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2006-09-27[PATCH] uml: mark some tt-mode codeJeff Dike3-4/+9
Mark a symbol and file as being tt-mode only. This shrinks the binary slightly when tt mode support is compiled out and makes it easier to identity stuff when tt mode is removed. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] uml: use correct SIGBUS handlerJeff Dike1-8/+9
BB noticed that we had the wrong bus error handler. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] uml: fix gcov supportJeff Dike1-12/+1
Make __bb_init_func weak in order to avoid a link failure with some libcs and/or gccs. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] uml: fix missing x86_64 register definitionsJeff Dike2-4/+41
The UML/x86_64 headers were missing ptrace support for some segment registers. The underlying problem was that the x86_64 kernel uses user_regs_struct rather than the ptrace register definitions in ptrace. This patch switches UML/x86_64 to using user_regs_struct for its definitions of the host's registers. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] uml: get rid of ZONE_DMA useJeff Dike1-1/+2
ZONE_DMA might become dependent on CONFIG_ZONE_DMA, which UML doesn't define (we're still arguing about this) So, let's change ZONE_DMA to ZONE_NORMAL. This is prompted by optional-zone_dma-in-the-vm.patch, but should be harmless on its own. Signed-off-by: Jeff Dike <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] uml: const more dataJeff Dike40-65/+65
Make lots of structures const in order to make it obvious that they need no locking. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] uml: fix proc-vs-interrupt context spinlock deadlockPaolo 'Blaisorblade' Giarrusso1-12/+4
This spinlock can be taken on interrupt too, so spin_lock_irq[save] must be used. However, Documentation/networking/netdevices.txt explains we are called with rtnl_lock() held - so we don't need to care about other concurrent opens. Verified also in LDD3 and by direct checking. Also verified that the network layer (through a state machine) guarantees us that nobody will close the interface while it's being used. Please correct me if I'm wrong. Also, we must check we don't sleep with irqs disabled!!! But anyway, this is not news - we already can't sleep while holding a spinlock. Who says this is guaranted really by the present code? Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Jeff Garzik <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] uml: use -mcmodel=kernel for x86_64Paolo 'Blaisorblade' Giarrusso1-2/+5
We have never used this flag and recently one user experienced a complaining warning about this (there was a symbol in the positive half of the address space IIRC). So fix it. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Jeff Dike <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] AVR32: Use unsigned long flags for saving interrupt stateHaavard Skinnemoen1-2/+4
Signed-off-by: Haavard Skinnemoen <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] Allow an arch to expand node boundariesMel Gorman1-0/+2
Arch-independent zone-sizing determines the size of a node (pgdat->node_spanned_pages) based on the physical memory that was registered by the architecture. However, when CONFIG_MEMORY_HOTPLUG_RESERVE is set, the architecture expects that the spanned_pages will be much larger and that mem_map will be allocated that is used lated on memory hot-add. This patch allows an architecture that sets CONFIG_MEMORY_HOTPLUG_RESERVE to call push_node_boundaries() which will set the node beginning and end to at *least* the requested boundary. Cc: Dave Hansen <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: "Keith Mannthey" <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Yasunori Goto <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] Account for holes that are outside the range of physical memoryMel Gorman1-1/+3
absent_pages_in_range() made the assumption that users of the API would not care about holes beyound the end of physical memory. This was not the case. This patch will account for ranges outside of physical memory as holes correctly. Cc: Dave Hansen <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: "Keith Mannthey" <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Yasunori Goto <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] Account for memmap and optionally the kernel image as holesMel Gorman1-1/+3
The x86_64 code accounted for memmap and some portions of the the DMA zone as holes. This was because those areas would never be reclaimed and accounting for them as memory affects min watermarks. This patch will account for the memmap as a memory hole. Architectures may optionally use set_dma_reserve() if they wish to account for a portion of memory in ZONE_DMA as a hole. Signed-off-by: Mel Gorman <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: "Keith Mannthey" <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Yasunori Goto <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] Have ia64 use add_active_range() and free_area_init_nodesMel Gorman4-87/+39
Size zones and holes in an architecture independent manner for ia64. [[email protected]: fix ia64 FLATMEM+VIRTUAL_MEM_MAP] Signed-off-by: Mel Gorman <[email protected]> Signed-off-by: Bob Picco <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: "Keith Mannthey" <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Yasunori Goto <[email protected]> Signed-off-by: Bob Picco <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] Have x86_64 use add_active_range() and free_area_init_nodesMel Gorman7-153/+82
Size zones and holes in an architecture independent manner for x86_64. Signed-off-by: Mel Gorman <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: "Keith Mannthey" <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Yasunori Goto <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] Have x86 use add_active_range() and free_area_init_nodesMel Gorman4-166/+34
