- Nov 22, 2012
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Simon Guinot authored
This patch adds DT board setup for the LaCie NAS Network Space Mini v2 (aka SafeBox). The hardware characteristics are very close to those of the Network Space Lite v2. The main difference are: - A GPIO fan which is only available on the NS2 Mini. - A single USB host port is wired on the NS2 Mini. The NS2 Lite provides an additional dual-mode USB port (host/device). Signed-off-by:
Simon Guinot <simon.guinot@sequanux.org> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Jason Cooper <jason@lakedaemon.net>
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Simon Guinot authored
This patch adds DT board setup for the LaCie NAS Network Space Lite v2. This board is derived from the Network Space v2 and a lot of hardware characteristics are shared. - CPU: Marvell 88F6192 800Mhz - SDRAM memory: 128MB DDR2 200Mhz - 1 SATA port: internal - Gigabit ethernet: PHY Marvell 88E1318 - Flash memory: SPI NOR 512KB (Macronix MX25L4005A) - i2c EEPROM: 512 bytes (24C04 type) - 2 USB2 ports: host and host/device - 1 push button - 1 SATA LED (bi-color, blue and red) Note that the SATA LED is not compatible with the driver leds-ns2. The LED behaviour ("on", "off" or "SATA activity blink") is controlled via a single MPP (21). Signed-off-by:
Simon Guinot <simon.guinot@sequanux.org> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Jason Cooper <jason@lakedaemon.net>
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Simon Guinot authored
This patch adds DT board setup for LaCie Network Space v2 and parents, based on the Marvell Kirkwood 6281 SoC. This includes Network Space v2 (Max) and Internet Space v2. Signed-off-by:
Simon Guinot <simon.guinot@sequanux.org> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Jason Cooper <jason@lakedaemon.net>
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Jason Gunthorpe authored
mv64xxx_of_config requires that the tclk frequency be found through the clk stuff rather than through device tree, so add another override for the 2nd controller. Signed-off-by:
Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by:
Jason Cooper <jason@lakedaemon.net>
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- Nov 17, 2012
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Andrew Morton authored
Revert commit 7f1290f2 ("mm: fix-up zone present pages") That patch tried to fix a issue when calculating zone->present_pages, but it caused a regression on 32bit systems with HIGHMEM. With that change, reset_zone_present_pages() resets all zone->present_pages to zero, and fixup_zone_present_pages() is called to recalculate zone->present_pages when the boot allocator frees core memory pages into buddy allocator. Because highmem pages are not freed by bootmem allocator, all highmem zones' present_pages becomes zero. Various options for improving the situation are being discussed but for now, let's return to the 3.6 code. Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: Petr Tesarik <ptesarik@suse.cz> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Acked-by:
David Rientjes <rientjes@google.com> Tested-by:
Chris Clayton <chris2553@googlemail.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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David Rientjes authored
Using a cross-compiler to fix another issue, the following build error occurred for mips defconfig: arch/mips/fw/arc/misc.c: In function 'ArcHalt': arch/mips/fw/arc/misc.c:25:2: error: implicit declaration of function 'local_irq_disable' Fix it up by including irqflags.h. Signed-off-by:
David Rientjes <rientjes@google.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Takashi Iwai authored
