* [PATCH v5 2/4] proc_pid_fdinfo.5: Make pid clearer in the name and 1st paragraph
2024-12-06 7:38 [PATCH v5 1/4] proc_pid_fdinfo.5: Reduce indent for most of the page Ian Rogers
@ 2024-12-06 7:38 ` Ian Rogers
2024-12-06 15:19 ` Alejandro Colomar
2024-12-06 7:38 ` [PATCH v5 3/4] proc_pid_fdinfo.5: Add subsection headers for different fd types Ian Rogers
` (2 subsequent siblings)
3 siblings, 1 reply; 7+ messages in thread
From: Ian Rogers @ 2024-12-06 7:38 UTC (permalink / raw)
To: Alejandro Colomar, G . Branden Robinson
Cc: David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard,
Thomas Zimmermann, Jonathan Corbet, dri-devel, linux-doc,
linux-kernel, linux-man, Ian Rogers
Previously the pid was highlighted through being a tagged paragraph
but not mentioned in the description. Add italics to the path
emphasizing pid and then change the first sentence to include pid in
the definition.
Suggested-by: G. Branden Robinson <g.branden.robinson@gmail.com>
---
v5. Switch .IR pid to .I pid
---
man/man5/proc_pid_fdinfo.5 | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/man/man5/proc_pid_fdinfo.5 b/man/man5/proc_pid_fdinfo.5
index 1c6c38423..2797ae216 100644
--- a/man/man5/proc_pid_fdinfo.5
+++ b/man/man5/proc_pid_fdinfo.5
@@ -6,10 +6,11 @@
.\"
.TH proc_pid_fdinfo 5 (date) "Linux man-pages (unreleased)"
.SH NAME
-/proc/pid/fdinfo/ \- information about file descriptors
+.IR /proc/ pid /fdinfo " \- information about file descriptors"
.SH DESCRIPTION
-This is a subdirectory containing one entry for each file which the
-process has open, named by its file descriptor.
+This subdirectory contains one entry for each file that process
+.I pid
+has open, named by its file descriptor.
The files in this directory are readable only by the owner of the process.
The contents of each file can be read to obtain information
about the corresponding file descriptor.
--
2.47.0.338.g60cca15819-goog
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH v5 2/4] proc_pid_fdinfo.5: Make pid clearer in the name and 1st paragraph
2024-12-06 7:38 ` [PATCH v5 2/4] proc_pid_fdinfo.5: Make pid clearer in the name and 1st paragraph Ian Rogers
@ 2024-12-06 15:19 ` Alejandro Colomar
0 siblings, 0 replies; 7+ messages in thread
From: Alejandro Colomar @ 2024-12-06 15:19 UTC (permalink / raw)
To: Ian Rogers
Cc: G . Branden Robinson, David Airlie, Simona Vetter,
Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann,
Jonathan Corbet, dri-devel, linux-doc, linux-kernel, linux-man
[-- Attachment #1: Type: text/plain, Size: 1686 bytes --]
Hi Ian,
On Thu, Dec 05, 2024 at 11:38:26PM -0800, Ian Rogers wrote:
> Previously the pid was highlighted through being a tagged paragraph
> but not mentioned in the description. Add italics to the path
> emphasizing pid and then change the first sentence to include pid in
> the definition.
>
> Suggested-by: G. Branden Robinson <g.branden.robinson@gmail.com>
I'm going to reject this patch at the moment. But I'd like to revisit
this patch in the future, so please resend (rebased) in half a year or
so (ideally after the release of groff-1.24.0).
