Home
last modified time | relevance | path

Searched hist:"09 e0dd8e0f2e197690d34fed8cb4737114d3dd5f" (Results 1 – 1 of 1) sorted by relevance

/openbmc/linux/kernel/sched/
H A Dtopology.cdiff 09e0dd8e0f2e197690d34fed8cb4737114d3dd5f Tue Aug 08 05:16:24 CDT 2017 Peter Zijlstra <peterz@infradead.org> sched/topology: Avoid pointless rebuild

Fix partition_sched_domains() to try and preserve the existing machine
wide domain instead of unconditionally destroying it. We do this by
attempting to allocate the new single domain, only when that fails to
we reuse the fallback_doms.

When using fallback_doms we need to first destroy and then recreate
because both the old and new could be backed by it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ofer Levi(SW) <oferle@mellanox.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineet.Gupta1@synopsys.com <Vineet.Gupta1@synopsys.com>
Cc: rusty@rustcorp.com.au <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@kernel.org>