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From: Cyril Hrubis <chrubis@suse.cz>
To: Petr Vorel <pvorel@suse.cz>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH v3] Introduce ioctl_pidfd_get_info_supported() function
Date: Wed, 24 Sep 2025 10:40:01 +0200	[thread overview]
Message-ID: <aNOuYfhEU160i2gE@yuki.lan> (raw)
In-Reply-To: <20250923184449.GA45748@pevik>

Hi!
> > use this routine in ioctl_pidfd05 before proceeding with the test
> 
> Reviewed-by: Petr Vorel <pvorel@suse.cz>
> 
> BTW, when testing on 6.11, I got:
> ioctl_pidfd05.c:45: TFAIL: ioctl(pidfd, PIDFD_GET_INFO, NULL) expected EINVAL: ENOTTY (25)

This is exactly what this patch is trying to address. Not sure what went
wrong there.

> Which is error unrelated to this patch, it's from original.
> 196988f7d1 ("Add ioctl_pidfd05 test")
> 
> Doc in ioctl_pidfd_info_exit_supported() is clear about it:
> 		/* - ENOTTY: old kernels not implementing fs/pidfs.c:pidfd_ioctl
> 		 * - EINVAL: until v6.13 kernel
> 		 * - ESRCH: all kernels between v6.13 and v6.15
> 		 */

And the pidfd_info_supported() tries to address that by returning zero
on ENOTTY.

-- 
Cyril Hrubis
chrubis@suse.cz

-- 
Mailing list info: https://lists.linux.it/listinfo/ltp

  reply	other threads:[~2025-09-24  8:39 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-22 20:39 [LTP] [PATCH] Introduce ioctl_pidfd_get_info_supported() function Avinesh Kumar
2025-09-22 21:07 ` Petr Vorel
2025-09-23  7:51   ` [LTP] [PATCH v2] " Avinesh Kumar
2025-09-23  9:43     ` Petr Vorel
2025-09-23 11:17     ` Cyril Hrubis
2025-09-23 11:39       ` Petr Vorel
2025-09-23 11:49         ` Cyril Hrubis
2025-09-23 15:03           ` [LTP] [PATCH v3] " Avinesh Kumar
2025-09-23 18:44             ` Petr Vorel
2025-09-24  8:40               ` Cyril Hrubis [this message]
2025-09-24 20:29                 ` [LTP] [PATCH v4] " Avinesh Kumar
2025-09-25  2:05                   ` Li Wang via ltp
2025-09-25  2:44                   ` Li Wang via ltp
2025-09-25  8:19                     ` [LTP] [PATCH v5] " Avinesh Kumar
2025-09-25 11:45                       ` Petr Vorel
2025-09-25 12:15                       ` Petr Vorel
2025-09-25  6:54                   ` [LTP] [PATCH v4] " Cyril Hrubis
2025-09-24  8:34             ` [LTP] [PATCH v3] " Cyril Hrubis
2025-09-24 20:30               ` Avinesh Kumar

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