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* During VM oom condition, kill all threads in process groupWill Schmidt2007-10-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have had complaints where a threaded application is left in a bad state after one of it's threads is killed when we hit a VM: out_of_memory condition. Killing just one of the process threads can leave the application in a bad state, whereas killing the entire process group would allow for the application to restart, or be otherwise handled, and makes it very obvious that something has gone wrong. This change allows the entire process group to be taken down, rather than just the one thread. Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ian Molton <spyro@f2s.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Richard Curnow <rc@rc0.org.uk> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Consolidate PTRACE_DETACHAlexey Dobriyan2007-10-161-4/+0
| | | | | | | | | | | Identical handlers of PTRACE_DETACH go into ptrace_request(). Not touching compat code. Not touching archs that don't call ptrace_request. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh64: mach-cayman: Build fixes.Paul Mundt2007-10-092-6/+207
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Symbol export fixups.Paul Mundt2007-10-091-5/+1
| | | | | | | | | Kill off the __div_table reference, modern compilers don't have it, and old compilers can't build the sh64 kernel anyways. __copy_user also needs to be exported to satisfy module builds. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: linker script tidying and alignment fixups.Paul Mundt2007-10-091-51/+9
| | | | | | | Use more of the generic section helpers, and get the alignment for some of the sections reduced. Follows the sh change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Set KBUILD_IMAGE to make the rpm target happy.Paul Mundt2007-10-091-2/+3
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Kill off obsolete linux/blk.h reference.Paul Mundt2007-10-091-4/+0
| | | | | | | This is just dead code, kill it off.. Reported-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: cleanup struct irqaction initializers.Thomas Gleixner2007-10-031-2/+12
| | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Kill off dead gdb stub symbol.Paul Mundt2007-10-011-3/+0
| | | | | | | There's no supported GDB stub in the kernel, kill off the dead config option for it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: alphanumeric display only on Cayman.Paul Mundt2007-10-011-0/+1
| | | | | | | Dependency cleanup. The non-cayman boards don't have the mach callbacks for this and build error badness ensues. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Add defconfigs for mach-sim and mach-harp.Paul Mundt2007-10-012-0/+1322
| | | | | | defconfigs for the simulator and ST50-HARP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: update cayman defconfig.Paul Mundt2007-10-011-38/+10
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Tidy up Kconfig dependencies.Paul Mundt2007-10-011-26/+19
| | | | | | | | Now that the ROM-RAM and generic boards are killed off, refactor the dependencies accordingly. Those were the only special cases, so all of the Kconfig dependency hell gets much cleaner as a result. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Move consistent DMA routines to arch/sh64/mm/.Paul Mundt2007-10-013-3/+3
| | | | | | | | | | | | The consistent DMA stuff was evolved from the old PCI DMA mapping functions. As this has been overhauled, it's something that is used by the generic DMA mapping code, and thus, has no intrinsic PCI dependence. Move the routines somewhere more sensible (same place as sh), and fix up the build for CONFIG_PCI=n in the process. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Some symbol exports and build fixes.Paul Mundt2007-10-016-28/+23
| | | | | | | | This fixes up misc build issues that were hit on the non-cayman boards. Additionally, quite a few symbols needed to be exported to fix the module build. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: mach-sim: Build fixes.Paul Mundt2007-10-012-58/+8
| | | | | | Follow the mach-harp changes to get the simulator support building. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: mach-harp: Build fixes.Paul Mundt2007-10-012-30/+8
| | | | | | Get the ST50-HARP building again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Kill off duplicate frame pointer option.Paul Mundt2007-10-011-9/+0
| | | | | | | This is already enabled through lib/Kconfig.debug, kill off the architecture specific one. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Kill off dead ROM-RAM and generic boards.Paul Mundt2007-10-014-162/+0