Cheers,
Alex
> ---
> v5. Switch .IR pid to .I pid
> ---
> man/man5/proc_pid_fdinfo.5 | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/man/man5/proc_pid_fdinfo.5 b/man/man5/proc_pid_fdinfo.5
> index 1c6c38423..2797ae216 100644
> --- a/man/man5/proc_pid_fdinfo.5
> +++ b/man/man5/proc_pid_fdinfo.5
> @@ -6,10 +6,11 @@
> .\"
> .TH proc_pid_fdinfo 5 (date) "Linux man-pages (unreleased)"
> .SH NAME
> -/proc/pid/fdinfo/ \- information about file descriptors
> +.IR /proc/ pid /fdinfo " \- information about file descriptors"
> .SH DESCRIPTION
> -This is a subdirectory containing one entry for each file which the
> -process has open, named by its file descriptor.
> +This subdirectory contains one entry for each file that process
> +.I pid
> +has open, named by its file descriptor.
> The files in this directory are readable only by the owner of the process.
> The contents of each file can be read to obtain information
> about the corresponding file descriptor.
> --
> 2.47.0.338.g60cca15819-goog
>
--
<https://www.alejandro-colomar.es/>
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v5 3/4] proc_pid_fdinfo.5: Add subsection headers for different fd types
2024-12-06 7:38 [PATCH v5 1/4] proc_pid_fdinfo.5: Reduce indent for most of the page Ian Rogers
2024-12-06 7:38 ` [PATCH v5 2/4] proc_pid_fdinfo.5: Make pid clearer in the name and 1st paragraph Ian Rogers
@ 2024-12-06 7:38 ` Ian Rogers
2024-12-06 15:20 ` Alejandro Colomar
2024-12-06 7:38 ` [PATCH v5 4/4] proc_pid_fdinfo.5: Add DRM subsection Ian Rogers
2024-12-06 15:16 ` [PATCH v5 1/4] proc_pid_fdinfo.5: Reduce indent for most of the page Alejandro Colomar
3 siblings, 1 reply; 7+ messages in thread
From: Ian Rogers @ 2024-12-06 7:38 UTC (permalink / raw)
To: Alejandro Colomar, G . Branden Robinson
Cc: David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard,
Thomas Zimmermann, Jonathan Corbet, dri-devel, linux-doc,
linux-kernel, linux-man, Ian Rogers
Make the sections about eventfd, epoll, signalfd, inotify, fanotify,
timerfd better separated with a clearer subsection header.
---
man/man5/proc_pid_fdinfo.5 | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/man/man5/proc_pid_fdinfo.5 b/man/man5/proc_pid_fdinfo.5
index 2797ae216..c4914f1f3 100644
--- a/man/man5/proc_pid_fdinfo.5
+++ b/man/man5/proc_pid_fdinfo.5
@@ -57,6 +57,7 @@ is the ID of the mount containing this file.
See the description of
.IR /proc/ pid /mountinfo .
.RE
+.SS eventfd
.P
For eventfd file descriptors (see
.BR eventfd (2)),
@@ -75,6 +76,7 @@ eventfd\-count: 40
.P
.I eventfd\-count
is the current value of the eventfd counter, in hexadecimal.
+.SS epoll
.P
For epoll file descriptors (see
.BR epoll (7)),
@@ -108,6 +110,7 @@ descriptor.
The
.I data
field is the data value associated with this file descriptor.
+.SS signalfd
.P
For signalfd file descriptors (see
.BR signalfd (2)),
@@ -133,6 +136,7 @@ and
.BR SIGQUIT ;
see
.BR signal (7).)
+.SS inotify
.P
For inotify file descriptors (see
.BR inotify (7)),
@@ -173,6 +177,7 @@ file is exposed as a file handle, via three hexadecimal fields:
.IR fhandle\-type ,
and
.IR f_handle .
+.SS fanotify
.P
For fanotify file descriptors (see
.BR fanotify (7)),
@@ -229,6 +234,7 @@ The mask of events that are ignored for this mark
.P
For details on these fields, see
.BR fanotify_mark (2).
