linux-kernel - Re: [PATCH v4 1/4] man/man2/prctl.2, man/man2const/PR_FUTEX_HASH.2const: Document PR_FUTEX

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Message-ID: <hnghlt2dekdjb34vitzdu3w6zfkrlq64vetaqaj37rk5g4hu4h@m4cmds43h6av>
Date: Wed, 11 Jun 2025 11:50:31 +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 v4 1/4] man/man2/prctl.2,
 man/man2const/PR_FUTEX_HASH.2const: Document PR_FUTEX_HASH

Hi Sebastian,

On Wed, Jun 11, 2025 at 10:47:16AM +0200, Sebastian Andrzej Siewior wrote:
> On 2025-06-11 10:43:07 [+0200], Alejandro Colomar wrote:
> > Hi Sebastian,
> Hi,
> 
> > On Mon, Jun 02, 2025 at 04:01:01PM +0200, Sebastian Andrzej Siewior wrote:
> > > The prctl(PR_FUTEX_HASH) is queued for the v6.16 merge window.
> > > Add some documentation of the interface.
> > > 
> > > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> > 
> > LGTM, thanks!  Please let me know when this is merged into Linus's tree.
> 
> This is in v6.16-rc1 since last Monday. We do regression handling now
> but I think it will stay. I can poke you once v6.16 is out in case we
> need a last minute revert of this.

Thanks!

I've applied patch 1/4, with the following amendments:

	diff --git i/man/man2const/PR_FUTEX_HASH.2const w/man/man2const/PR_FUTEX_HASH.2const
	index 08511b183..b500c943b 100644
	--- i/man/man2const/PR_FUTEX_HASH.2const
	+++ w/man/man2const/PR_FUTEX_HASH.2const
	@@ -53,14 +53,16 @@ .SH DESCRIPTION
	 the kernel will allocate 16 hash slots
	 once the first thread has been created.
	 If the process continues to create threads,
	-the kernel will try to resize the private hash based on the number of threads
	+the kernel will try to resize the private hash
	+based on the number of threads
	 and available CPUs in the system.
	-The kernel will only increase the size and will make sure it does not exceed
	-the size of the global hash.
	+The kernel will only increase the size
	+and will make sure
	+it does not exceed the size of the global hash.
	 .P
	-The user can configure the size of the private
	-hash which will also disable the
	-automatic resize provided by the kernel.
	+The user can configure the size of the private hash
	+which will also
	+disable the automatic resize provided by the kernel.
	 .P
	 The value in
	 .I op

<https://www.alejandro-colomar.es/src/alx/linux/man-pages/man-pages.git/commit/?h=contrib&id=243de1dbc9cf818fa71c97856cbaf88b9d255b44>


Cheers,
Alex

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

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