- 10 3月, 2009 1 次提交
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由 Masami Hiramatsu 提交于
Expand irq-off region to cover fixmap using code and cache synchronizing. Signed-off-by: NMasami Hiramatsu <mhiramat@redhat.com> LKML-Reference: <49B54688.8090403@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 06 3月, 2009 4 次提交
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由 Masami Hiramatsu 提交于
Use fixmaps instead of vmap/vunmap in text_poke() for avoiding page allocation and delayed unmapping. At the result of above change, text_poke() becomes atomic and can be called from stop_machine() etc. Signed-off-by: NMasami Hiramatsu <mhiramat@redhat.com> Acked-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca> LKML-Reference: <49B14352.2040705@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Masami Hiramatsu 提交于
Use the mutual exclusion provided by the text edit lock in alternatives code. Since alternative_smp_* will be called from module init code, etc, we'd better protect it from other subsystems. Signed-off-by: NMasami Hiramatsu <mhiramat@redhat.com> LKML-Reference: <49B14332.9030109@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Markus Metzger 提交于
ds_write_config() can write the BTS as well as the PEBS part of the DS config. ds_request_pebs() passes the wrong qualifier, which results in the wrong configuration to be written. Reported-by: NStephane Eranian <eranian@googlemail.com> Signed-off-by: NMarkus Metzger <markus.t.metzger@intel.com> LKML-Reference: <20090305085721.A22550@sedona.ch.intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Markus Metzger 提交于
In case a ptraced task is reaped (while the tracer is still attached), ds_exit_thread() is called before ptrace_exit(). The latter will release the bts_tracer and remove the thread's ds_ctx. The former will WARN() if the context is not NULL. Oleg Nesterov submitted patches that move ptrace_exit() before exit_thread() and thus reverse the order of the above calls. Remove the bad warning. I will add it again when Oleg's changes are in. Signed-off-by: NMarkus Metzger <markus.t.metzger@intel.com> LKML-Reference: <20090305084954.A22000@sedona.ch.intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 05 3月, 2009 35 次提交
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由 Ingo Molnar 提交于
Make ack_APIC_irq() build on !SMP && !APIC too. Cc: Dimitri Sivanich <sivanich@sgi.com> LKML-Reference: <20090304185605.GA24419@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
Impact: cleanup, micro-optimization Pre-initialize boot_cpu_data.x86_phys_bits to a reasonable default to remove the use of system_state tests in __virt_addr_valid() and __phys_addr(). Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
Rather than relying on the ever-unreliable system_state, add a specific __vmalloc_start_set flag to indicate whether the vmalloc area has meaningful boundaries yet, and use that in x86-32's __phys_addr and __virt_addr_valid. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
gcc 3.2.2 reports: In file included from /usr/src/all/linux-next/arch/x86/include/asm/page.h:8, from /usr/src/all/linux-next/arch/x86/include/asm/processor.h:18, from /usr/src/all/linux-next/arch/x86/include/asm/atomic_32.h:6, from /usr/src/all/linux-next/arch/x86/include/asm/atomic.h:2, from include/linux/crypto.h:20, from arch/x86/kernel/asm-offsets_32.c:7, from arch/x86/kernel/asm-offsets.c:2: /usr/src/all/linux-next/arch/x86/include/asm/page_types.h:54: warning: parameter has incomplete type /usr/src/all/linux-next/arch/x86/include/asm/page_types.h:56: warning: parameter has incomplete type In file included from /usr/src/all/linux-next/arch/x86/include/asm/page.h:8, from /usr/src/all/linux-next/arch/x86/include/asm/processor.h:18, from include/linux/prefetch.h:14, from include/linux/list.h:6, from include/linux/module.h:9, from init/main.c:13: /usr/src/all/linux-next/arch/x86/include/asm/page_types.h:54: warning: parameter has incomplete type /usr/src/all/linux-next/arch/x86/include/asm/page_types.h:56: warning: parameter has incomplete type This is a bogus warning, but moving the pat-related functions into asm/pat.h and including asm/pgtable_types.h should fix it. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Reported-by: NTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Impact: build fix Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-14-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-17-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup In preparation for moving the function declaration to a header file, unify 32-bit and 64-bit signatures. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-16-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup The table_start, table_end, and table_top are too generic for global namespace so rename them to be more specific. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-15-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup This patch moves the init_memory_mapping() function to common mm/init.c. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-14-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup This patch adds an empty static inline init_gbpages() for the 32-bit version of init_memory_mapping() making both versions identical. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-13-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup As a trivial preparation for moving common code to arc/x86/mm/init.c, ifdef the 32-bit and 64-bit versions of NR_RANGE_MR. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-12-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup To reduce the diff between the 32-bit and 64-bit versions of init_memory_mapping(), ifdef configuration specific pfn setup code in the function. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-11-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup To reduce the diff between the 32-bit and 64-bit versions of init_memory_mapping(), ifdef configuration specific setup code in the function. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-10-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup This patch adds a sanity check to the 32-bit version of init_memory_mapping() to reduce the diff to the 64-bit version. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-9-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup The 64-bit version of init_memory_mapping() uses the last mapped address returned from kernel_physical_mapping_init() whereas the 32-bit version doesn't. This patch adds relevant ifdefs to both versions of the function to reduce the diff between them. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-8-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup This patch renames after_init_bootmem to after_bootmem in mm/init_32.c to reduce the diff to the 64-bit version of of init_memory_mapping(). Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-7-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup The save_mr() function already checks that start_pfn is less than end_pfn so we can remove the unnecessary check which reduces the diff between the 32-bit and the 64-bit versions of init_memory_mapping(). Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-6-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup Enabling NX, PSE, and PGE are only required on 32-bit so ifdef them in both versions of the function. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-5-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup This patch moves pgd_base out of init_memory_mapping() to reduce the diff between the 32-bit version and the 64-bit version of the function. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-4-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup There are some minor differences between the 32-bit and 64-bit find_early_table_space() functions. This patch wraps those differences under CONFIG_X86_32 to make the function identical on both configurations. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-3-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup To reduce the diff between the 32-bit and 64-bit versions of init_memory_mapping(), add gbpages support to the 32-bit version. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-2-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup To reduce the diff between the 32-bit and 64-bit versions of init_memory_mapping(), fix up all trivial issues. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Frederic Weisbecker 提交于
Impact: decrease hangs risks with the graph tracer on slow systems Since the function graph tracer can spend too much time on timer interrupts, it's better now to use the more lightweight local clock. Anyway, the function graph traces are more reliable on a per cpu trace. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <49af243d.06e9300a.53ad.ffff840c@mx.google.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Dimitri Sivanich 提交于
Fix non-smp build of uv_time.c. Signed-off-by: NDimitri Sivanich <sivanich@sgi.com> LKML-Reference: <20090304220246.GC6288@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Yinghai Lu 提交于
Impact: clean up Simplify the code, reuse some lines. Remove min_low_pfn reference, it is always 0 Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <49AEE2C4.2030602@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Pekka Enberg 提交于
Impact: cleanup The function is identical on 32-bit and 64-bit configurations so move it to the common mm/init.c file. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> LKML-Reference: <1236158020.29024.28.camel@penberg-laptop> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Leann Ogasawara 提交于
Dell XPS710 will hang on reboot. This is resolved by adding a quirk to set bios reboot. Signed-off-by: NLeann Ogasawara <leann.ogasawara@canonical.com> Signed-off-by: NTim Gardner <tim.gardner@canonical.com> Cc: "manoj.iyer" <manoj.iyer@canonical.com> Cc: <stable@kernel.org> LKML-Reference: <1236196380.3231.89.camel@emiko> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Yinghai Lu 提交于
Impact: save a bit of RAM Get the exact size for the reserve_bootmem() call. Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <49AE4922.605@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Yinghai Lu 提交于
Impact: fix boot with mptable above max_low_mapped Try to use early_ioremap() to map MPC to make sure it works even it is at the end of ram. Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <49AE4901.3090801@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Reported-and-tested-by: NKevin O'Connor <kevin@koconnor.net>
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由 Yinghai Lu 提交于
Impact: cleanup make code more readable and more like 64-bit Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <49AE48B4.8010907@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Yinghai Lu 提交于
Impact: fix panic on system 2g x4 sockets Found one system with 4 sockets and every sockets has 2g can not boot with numa32 because boot mem is crossing nodes. So try to have numa version of setup_bootmem_allocator(). Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <49AE485B.8000902@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Daniel Glöckner 提交于
Impact: fix math-emu related crash while using GDB/ptrace init_fpu() calls finit to initialize a task's xstate, while finit always works on the current task. If we use PTRACE_GETFPREGS on another process and both processes did not already use floating point, we get a null pointer exception in finit. This patch creates a new function finit_task that takes a task_struct parameter. finit becomes a wrapper that simply calls finit_task with current. On the plus side this avoids many calls to get_current which would each resolve to an inline assembler mov instruction. An empty finit_task has been added to i387.h to avoid linker errors in case the compiler still emits the call in init_fpu when CONFIG_MATH_EMULATION is not defined. The declaration of finit in i387.h has been removed as the remaining code using this function gets its prototype from fpu_proto.h. Signed-off-by: NDaniel Glöckner <dg@emlix.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: "Pallipadi Venkatesh" <venkatesh.pallipadi@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Bill Metzenthen <billm@melbpc.org.au> LKML-Reference: <E1Lew31-0004il-Fg@mailer.emlix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Dimitri Sivanich 提交于
This patch provides a high resolution clock/timer source using the SGI UV system-wide synchronized RTC clock/timer hardware. Signed-off-by: NDimitri Sivanich <sivanich@sgi.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: john stultz <johnstul@us.ibm.com> LKML-Reference: <20090304185918.GC24419@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Dimitri Sivanich 提交于
Add macro to loop through each possible blade. Signed-off-by: NDimitri Sivanich <sivanich@sgi.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: john stultz <johnstul@us.ibm.com> LKML-Reference: <20090304185719.GB24419@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Dimitri Sivanich 提交于
This patch allocates a system interrupt vector for various platform specific uses. Signed-off-by: NDimitri Sivanich <sivanich@sgi.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: john stultz <johnstul@us.ibm.com> LKML-Reference: <20090304185605.GA24419@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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