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* Fix <math-emu/soft-fp.h> tpyoAl Viro2007-08-181-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Fix to keep watchdog disabled by default for i386/x86_64Daniel Gollub2007-08-182-2/+4
| | | | | | | | | | | | | | | | | | Fixed wrong expression which enabled watchdogs even if nmi_watchdog kernel parameter wasn't set. This regression got slightly introduced with commit b7471c6da94d30d3deadc55986cc38d1ff57f9ca. Introduced NMI_DISABLED (-1) which allows to switch the value of NMI_DEFAULT without breaking the APIC NMI watchdog code (again). Fixes: https://bugzilla.novell.com/show_bug.cgi?id=298084 http://bugzilla.kernel.org/show_bug.cgi?id=7839 And likely some more nmi_watchdog=0 related issues. Signed-off-by: Daniel Gollub <dgollub@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: Fix a couple busy loops in mach_wakecpu.h:wait_for_init_deassert()Satyam Sharma2007-08-182-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use cpu_relax() in the busy loops, as atomic_read() doesn't automatically imply volatility for i386 and x86_64. x86_64 doesn't have this issue because it open-codes the while loop in smpboot.c:smp_callin() itself that already uses cpu_relax(). For i386, however, smpboot.c:smp_callin() calls wait_for_init_deassert() which is buggy for mach-default and mach-es7000 cases. [ I test-built a kernel -- smp_callin() itself got inlined in its only callsite, smpboot.c:start_secondary() -- and the relevant piece of code disassembles to the following: 0xc1019704 <start_secondary+12>: mov 0xc144c4c8,%eax 0xc1019709 <start_secondary+17>: test %eax,%eax 0xc101970b <start_secondary+19>: je 0xc1019709 <start_secondary+17> init_deasserted (at 0xc144c4c8) gets fetched into %eax only once and then we loop over the test of the stale value in the register only, so these look like real bugs to me. With the fix below, this becomes: 0xc1019706 <start_secondary+14>: pause 0xc1019708 <start_secondary+16>: cmpl $0x0,0xc144c4c8 0xc101970f <start_secondary+23>: je 0xc1019706 <start_secondary+14> which looks nice and healthy. ] Thanks to Heiko Carstens for noticing this. Signed-off-by: Satyam Sharma <satyam@infradead.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh64-2.6Linus Torvalds2007-08-181-0/+18
|\ | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh64-2.6: sh64: arch/sh64/kernel/setup.c: duplicate include removal. sh64: arch/sh64/kernel/signal.c: duplicate include removal sh64: Add missing dma_sync_single_for_*().
| * sh64: Add missing dma_sync_single_for_*().Paul Mundt2007-08-101-0/+18
| | | | | | | | | | | | Follow the sparc64 and sh change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.23Linus Torvalds2007-08-181-0/+19
|\ \ | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.23: sh: remove extraneous ; on scif_sercon_putc wait loop sh: Add missing dma_sync_single_range_for_*(). sh: panic on machvec section misalignment. sh: Fix PTRACE_PEEKTEXT/PEEKDATA fallout from generic_ptrace_peekdata().
