* Re: [GIT PULL] locking fix
[not found] <20190516160135.GA45760@gmail.com>
@ 2019-05-16 17:57 ` Linus Torvalds
2019-05-16 18:39 ` Greg KH
0 siblings, 1 reply; 5+ messages in thread
From: Linus Torvalds @ 2019-05-16 17:57 UTC (permalink / raw)
To: Ingo Molnar, stable
Cc: Linux List Kernel Mailing, Peter Zijlstra, Thomas Gleixner,
Andrew Morton
On Thu, May 16, 2019 at 9:01 AM Ingo Molnar <mingo@kernel.org> wrote:
>
> A single rwsem fix.
Side note, this one isn't marked for stable, but I'm hoping stable
picks it up just from the "Fixes" tag.
Stable people, we're talking about
a9e9bcb45b15 ("locking/rwsem: Prevent decrement of reader count
before increment")
that I just pulled into my tree, and needs to go in 4.9 and later.
Linus
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [GIT PULL] locking fix
2019-05-16 17:57 ` [GIT PULL] locking fix Linus Torvalds
@ 2019-05-16 18:39 ` Greg KH
2019-05-16 18:42 ` Linus Torvalds
0 siblings, 1 reply; 5+ messages in thread
From: Greg KH @ 2019-05-16 18:39 UTC (permalink / raw)
To: Linus Torvalds
Cc: Ingo Molnar, stable, Linux List Kernel Mailing, Peter Zijlstra,
Thomas Gleixner, Andrew Morton
On Thu, May 16, 2019 at 10:57:53AM -0700, Linus Torvalds wrote:
> On Thu, May 16, 2019 at 9:01 AM Ingo Molnar <mingo@kernel.org> wrote:
> >
> > A single rwsem fix.
>
> Side note, this one isn't marked for stable, but I'm hoping stable
> picks it up just from the "Fixes" tag.
>
> Stable people, we're talking about
>
> a9e9bcb45b15 ("locking/rwsem: Prevent decrement of reader count
> before increment")
>
> that I just pulled into my tree, and needs to go in 4.9 and later.
Thanks, I'll work on that later tonight...
greg k-h
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [GIT PULL] locking fix
2019-05-16 18:39 ` Greg KH
@ 2019-05-16 18:42 ` Linus Torvalds
2019-05-16 23:55 ` Sasha Levin
0 siblings, 1 reply; 5+ messages in thread
From: Linus Torvalds @ 2019-05-16 18:42 UTC (permalink / raw)
To: Greg KH
Cc: Ingo Molnar, stable, Linux List Kernel Mailing, Peter Zijlstra,
Thomas Gleixner, Andrew Morton
On Thu, May 16, 2019 at 11:39 AM Greg KH <greg@kroah.com> wrote:
>
> Thanks, I'll work on that later tonight...
Note that it probably is almost entirely impossible to trigger the
problem in practice, so it's not like this is a particularly important
stable back-port.
I just happened to look at it and go "hmm, it's not _marked_ for stable".
Linus
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [GIT PULL] locking fix
2019-05-16 18:42 ` Linus Torvalds
@ 2019-05-16 23:55 ` Sasha Levin
2019-05-17 12:16 ` Greg KH
0 siblings, 1 reply; 5+ messages in thread
From: Sasha Levin @ 2019-05-16 23:55 UTC (permalink / raw)
To: Linus Torvalds
Cc: Greg KH, Ingo Molnar, stable, Linux List Kernel Mailing,
Peter Zijlstra, Thomas Gleixner, Andrew Morton
On Thu, May 16, 2019 at 11:42:58AM -0700, Linus Torvalds wrote:
>On Thu, May 16, 2019 at 11:39 AM Greg KH <greg@kroah.com> wrote:
>>
>> Thanks, I'll work on that later tonight...
>
>Note that it probably is almost entirely impossible to trigger the
>problem in practice, so it's not like this is a particularly important
>stable back-port.
>
>I just happened to look at it and go "hmm, it's not _marked_ for stable".
I've addressed a missing a8654596f03 ("locking/rwsem: Enable lock event
counting") and queued up a backport for 5.1-4.9.
--
Thanks,
Sasha
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [GIT PULL] locking fix
2019-05-16 23:55 ` Sasha Levin
@ 2019-05-17 12:16 ` Greg KH
0 siblings, 0 replies; 5+ messages in thread
From: Greg KH @ 2019-05-17 12:16 UTC (permalink / raw)
To: Sasha Levin
Cc: Linus Torvalds, Ingo Molnar, stable, Linux List Kernel Mailing,
Peter Zijlstra, Thomas Gleixner, Andrew Morton
On Thu, May 16, 2019 at 07:55:53PM -0400, Sasha Levin wrote:
> On Thu, May 16, 2019 at 11:42:58AM -0700, Linus Torvalds wrote:
> > On Thu, May 16, 2019 at 11:39 AM Greg KH <greg@kroah.com> wrote:
> > >
> > > Thanks, I'll work on that later tonight...
> >
> > Note that it probably is almost entirely impossible to trigger the
> > problem in practice, so it's not like this is a particularly important
> > stable back-port.
> >
> > I just happened to look at it and go "hmm, it's not _marked_ for stable".
>
> I've addressed a missing a8654596f03 ("locking/rwsem: Enable lock event
> counting") and queued up a backport for 5.1-4.9.
Thanks for doing this.
greg k-h
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-05-17 12:16 UTC | newest]
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[not found] <20190516160135.GA45760@gmail.com>
2019-05-16 17:57 ` [GIT PULL] locking fix Linus Torvalds
2019-05-16 18:39 ` Greg KH
2019-05-16 18:42 ` Linus Torvalds
2019-05-16 23:55 ` Sasha Levin
2019-05-17 12:16 ` Greg KH
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