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sched/topology: Introduce SD metaflag for flags needing > 1 groups
In preparation of cleaning up the sd_degenerate*() functions, mark flags used in sd_degenerate() with the new SDF_NEEDS_GROUPS flag. With this, build a compile-time mask of those SD flags. Note that sd_parent_degenerate() uses an extra flag in its mask, SD_PREFER_SIBLING, which remains singled out for now. Suggested-by: Peter Zijlstra <[email protected]> Signed-off-by: Valentin Schneider <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Reviewed-by: Dietmar Eggemann <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected]
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Valentin Schneider
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Ingo Molnar
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Aug 19, 2020
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