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2009-10-03Merge branch 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_devLinus Torvalds7-13/+34
* 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev: m32r: Fix IPI function calls for SMP m32r: Fix set_memory() for DISCONTIGMEM m32r: add rtc_lock variable m32r: define ioread* and iowrite* macros m32r: export delay loop symbols m32r: fix tme_handler
2009-10-04m32r: Fix IPI function calls for SMPToshihiro HANAWA1-2/+2
This patch fixes the m32r SMP kernel after 2.6.27. A part of the following patch breaks m32r SMP operation. > m32r: convert to generic helpers for IPI function calls > commit 7b7426c8a615cf61df9a77b9df7d5b75d91e3fa0 In the above patch, a CALL_FUNC_SINGLE_IPI was newly introduced, but the its IPI vector number was wrong in the patch code. The m32r SMP kernel hanged-up during boot operation, because the CPU_BOOT_IPI was called instead of CALL_FUNC_SINGLE_IPI (CPU_BOOT_IPI had no side effect at that time because the 2nd core had already been started up), as a result, csd_unlock() was not called, then a dead lock occurred in csd_lock_wait() after the detection of Compact Flash memory as IDE generic disk. Signed-off-by: Toshihiro HANAWA <hanawa@ccs.tsukuba.ac.jp> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2009-10-04m32r: Fix set_memory() for DISCONTIGMEMHirokazu Takata1-1/+4
In case CONFIG_DISCONTIGMEM is set, the memory size of system was always determined by CONFIG_MEMORY_SIZE and was not changeable. This patch fixes set_memory() of arch/m32r/mm/discontig.c so that we can specify memory size by the "mem=<size>" kernel parameter. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2009-10-04m32r: add rtc_lock variableHirokazu Takata1-0/+9
Add a spinlock variable "rtc_lock". This is taken from arch/arm/kernel/time.c. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2009-10-04m32r: define ioread* and iowrite* macrosHirokazu Takata1-0/+7
Define ioread* and iowrite* macros to fix the following build errors: CC [M] drivers/uio/uio_smx.o drivers/uio/uio_smx.c: In function 'smx_handler': drivers/uio/uio_smx.c:31: error: implicit declaration of function 'ioread32' drivers/uio/uio_smx.c:37: error: implicit declaration of function 'iowrite32' Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2009-10-04m32r: export delay loop symbolsHirokazu Takata2-6/+4
- Move EXPORT_SYMBOL lines of delay loop functions from arch/m32r/kernel/m32r_ksyms.c to arch/m32r/lib/delay.c. - Export __ndelay. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2009-10-04m32r: fix tme_handlerHirokazu Takata1-4/+8
Fix pmd_bad check code of tme_handler (TLB Miss Exception handler). The correct _KERNPG_TABLE value is not 0x263(=611) but 0x163. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2009-10-02Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds56-253/+721
* master.kernel.org:/home/rmk/linux-2.6-arm: (25 commits) ARM: 5728/1: Proper prefetch abort handling on ARMv6 and ARMv7 ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() ARM: 5740/1: fix valid_phys_addr_range() range check ARM: 5739/1: ARM: allow empty ATAG_CORE ARM: 5735/1: sa1111: CodingStyle cleanups ARM: 5738/1: Correct TCM documentation ARM: 5734/1: arm: fix compilation of entry-common.S for older CPUs ARM: 5733/1: fix bcmring compile error ARM: 5732/1: remove redundant include file ARM: 5731/2: Fix U300 generic GPIO, remove ifdefs from MMCI v3 ARM: Ensure do_cache_op takes mmap_sem ARM: Fix __cpuexit section mismatch warnings ARM: Don't allow highmem on SMP platforms without h/w TLB ops broadcast ARM: includecheck fix: mach-davinci, board-dm365-evm.c ARM: Remove unused CONFIG SA1100_H3XXX ARM: Fix warning: unused variable 'highmem' ARM: Fix warning: #warning syscall migrate_pages not implemented ARM: Fix SA11x0 clocksource warning ARM: Fix SA1100 Neponset serial section mismatch ARM: Fix SA1100 Assabet/Neponset PCMCIA section mismatch warnings ...
2009-10-02ARM: 5728/1: Proper prefetch abort handling on ARMv6 and ARMv7Kirill A. Shutemov1-1/+50
Currently, on ARMv6 and ARMv7, if an application tries to execute code (or garbage) on non-executable page it hangs. It caused by incorrect prefetch abort handling. Now every prefetch abort processes as a translation fault. To fix this we have to analyze instruction fault status register to figure out reason why we've got the abort and process it accordingly. To make IFSR different from DFSR we set bit 31 which is reserved in both IFSR and DFSR. This patch also tries to protect from future hangs on unexpected exceptions. An application will be killed if unexpected exception type was received. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-10-02ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()Kirill A. Shutemov33-78/+144
Instruction fault status register, IFSR, was introduced on ARMv6 to provide status information about the last insturction fault. It needed for proper prefetch abort handling. Now we have three prefetch abort model: * legacy - for CPUs before ARMv6. They doesn't provide neither IFSR nor IFAR. We simulate IFSR with section translation fault status for them to generalize code; * ARMv6 - provides IFSR, but not IFAR; * ARMv7 - provides both IFSR and IFAR. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-10-02ARM: 5740/1: fix valid_phys_addr_range() range checkGreg Ungerer1-1/+1
Commit 1522ac3ec95ff0230e7aa516f86b674fdf72866c ("Fix virtual to physical translation macro corner cases") breaks the end of memory check in valid_phys_addr_range(). The modified expression results in the apparent /dev/mem size being 2 bytes smaller than what it actually is. This patch reworks the expression to correctly check the address, while maintaining use of a valid address to __pa(). Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-10-02ARM: 5739/1: ARM: allow empty ATAG_COREDavid Brown1-1/+3
From: David Brown <davidb@quicinc.com> The ATAG_CORE is allowed to be empty. Although this is handled by parse_tag_core(), __vet_atags during startup rejects this tag unless it contains data. Allow the initial tag to be either the full size, or empty. Signed-off-by: David Brown <davidb@quicinc.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-10-02ARM: 5735/1: sa1111: CodingStyle cleanupsHartley Sweeten1-13/+12
EXPORT_* macros should follow immediately after the closing function brace line. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-10-02Merge branch 'fixes' of ↵Russell King6-131/+433
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/xscaleiop Conflicts: MAINTAINERS
2009-10-01s3cmci: add better support for no card detect or write protect availableBen Dooks1-0/+2
Add better support for omitting either the card detect or the write protect GPIOs if the board does not support it. Add the fields no_wprotect and no_detect to the platform data which when set indicate the absence of the respective GPIOs. Note, this also fixes a minor bug where it tries to free IRQ0 if there is no detect gpio available. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-01s3cmci: Kconfig selection for PIO/DMA/BothBen Dooks1-0/+1
Add a selection for the data transfer mode of the s3cmci driver, allowing for either a configuration or rumtime selection of the use of the DMA or PIO transfer code. The PIO only mode is 476 bytes smaller than the driver with both methods compiled in. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-01x86: fix csum_ipv6_magic asm memory clobberSamuel Thibault1-1/+2
Just like ip_fast_csum, the assembly snippet in csum_ipv6_magic needs a memory clobber, as it is only passed the address of the buffer, not a memory reference to the buffer itself. This caused failures in Hurd's pfinetv4 when we tried to compile it with gcc-4.3 (bogus checksums). Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <andi@firstfloor.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-01mn10300: fix kernel build failures when using gcc-4.xMark Salter3-40/+45