Size zones and holes in an architecture independent manner for x86. [[email protected]: build fix] Signed-off-by: Mel Gorman <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: "Keith Mannthey" <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Yasunori Goto <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] Have Power use add_active_range() and free_area_init_nodes()Mel Gorman5-191/+52
Size zones and holes in an architecture independent manner for Power. [[email protected]: build fix] Signed-off-by: Mel Gorman <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: "Keith Mannthey" <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Yasunori Goto <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] fix "cpu to node relationship fixup: map cpu to node"KAMEZAWA Hiroyuki1-2/+0
Fix build error introduced by 3212fe1594e577463bc8601d28aa008f520c3377 Non-NUMA case should be handled. Signed-off-by: KAMEZAWA Hiroyuki <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[ARM] do_bad_area() always takes current and current->active_mmRussell King3-14/+8
Since do_bad_area() always takes the currently active task and (supposed to) take the currently active MM, there's no point passing them to this function. Instead, obtain references to them inside do_bad_area(). Signed-off-by: Russell King <[email protected]>
2006-09-27Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds2-2/+3
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (28 commits) pciehp - fix wrong return value IA64: PCI: dont disable irq which is not enabled acpiphp: add support for ioapic hot-remove PCI: assign ioapic resource at hotplug acpiphp: disable bridges acpiphp: stop bus device before acpi_bus_trim PCI: add pci_stop_bus_device acpiphp: do not initialize existing ioapics acpiphp: initialize ioapics before starting devices acpiphp: set hpp values before starting devices PCI Hotplug: cleanup pcihp skeleton code. PCI: Restore PCI Express capability registers after PM event PCI: drivers/pci/hotplug/acpiphp_glue.c: make a function static PCI: Multiprobe sanitizer PCI: fix __must_check warnings PCI Hotplug: fix __must_check warnings SHPCHP: fix __must_check warnings PCI-Express AER implemetation: pcie_portdrv error handler PCI-Express AER implemetation: AER core and aerdriver PCI-Express AER implemetation: export pcie_port_bus_type ...
2006-09-27[ARM] Add setup_mm_for_reboot() for nommuRussell King1-0/+7
Add an empty setup_mm_for_reboot() function for nommu machines. Signed-off-by: Russell King <[email protected]>
2006-09-27[ARM] Rename mm-armv.c to pgd.cRussell King2-4/+2
mm-armv.c now only contains the pgd allocation/freeing code, so rename it to have a more sensible filename. Signed-off-by: Russell King <[email protected]>
2006-09-27[ARM] Move rest of MMU setup code from mm-armv.c to mmu.cRussell King3-551/+542
If we're going to have mmu.c for code which is specific to the MMU machines, we might as well move the other MMU initialisation specific code from mm-armv.c into this new file. This also allows us to make some functions static. Signed-off-by: Russell King <[email protected]>
2006-09-27[ARM] Split ARM MM initialisation for !mmuRussell King5-206/+274
Move the MMU specific code from init.c into mmu.c, and add nommu fixups to nommu.c Signed-off-by: Russell King <[email protected]>
2006-09-27[MIPS] setup.c: use early_param() for early command line parsingFranck Bui-Huu1-112/+60
There's no point to rewrite some logic to parse command line to pass initrd parameters or to declare a user memory area. We could use instead parse_early_param() that does the same thing. Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] setup.c: remove MAXMEM macroFranck Bui-Huu1-9/+3
It doesn't improve readability. Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] setup.c: do not inline functionsFranck Bui-Huu1-2/+2
There's no point to inline any functions in setup.c. Let's GCC doing its job, it's good enough for that now. Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] setup.c: remove useless includes.Franck Bui-Huu1-14/+0
Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] setup.c: move initrd code inside dedicated functionsFranck Bui-Huu1-58/+86
NUMA specific code could rely on them too. Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] setup.c: cleanup bootmem_init()Franck Bui-Huu1-78/+57
This function although doing simple thing is hard to follow. It's mainly due to: - a lot of #ifdef - bad local names - redundant tests So this patch try to address these issues. It also do not use max_pfn global which is marked as an unused exported symbol. As a bonus side, it's now really easy to see what part of the code is for no-numa system. There's also no point to make this function inline. Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] get_wchan(): remove uses of mfinfo[64]Franck Bui-Huu1-82/+50
This array was used to 'cache' some frame info about scheduler functions to speed up get_wchan(). This array was 1Ko size and was only used when CONFIG_KALLSYMS was set but declared for all configs. Rather than make the array statement conditional, this patches removes this array and its uses. Indeed the common case doesn't seem to use this array and get_wchan() is not a critical path anyways. It results in a smaller bss and a smaller/cleaner code: text data bss dec hex filename 2543808 254148 139296 2937252 2cd1a4 vmlinux-new-get-wchan 2544080 254148 143392 2941620 2ce2b4 vmlinux~old Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] get_frame_info(): null function size means size is unknownFranck Bui-Huu1-2/+10
This patch adds 2 sanity checks. The first one test that the start address of the function to analyze has been set by the caller. If not return an error since nothing usefull can be done without. The second one checks that the function's size has been set. A null size can happen if CONFIG_KALLSYMS is not set and it means that we don't know the size of the function to analyze. In this case, we make it equal to 128 instructions by default. Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] unwind_stack(): return ra if an exception occured at the first ↵Franck Bui-Huu1-2/+5