+.SS timerfd
.P
For timerfd file descriptors (see
.BR timerfd (2)),
--
2.47.0.338.g60cca15819-goog
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v5 3/4] proc_pid_fdinfo.5: Add subsection headers for different fd types
2024-12-06 7:38 ` [PATCH v5 3/4] proc_pid_fdinfo.5: Add subsection headers for different fd types Ian Rogers
@ 2024-12-06 15:20 ` Alejandro Colomar
0 siblings, 0 replies; 7+ messages in thread
From: Alejandro Colomar @ 2024-12-06 15:20 UTC (permalink / raw)
To: Ian Rogers
Cc: G . Branden Robinson, David Airlie, Simona Vetter,
Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann,
Jonathan Corbet, dri-devel, linux-doc, linux-kernel, linux-man
[-- Attachment #1: Type: text/plain, Size: 1912 bytes --]
Hi Ian,
On Thu, Dec 05, 2024 at 11:38:27PM -0800, Ian Rogers wrote:
> Make the sections about eventfd, epoll, signalfd, inotify, fanotify,
> timerfd better separated with a clearer subsection header.
> ---
> man/man5/proc_pid_fdinfo.5 | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/man/man5/proc_pid_fdinfo.5 b/man/man5/proc_pid_fdinfo.5
> index 2797ae216..c4914f1f3 100644
> --- a/man/man5/proc_pid_fdinfo.5
> +++ b/man/man5/proc_pid_fdinfo.5
> @@ -57,6 +57,7 @@ is the ID of the mount containing this file.
> See the description of
> .IR /proc/ pid /mountinfo .
> .RE
> +.SS eventfd
> .P
.P after .SS is redundant, and triggers a warning. Please remove them.
Cheers,
Alex
> For eventfd file descriptors (see
> .BR eventfd (2)),
> @@ -75,6 +76,7 @@ eventfd\-count: 40
> .P
> .I eventfd\-count
> is the current value of the eventfd counter, in hexadecimal.
> +.SS epoll
> .P
> For epoll file descriptors (see
> .BR epoll (7)),
> @@ -108,6 +110,7 @@ descriptor.
> The
> .I data
> field is the data value associated with this file descriptor.
> +.SS signalfd
> .P
> For signalfd file descriptors (see
> .BR signalfd (2)),
> @@ -133,6 +136,7 @@ and
> .BR SIGQUIT ;
> see
> .BR signal (7).)
> +.SS inotify
> .P
> For inotify file descriptors (see
> .BR inotify (7)),
> @@ -173,6 +177,7 @@ file is exposed as a file handle, via three hexadecimal fields:
> .IR fhandle\-type ,
> and
> .IR f_handle .
> +.SS fanotify
> .P
> For fanotify file descriptors (see
> .BR fanotify (7)),
> @@ -229,6 +234,7 @@ The mask of events that are ignored for this mark
> .P
> For details on these fields, see
> .BR fanotify_mark (2).
> +.SS timerfd
> .P
> For timerfd file descriptors (see
> .BR timerfd (2)),
> --
> 2.47.0.338.g60cca15819-goog
>
--
<https://www.alejandro-colomar.es/>
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v5 4/4] proc_pid_fdinfo.5: Add DRM subsection
2024-12-06 7:38 [PATCH v5 1/4] proc_pid_fdinfo.5: Reduce indent for most of the page Ian Rogers
2024-12-06 7:38 ` [PATCH v5 2/4] proc_pid_fdinfo.5: Make pid clearer in the name and 1st paragraph Ian Rogers
2024-12-06 7:38 ` [PATCH v5 3/4] proc_pid_fdinfo.5: Add subsection headers for different fd types Ian Rogers
@ 2024-12-06 7:38 ` Ian Rogers
2024-12-06 15:16 ` [PATCH v5 1/4] proc_pid_fdinfo.5: Reduce indent for most of the page Alejandro Colomar
3 siblings, 0 replies; 7+ messages in thread
From: Ian Rogers @ 2024-12-06 7:38 UTC (permalink / raw)
To: Alejandro Colomar, G . Branden Robinson
Cc: David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard,
Thomas Zimmermann, Jonathan Corbet, dri-devel, linux-doc,
linux-kernel, linux-man, Ian Rogers
Add description of DRM fdinfo information based on the Linux kernel's
`Documentation/gpu/drm-usage-stats.rst`:
https://docs.kernel.org/gpu/drm-usage-stats.html
---
v5. Update style a suggested-by G. Branden Robinson
<g.branden.robinson@gmail.com>
---
man/man5/proc_pid_fdinfo.5 | 107 +++++++++++++++++++++++++++++++++++++
1 file changed, 107 insertions(+)
diff --git a/man/man5/proc_pid_fdinfo.5 b/man/man5/proc_pid_fdinfo.5
index c4914f1f3..bb77ee9a7 100644
--- a/man/man5/proc_pid_fdinfo.5
+++ b/man/man5/proc_pid_fdinfo.5
@@ -300,6 +300,113 @@ fields contain the values that
.BR timerfd_gettime (2)
on this file descriptor would return.)
