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To be able to compare the capacity of the target CPU with the highest available CPU capacity, store the maximum per-CPU capacity in the root domain. The max per-CPU capacity should be 1024 for all systems except SMT, where the capacity is currently based on smt_gain and the number of hardware threads and is <1024. If SMT can be brought to work with a per-thread capacity of 1024, this patch can be dropped and replaced by a hard-coded max capacity of 1024 (=SCHED_CAPACITY_SCALE). Signed-off-by: Dietmar Eggemann <[email protected]> Signed-off-by: Morten Rasmussen <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>