[alx@kernel.org: Re: [Bug 222094] sched_setattr: bug in `ERRORS` section w.r.t. `attr.sched_flags contains a flag other than SCHED_FLAG_RESET_ON_FORK`]

[Alejandro Colomar <alx@kernel.org>]

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Ouch!  I forgot to send it to the list.  :)


Cheers,
Alex

----- Forwarded message from Alejandro Colomar <alx@kernel.org> -----

Date: Fri, 23 Oct 2026 21:27:52 +0200
From: Alejandro Colomar <alx@kernel.org>
To: bugzilla-daemon@kernel.org
Cc: Enji Cooper <yaneurabeya@gmail.com>
Subject: Re: [Bug 222094] sched_setattr: bug in `ERRORS` section w.r.t. `attr.sched_flags contains a flag other than
	SCHED_FLAG_RESET_ON_FORK`
Message-ID: <atu07uXukn8V_4YN@debian>
References: <bug-222094-216477@https.bugzilla.kernel.org/> <bug-222094-216477-AkltlLpJO7@https.bugzilla.kernel.org/>
In-Reply-To: <bug-222094-216477-AkltlLpJO7@https.bugzilla.kernel.org/>

Hi,

> Date: 2026-10-23 18:47:22+0000
> From: bugzilla-daemon@kernel.org
>
> https://bugzilla.kernel.org/show_bug.cgi?id=222094
> 
> --- Comment #2 from Enji Cooper (yaneurabeya@gmail.com) ---
> Created attachment 311258
>   --> https://bugzilla.kernel.org/attachment.cgi?id=311258&action=edit
> Patch
> 
> I've honestly never submitted a patch to the Linux mailing lists. There are a
> lot of hoops to jump through in order to make a contribution... I'll try, but
> please bear with me (I'll probably get something wrong).

Sure!  You're welcome to try.  :-)

I've forwarded your patch to the mailing list in this email.


Have a lovely night!
Alex

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

From cfaef3da82a115fbce47dec58b458c6cfc439667 Mon Sep 17 00:00:00 2001
Message-ID: <cfaef3da82a115fbce47dec58b458c6cfc439667.1792780609.git.yaneurabeya@gmail.com>
From: Enji Cooper <yaneurabeya@gmail.com>
Date: Fri, 23 Oct 2026 10:39:20 -0700
Subject: [PATCH] man/man2/sched_setattr.2: update `EINVAL` case with
 `.sched_flags`
To: Alejandro Colomar <alx+linux-man@kernel.org>
Cc: <linux-man@vger.kernel.org>

In more recent versions of the kernel, `.sched_flags` is a treated as a
bitmask that supports values like `SCHED_FLAG_UTIL_CLAMP_MIN`, etc.

Account for the additional flags so the documentation is up to date with
the kernel implementation of `sched_setattr`.

Ref: linux.git 480a6ca2dc6e ("sched/uclamp: Allow to reset a task uclamp constraint value")

Signed-off-by: Enji Cooper <yaneurabeya@gmail.com>
---
 man/man2/sched_setattr.2 | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/man/man2/sched_setattr.2 b/man/man2/sched_setattr.2
index 80a0ac726dcf..b163ba482390 100644
--- a/man/man2/sched_setattr.2
+++ b/man/man2/sched_setattr.2
@@ -411,13 +411,16 @@ .SH ERRORS
 .BR sched (7).
 .TP
 .B EINVAL
-.I attr.sched_policy
-is not one of the recognized policies.
-.TP
-.B EINVAL
 .I attr.sched_flags
 contains a flag other than
-.BR SCHED_FLAG_RESET_ON_FORK .
+.BR SCHED_FLAG_RESET_ON_FORK ,
+.BR SCHED_FLAG_UTIL_CLAMP_MIN ,
+or
+.BR SCHED_FLAG_UTIL_CLAMP_MAX .
+.TP
+.B EINVAL
+.I attr.sched_policy
+is not one of the recognized policies.
 .TP
 .B EINVAL
 .I attr.sched_priority
-- 
2.50.1 (Apple Git-155)





----- End forwarded message -----

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

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