Messages in this thread | | | Date | Mon, 28 Sep 2015 12:23:22 +0100 | From | Lee Jones <> | Subject | Re: [PATCH RESEND] rtsx_usb_ms: Use msleep_interruptible() in polling loop |
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On Mon, 28 Sep 2015, Ben Hutchings wrote: > On Mon, 2015-09-28 at 11:34 +0100, Lee Jones wrote: > > The subsystem is missing from the subject line. > > > > On Mon, 28 Sep 2015, Ben Hutchings wrote: > > > rtsx_usb_ms creates a task that mostly sleeps, but tasks in > > > uninterruptible sleep still contribute to the load average (for > > > bug-compatibility with Unix). A load average of ~1 on a system > > > that > > > should be idle is somewhat alarming. > > > > > > Change the sleep to be interruptible, but still ignore signals. > > > > > > A better fix might be to replace this loop with a delayed work > > > item. > > > > > > References: https://bugs.debian.org/765717 > > > Signed-off-by: Ben Hutchings <ben@decadent.org.uk> > > > > How was this patch made? Where's the diff etc? > > With quilt.
Old Skool! ;)
> > Why was this patch sent to me? > > I think I must have added you previously as MFD maintainer, but as this > doesn't touch rtsx_pcr or rtsx_usb it's not really in your area. Sorry > to bother you.
No worries.
> > > --- > > > --- a/drivers/memstick/host/rtsx_usb_ms.c > > > +++ b/drivers/memstick/host/rtsx_usb_ms.c > > > @@ -706,7 +706,8 @@ poll_again: > > > if (host->eject) > > > break; > > > > > > - msleep(1000); > > > + if (msleep_interruptible(1000)) > > > + flush_signals(current); > > > } > > > > > > complete(&host->detect_ms_exit); > >
-- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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