instruction Signed-off-by: Franck Bui-Huu <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Enable tmpfs for anything that possibly runs a full distribution.Ralf Baechle13-14/+14
Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] The o32 fstatat syscall behaves differently on 32 and 64 bit kernelsRichard Sandiford1-1/+1
While working on a glibc patch to support the fstatat() functions[1], I noticed that the o32 implementation behaves differently on 32-bit and 64-bit kernels; the former provides a stat64 while the latter provides a plain (o32) stat. I think the former is what's intended, as there is no separate fstatat64. It's also what x86 does. I think this is just a case of a compat too far. [1] I've seen Khem's patch, but I don't think it's right. Signed-off-by: Richard Sandiford <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Remove EV96100 as previously announced.Ralf Baechle61-1924/+0
Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Replace BARRIER with more appropriate hazard barrier.Ralf Baechle1-13/+8
This is the unchanged part 2 of Chris' hazard cleanup. Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] IP27: Delete useless declaration of allocate_irqno().Ralf Baechle1-2/+0
Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Add configuration variables for RM9xxx processor[email protected]1-0/+16
This patch introduces a number of configuration variables. These allow to specify presence/absence of integrated peripherals found on the MIPS RM9xxx processor family, based on the particular processor model used. Signed-off-by: Thomas Koeller <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Move excite_fpga.h to include/asm-mips/mach-excite[email protected]1-80/+0
excite_fpga.h, like all platform headers, really belongs in the platform header directory. Signed-off-by: Thomas Koeller <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Suppress compiler warnings[email protected]1-8/+8
The excite platform exports hardware resources for device drivers to use. Any driver wanting to use these resources will look up them by their names. Since these resources are declared to have static linkage, but are not used in the source file defining them, the compiler used to emit an 'unused' warning, which this patch suppresses. Signed-off-by: Thomas Koeller <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Move definition of IRIX compat constant into IRIX compat code.Ralf Baechle1-0/+3
Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] c-r4k: Convert init functions from inline to __init.Ralf Baechle1-10/+10
With more recent compilers inline doesn't necessarily means a function will always be inlined. So leave that decission to the compiler and make the function as __init. Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] TLS: set_thread_area returns asmlinkage int not void.Ralf Baechle1-1/+3
Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] TLS: Delete unused sys32_set_thread_areaRalf Baechle1-6/+0
There is no need for a compat version. Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Make PROT_WRITE imply PROT_READ.Ralf Baechle1-1/+1
2006-09-27[MIPS] Atlas: update interrupt handlingMaciej W. Rozycki4-32/+102
The following change updates the Atlas interrupt handling to match that of Malta. Tested with a 5Kc and a 34Kf successfully. Signed-off-by: Maciej W. Rozycki <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Patch to arch/mips/mips-boards/generic/time.cKevin D. Kissell1-21/+36
In hooking up the perf counter overflow interrupt to the experimental deprecated-real-soon-now /proc/perf interface last night, I had to revisit arch/mips/mips-boards/generic/time.c, and discovered that when the 2.6.9-based SMTC prototype was merged with the more recent tree, it was missed that arch/mips/kernel/time.c had changed so that even in SMP kernels, timer_interrupt() calls local_timer_interrupt(), so there is no longer a need to invoke it directly from mips_timer_interrupt() in those cases where timer_interrupt() has been called. So I got rid of that, and added the invocation of perf_irq() if Cause.PCI is set, more-or-less following the same logic as in the non-SMTC case, with the modifications that (a) a runtime check for Release 2 isn't done, because it's redundant in SMTC), and (b) we check for a clock interrupt regardless of the value returned by the perf counter service - I don't understand why we'd want to control that with perf_irq(), but maybe one of you knows the story. I also got rid of the stupid warning about the unused variable when compiled for SMTC (another artifact of the merge). The result hasn't been beaten to death, but boots, seems stable, and supports extended precision event counting. Signed-off-by: Kevin D. Kissell <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Reduce race between cpu_wait() and need_resched() checkingAtsushi Nemoto1-17/+45
If a thread became runnable between need_resched() and the WAIT instruction, switching to the thread will delay until a next interrupt. Some CPUs can execute the WAIT instruction with interrupt disabled, so we can get rid of this race on them (at least UP case). Original Patch by Atsushi with fixing up for MIPS Technology's cores by Ralf based on feedback from the RTL designers. Signed-off-by: Atsushi Nemoto <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] Wire up set_robust_list(2) and get_robust_list(2)Atsushi Nemoto4-1/+9
Signed-off-by: Atsushi Nemoto <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
2006-09-27[MIPS] SEAD defconfig build fixMaciej W. Rozycki1-0/+1
Signed-off-by: Maciej W. Rozycki <[email protected]> Signed-off-by: Ralf Baechle <[email protected]>
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