2020-03-22 02:20:22

by Joel Fernandes

[permalink] [raw]
Subject: [PATCH] Documentation: Clarify better about the rwsem non-owner release issue

Reword and clarify better about the rwsem non-owner release issue.

Link: https://lore.kernel.org/linux-pci/[email protected]/

Signed-off-by: Joel Fernandes (Google) <[email protected]>
---
Documentation/locking/locktypes.rst | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/locking/locktypes.rst b/Documentation/locking/locktypes.rst
index 6f2c0f5b041e..656dce72f11f 100644
--- a/Documentation/locking/locktypes.rst
+++ b/Documentation/locking/locktypes.rst
@@ -292,7 +292,7 @@ implementations to provide priority inheritance for all lock types except
the truly spinning ones. Priority inheritance on ownerless locks is
obviously impossible.

-For now the rwsem non-owner release excludes code which utilizes it from
-being used on PREEMPT_RT enabled kernels. In same cases this can be
-mitigated by disabling portions of the code, in other cases the complete
-functionality has to be disabled until a workable solution has been found.
+For now, a PREEMPT_RT kernel just disables code sections that perform a
+non-owner release of an rwsem. In some cases, parts of the code are disabled.
+In other cases, the complete functionality has to be disabled until a workable
+solution has been found.
--
2.25.1.696.g5e7596f4ac-goog


2020-03-22 06:52:40

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH] Documentation: Clarify better about the rwsem non-owner release issue

"Joel Fernandes (Google)" <[email protected]> writes:

> Reword and clarify better about the rwsem non-owner release issue.
>
> Link: https://lore.kernel.org/linux-pci/[email protected]/
>
> Signed-off-by: Joel Fernandes (Google) <[email protected]>

There's something wrong with your linux-pci and linux-usb addresses:

"[email protected] Felipe Balbi" <[email protected]>,


"[email protected] Kalle Valo" <[email protected]>,


--
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

2020-03-23 18:25:31

by Joel Fernandes

[permalink] [raw]
Subject: Re: [PATCH] Documentation: Clarify better about the rwsem non-owner release issue

On Sun, Mar 22, 2020 at 08:51:15AM +0200, Kalle Valo wrote:
> "Joel Fernandes (Google)" <[email protected]> writes:
>
> > Reword and clarify better about the rwsem non-owner release issue.
> >
> > Link: https://lore.kernel.org/linux-pci/[email protected]/
> >
> > Signed-off-by: Joel Fernandes (Google) <[email protected]>
>
> There's something wrong with your linux-pci and linux-usb addresses:
>
> "[email protected] Felipe Balbi" <[email protected]>,
>
>
> "[email protected] Kalle Valo" <[email protected]>,

Not sure. It appears fine in the archive. Thomas, let me know if you wanted
me to resend the diff patch. Hopefully it squashed fine into your original
patch.

thanks,

- Joel