entry_64.S documentation x86, vsyscall: Add missing <asm/fixmap.h> to arch/x86/mm/fault.c Fix up trivial conflicts in arch/x86/mm/fault.c (asm/fixmap.h vs asm/vsyscall.h: both work, which to use? Whatever..)
2011-10-28Merge branch 'x86-uv-for-linus' of ↵Linus Torvalds4-16/+46
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: uv2: Workaround for UV2 Hub bug (system global address format)
2011-10-28Merge branch 'x86-spinlocks-for-linus' of ↵Linus Torvalds9-357/+257
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-spinlocks-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, ticketlock: remove obsolete comment x86, cmpxchg: Use __compiletime_error() to make usage messages a bit nicer x86, ticketlock: Make __ticket_spin_trylock common x86, ticketlock: Convert __ticket_spin_lock to use xadd() x86, ticketlock: Convert spin loop to C x86, ticketlock: Clean up types and accessors x86: Use xadd helper more widely x86: Add xadd helper macro x86, cmpxchg: Unify cmpxchg into cmpxchg.h x86, cmpxchg: Move 64-bit set64_bit() to match 32-bit x86, cmpxchg: Move 32-bit __cmpxchg_wrong_size to match 64 bit. x86, cmpxchg: <linux/alternative.h> has LOCK_PREFIX
2011-10-28Merge branch 'x86-rdrand-for-linus' of ↵Linus Torvalds5-0/+160
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, random: Verify RDRAND functionality and allow it to be disabled x86, random: Architectural inlines to get random integers with RDRAND random: Add support for architectural random hooks Fix up trivial conflicts in drivers/char/random.c: the architectural random hooks touched "get_random_int()" that was simplified to use MD5 and not do the keyptr thing any more (see commit 6e5714eaf77d: "net: Compute protocol sequence numbers and fragment IDs using MD5").
2011-10-28Merge branch 'x86-microcode-for-linus' of ↵Linus Torvalds8-26/+44
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, microcode, AMD: Add microcode revision to /proc/cpuinfo x86, microcode: Correct microcode revision format coretemp: Get microcode revision from cpu_data x86, intel: Use c->microcode for Atom errata check x86, intel: Output microcode revision in /proc/cpuinfo x86, microcode: Don't request microcode from userspace unnecessarily Fix up trivial conflicts in arch/x86/kernel/cpu/amd.c (conflict between moving AMD BSP code to cpu_dev helper function and adding AMD microcode revision to /proc/cpuinfo code)
2011-10-28Merge branch 'x86-hyperv-for-linus' of ↵Linus Torvalds1-0/+23
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Hyper-V: Integrate the clocksource with Hyper-V detection code Fix up conflicts in drivers/staging/hv/Makefile manually (some of the hv code has moved out of staging to drivers/hv/)
2011-10-28Merge branch 'x86-geode-for-linus' of ↵Linus Torvalds4-0/+158
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-geode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: geode: New PCEngines Alix system driver
2011-10-28Merge branch 'x86-cpufeature-for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, cpu: Add cpufeature flag for PCIDs
2011-10-28Merge branch 'x86-cpu-for-linus' of ↵Linus Torvalds9-116/+206
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, amd: Include linux/elf.h since we use stuff from asm/elf.h x86: cache_info: Update calculation of AMD L3 cache indices x86: cache_info: Kill the atomic allocation in amd_init_l3_cache() x86: cache_info: Kill the moronic shadow struct x86: cache_info: Remove bogus free of amd_l3_cache data x86, amd: Include elf.h explicitly, prepare the code for the module.h split x86-32, amd: Move va_align definition to unbreak 32-bit build x86, amd: Move BSP code to cpu_dev helper x86: Add a BSP cpu_dev helper x86, amd: Avoid cache aliasing penalties on AMD family 15h
2011-10-27mmc: omap_hsmmc: if multiblock reads are broken, disable themPaul Walmsley1-1/+18
When device data indicates that multiple block reads are not supported on a given HSMMC controller instance, log a message to the console, and pass the appropriate MMC capability flag to the MMC core. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Dave Hylands <dhylands@gmail.com> Tested-by: Steve Sakoman <sakoman@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27Merge branch 'clk' of ↵Linus Torvalds2-1/+17