| | | | | | | | The generic board stubs were never added, and the ROM-RAM boards never made it in to the wild. Neither one has any users, and both are utterly broken in-tree (likely since 2.4). Kill them both off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Tidy up includes for Cayman board.Paul Mundt2007-10-011-9/+0
| | | | | | | There were quite a few left over includes from code that was removed long ago, rip out the stuff we no longer need. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Move *_p() I/O routine variants to io.h.Paul Mundt2007-10-011-20/+9
| | | | | | | | | | | | | | | | | | These were implemented using an ugly macro for just simple wrapping, so we just make the wrapping explicit and move it to io.h instead. Also fixes up some modules: CC [M] drivers/net/8390.o In file included from drivers/net/8390.c:6: drivers/net/lib8390.c: In function 'ei_start_xmit': drivers/net/lib8390.c:329: error: implicit declaration of function 'outb_p' drivers/net/lib8390.c: In function '__ei_interrupt': drivers/net/lib8390.c:457: error: implicit declaration of function 'inb_p' make[2]: *** [drivers/net/8390.o] Error 1 make[1]: *** [drivers/net] Error 2 Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: arch/sh64/kernel/setup.c: duplicate include removal.Michal Piotrowski2007-08-121-4/+0
| | | | | | | There is no need to include linux/console.h twice. Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: arch/sh64/kernel/signal.c: duplicate include removalJesper Juhl2007-08-121-1/+0
| | | | | | | | | Remove the duplicate inclusion of linux/personality.h from arch/sh64/kernel/signal.c Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Kill off virt_to_bus()/bus_to_virt().Paul Mundt2007-07-312-2/+5
| | | | | | Follows the SH change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Fix irq_intc build failure.Paul Mundt2007-07-311-0/+1
| | | | | | | | | | | Needs interrupt.h: CC arch/sh64/kernel/irq_intc.o arch/sh64/kernel/irq_intc.c: In function 'make_intc_irq': arch/sh64/kernel/irq_intc.c:179: error: implicit declaration of function 'disable_irq_nosync' make[1]: *** [arch/sh64/kernel/irq_intc.o] Error 1 Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Fix fs.h removal from mm.h regressions.Paul Mundt2007-07-314-1/+4
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Flag sh64_get_page() as __init_refok.Paul Mundt2007-07-201-1/+1
| | | | | | | | | sh64_get_page() wraps in to regular allocators as well as the bootmem allocator for fetching pages, it carefully checks to see which one it can use depending on the system state, so the access is safe. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Move entry point code to .text.head.Paul Mundt2007-07-202-1/+2
| | | | | | Follow the sh and m68k changes to silence the modpost warnings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Fix up PCI section mismatch warnings.Paul Mundt2007-07-201-2/+2
| | | | | | pcibios_fixup_bus() and pcibios_setup() should be __devinit. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Update cayman defconfig.Paul Mundt2007-07-201-125/+33
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Wire up fallocate() syscall.Paul Mundt2007-07-201-0/+1
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* define new percpu interface for shared dataFenghua Yu2007-07-191-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | per cpu data section contains two types of data. One set which is exclusively accessed by the local cpu and the other set which is per cpu, but also shared by remote cpus. In the current kernel, these two sets are not clearely separated out. This can potentially cause the same data cacheline shared between the two sets of data, which will result in unnecessary bouncing of the cacheline between cpus. One way to fix the problem is to cacheline align the remotely accessed per cpu data, both at the beginning and at the end. Because of the padding at both ends, this will likely cause some memory wastage and also the interface to achieve this is not clean. This patch: Moves the remotely accessed per cpu data (which is currently marked as ____cacheline_aligned_in_smp) into a different section, where all the data elements are cacheline aligned. And as such, this differentiates the local only data and remotely accessed data cleanly. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Christoph Lameter <clameter@sgi.com> Cc: <linux-arch@vger.kernel.