.RE
+.SS Direct Rendering Manager
+.P
+DRM drivers can optionally choose to expose usage stats through
+/proc/pid/fdinfo/. For example:
+.P
+.in +4n
+.EX
+pos: 0
+flags: 02100002
+mnt_id: 26
+ino: 284
+drm-driver: i915
+drm-client-id: 39
+drm-pdev: 0000:00:02.0
+drm-total-system0: 6044 KiB
+drm-shared-system0: 0
+drm-active-system0: 0
+drm-resident-system0: 6044 KiB
+drm-purgeable-system0: 1688 KiB
+drm-total-stolen-system0: 0
+drm-shared-stolen-system0: 0
+drm-active-stolen-system0: 0
+drm-resident-stolen-system0: 0
+drm-purgeable-stolen-system0: 0
+drm-engine-render: 346249 ns
+drm-engine-copy: 0 ns
+drm-engine-video: 0 ns
+drm-engine-capacity-video: 2
+drm-engine-video-enhance: 0 ns
+.EE
+.TP
+.BR drm\-driver: " .+ (mandatory)"
+The name this driver registered.
+.TP
+.BR drm\-pdev: " [0-9A-F]{4}:[0-9A-F]{2}:[0-9A-F]{2}.[0-9A-F]"
+For PCI devices this should contain the PCI slot address of the device
+in question.
+.TP
+.BR drm\-client-id: " [0-9]+"
+Unique value relating to the open DRM file descriptor used to
+distinguish duplicated and shared file descriptors.
+.P
+GPUs usually contain multiple execution engines. Each shall be given a
+stable and unique name
+.IR engine-name ,
+with possible values documented in the driver specific documentation.
+.TP
+.BI drm\-engine\- engine-name :\c
+\& [0-9]+ ns
+GPU engine utilization, time spent busy executing workloads for this client.
+.TP
+.BI drm\-engine\-capacity\- engine-name :\c
+\& [0-9]+
+Capacity of the engine if not 1, cannot be 0.
+.TP
+.BI drm\-cycles\- engine-name :\c
+\& [0-9]+
+Contains the number of busy cycles for the given engine. Values are
+not required to be constantly monotonic, but are required to catch up
+with the previously reported larger value within a reasonable
+period. Upon observing a value lower than what was previously read,
+userspace is expected to stay with that larger previous value until a
+monotonic update is seen.
+.TP
+.BI drm\-total\-cycles\- engine-name :\c
+\& [0-9]+
+Contains the total number cycles for the given engine. This is a
+timestamp in GPU unspecified unit that matches the update rate of
+drm\-cycles\-\fIengine-name\fP.
+For drivers that implement this interface,
+the engine utilization can be calculated entirely on the GPU clock
+domain, without considering the CPU sleep time between 2 samples.
+.P
+Each possible memory type which can be used to store buffer objects by
+the GPU in question shall be given a stable and unique name
+.IR region .
+The name "memory" is reserved to refer to normal system memory.
+.TP
+.BI drm\-memory\- region :\c
+\& [0-9]+ [KiB|MiB]
+The amount of storage currently consumed by the buffer objects belong
+to this client, in the respective memory region.