Fix some build failures when using gcc-4.x for MN10300. Firstly, __get_user() fails to build because the pointer points to a const and __gu_val ends up being read-only: In file included from include/linux/mempolicy.h:62, from init/main.c:50: include/linux/pagemap.h: In function 'fault_in_pages_readable': include/linux/pagemap.h:394: error: read-only variable '__gu_val' used as 'asm' output include/linux/pagemap.h:394: error: read-only variable '__gu_val' used as 'asm' output include/linux/pagemap.h:394: error: read-only variable '__gu_val' used as 'asm' output include/linux/pagemap.h:400: error: read-only variable '__gu_val' used as 'asm' output include/linux/pagemap.h:400: error: read-only variable '__gu_val' used as 'asm' output include/linux/pagemap.h:400: error: read-only variable '__gu_val' used as 'asm' output make[1]: *** [init/main.o] Error 1 Secondly, gcc-4 doesn't allow casts of lvalues: UPD include/linux/compile.h arch/mn10300/kernel/rtc.c: In function 'calibrate_clock': arch/mn10300/kernel/rtc.c:170: error: lvalue required as left operand of assignment arch/mn10300/kernel/rtc.c:172: error: lvalue required as left operand of assignment make[1]: *** [arch/mn10300/kernel/rtc.o] Error 1 These are seen with gcc 4.2.1. Signed-off-by: Mark Salter <msalter@redhat.com> 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>
2009-10-01revert "m68k: convert to asm-generic/hardirq.h"Andrew Morton1-2/+10
Revert 45d80eea87c9f8292d2d33173d6866c0ec57238a ("m68k: convert to asm-generic/hardirq.h") - it fails to compile due to an inclusion tangle: In file included from include/linux/irq.h:12, from include/asm-generic/hardirq.h:6, from /usr/src/devel/arch/m68k/include/asm/hardirq_mm.h:6, from /usr/src/devel/arch/m68k/include/asm/hardirq.h:4, from include/linux/hardirq.h:10, from /usr/src/devel/arch/m68k/include/asm/system_mm.h:69, from /usr/src/devel/arch/m68k/include/asm/system.h:4, from include/linux/list.h:7, from include/linux/preempt.h:11, from include/linux/spinlock.h:50, from include/linux/seqlock.h:29, from include/linux/time.h:8, from include/linux/timex.h:56, from include/linux/sched.h:56, from arch/m68k/kernel/asm-offsets.c:14: include/linux/smp.h:17: error: field 'list' has incomplete type Cc: Christoph Hellwig <hch@lst.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-01const: constify remaining file_operationsAlexey Dobriyan8-8/+8
[akpm@linux-foundation.org: fix KVM] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-01ARM: 5734/1: arm: fix compilation of entry-common.S for older CPUsDmitry Artamonow1-2/+2
Commit 181f817eaaca4c1f introduced some new code to entry-common.S Sadly, this new code uses 'bx' instruction which is available only on ARMv5 and higher CPUs. This causes following compilation errors when building kernel for StrongARM (ARMv4): arch/arm/kernel/entry-common.S: Assembler messages: arch/arm/kernel/entry-common.S:129: Error: selected processor does not support `bx ip' arch/arm/kernel/entry-common.S:138: Error: selected processor does not support `bx ip' Fix these errors by using 'mov pc' instead of 'bx'. Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-10-01ARM: 5733/1: fix bcmring compile errorLeo Chen1-1/+0
The movement of the MMCI header file made bcmring break. It turns out it was including asm/mmc.h without using it so fixing the problem boils down to removing the offending include. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Scott Branden <sbranden@broadcom.com> Signed-off-by: Leo Hao Chen <leochen@broadcom.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-10-01ARM: 5732/1: remove redundant include fileLeo Chen1-1/+0
Remove duplicated #include('s) in arch/arm/mach-bcmring/core.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Leo Chen <leochen@broadcom.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-10-01ARM: 5731/2: Fix U300 generic GPIO, remove ifdefs from MMCI v3Linus Walleij2-0/+11
The #ifdefs in the MMCI driver were erroneous and just masking a bug in the U300 generic GPIO implementation. This removes the ifdefs and fixes the U300 generic GPIO instead. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-30Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds4-14/+83
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched_clock: Fix atomicity/continuity bug by using cmpxchg64() x86: Provide an alternative() based cmpxchg64()
2009-09-30x86: Provide an alternative() based cmpxchg64()Arjan van de Ven4-14/+83
cmpxchg64() today generates, to quote Linus, "barf bag" code. cmpxchg64() is about to get used in the scheduler to fix a bug there, but it's a prerequisite that cmpxchg64() first be made non-sucking. This patch turns cmpxchg64() into an efficient implementation that uses the alternative() mechanism to just use the raw instruction on all modern systems. Note: the fallback is NOT smp safe, just like the current fallback is not SMP safe. (Interested parties with i486 based SMP systems are welcome to submit fix patches for that.) Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> [ fixed asm constraint bug ] Fixed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20090930170754.0886ff2e@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-30MIPS: Avoid spurious make includecheck messageRalf Baechle1-2/+2
