Re: [PATCH] man/man5/proc_pid_fdinfo.5: document the ino field

Alejandro Colomar <[email protected]> Sat, 18 Jul 2026 14:03:57 +0200
Newsgroups	org.kernel.vger.linux-man
Message-ID	<altrcm5NL--VaUjl@devuan>
Hi Maja,

On 2026-07-16T16:51:07+0200, Maja Kądziołka wrote:
> Also expands the tabs into spaces where relevant, in order to ensure
> proper alignment between the fields when rendered by man.
> 
> Signed-off-by: Maja Kądziołka <[email protected]>
> Cc: Kalesh Singh <[email protected]>

Thanks!  I've split the commit in two: documenting that these fields
(especially, mnt_id) are decimal deserves a separate commit, with its
own commit message.


Have a lovely day!
Alex

> ---
>  man/man5/proc_pid_fdinfo.5 | 46 ++++++++++++++++++++++++--------------
>  1 file changed, 29 insertions(+), 17 deletions(-)
> 
> diff --git a/man/man5/proc_pid_fdinfo.5 b/man/man5/proc_pid_fdinfo.5
> index 93c6cf269f31..f93b69c6c59d 100644
> --- a/man/man5/proc_pid_fdinfo.5
> +++ b/man/man5/proc_pid_fdinfo.5
> @@ -24,6 +24,7 @@ For regular files and directories, we see something like:
>  pos:    1000
>  flags:  01002002
>  mnt_id: 21
> +ino:    63107
>  .EE
>  .in
>  .P
> @@ -51,9 +52,14 @@ rather than the current setting of the close-on-exec flag.
>  .I mnt_id
>  This field, present since Linux 3.15,
>  .\" commit 49d063cb353265c3af701bab215ac438ca7df36d
> -is the ID of the mount containing this file.
> +is the decimal ID of the mount containing this file.
>  See the description of
>  .IR /proc/ pid /mountinfo .
> +.TP
> +.I ino
> +This field, present since Linux 5.14,
> +.\" commit 3845f256a8b527127bfbd4ced21e93d9e89aa6d7
> +is the decimal inode number of the file.
>  .P
>  For eventfd file descriptors (see
>  .BR eventfd (2)),
> @@ -63,9 +69,10 @@ the following fields:
>  .P
>  .in +4n
>  .EX
> -pos:	0
> -flags:	02
> -mnt_id:	10
> +pos:    0
> +flags:  02
> +mnt_id: 10
> +ino:    63107
>  eventfd\-count:               40
>  .EE
>  .in
> @@ -81,9 +88,10 @@ the following fields:
>  .P
>  .in +4n
>  .EX
> -pos:	0
> -flags:	02
> -mnt_id:	10
> +pos:    0
> +flags:  02
> +mnt_id: 10
> +ino:    63107
>  tfd:        9 events:       19 data: 74253d2500000009
>  tfd:        7 events:       19 data: 74253d2500000007
>  .EE
> @@ -114,10 +122,11 @@ the following fields:
>  .P
>  .in +4n
>  .EX
> -pos:	0
> -flags:	02
> -mnt_id:	10
> -sigmask:	0000000000000006
> +pos:    0
> +flags:  02
> +mnt_id: 10
> +ino:    63107
> +sigmask:        0000000000000006
>  .EE
>  .in
>  .P
> @@ -138,9 +147,10 @@ the following fields:
>  .P
>  .in +4n
>  .EX
> -pos:	0
> -flags:	00
> -mnt_id:	11
> +pos:    0
> +flags:  00
> +mnt_id: 11
> +ino:    63107
>  inotify wd:2 ino:7ef82a sdev:800001 mask:800afff ignored_mask:0 fhandle\-bytes:8 fhandle\-type:1 f_handle:2af87e00220ffd73
>  inotify wd:1 ino:192627 sdev:800001 mask:800afff ignored_mask:0 fhandle\-bytes:8 fhandle\-type:1 f_handle:27261900802dfd73
>  .EE
> @@ -176,9 +186,10 @@ the following fields:
>  .P
>  .in +4n
>  .EX
> -pos:	0
> -flags:	02
> -mnt_id:	11
> +pos:    0
> +flags:  02
> +mnt_id: 11
> +ino:    63107
>  fanotify flags:0 event\-flags:88002
>  fanotify ino:19264f sdev:800001 mflags:0 mask:1 ignored_mask:0 fhandle\-bytes:8 fhandle\-type:1 f_handle:4f261900a82dfd73
>  .EE
> @@ -232,6 +243,7 @@ the following fields:
>  pos:    0
>  flags:  02004002
>  mnt_id: 13
> +ino:    63107
>  clockid: 0
>  ticks: 0
>  settime flags: 03
> -- 
> 2.54.0
> 
> 

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