| * | sh: Add missing dma_sync_single_range_for_*().Paul Mundt2007-08-101-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The b44 build uses these, caught by allmodconfig: drivers/net/b44.c: In function `b44_sync_dma_desc_for_cpu': drivers/net/b44.c:159: error: implicit declaration of function `dma_sync_single_range_for_cpu' Follow the sparc64 change and stub them in. Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | Merge branch 'release' of ↵Linus Torvalds2007-08-186-4/+20
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: Cross-compilation between e.g. i386 -> 64bit could break -> work around it [IA64] Enable early console for Ski simulator [IA64] forbid ptrace changes psr.ri to 3 [IA64] Failure to grow RBS [IA64] Fix processor_get_freq [IA64] SGI Altix : fix a force_interrupt bug on altix [IA64] Update arch/ia64/configs/* s/SLAB/SLUB/ [IA64] get back PT_IA_64_UNWIND program header [IA64] need NOTES in vmlinux.lds.S [IA64] make unwinder stop at last frame of the bootloader [IA64] Clean up CPE handler registration [IA64] Include Kconfig.preempt [IA64] SN2 needs platform specific irq_to_vector() function. [IA64] Use atomic64_read to read an atomic64_t. [IA64] disable irq's and check need_resched before safe_halt
| * | | Cross-compilation between e.g. i386 -> 64bit could break -> work around itThomas Renninger2007-08-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adrian Bunk: scripts/mod/file2alias.c is compiled with HOSTCC and ensures that kernel_ulong_t is correct, but it can't cope with different padding on different architectures. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] SN2 needs platform specific irq_to_vector() function.Kenji Kaneshige2007-08-134-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add base support for implementing platform_irq_to_vector(), and then use it on SN2. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Acked-by: John Keller <jpk@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] Use atomic64_read to read an atomic64_t.Andreas Schwab2007-08-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The routines ia64_atomic64_{add,sub} mistakenly use atomic_read() to grab the old value instead of using atomic64_read(). Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2007-08-182-5/+4
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/mlx4: Incorrect semicolon after if statement mlx4_core: Wait 1 second after reset before accessing device IPoIB: Fix leak in ipoib_transport_dev_init() error path IB/mlx4: Fix opcode returned in RDMA read completion IB/srp: Add OUI for new Cisco targets IB/srp: Wrap OUI checking for workarounds in helper functions RDMA/cxgb3: Always call low level send function via cxgb3_ofld_send() IB: Move the macro IB_UMEM_MAX_PAGE_CHUNK() to umem.c IB: Include <linux/list.h> and <linux/rwsem.h> from <rdma/ib_verbs.h> IB: Include <linux/list.h> from <rdma/ib_mad.h> IB/mad: Fix address handle leak in mad_rmpp IB/mad: agent_send_response() should be void IB/mad: Fix memory leak in switch handling in ib_mad_recv_done_handler() IB/mad: Fix error path if response alloc fails in ib_mad_recv_done_handler() IB/sa: Don't need to check for default P_Key twice IB/core: Ignore membership bit in ib_find_pkey()
| * | | | IB: Move the macro IB_UMEM_MAX_PAGE_CHUNK() to umem.cDotan Barak2007-08-031-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After moving the definition of struct ib_umem_chunk from ib_verbs.h to ib_umem.h there isn't any reason for the macro IB_UMEM_MAX_PAGE_CHUNK to stay in ib_verbs.h. Move the macro to umem.c, the only place where it is used. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | | IB: Include <linux/list.h> and <linux/rwsem.h> from <rdma/ib_verbs.h>Dotan Barak2007-08-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ib_verbs.h uses struct list_head and rw_semaphore, so while the files <linux/list.h> and <linux/rwsem.h> seem to be pulled in indirectly by the other header files it includes, the right thing is to include those files directly. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | | IB: Include <linux/list.h> from <rdma/ib_mad.h>Dotan Barak2007-08-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ib_mad.h uses struct list_head, so while linux/list.h seems to be pulled in indirectly by one of the headers it includes, the right thing is to include linux/list.h directly. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | | | | Merge branch 'master' of ↵Linus Torvalds2007-08-186-4/+27
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [MATH-EMU]: Fix underflow exception reporting. [SPARC64]: Create a HWCAP_SPARC_N2 and report it to userspace on Niagara-2. [SPARC64]: SMP trampoline needs to avoid %tick_cmpr on sun4v too. [SPARC64]: Do not touch %tick_cmpr on sun4v cpus. [SPARC64]: Niagara-2 optimized copies. [SPARC64]: Allow userspace to get at the machine description. [SPARC32]: Remove superfluous 'kernel_end' alignment on sun4c. [SPARC32]: Fix bogus ramdisk image location check. [SPARC32]: Remove iommu from struct sbus_bus and use archdata like sparc64.
| * | | | | [MATH-EMU]: Fix underflow exception reporting.David S. Miller2007-08-164-1/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The underflow exception cases were wrong. This is one weird area of ieee1754 handling in that the underflow behavior changes based upon whether underflow is enabled in the trap enable mask of the FPU control register. As a specific case the Sparc V9 manual gives us the following description: -------------------- If UFM = 0: Underflow occurs if a nonzero result is tiny and a loss of accuracy occurs. Tininess may be detected before or after rounding. Loss of accuracy may be either a denormalization loss or an inexact result. If UFM = 1: Underflow occurs if a nonzero result is tiny. Tininess may be detected before or after rounding. -------------------- What this amounts to in the packing case is if we go subnormal, we set underflow if any of the following are true: 1) rounding sets inexact 2) we ended up rounding back up to normal (this is the case where we set the exponent to 1 and set the fraction to zero), this should set inexact too 3) underflow is set in FPU control register trap-enable mask The initially discovered example was "DBL_MIN / 16.0" which incorrectly generated an underflow. It should not, unless underflow is set in the trap-enable mask of the FPU csr. Another example, "0x0.0000000000001p-1022 / 16.0", should signal both inexact and underflow. The cpu implementations and ieee1754 literature is very clear about this. This is case #2 above. However, if underflow is set in the trap enable mask, only underflow should be set and reported as a trap. That is handled properly by the prioritization logic in arch/sparc{,64}/math-emu/math.c:record_exception(). Based upon a report and test case from Jakub Jelinek. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | [SPARC64]: Create a HWCAP_SPARC_N2 and report it to userspace on Niagara-2.David S. Miller2007-08-161-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | [SPARC32]: Remove iommu from struct sbus_bus and use archdata like sparc64.Robert Reif2007-08-101-1/+0
| | |_|_|/ | |/| | | | | | | | | | | | | | | | | | Signed-off-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | [AVR32] Define mmiowb()Haavard Skinnemoen2007-08-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add empty definition of mmiowb() since some drivers need it. Uncached writes are strongly ordered on AVR32. They may be delayed if the dcache is busy doing a writeback, but AFAICT that's not what this macro is supposed to deal with, at least on UP systems. We might have to revisit this definition when a SMP-capable AVR32 CPU comes along, depending on how the busses and cache coherency stuff end up being implemented. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | | | | [AVR32] Fix bogus pte_page() definitionHaavard Skinnemoen2007-08-151-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current definition of pte_page() masks out valid bits from the physical address, causing vmalloc_to_page() to misbehave. This may lead to everything from mmap() silently accessing the wrong data to "invalid pte" errors dumped by the kernel. Also remove the now-unused definition of PTE_PHYS_MASK. Thanks to Matteo Vit for discovering this bug. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | | | | [AVR32] Simplify pte_alloc_one{,_kernel}Haavard Skinnemoen2007-08-151-20/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's really no need to retry an allocation with __GFP_REPEAT set. Also, use get_zeroed_page() and __GFP_ZERO to eliminate the extra call to clear_page() afterwards. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | | | | include/asm-avr32/pgalloc.h: kmalloc + memset conversion to kcallocMariusz Kozlowski2007-08-151-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | | | | [NET]: Share correct feature code between bridging and bondingHerbert Xu2007-08-131-0/+2
| |_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=8797 shows that the bonding driver may produce bogus combinations of the checksum flags and SG/TSO. For example, if you bond devices with NETIF_F_HW_CSUM and NETIF_F_IP_CSUM you'll end up with a bonding device that has neither flag set. If both have TSO then this produces an illegal combination. The bridge device on the other hand has the correct code to deal with this. In fact, the same code can be used for both. So this patch moves that logic into net/core/dev.c and uses it for both bonding and bridging. In the process I've made small adjustments such as only setting GSO_ROBUST if at least one constituent device supports it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | sched: make global code staticAdrian Bunk2007-08-121-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes the following needlessly global code static: - arch_reinit_sched_domains() - struct attr_sched_mc_power_savings - struct attr_sched_smt_power_savings Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | Pull processor into release branchLen Brown2007-08-121-1/+1
