[sched] [patch] schedule-cleanup-2.5.3-pre2-A1

[Ingo Molnar]

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.
  Send mail to [e-mail] for more info.

--8323328-1657085055-1011534922=:7972
Content-Type: TEXT/PLAIN; charset=US-ASCII

the attached patch speeds up and cleans up schedule(), removing the
need_reschedule check on bkl-reacquire. This was needed in 2.2 times when
the big kernel lock was still prominent, but today it's not needed
anymore, especially with the preemption/lowlatency patches that will do
this correctly. This change removes 5 lines from the source code, and a
number of instructions from the scheduler hotpath. (i've also reverted the
switch statement's indentation to the previous, more correct indentation
style.)

	Ingo

--8323328-1657085055-1011534922=:7972
Content-Type: TEXT/PLAIN; charset=US-ASCII; name="schedule-cleanup-2.5.3-pre2-A1"
Content-Transfer-Encoding: BASE64
Content-ID: <[e-mail]>
Content-Description: 
Content-Disposition: attachment; filename="schedule-cleanup-2.5.3-pre2-A1"

LS0tIGxpbnV4L2tlcm5lbC9zY2hlZC5jLm9yaWcJU3VuIEphbiAyMCAxMTo0
NzozOSAyMDAyDQorKysgbGludXgva2VybmVsL3NjaGVkLmMJU3VuIEphbiAy
MCAxMTo0Nzo1MyAyMDAyDQpAQCAtNTg5LDI5ICs1ODksMjYgQEANCiAgKi8N
CiBhc21saW5rYWdlIHZvaWQgc2NoZWR1bGUodm9pZCkNCiB7DQotCXRhc2tf
dCAqcHJldiwgKm5leHQ7DQorCXRhc2tfdCAqcHJldiA9IGN1cnJlbnQsICpu
ZXh0Ow0KKwlydW5xdWV1ZV90ICpycSA9IHRoaXNfcnEoKTsNCiAJcHJpb19h
cnJheV90ICphcnJheTsNCi0JcnVucXVldWVfdCAqcnE7DQogCWxpc3RfdCAq
cXVldWU7DQogCWludCBpZHg7DQogDQogCWlmICh1bmxpa2VseShpbl9pbnRl
cnJ1cHQoKSkpDQogCQlCVUcoKTsNCi1uZWVkX3Jlc2NoZWRfYmFjazoNCi0J
cHJldiA9IGN1cnJlbnQ7DQogCXJlbGVhc2Vfa2VybmVsX2xvY2socHJldiwg
c21wX3Byb2Nlc3Nvcl9pZCgpKTsNCi0JcnEgPSB0aGlzX3JxKCk7DQogCXNw
aW5fbG9ja19pcnEoJnJxLT5sb2NrKTsNCiANCiAJc3dpdGNoIChwcmV2LT5z
dGF0ZSkgew0KLQkJY2FzZSBUQVNLX0lOVEVSUlVQVElCTEU6DQotCQkJaWYg
KHVubGlrZWx5KHNpZ25hbF9wZW5kaW5nKHByZXYpKSkgew0KLQkJCQlwcmV2
LT5zdGF0ZSA9IFRBU0tfUlVOTklORzsNCi0JCQkJYnJlYWs7DQotCQkJfQ0K
LQkJZGVmYXVsdDoNCi0JCQlkZWFjdGl2YXRlX3Rhc2socHJldiwgcnEpOw0K
LQkJY2FzZSBUQVNLX1JVTk5JTkc6DQorCWNhc2UgVEFTS19JTlRFUlJVUFRJ
QkxFOg0KKwkJaWYgKHVubGlrZWx5KHNpZ25hbF9wZW5kaW5nKHByZXYpKSkg
ew0KKwkJCXByZXYtPnN0YXRlID0gVEFTS19SVU5OSU5HOw0KKwkJCWJyZWFr
Ow0KKwkJfQ0KKwlkZWZhdWx0Og0KKwkJZGVhY3RpdmF0ZV90YXNrKHByZXYs
IHJxKTsNCisJY2FzZSBUQVNLX1JVTk5JTkc6DQogCX0NCiBwaWNrX25leHRf
dGFzazoNCiAJaWYgKHVubGlrZWx5KCFycS0+bnJfcnVubmluZykpIHsNCkBA
IC02NTQsOCArNjUxLDYgQEANCiAJc3Bpbl91bmxvY2tfaXJxKCZycS0+bG9j
ayk7DQogDQogCXJlYWNxdWlyZV9rZXJuZWxfbG9jayhjdXJyZW50KTsNCi0J
aWYgKG5lZWRfcmVzY2hlZCgpKQ0KLQkJZ290byBuZWVkX3Jlc2NoZWRfYmFj
azsNCiAJcmV0dXJuOw0KIH0NCiANCg==
--8323328-1657085055-1011534922=:7972--