linux-kernel - Re: [PATCH v5 1/3] man/man2const/PR_FUTEX_HASH.2const: Update as of Linux v6.17-rc2

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Message-ID: <q2got5wbyhqm5bzxao4haixwrnpoaqdxykxf5carzb25rfg3ah@khvkd44ejiia>
Date: Tue, 19 Aug 2025 13:03:19 +0200
From: Alejandro Colomar <alx@...nel.org>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: linux-kernel@...r.kernel.org, linux-man@...r.kernel.org, 
	André Almeida <andrealmeid@...lia.com>, Darren Hart <dvhart@...radead.org>, 
	Davidlohr Bueso <dave@...olabs.net>, Ingo Molnar <mingo@...hat.com>, 
	Juri Lelli <juri.lelli@...hat.com>, Peter Zijlstra <peterz@...radead.org>, 
	Thomas Gleixner <tglx@...utronix.de>, Valentin Schneider <vschneid@...hat.com>, 
	Waiman Long <longman@...hat.com>
Subject: Re: [PATCH v5 1/3] man/man2const/PR_FUTEX_HASH.2const: Update as of
 Linux v6.17-rc2

Hi Sebastian,

On Tue, Aug 19, 2025 at 09:17:26AM +0200, Sebastian Andrzej Siewior wrote:
> The PR_FUTEX_HASH prctl interface was updated shortly before the release
> of v6.16. The changes are:
> - the functionality was disabled in v6.16 and enabled v6.17-rc1 after
>   some updates the address performance concerns.
> - the "IMMUTABLE" functionality was removed.
> 
> Update the page accordingly.
> 
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

Thanks!  I've applied the patch.


Cheers,
Alex

> ---
>  man/man2const/PR_FUTEX_HASH.2const | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/man/man2const/PR_FUTEX_HASH.2const b/man/man2const/PR_FUTEX_HASH.2const
> index b500c943bf2cb..bc05226cd1594 100644
> --- a/man/man2const/PR_FUTEX_HASH.2const
> +++ b/man/man2const/PR_FUTEX_HASH.2const
> @@ -44,7 +44,7 @@ since random processes can
>  share in-kernel locks
>  and it is not deterministic which process will be involved.
>  .P
> -Linux 6.16 implements a process-wide private hash which is used by all
> +Linux 6.17 implements a process-wide private hash which is used by all
>  .BR futex (2)
>  operations that specify the
>  .B FUTEX_PRIVATE_FLAG
> @@ -68,8 +68,6 @@ The value in
>  .I op
>  is one of the options below.
>  .TP
> -.B PR_FUTEX_HASH_GET_IMMUTABLE
> -.TQ
>  .B PR_FUTEX_HASH_GET_SLOTS
>  .TQ
>  .B PR_FUTEX_HASH_SET_SLOTS
> @@ -82,10 +80,9 @@ is set to indicate the error.
>  .SH STANDARDS
>  Linux.
>  .SH HISTORY
> -Linux 6.16.
> +Linux 6.17.
>  .SH SEE ALSO
>  .BR prctl (2),
>  .BR futex (2),
> -.BR PR_FUTEX_HASH_GET_IMMUTABLE (2const),
>  .BR PR_FUTEX_HASH_GET_SLOTS (2const),
>  .BR PR_FUTEX_HASH_SET_SLOTS (2const)
> -- 
> 2.50.1
> 

-- 
<https://www.alejandro-colomar.es/>

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