|\ \ \ \
| * | | | acpi-cpufreq: Fix some x86/x86-64 acpi-cpufreq driver issuesFenghua Yu2007-08-071-1/+1
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch addresses some issues in x86/x86-64 acpi-cpufreq driver: 1. Current memory allocation for acpi_perf_data is actually open-coded alloc_percpu(). The patch defines and handles acpi_perf_data as percpu data. The code will be cleaner and easier to be maintained with this change. 2. Won't load driver in acpi_cpufreq_early_init() failure case. 3. Add __init for acpi_cpufreq_early_init(). Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* | | | Merge branch 'merge' of ↵Linus Torvalds2007-08-112-1/+8
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix size check for hugetlbfs [POWERPC] Fix initialization and usage of dma_mask [POWERPC] Fix more section mismatches in head_64.S [POWERPC] Revert "[POWERPC] Add 'mdio' to bus scan id list for platforms with QE UEC" [POWERPC] PS3: Update ps3_defconfig [POWERPC] PS3: Remove text saying PS3 support is incomplete [POWERPC] PS3: Fix storage probe logic [POWERPC] cell: Move SPU affinity init to spu_management_of_ops [POWERPC] Fix potential duplicate entry in SLB shadow buffer
| * | | | [POWERPC] Fix initialization and usage of dma_maskBenjamin Herrenschmidt2007-08-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | powerpc has a couple of bugs in the usage of dma_masks that tend to break when drivers explicitly try to set a 32-bit mask for example. First, the code that generates the pci devices from the OF device-tree doesn't initialize the mask properly, then our implementation of set_dma_mask() was trying to validate the -previous- mask value, not the one passed in as an argument. This fixes these problems. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | [POWERPC] cell: Move SPU affinity init to spu_management_of_opsAndre Detsch2007-08-101-0/+7
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves affinity initialization code from spu_base.c to a new spu_management_of_ops function (init_affinity), which is empty in the case of PS3. This fixes a linking problem that was happening when compiling for PS3. Also, some small code style changes were made. Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | | | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2007-08-113-2/+5
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: BLOCK: Hide the contents of linux/bio.h if CONFIG_BLOCK=n sysace: HDIO_GETGEO has it's own method for ages drivers/block/cpqarray.c: better error handling and kmalloc + memset conversion to k[cz]alloc drivers/block/cciss.c: kmalloc + memset conversion to kzalloc Clean up duplicate includes in drivers/block/ Fix remap handling by blktrace [PATCH] remove mm/filemap.c:file_send_actor()
| * | | | BLOCK: Hide the contents of linux/bio.h if CONFIG_BLOCK=nDavid Howells2007-08-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hide the contents of linux/bio.h if CONFIG_BLOCK=n as there shouldn't be compiled code that uses it. Signed-off-by: David Howells <dhowells@redhat.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | Fix remap handling by blktraceAlan D. Brunelle2007-08-111-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch provides more information concerning REMAP operations on block IOs. The additional information provides clearer details at the user level, and supports post-processing analysis in btt. o Adds in partition remaps on the same device. o Fixed up the remap information in DM to be in the right order o Sent up mapped-from and mapped-to device information Signed-off-by: Alan D. Brunelle <alan.brunelle@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | [PATCH] remove mm/filemap.c:file_send_actor()Adrian Bunk2007-08-111-1/+0
