Hi Matteo,
On Tue, May 14, 2024 at 10:28:19PM GMT, technoboy85@xxxxxxxxx wrote:
> From: Matteo Croce <teknoraver@xxxxxxxx>
>
> The 'subset=pid' option was added in commit 6814ef2d, document it.
> This option mounts a procfs where only the numeric directories related
> to the PIDs are present.
>
> # mount -t proc proc_pid pid -o subset=pid
> # mount |grep -w proc_pid
> proc_pid on /tmp/proc/pid type proc (rw,relatime,subset=pid)
>
> # ll -d pid/{1,$$,cmdline,version}
> ls: cannot access 'pid/cmdline': No such file or directory
> ls: cannot access 'pid/version': No such file or directory
> dr-xr-xr-x. 9 root root 0 May 14 09:43 pid/1
> dr-xr-xr-x. 9 root root 0 May 14 09:43 pid/25146
>
> The only non-numeric entries in that procfs instance are
> 'self' and 'thread-self':
>
> # ls pid |grep -vx '[[:digit:]]*'
> self
> thread-self
> #
>
> Signed-off-by: Matteo Croce <teknoraver@xxxxxxxx>
I've applied the patch, with minor fixes (grep for 'semantic newlines'
in man-pages(7)), such as a comma, and different line breaks.
<https://www.alejandro-colomar.es/src/alx/linux/man-pages/man-pages.git/commit/?h=contrib&id=dd465607bc5817819f1e90eb66468e7d9cf9e0b1>
Have a lovely night!
Alex
> ---
> man/man5/proc.5 | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/man/man5/proc.5 b/man/man5/proc.5
> index 8022ca49e..cdb4aa859 100644
> --- a/man/man5/proc.5
> +++ b/man/man5/proc.5
> @@ -105,7 +105,12 @@ This group should be used instead of approaches such as putting
> nonroot users into the
> .BR sudoers (5)
> file.
> -.\"
> +.RE
> +.TP
> +.BR subset = pid " (since Linux 5.8)"
> +.\" commit 6814ef2d992af09451bbeda4770daa204461329e
> +Show only the specified subset of procfs hiding all top level files
> +and directories in the procfs that are not related to tasks.
> .SS Overview
> Underneath
> .IR /proc ,
> --
> 2.43.0
>
--
<https://www.alejandro-colomar.es/>
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