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From: Pascal Bouchareine <kalou@tfz.net>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-api@vger.kernel.org, Al Viro <viro@zeniv.linux.org.uk>,
	Jeff Layton <jlayton@poochiereds.net>,
	"J. Bruce Fields" <bfields@fieldses.org>
Subject: Re: [PATCH v3] proc,fcntl: introduce F_SET_DESCRIPTION
Date: Mon, 27 Jul 2020 23:25:38 -0700	[thread overview]
Message-ID: <CAGbU3_nPuWyrhOVbHGk7EXb+fVAOR1sC08Fu-1sOdbOsmQkE_A@mail.gmail.com> (raw)
In-Reply-To: <CAGbU3_nkBfrJK55-ZiCc6ve1F+CZBeuSmm6Dike0kkKja-RmVg@mail.gmail.com>

On Mon, Jul 27, 2020 at 6:39 PM Pascal Bouchareine <kalou@tfz.net> wrote:
> > struct file is nicely aligned to 256 bytes on distro configs.
> > Will this break everything?
> >
> >         $ cat /sys/kernel/slab/filp/object_size
>
> Indeed on the config I'm using here this jumped to 264 bytes
>
> Would it be better to move this to the inode struct? I don't know the
> implications of this - any other option?

Well it doesn't actually make much sense to share that at that level

However the above 264 is building from 5.4 without f_sb_err, so I
think master already passed the 256 bytes too ?

  reply	other threads:[~2020-07-28  6:25 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-25  0:40 [PATCH] proc,fcntl: introduce F_SET_DESCRIPTION Pascal Bouchareine
2020-07-25  4:59 ` [PATCH v2] " Pascal Bouchareine
2020-07-25  5:15   ` [PATCH v3] This command attaches a description to a file descriptor for troubleshooting purposes. The free string is displayed in the process fdinfo file for that fd /proc/pid/fdinfo/fd Pascal Bouchareine
2020-07-26  2:11     ` Pascal Bouchareine
2020-07-25  5:22   ` [PATCH v3] proc,fcntl: introduce F_SET_DESCRIPTION Pascal Bouchareine
2020-07-27 14:21     ` Alexey Dobriyan
2020-07-28  1:39       ` Pascal Bouchareine
2020-07-28  6:25         ` Pascal Bouchareine [this message]
2020-07-25 22:10 ` [PATCH] " Al Viro
2020-07-26  1:42   ` Pascal Bouchareine

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