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the no longer used file_send_actor(). Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | | | i386: Use global flag to disable broken local apic timer on AMD CPUs.Andi Kleen2007-08-112-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Averatec 2370 and some other Turion laptop BIOS seems to program the ENABLE_C1E MSR inconsistently between cores. This confuses the lapic use heuristics because when C1E is enabled anywhere it seems to affect the complete chip. Use a global flag instead of a per cpu flag to handle this. If any CPU has C1E enabled disabled lapic use. Thanks to Cal Peake for debugging. Cc: tglx@linutronix.de Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | i386: Make patching more robust, fix paravirt issueAndi Kleen2007-08-111-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 19d36ccdc34f5ed444f8a6af0cbfdb6790eb1177 "x86: Fix alternatives and kprobes to remap write-protected kernel text" uses code which is being patched for patching. In particular, paravirt_ops does patching in two stages: first it calls paravirt_ops.patch, then it fills any remaining instructions with nop_out(). nop_out calls text_poke() which calls lookup_address() which calls pgd_val() (aka paravirt_ops.pgd_val): that call site is one of the places we patch. If we always do patching as one single call to text_poke(), we only need make sure we're not patching the memcpy in text_poke itself. This means the prototype to paravirt_ops.patch needs to change, to marshal the new code into a buffer rather than patching in place as it does now. It also means all patching goes through text_poke(), which is known to be safe (apply_alternatives is also changed to make a single patch). AK: fix compilation on x86-64 (bad rusty!) AK: fix boot on x86-64 (sigh) AK: merged with other patches Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | x86_64: Don't mark __exitcall as __coldAndi Kleen2007-08-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gcc currently doesn't support attributes on types, so we can't use it function pointers. This avoids some warnings on a gcc 4.3 build. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | changing include/asm-generic/pgtable.h for non-mmuGreg Ungerer2007-08-111-35/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are some parts of include/asm-generic/pgtable.h that are relevant to the non-mmu architectures. To make it easier to include this from them I would like to ifdef the relevant parts. Without this there is a handful of functions that are referenced in here that are not defined on many non-mmu architectures. They could be defined out of course, as an alternative approach. Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | finish i386 and x86-64 sysdata conversionMuli Ben-Yehuda2007-08-112-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch finishes the i386 and x86-64 ->sysdata conversion and hopefully also fixes Riku's and Andy's observed bugs. It is based on Yinghai Lu's and Andy Whitcroft's patches (thanks!) with some changes: - introduce pci_scan_bus_with_sysdata() and use it instead of pci_scan_bus() where appropriate. pci_scan_bus_with_sysdata() will allocate the sysdata structure and then call pci_scan_bus(). - always allocate pci_sysdata dynamically. The whole point of this sysdata work is to make it easy to do root-bus specific things (e.g., support PCI domains and IOMMU's). I dislike using a default struct pci_sysdata in some places and a dynamically allocated pci_sysdata elsewhere - the potential for someone indavertantly changing the default structure is too high. - this patch only makes the minimal changes necessary, i.e., the NUMA node is always initialized to -1. Patches to do the right thing with regards to the NUMA node can build on top of this (either add a 'node' parameter to pci_scan_bus_with_sysdata() or just update the node when it becomes known). The patch was compile tested with various configurations (e.g., NUMAQ, VISWS) and run-time tested on i386 and x86-64. Unfortunately none of my machines exhibited the bugs so caveat emptor. Andy, could you please see if this fixes the NUMA issues you've seen? Riku, does this fix "pci=noacpi" on your laptop? Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andi Kleen <ak@suse.de> Cc: Chuck Ebbert <cebbert@redhat.com> Cc: <riku.seppala@kymp.net> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | timer: remove clockevents_unregister_notifierMiao Xie2007-08-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I find a function(clockevents_unregister_notifier) which is not called by anything in tree. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | RCU: Remove prototype for nonexistent function synchronize_idle()Josh Triplett2007-08-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | synchronize_idle() sounds like an interesting function, but we don't actually have it, so don't prototype it. Introduced in commit 9b06e818985d139fd9e82c28297f7744e1b484e1, in 2005. Signed-off-by: Josh Triplett <josh@kernel.org> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | hex_dump: add missing "const" qualifiersAlan Stern2007-08-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add missing "const" qualifiers to the print_hex_dump_bytes() library routines. (akpm: rumoured to fix some compile warning somewhere) Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | fix serial buffer memory leakAlan Cox2007-08-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch c5c34d4862e18ef07c1276d233507f540fb5a532 (tty: flush flip buffer on ldisc input queue flush) introduces a race condition which can lead to memory leaks. The problem can be triggered when tcflush() is called when data are being pushed to the line discipline driver by flush_to_ldisc(). flush_to_ldisc() releases tty->buf.lock when calling the line discipline receive_buf function. At that poing tty_buffer_flush() kicks in and sets both tty->buf.head and tty->buf.tail to NULL. When flush_to_ldisc() finishes, it restores tty->buf.head but doesn't touch tty->buf.tail. This corrups the buffer queue, and the next call to tty_buffer_request_room() will allocate a new buffer and overwrite tty->buf.head. The previous buffer is then lost forever without being released. (Thanks to Laurent for the above text, for finding, disgnosing and reporting the bug) - Use tty->flags bits for the flush status. - Wait for the flag to clear again before returning - Fix the doc error noted - Fix flush of empty queue leaving stale flushpending [akpm@linux-foundation.org: cleanup] Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Paul Fulghum <paulkf@microgate.com> Cc: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Remove unused struct proc_dir_entry::setAlexey Dobriyan2007-08-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After /proc/sys rewrite it was left unused. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | FRV: connect up fallocateDavid Howells2007-08-111-1/+2
|/ / / | | | | | | | | | | | | | | | | | | | | | Connect up the fallocate() system call. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Fix Alpha O_CLOEXEC definitionRichard Henderson2007-08-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | The default definition in asm-generic conflicts with Alpha's O_DIRECT, so, like several other arches, it needs to be redefined. Signed-off-by: Richard Hendersion <rth@twiddle.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds2007-08-091-1/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.linux-nfs.org/pub/linux/nfs-2.6: SUNRPC: Replace flush_workqueue() with cancel_work_sync() and friends NFS: Replace flush_scheduled_work with cancel_work_sync() and friends SUNRPC: Don't call gss_delete_sec_context() from an rcu context NFSv4: Don't call put_rpccred() from an rcu callback NFS: Fix NFSv4 open stateid regressions NFSv4: Fix a locking regression in nfs4_set_mode_locked() NFS: Fix put_nfs_open_context SUNRPC: Fix a race in rpciod_down()
| * | | NFS: Fix put_nfs_open_contextTrond Myklebust2007-08-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to grab the inode->i_lock atomically with the last reference put in order to remove the open context that is being freed from the nfsi->open_files list. Fix by converting the kref to a standard atomic counter and then using atomic_dec_and_lock()... Thanks to Arnd Bergmann for pointing out the problem. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | | hexdump: use const notationArtem Bityutskiy2007-08-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trivial fix: mark the buffer to hexdump as const so callers could avoid casting their const buffers when calling print_hex_dump(). The patch is really trivial and I suggest to consider it as a fix (it fixes GCC warnings) and push it to current tree. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge branch 'master' of ↵Linus Torvalds2007-08-091-0/+2
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [TCP]: H-TCP maxRTT estimation at startup [NETFILTER]: nf_nat: add symbolic dependency on IPv4 conntrack [NETFILTER]: ctnetlink: return EEXIST instead of EINVAL for existing nat'ed conntracks [NETFILTER]: ipt_recent: avoid a possible NULL pointer deref in recent_seq_open() [NET] net/core/utils: fix sparse warning [NetLabel]: add missing rcu_dereference() calls in the LSM domain mapping hash table [PATCH] mac80211: don't allow scanning in monitor mode [PATCH] mac80211: Fix sparse error for sta_last_seq_ctrl_read [PATCH] mac80211: use do { } while (0) for multi-line macros [PATCH] mac80211: missing dev_put in ieee80211_master_start_xmit
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