+.IP
+Default unit shall be bytes with optional unit specifiers of 'KiB' or 'MiB'
+indicating kibi- or mebi-bytes.
+.TP
+.BI drm\-shared\- region :\c
+\& [0-9]+ [KiB|MiB]
+The total size of buffers that are shared with another file (e.g., have more
+than a single handle).
+.TP
+.BI drm\-total\- region :\c
+\& [0-9]+ [KiB|MiB]
+The total size of buffers that including shared and private memory.
+.TP
+.BI drm\-resident\- region :\c
+\& [0-9]+ [KiB|MiB]
+The total size of buffers that are resident in the specified region.
+.TP
+.BI drm\-purgeable\- region :\c
+\& [0-9]+ [KiB|MiB]
+The total size of buffers that are purgeable.
+.TP
+.BI drm\-active\- region :\c
+\& [0-9]+ [KiB|MiB]
+The total size of buffers that are active on one or more engines.
+
.SH HISTORY
Linux 2.6.22.
.SH SEE ALSO
--
2.47.0.338.g60cca15819-goog
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH v5 1/4] proc_pid_fdinfo.5: Reduce indent for most of the page
2024-12-06 7:38 [PATCH v5 1/4] proc_pid_fdinfo.5: Reduce indent for most of the page Ian Rogers
` (2 preceding siblings ...)
2024-12-06 7:38 ` [PATCH v5 4/4] proc_pid_fdinfo.5: Add DRM subsection Ian Rogers
@ 2024-12-06 15:16 ` Alejandro Colomar
3 siblings, 0 replies; 7+ messages in thread
From: Alejandro Colomar @ 2024-12-06 15:16 UTC (permalink / raw)
To: Ian Rogers
Cc: G . Branden Robinson, David Airlie, Simona Vetter,
Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann,
Jonathan Corbet, dri-devel, linux-doc, linux-kernel, linux-man
[-- Attachment #1: Type: text/plain, Size: 6532 bytes --]
Hi Ian,
On Thu, Dec 05, 2024 at 11:38:25PM -0800, Ian Rogers wrote:
> When /proc/pid/fdinfo was part of proc.5 man page the indentation made
> sense. As a standalone man page the indentation doesn't need to be so
> far over to the right. Remove the initial tagged pragraph, move the
> "since Linux 2.6.22" to a new history subsection.
>
> Suggested-by: G. Branden Robinson <g.branden.robinson@gmail.com>
Thanks! I've applied it, and amended with some minor tweaks.
<https://www.alejandro-colomar.es/src/alx/linux/man-pages/man-pages.git/commit/?h=contrib&id=d70b07b4f820ad801f57952cae984c07d73dee1c>
Have a lovely day!
Alex
> ---
> v5. Remove the word Since.
> v4. Since from Alejandro Colomar <alx@kernel.org> review comment.
> ---
> man/man5/proc_pid_fdinfo.5 | 51 +++++++++++++++++++-------------------
> 1 file changed, 25 insertions(+), 26 deletions(-)
>
> diff --git a/man/man5/proc_pid_fdinfo.5 b/man/man5/proc_pid_fdinfo.5
> index 1e23bbe02..1c6c38423 100644
> --- a/man/man5/proc_pid_fdinfo.5
> +++ b/man/man5/proc_pid_fdinfo.5
> @@ -8,8 +8,6 @@
> .SH NAME
> /proc/pid/fdinfo/ \- information about file descriptors
> .SH DESCRIPTION
> -.TP
> -.IR /proc/ pid /fdinfo/ " (since Linux 2.6.22)"
> This is a subdirectory containing one entry for each file which the
> process has open, named by its file descriptor.
> The files in this directory are readable only by the owner of the process.
> @@ -17,9 +15,9 @@ The contents of each file can be read to obtain information
> about the corresponding file descriptor.
> The content depends on the type of file referred to by the
> corresponding file descriptor.
