Eric Lee / smarc-fsl-linux-kernel

06 Oct, 2006

1 commit

26 Sep, 2006

1 commit

04 Jul, 2006

1 commit

26 Jun, 2006

1 commit

  • bfe5d8341   [PATCH] Define __raw_get_cpu_var and use it ... Browse Code »

    There are several instances of per_cpu(foo, raw_smp_processor_id()), which
    is semantically equivalent to __get_cpu_var(foo) but without the warning
    that smp_processor_id() can give if CONFIG_DEBUG_PREEMPT is enabled. For
    those architectures with optimized per-cpu implementations, namely ia64,
    powerpc, s390, sparc64 and x86_64, per_cpu() turns into more and slower
    code than __get_cpu_var(), so it would be preferable to use __get_cpu_var
    on those platforms.

    This defines a __raw_get_cpu_var(x) macro which turns into per_cpu(x,
    raw_smp_processor_id()) on architectures that use the generic per-cpu
    implementation, and turns into __get_cpu_var(x) on the architectures that
    have an optimized per-cpu implementation.

    Signed-off-by: Paul Mackerras
    Acked-by: David S. Miller
    Acked-by: Ingo Molnar
    Acked-by: Martin Schwidefsky
    Cc: Rusty Russell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Paul Mackerras
     

01 Apr, 2006

1 commit

  • 97db7fbfc   [PATCH] for_each_possible_cpu: s390 ... Browse Code »

    for_each_cpu() actually iterates across all possible CPUs. We've had mistakes
    in the past where people were using for_each_cpu() where they should have been
    iterating across only online or present CPUs. This is inefficient and
    possibly buggy.

    We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
    future.

    This patch replaces for_each_cpu with for_each_possible_cpu.

    Signed-off-by: KAMEZAWA Hiroyuki
    Cc: Martin Schwidefsky
    Cc: Heiko Carstens
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    KAMEZAWA Hiroyuki
     

23 Mar, 2006

1 commit

  • 394e3902c   [PATCH] more for_each_cpu() conversions ... Browse Code »

    When we stop allocating percpu memory for not-possible CPUs we must not touch
    the percpu data for not-possible CPUs at all. The correct way of doing this
    is to test cpu_possible() or to use for_each_cpu().

    This patch is a kernel-wide sweep of all instances of NR_CPUS. I found very
    few instances of this bug, if any. But the patch converts lots of open-coded
    test to use the preferred helper macros.

    Cc: Mikael Starvik
    Cc: David Howells
    Acked-by: Kyle McMartin
    Cc: Anton Blanchard
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mackerras
    Cc: Martin Schwidefsky
    Cc: Heiko Carstens
    Cc: Paul Mundt
    Cc: "David S. Miller"
    Cc: William Lee Irwin III
    Cc: Andi Kleen
    Cc: Christian Zankel
    Cc: Philippe Elie
    Cc: Nathan Scott
    Cc: Jens Axboe
    Cc: Eric Dumazet
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds