mbox series

[BUGFIX,0/4] bfq: fix bugs breaking bandwidth guarantees occasionally

Message ID 20180625194806.7619-1-paolo.valente@linaro.org
Headers show
Series bfq: fix bugs breaking bandwidth guarantees occasionally | expand

Message

Paolo Valente June 25, 2018, 7:48 p.m. UTC
Hi,
during some bandwidth tests, I found some occasional but severe
malfunctions (losses of bandwidth control). The first three patches in
this series fix the bugs that caused these malfunctions. The last
patch is a fix/improvement of the name of one of the functions
involved with these bugs.

I guess these patches are appropriate for next kernel release.

Thanks,
Paolo

Paolo Valente (4):
  block, bfq: add/remove entity weights correctly
  block, bfq: do not expire a queue that will deserve dispatch plugging
  block, bfq: fix service being wrongly set to zero in case of
    preemption
  block, bfq: fix service being wrongly set to zero in case of
    preemption

 block/bfq-iosched.c | 131 +++++++++++++++++++++++++++++++++++++++++++---------
 block/bfq-iosched.h |   7 ++-
 block/bfq-wf2q.c    |  30 ++++++------
 3 files changed, 128 insertions(+), 40 deletions(-)

--
2.16.1

Comments

Paolo Valente June 25, 2018, 7:51 p.m. UTC | #1
Sorry, one commit message broken, resending ...

> Il giorno 25 giu 2018, alle ore 21:48, Paolo Valente <paolo.valente@linaro.org> ha scritto:

> 

> Hi,

> during some bandwidth tests, I found some occasional but severe

> malfunctions (losses of bandwidth control). The first three patches in

> this series fix the bugs that caused these malfunctions. The last

> patch is a fix/improvement of the name of one of the functions

> involved with these bugs.

> 

> I guess these patches are appropriate for next kernel release.

> 

> Thanks,

> Paolo

> 

> Paolo Valente (4):

>  block, bfq: add/remove entity weights correctly

>  block, bfq: do not expire a queue that will deserve dispatch plugging

>  block, bfq: fix service being wrongly set to zero in case of

>    preemption

>  block, bfq: fix service being wrongly set to zero in case of

>    preemption

> 

> block/bfq-iosched.c | 131 +++++++++++++++++++++++++++++++++++++++++++---------

> block/bfq-iosched.h |   7 ++-

> block/bfq-wf2q.c    |  30 ++++++------

> 3 files changed, 128 insertions(+), 40 deletions(-)

> 

> --

> 2.16.1