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    SubjectRe: [patch 1/2] x86,fpu: split FPU state from task struct
    On Sun, Feb 24, 2008 at 08:22:02AM +0100, Ingo Molnar wrote:
    >
    > * Suresh Siddha <suresh.b.siddha@intel.com> wrote:
    >
    > > Split the FPU save area from the task struct. This allows easy
    > > migration of FPU context, and it's generally cleaner. It also allows
    > > the following two optimizations:
    > >
    > > 1) only allocate when the application actually uses FPU, so in the
    > > first lazy FPU trap. This could save memory for non-fpu using apps.
    > > Next patch does this lazy allocation.
    > >
    > > 2) allocate the right size for the actual cpu rather than 512 bytes
    > > always. Patches enabling xsave/xrstor support (coming shortly) will
    > > take advantage of this.
    >
    > i like the concept. Please clean up the issues found by Christoph and
    > please also base it against x86.git#testing [this is clear 2.6.26
    > material and there are already some changes in this area]:
    >
    > http://people.redhat.com/mingo/x86.git/README

    Sure. Will do that in a day.

    thanks,
    suresh


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