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: fault feedback #2Nick Piggin2007-07-191-11/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch completes Linus's wish that the fault return codes be made into bit flags, which I agree makes everything nicer. This requires requires all handle_mm_fault callers to be modified (possibly the modifications should go further and do things like fault accounting in handle_mm_fault -- however that would be for another patch). [akpm@linux-foundation.org: fix alpha build] [akpm@linux-foundation.org: fix s390 build] [akpm@linux-foundation.org: fix sparc build] [akpm@linux-foundation.org: fix sparc64 build] [akpm@linux-foundation.org: fix ia64 build] Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ian Molton <spyro@f2s.com> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Matthew Wilcox <willy@debian.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Richard Curnow <rc@rc0.org.uk> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: Chris Zankel <chris@zankel.net> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [ Still apparently needs some ARM and PPC loving - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* missing exports of csum_...Al Viro2007-07-171-0/+1
| | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PTRACE_POKEDATA consolidationAlexey Dobriyan2007-07-171-4/+1
| | | | | | | | | | | | | | Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata() function. AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless return EPERM. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PTRACE_PEEKDATA consolidationAlexey Dobriyan2007-07-171-10/+2
| | | | | | | | | | | Identical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata() function. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh64: Handle -ERESTART_RESTARTBLOCK for restartable syscalls.Paul Mundt2007-06-191-0/+1
| | | | | | | | The current implementation only handles -ERESTARTNOHAND, whereas we also need to handle -ERESTART_RESTARTBLOCK in the handle_signal() case for restartable system calls. Follows the sh change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* potential parse error in ifdef part 3Yoann Padioleau2007-06-081-4/+4
| | | | | | | | | | | | | Fix various bits of obviously-busted code which we're not happening to compile, due to ifdefs. Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Andi Kleen <ak@suse.de> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* all-archs: consolidate .data section definition in asm-genericSam Ravnborg2007-05-191-1/+1
| | | | | | | With this consolidation we can now modify the .data section definition in one spot for all archs. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* all-archs: consolidate .text section definition in asm-genericSam Ravnborg2007-05-191-1/+1
| | | | | | Move definition of .text section to asm-generic. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* sh64: Add .gitignore entry for syscalltab.Paul Mundt2007-05-141-0/+1
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: generic quicklist support.Paul Mundt2007-05-142-1/+4
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Update cayman defconfig.Paul Mundt2007-05-141-78/+121
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: ppoll/pselect6() and restartable syscalls.Paul Mundt2007-05-142-6/+31
| | | | | | | | This patch was hanging around for some time while we were waiting for the compiler situation to improve.. now that all is well again, finally merge it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Fixups for the irq_regs changes.Paul Mundt2007-05-144-12/+17
| | | | | | | | A few interrupt handlers were never updated, fix them up. We were missing the irq_regs conversion also, so do that at the same time. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: Wire up many new syscalls.Paul Mundt2007-05-141-3/+33
| | | | | | | | This has suffered a bit of bitrot, so we're a bit behind on the syscalls. There were a few that were wrapped incorrectly as well, caught by the syscall checker. Fix them all up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* spelling fixes: arch/sh64/Simon Arlott2007-05-146-7/+7
| | | | | | | Spelling fixes in arch/sh64/. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: ROUND_UP macro cleanup in arch/sh64/kernel/pci_sh5.cMilind Arun Choudhary2007-05-141-8/+4
| | | | | | | | ROUND_UP macro cleanup, use ALIGN where ever appropriate. Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Simplify kallsyms_lookup()Alexey Dobriyan2007-05-081-3/+3
| | | | | | | | | | | | | | Several kallsyms_lookup() pass dummy arguments but only need, say, module's name. Make kallsyms_lookup() accept NULLs where possible. Also, makes picture clearer about what interfaces are needed for all symbol resolving business. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Cc: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* header cleaning: don't include smp_lock.h when not usedRandy Dunlap2007-05-089-9/+0
| | | | | | | | | | | | Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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