The commit [ad756a16 : KVM: VMX: Implement PCID/INVPCID for guests with EPT] introduced the unconditional access to SECONDARY_VM_EXEC_CONTROL, and this triggers kernel warnings like below on old CPUs: vmwrite error: reg 401e value a0568000 (err 12) Pid: 13649, comm: qemu-kvm Not tainted 3.7.0-rc4-test2+ #154 Call Trace: [<ffffffffa0558d86>] vmwrite_error+0x27/0x29 [kvm_intel] [<ffffffffa054e8cb>] vmcs_writel+0x1b/0x20 [kvm_intel] [<ffffffffa054f114>] vmx_cpuid_update+0x74/0x170 [kvm_intel] [<ffffffffa03629b6>] kvm_vcpu_ioctl_set_cpuid2+0x76/0x90 [kvm] [<ffffffffa0341c67>] kvm_arch_vcpu_ioctl+0xc37/0xed0 [kvm] [<ffffffff81143f7c>] ? __vunmap+0x9c/0x110 [<ffffffffa0551489>] ? vmx_vcpu_load+0x39/0x1a0 [kvm_intel] [<ffffffffa0340ee2>] ? kvm_arch_vcpu_load+0x52/0x1a0 [kvm] [<ffffffffa032dcd4>] ? vcpu_load+0x74/0xd0 [kvm] [<ffffffffa032deb0>] kvm_vcpu_ioctl+0x110/0x5e0 [kvm] [<ffffffffa032e93d>] ? kvm_dev_ioctl+0x4d/0x4a0 [kvm] [<ffffffff8117dc6f>] do_vfs_ioctl+0x8f/0x530 [<ffffffff81139d76>] ? remove_vma+0x56/0x60 [<ffffffff8113b708>] ? do_munmap+0x328/0x400 [<ffffffff81187c8c>] ? fget_light+0x4c/0x100 [<ffffffff8117e1a1>] sys_ioctl+0x91/0xb0 [<ffffffff815a942d>] system_call_fastpath+0x1a/0x1f This patch adds a check for the availability of secondary exec control to avoid these warnings. Cc: <stable@vger.kernel.org> [v3.6+] Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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- Nov 16, 2012
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Catalin Marinas authored
On AArch64, the meaning of the XN bit has changed to UXN (user). The PXN (privileged) bit must be set to prevent kernel execution. Without the PXN bit set, the CPU may speculatively access device memory. This patch ensures that all the mappings that the kernel must not execute from (including user mappings) have the PXN bit set. Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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Christoph Fritz authored
This patch sets HPM (Host power mask bit) to bit 16 according to i.MX Reference Manual. Falsely it was set to bit 8, but this controls pull-up Impedance. Reported-by:
Michael Burkey <mdburkey@gmail.com> Cc: Stable <stable@vger.kernel.org> Signed-off-by:
Christoph Fritz <chf.fritz@googlemail.com> Acked-by:
Eric Bénard <eric@eukrea.com> Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de>
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Wei Yongjun authored
The error-valued pointer clk is used for the arg of kfree, it should be kfree(gate) if clk_register() return ERR_PTR(). dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch ) Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de>
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Johan Hovold authored
Use gpio_is_valid also for overcurrent pins (which are currently negative in many board files). Signed-off-by:
Johan Hovold <jhovold@gmail.com> Acked-by:
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com>
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Nicolas Royer authored
Spare irq support introduced by commit 8fe82a55 (ARM: at91: sparse irq support) involves to add the NR_IRQS_LEGACY offset to irq number. Signed-off-by:
Nicolas Royer <nicolas@eukrea.com> Acked-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by:
Eric Bénard <eric@eukrea.com> Tested-by:
Eric Bénard <eric@eukrea.com> Cc: stable@vger.kernel.org # 3.6
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- Nov 13, 2012
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Ralf Baechle authored
The CBUS UART's interrupt number was wrong conflicting with the interrupt being tied to the Intel PIIX4. Since the PIIX4's interrupt is registered before the CBUS UART which is not being used on most systems this would not be noticed. Attempts to open the ttyS2 CBUS UART would result in: genirq: Flags mismatch irq 18. 00000000 (serial) vs. 00010000 (XT-PIC cascade) serial_link_irq_chain: request failed: -16 for irq: 18 Qemu was written to match the kernel so will need to be fixed also. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Heiko Carstens authored
Select HAVE_ALIGNED_STRUCT_PAGE on s390, so that the slub allocator can make use of compare and swap double for lockless updates. This increases the size of struct page to 64 bytes (instead of 56 bytes), however the performance gain justifies the increased size: - now excactly four struct pages fit into a single cache line; the case that accessing a struct page causes two cache line loads does not exist anymore. - calculating the offset of a struct page within the memmap array is only a simple shift instead of a more expensive multiplication. A "hackbench 200 process 200" run on a 32 cpu system did show an 8% runtime improvement. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
access_ok() returns always "true" on s390. Therefore all access_ok() invocations are rather pointless. However when walking page tables we need to make sure that everything is within bounds of the ASCE limit of the task's address space. So remove the access_ok() call and add the same check we have in get_user_pages_fast(). Reviewed-by:
Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
When walking page tables we need to make sure that everything is within bounds of the ASCE limit of the task's address space. Otherwise we might calculate e.g. a pud pointer which is not within a pud and dereference it. So check against TASK_SIZE (which is the ASCE limit) before walking page tables. Reviewed-by:
Gerald Schaefer <gerald.schaefer@de.ibm.com> Cc: stable@vger.kernel.org Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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Petr Matousek authored
On hosts without the XSAVE support unprivileged local user can trigger oops similar to the one below by setting X86_CR4_OSXSAVE bit in guest cr4 register using KVM_SET_SREGS ioctl and later issuing KVM_RUN ioctl. invalid opcode: 0000 [#2] SMP Modules linked in: tun ip6table_filter ip6_tables ebtable_nat ebtables ... Pid: 24935, comm: zoog_kvm_monito Tainted: G D 3.2.0-3-686-pae EIP: 0060:[<f8b9550c>] EFLAGS: 00210246 CPU: 0 EIP is at kvm_arch_vcpu_ioctl_run+0x92a/0xd13 [kvm] EAX: 00000001 EBX: 000f387e ECX: 00000000 EDX: 00000000 ESI: 00000000 EDI: 00000000 EBP: ef5a0060 ESP: d7c63e70 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process zoog_kvm_monito (pid: 24935, ti=d7c62000 task=ed84a0c0 task.ti=d7c62000) Stack: 00000001 f70a1200 f8b940a9 ef5a0060 00000000 00200202 f8769009 00000000 ef5a0060 000f387e eda5c020 8722f9c8 00015bae 00000000 ed84a0c0 ed84a0c0 c12bf02d 0000ae80 ef7f8740 fffffffb f359b740 ef5a0060 f8b85dc1 0000ae80 Call Trace: [<f8b940a9>] ? kvm_arch_vcpu_ioctl_set_sregs+0x2fe/0x308 [kvm] ... [<c12bfb44>] ? syscall_call+0x7/0xb Code: 89 e8 e8 14 ee ff ff ba 00 00 04 00 89 e8 e8 98 48 ff ff 85 c0 74 1e 83 7d 48 00 75 18 8b 85 08 07 00 00 31 c9 8b 95 0c 07 00 00 <0f> 01 d1 c7 45 48 01 00 00 00 c7 45 1c 01 00 00 00 0f ae f0 89 EIP: [<f8b9550c>] kvm_arch_vcpu_ioctl_run+0x92a/0xd13 [kvm] SS:ESP 0068:d7c63e70 QEMU first retrieves the supported features via KVM_GET_SUPPORTED_CPUID and then sets them later. So guest's X86_FEATURE_XSAVE should be masked out on hosts without X86_FEATURE_XSAVE, making kvm_set_cr4 with X86_CR4_OSXSAVE fail. Userspaces that allow specifying guest cpuid with X86_FEATURE_XSAVE even on hosts that do not support it, might be susceptible to this attack from inside the guest as well. Allow setting X86_CR4_OSXSAVE bit only if host has XSAVE support. Signed-off-by:
Petr Matousek <pmatouse@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Fabio Estevam authored
Since commit edc88ceb (ARM: be really quiet when building with 'make -s') the following output is generated when building a kernel for ARM: echo ' Kernel: arch/arm/boot/Image is ready' Kernel: arch/arm/boot/Image is ready Building modules, stage 2. echo ' Kernel: arch/arm/boot/zImage is ready' Kernel: arch/arm/boot/zImage is ready As per Documentation/kbuild/makefiles.txt the correct way of using kecho is '@$(kecho)'. Make this change so no more unwanted 'echo' messages are displayed. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
Arnd Bergmann <arnd@arndb.de>
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- Nov 12, 2012
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Heiko Carstens authored
The current topology code confuses core id vs physical package id. In other words /sys/devices/system/cpu/cpuX/topology/core_id displays the physical_package_id (aka socket id) instead of the core id. The physical_package_id sysfs attribute always displays "-1" instead of the socket id. Fix this mix-up with a small patch which defines and initializes topology_physical_package_id correctly and fixes the broken core id handling. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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Martin Schwidefsky authored
If user space is running in primary mode it can switch to secondary or access register mode, this is used e.g. in the clock_gettime code of the vdso. If a signal is delivered to the user space process while it has been running in access register mode the signal handler is executed in access register mode as well which will result in a crash most of the time. Set the address space control bits in the PSW to the default for the execution of the signal handler and make sure that the previous address space control is restored on signal return. Take care that user space can not switch to the kernel address space by modifying the registers in the signal frame. Cc: stable@vger.kernel.org Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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- Nov 10, 2012