arch/mips/include/asm/unaligned.h: linux/unaligned/generic.h is included more than once. Entirely legitimate but just noise. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: VPE: Get rid of BKL.Ralf Baechle2-42/+50
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: VPE: Fix build after the credential changes a while ago.Ralf Baechle1-10/+23
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: Excite: Get rid of BKL.Ralf Baechle1-2/+0
It's not obvious what good it was supposed to do here anyway. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: Sibyte: Get rid of BKL.Ralf Baechle1-18/+15
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: BCM63xx: Add PCMCIA & Cardbus support.Maxime Bizon4-1/+162
Signed-off-by: Maxime Bizon <mbizon@freebox.fr> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: MSP71xx: request_irq() failure ignored in msp_pcibios_config_access()Roel Kluin1-1/+4
Produce an error if request_irq() fails. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: "Ithamar R. Adema" <ithamar.adema@team-embedded.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: Decrease size of au1xxx_dbdma_pm_regs[][]Roel Kluin1-5/+3
There are 16 individual channels (NUM_DBDMA_CHANS) to save/restore plus the global ddma block config (the +1). The last register in a channel can be skipped since it's read-only (at offset 0x18). Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Manuel Lauss <manuel.lauss@googlemail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: SMP: Inline arch_send_call_function_{single_ipi,ipi_mask}Ralf Baechle2-15/+13
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: SMP: Fix build.Ralf Baechle2-2/+2
commit 48a048fed82a8e5fdd8618574f6d3de1a0d67a50 Author: Rusty Russell <rusty@rustcorp.com.au> Date: Thu Sep 24 09:34:44 2009 -0600 apparently only passed the "looks good" level of QA ;-) Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: MIPSxx SC: Avoid destructive invalidation on partial L2 cachelines.Kevin Cernekee1-0/+5
This extends commit a8ca8b64e3fdfec17679cba0ca5ce6e3ffed092d to cover MIPSxx-style board cache code. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: Sibyte: Fix compilation error.Mark Mason1-1/+1
Build error introduced by d4f587c67fc39e0030ddd718675e252e208da4d7. Signed-off-by: Mark Mason <mmason@upwardaccess.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: BCM1480: Re-apply patch lost due to bad resolution of merge conflict.Ralf Baechle1-4/+0
Patch 14275ccdb1e4b487cca745aba994699c426a31ee and d5dedd4507d307eb3f35f21b6e16f336fdc0d82a are conflicting and the conflict was resolved badly in merge 92241940be501f798cb21db344bbb3d1ec3c4f1c resulting in the BCM1480 changes of 14275ccdb1e4b487cca745aba994699c426a31ee getting lost. Sort out the damage. Reported and initial patch by Mark Mason <mmason@upwardaccess.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: BCM63xx: Add serial driver for bcm63xx integrated UART.Maxime Bizon4-1/+51
Signed-off-by: Maxime Bizon <mbizon@freebox.fr> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: Loongson2: Fix typo "enalbe" -> "enable"Uwe Kleine-König1-7/+7
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Yanhua <yanh@lemote.com> Cc: Robert Richter <robert.richter@amd.com> Acked-by: Wu Zhangjin <wuzj@lemote.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: SMTC: Remove duplicate structure field initializationJulia Lawall1-3/+2
The definition of the irq_ipi structure has two initializations of the flags field. This combines them. [Ralf: The issue was originally introduced by commit be4894196d79455f420dd7bb78be7dc73bec115c (linux-mips.org) rsp. 033890b084adfa367c544864451d7730552ce8bf (kernel.org). The original intention of the code was to initialize .flags with both flags ored together. The broken C code as actually implemented will be compiled by an equally broken gcc to use only the last initialization, that is IRQF_PERCPU which means this turned into an SMTC bug for 2.6.23 and newer.] The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ identifier I, s, fld; position p0,p; expression E; @@ struct I s =@p0 { ... .fld@p = E, ...}; @s@ identifier I, s, r.fld; position r.p0,p; expression E; @@ struct I s =@p0 { ... .fld@p = E, ...}; @script:python@ p0 << r.p0; fld << r.fld; ps << s.p; pr << r.p; @@ if int(ps[0].line)!=int(pr[0].line) or int(ps[0].column)!=int(pr[0].column): cocci.print_main(fld,p0) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: Remove duplicated #includeHuang Weiyi1-1/+0
Remove duplicated #include in arch/mips/kernel/smp.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: BCM63xx: Remove duplicated #includeHuang Weiyi1-1/+0
Remove duplicated #include in arch/mips/bcm63xx/boards/board_bcm963xx.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30Merge branch 'for-linus' of ↵Linus Torvalds2-9/+47
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: make allocation failures more verbose percpu: make pcpu_setup_first_chunk() failures more verbose percpu: make embedding first chunk allocator check vmalloc space size sparc64: implement page mapping percpu first chunk allocator percpu: make pcpu_build_alloc_info() clear static buffers percpu: fix unit_map[] verification in pcpu_setup_first_chunk()
2009-09-30Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds19-69/+145
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: omap: Fix wrong condition check in while loop for mailbox and iommu2 omap: rng: Use resource_size instead of manual calculation omap: Fix MMC gpio_wp for BeagleBoard C2 and above omap: Fix matrix_keymap_data usage omap: Fix a OMAP_MPUIO_VBASE typo for 850 omap: Fix wrong jtag_id for 850 omap: iovmm: Fix compiler warning omap: mailbox: Flush posted write when acking mailbox irq omap: mailbox: Execute softreset at startup omap: Add missing mux pin for EHCI phy reset line omap: Fix 44xx compile omap: Fix mcspi compile for 2420 omap: Fix compile for arch/arm/mach-omap2
2009-09-30Revert "x86, mce: do not compile mcelog message on AMD"Linus Torvalds1-4/+1
This reverts commit 22223c9b417be5fd0ab2cf9ad17eb7bd1e19f7b9, as requested by Andi Kleen: "Obviously kernels compiled with AMD support can still run on non AMD systems, so messages like this can never be removed at compile time." Requsted-by: Andi Kleen <andi@firstfloor.org> Cc: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-29sparc64: implement page mapping percpu first chunk allocatorTejun Heo2-9/+47
Implement page mapping percpu first chunk allocator as a fallback to the embedding allocator. The next patch will make the embedding allocator check distances between units to determine whether it fits within the vmalloc area so that this fallback can be used on such cases. sparc64 currently has relatively small vmalloc area which makes it impossible to create any dynamic chunks on certain configurations leading to percpu allocation failures. This and the next patch should allow those configurations to keep working until proper solution is found. While at it, mark pcpu_cpu_distance() with __init. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net>
2009-09-28ARM: Ensure do_cache_op takes mmap_semRussell King1-1/+4
do_cache_op() uses find_vma() to validate its arguments without holding any locking. This means that the VMA could vanish beneath us. Fix this by taking a read lock on mmap_sem. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-28ARM: Fix __cpuexit section mismatch warningsRussell King2-4/+6
Fix: WARNING: vmlinux.o(.text+0x247c): Section mismatch in reference from the function cpu_idle() to the function .cpuexit.text:cpu_die() The function cpu_idle() references a function in an exit section. Often the function cpu_die() has valid usage outside the exit section and the fix is to remove the __cpuexit annotation of cpu_die. WARNING: vmlinux.o(.cpuexit.text+0x3c): Section mismatch in reference from the function cpu_die() to the function .cpuinit.text:secondary_start_kernel() The function __cpuexit cpu_die() references a function __cpuinit secondary_start_kernel(). This is often seen when error handling in the exit function uses functionality in the init path. The fix is often to remove the __cpuinit annotation of secondary_start_kernel() so it may be used outside an init section. Sam says: > The annotation of cpu_die() is wrong. > To be annotated __cpuexit the function shall: > - be used in exit context and only in exit context with HOTPLUG_CPU=n > - be used outside exit context with HOTPLUG_CPU=y So, this also means __cpu_disable(), __cpu_die() and twd_timer_stop() are also wrong. However, removing __cpuexit from cpu_die() creates: WARNING: vmlinux.o(.text+0x6834): Section mismatch in reference from the function cpu_die() to the function .cpuinit.text:secondary_start_kernel() The function cpu_die() references the function __cpuinit secondary_start_kernel(). This is often because cpu_die lacks a __cpuinit annotation or the annotation of secondary_start_kernel is wrong. so fix this using __ref. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Sam Ravnborg <sam@ravnborg.org>
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