Re: [patch] voluntary-preempt-2.6.9-rc1-bk4-Q7

Mark_H_Johnson_at_Raytheon.com
Date: 09/02/04

  • Next message: Ingo Molnar: "Re: [patch] voluntary-preempt-2.6.9-rc1-bk4-Q7" 
    To: Ingo Molnar <mingo@elte.hu>
Date:	Thu, 2 Sep 2004 08:33:27 -0500

    >> I also looked briefly at find_first_bit since it appears in a number
    >> of traces. Just curious, but the coding for the i386 version is MUCH
    >> different in style than several other architectures (e.g, PPC64,
    >> SPARC). Is there some reason why it is recursive on the x86 and a loop
    >> in the others?
    >
    >what do you mean by recursive? It uses the SCAS (scan string) x86
    >instruction.

    Never mind. In bitops.c I misread "find_first_bit" (the call near the end)
    as "find_next_bit" and thought there was recursion here.

    --Mark H Johnson
      <mailto:Mark_H_Johnson@raytheon.com>

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  • Next message: Ingo Molnar: "Re: [patch] voluntary-preempt-2.6.9-rc1-bk4-Q7"

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