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Subject[PATCH V2 0/3] sched: idle_balance() cleanup and fix

this patchset replace the beginning of the previous mixed one which was not
yet commited [1] without changes except a compilation error fix for UP kernel
config. It is refreshed against tip/sched/core.

As the UP config compilation is broken on the previous patchset, git bisect is
no longer safe for it. You can apply this small serie and drop the 3 first
patches of the previous series [1], or ignore it and I will bring the fix
after you applied [1].

It cleanups the idle_balance function parameters by passing the struct rq
only, fixes a race in the idle_balance function and finally move the idle_stamp
from fair.c to core.c. I am aware it will return back to fair.c with Peter's
pending patches but at least it changes the idle_balance() function to return
true if a balance occured.


* fixed compilation errors when CONFIG_SMP=n

V1: initial post

Daniel Lezcano (3):
sched: Remove cpu parameter for idle_balance()
sched: Fix race in idle_balance()
sched: Move idle_stamp up to the core

kernel/sched/core.c | 13 +++++++++++--
kernel/sched/fair.c | 20 +++++++++++++-------
kernel/sched/sched.h | 8 +-------
3 files changed, 25 insertions(+), 16 deletions(-)


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