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David S. Miller authored
We tried linking in a single built object to hold the device table, but only works if all of the sparc64 crypto modules get built the same way (modular vs. non-modular). Just include the device ID stub into each driver source file so that the table gets compiled into the correct result in all cases. Reported-by:
Meelis Roos <mroos@linux.ee> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Sparc32 already supported it, as a consequence of using the generic atomic64 implementation. And the sparc64 implementation is rather trivial. This allows us to set ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE for all of sparc, and avoid the annoying warning from lib/atomic64_test.c Signed-off-by:
David S. Miller <davem@davemloft.net>
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Andreas Larsson authored
This bug-fix makes sure that of_address_to_resource is defined extern for sparc so that the sparc-specific implementation of of_address_to_resource() is once again used when including include/linux/of_address.h in a sparc context. A number of drivers in mainline relies on this function working for sparc. The bug was introduced in a850a755 , "of/address: add empty static inlines for !CONFIG_OF". Contrary to that commit title, the static inlines are added for !CONFIG_OF_ADDRESS, and CONFIG_OF_ADDRESS is never defined for sparc. This is good behavior for the other functions in include/linux/of_address.h, as the extern functions defined in drivers/of/address.c only gets linked when OF_ADDRESS is configured. However, for of_address_to_resource there exists a sparc-specific implementation in arch/sparc/arch/sparc/kernel/of_device_common.c Solution suggested by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
Andreas Larsson <andreas@gaisler.com> Acked-by:
Rob Herring <rob.herring@calxeda.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Andreas Larsson authored
If an irq is being unlinked concurrently with leon_handle_ext_irq, irq_map[eirq] might be null in leon_handle_ext_irq. Make sure that this is not dereferenced. Signed-off-by:
Andreas Larsson <andreas@gaisler.com> Acked-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- Nov 09, 2012
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Stefano Stabellini authored
The commit 911dec0d "xen/arm: Fix compile errors when drivers are compiled as modules." exports the neccessary functions. But to guard ourselves against out-of-tree modules and future drivers hitting this, lets export all of the relevant hypercalls. Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Jim Quinlan authored
For non MIPSr2 processors, such as the BMIPS 5000, calls to arch_local_irq_disable() and others may be preempted, and in doing so a stale value may be restored to c0_status. This fix disables preemption for such processors prior to the call and enables it after the call. Those functions that needed this fix have been "outlined" to mips-atomic.c, as they are no longer good candidates for inlining. This bug was observed in a BMIPS 5000, occuring once every few hours in a continuous reboot test. It was traced to the write_lock_irq() function which was being invoked in release_task() in exit.c. By placing a number of "nops" inbetween the mfc0/mtc0 pair in arch_local_irq_disable(), which is called by write_lock_irq(), we were able to greatly increase the occurance of this bug. Similarly, the application of this commit silenced the bug. Signed-off-by:
Jim Quinlan <jim2101024@gmail.com> Cc: linux-mips@linux-mips.org Cc: David Daney <ddaney.cavm@gmail.com> Cc: Kevin Cernekee cernekee@gmail.com Cc: Jim Quinlan <jim2101024@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/4321/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Jim Quinlan authored
The "else clause" of most functions in bitops.h invoked raw_local_irq_{save,restore}() and in doing so had a dependency on irqflags.h. This fix moves said code to bitops.c, removing the dependency. Signed-off-by:
Jim Quinlan <jim2101024@gmail.com> Cc: linux-mips@linux-mips.org Cc: David Daney <ddaney.cavm@gmail.com> Cc: Kevin Cernekee cernekee@gmail.com Cc: Jim Quinlan <jim2101024@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/4320/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Jim Quinlan authored
[ralf@linux-mips.org: No functional change but it's consistent with how use types elsewhere in the code.] Signed-off-by:
Jim Quinlan <jim2101024@gmail.com> Cc: linux-mips@linux-mips.org Cc: David Daney <ddaney.cavm@gmail.com> Cc: Kevin Cernekee cernekee@gmail.com Cc: Jim Quinlan <jim2101024@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/4319/ Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
So far is_compat_task() was testing for 32-bit registers if O32 support was enabled and if O32 support was disabled but N32 enabled it was testing for 32-bit address space. So if both O32 and N32 were enabled a N32 task was not considered a compat task, whops. This still leaves potential cases where O32 and N32 need different treatment unsolved. But that's another commit. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Kees Cook authored
This config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it. CC: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by:
Kees Cook <keescook@chromium.org> Acked-by:
Guan Xuetao <gxt@mprc.pku.edu.cn>
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Acked-and-Tested-by:
Guan Xuetao <gxt@mprc.pku.edu.cn>
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Acked-and-Tested-by:
Guan Xuetao <gxt@mprc.pku.edu.cn>
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Guan Xuetao authored
All the headers but kvm_para.h use the Kbuild infrastructure to get to the asm-generic headers. Cc: linux-kbuild@vger.kernel.org Signed-off-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
Guan Xuetao <gxt@mprc.pku.edu.cn>
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David Howells authored
Signed-off-by:
David Howells <dhowells@redhat.com> Acked-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Michael Kerrisk <mtk.manpages@gmail.com> Acked-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by:
Dave Jones <davej@redhat.com>
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Guan Xuetao authored
UniCore32-bugfix: Remove definitions in asm/bug.h to solve difference between native and cross compiler For kernel/bound.c being compiled by native compiler, it will generate following errors in gcc 4.4.3: CC kernel/bounds.s In file included from include/linux/bug.h:4, from include/linux/page-flags.h:9, from kernel/bounds.c:9: arch/unicore32/include/asm/bug.h:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void' arch/unicore32/include/asm/bug.h:23: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void' So, we moved definitions in asm/bug.h to arch/unicore32/kernel/setup.h to solve the problem. Signed-off-by:
Guan Xuetao <gxt@mprc.pku.edu.cn>
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Guan Xuetao authored
When disintegrate system.h, I left an error in asm/cmpxchg.h, which will result in following error: arch/unicore32/include/asm/cmpxchg.h: In function '__xchg': arch/unicore32/include/asm/cmpxchg.h:38: error: void value not ignored as it ought to be Signed-off-by:
Guan Xuetao <gxt@mprc.pku.edu.cn>
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Guan Xuetao authored
Because our PCI-bus handler confines dma zone into 128M, we should add CONFIG_ZONE_DMA for all boards. Otherwise, all memory bigger than 128M will be pushed into ZONE_MOVABLE. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Liu Guoli <liuguoli@mprc.pku.edu.cn> Signed-off-by:
Guan Xuetao <gxt@mprc.pku.edu.cn>
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Kautuk Consul authored
Commit d065bd81 (mm: retry page fault when blocking on disk transfer) and commit 37b23e05 (x86,mm: make pagefault killable) The above commits introduced changes into the x86 pagefault handler for making the page fault handler retryable as well as killable. These changes reduce the mmap_sem hold time, which is crucial during OOM killer invocation. Port these changes to unicore32. Signed-off-by:
Kautuk Consul <consul.kautuk@gmail.com> Acked-by:
Guan Xuetao <gxt@mprc.pku.edu.cn>
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