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'clk' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: ARM: 7131/1: clkdev: Add Common Macro for clk_lookup clk: spi-pl022: convert to clk_prepare()/clk_unprepare() clk: timer-sp: convert to clk_prepare()/clk_unprepare() clk: sa1111: convert to clk_prepare()/clk_unprepare() clk: mmci: convert to clk_prepare()/clk_unprepare() clk: amba-pl011: convert to clk_prepare()/clk_unprepare() clk: amba-pl010: convert to clk_prepare()/clk_unprepare() clk: amba-clcd: convert to clk_prepare()/clk_unprepare() clk: amba bus: convert to clk_prepare()/clk_unprepare() clk: provide prepare/unprepare functions
2011-10-27Merge branch 'gpio' of ↵Linus Torvalds226-3129/+962
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (43 commits) ARM: 7135/1: ep93xx: bring back missing <mach/gpio.h> ARM: 7104/1: plat-pxa: break out GPIO driver specifics ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystem ARM: 7042/3: mach-ep93xx: break out GPIO driver specifics ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h> ARM: 7094/1: arm/tegra: Move EN_VDD_1V05_GPIO to board-harmony.h ARM: 7083/1: rewrite U300 GPIO to use gpiolib ARM: 7074/1: gpio: davinci: eliminate unused variable warnings ARM: 7063/1: Orion: gpio: add missing include of linux/types.h ARM: 7055/1: arm/tegra: mach/gpio.h: include linux/types.h to fix build ARM: 7054/1: arm/tegra: Delete custom gpio_to_irq, and irq_to_gpio ARM: 7053/1: gpio/tegra: Implement gpio_chip.to_irq ARM: 7052/1: gpio/tegra: Remove use of irq_to_gpio ARM: 7057/1: mach-pnx4008: rename GPIO header ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h> ARM: 7050/1: mach-sa1100: delete irq_to_gpio() function ARM: 7049/1: mach-sa1100: move SA1100 GPIO driver to GPIO subsystem ARM: 7045/1: mach-lpc32xx: break out GPIO driver specifics ARM: 7044/1: mach-lpc32xx: move LPC32XX GPIO driver to GPIO subsystem ARM: 7043/1: mach-ixp2000: rename GPIO header ... Fix up trivial conflicts in arch/arm/mach-u300/Kconfig manually
2011-10-27lguest: don't allow KVM-detection cpuid.Rusty Russell1-0/+10
Host might be running under KVM, but we shouldn't allow Guest to think it can use KVM hypercalls (it can't, and it will embarrass itself if it tries). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-10-26h8300: Move gpio.h to gpio-internal.hMark Brown3-2/+2
The current h8300 GPIO implementation doesn't provide the standard GPIO API, and in fact provides only direction control rather than normal GPIO functionality. Currently this is only used by the platform interrupt implementation rather than by a range of drivers so in preparation for moving over to gpiolib move the header out of the way of the gpiolib header, allowing a default GPIO implementation to be provided. For actual use of these GPIOs with gpiolib a real driver would still need to be written but there appears to be no current need for this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-26msm: mmc: Remove "pio_irq" resourceSahitya Tummala2-48/+0
On some targets, MCI_IRQ_MASK1 is not routed to the MSM in which case only "cmd_irq" must be used even for PIO. With this change, all the targets will use only "cmd_irq" for both CMD and PIO. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26msm: Implement init_card operation for MSM SDCCAlexander Tarasikov1-8/+1
This allows boards with non-standard sdio cards to fill the CIS/CCCR data. It is particularly important for old msm72k boards using wl1251. Also drop the obsolete embedded_sdio_data structure from the header as it was intended to surve a similiar purpose but was not implemented. Signed-off-by: Alexander Tarasikov <alexander.tarasikov@gmail.com> Acked-by: Sahitya Tummala <stummala@codeaurora.org> [davidb: minor formatting cleanup] Signed-off-by: David Brown <davidb@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26ARM: shmobile: ag5evm, ap4: Named SDHI IRQ sourcesSimon Horman2-0/+12
This allows specific (non-multiplexed) IRQ handlers to be used. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Paul Mundt <lethal@linux-sh.org> Acked-by: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Chris Ball <cjb@laptop.org>