> -.IP
> +.P
> For regular files and directories, we see something like:
> -.IP
> +.P
> .in +4n
> .EX
> .RB "$" " cat /proc/12015/fdinfo/4"
> @@ -28,7 +26,7 @@ flags: 01002002
> mnt_id: 21
> .EE
> .in
> -.IP
> +.P
> The fields are as follows:
> .RS
> .TP
> @@ -51,7 +49,6 @@ this field incorrectly displayed the setting of
> at the time the file was opened,
> rather than the current setting of the close-on-exec flag.
> .TP
> -.I
> .I mnt_id
> This field, present since Linux 3.15,
> .\" commit 49d063cb353265c3af701bab215ac438ca7df36d
> @@ -59,13 +56,13 @@ is the ID of the mount containing this file.
> See the description of
> .IR /proc/ pid /mountinfo .
> .RE
> -.IP
> +.P
> For eventfd file descriptors (see
> .BR eventfd (2)),
> we see (since Linux 3.8)
> .\" commit cbac5542d48127b546a23d816380a7926eee1c25
> the following fields:
> -.IP
> +.P
> .in +4n
> .EX
> pos: 0
> @@ -74,16 +71,16 @@ mnt_id: 10
> eventfd\-count: 40
> .EE
> .in
> -.IP
> +.P
> .I eventfd\-count
> is the current value of the eventfd counter, in hexadecimal.
> -.IP
> +.P
> For epoll file descriptors (see
> .BR epoll (7)),
> we see (since Linux 3.8)
> .\" commit 138d22b58696c506799f8de759804083ff9effae
> the following fields:
> -.IP
> +.P
> .in +4n
> .EX
> pos: 0
> @@ -93,7 +90,7 @@ tfd: 9 events: 19 data: 74253d2500000009
> tfd: 7 events: 19 data: 74253d2500000007
> .EE
> .in
> -.IP
> +.P
> Each of the lines beginning
> .I tfd
> describes one of the file descriptors being monitored via
> @@ -110,13 +107,13 @@ descriptor.
> The
> .I data
> field is the data value associated with this file descriptor.
> -.IP
> +.P
> For signalfd file descriptors (see
> .BR signalfd (2)),
> we see (since Linux 3.8)
> .\" commit 138d22b58696c506799f8de759804083ff9effae
> the following fields:
> -.IP
> +.P
> .in +4n
> .EX
> pos: 0
> @@ -125,7 +122,7 @@ mnt_id: 10
> sigmask: 0000000000000006
> .EE
> .in
> -.IP
> +.P
> .I sigmask
> is the hexadecimal mask of signals that are accepted via this
> signalfd file descriptor.
> @@ -135,12 +132,12 @@ and
> .BR SIGQUIT ;
> see
> .BR signal (7).)
> -.IP
> +.P
> For inotify file descriptors (see
> .BR inotify (7)),
> we see (since Linux 3.8)
> the following fields:
> -.IP
> +.P
> .in +4n
> .EX
> pos: 0
> @@ -150,7 +147,7 @@ inotify wd:2 ino:7ef82a sdev:800001 mask:800afff ignored_mask:0 fhandle\-bytes:8
> inotify wd:1 ino:192627 sdev:800001 mask:800afff ignored_mask:0 fhandle\-bytes:8 fhandle\-type:1 f_handle:27261900802dfd73
> .EE
> .in
> -.IP
> +.P
> Each of the lines beginning with "inotify" displays information about
> one file or directory that is being monitored.
> The fields in this line are as follows:
> @@ -168,19 +165,19 @@ The ID of the device where the target file resides (in hexadecimal).
> .I mask
> The mask of events being monitored for the target file (in hexadecimal).
> .RE
> -.IP
> +.P
> If the kernel was built with exportfs support, the path to the target
> file is exposed as a file handle, via three hexadecimal fields:
> .IR fhandle\-bytes ,
> .IR fhandle\-type ,
> and
> .IR f_handle .
> -.IP
> +.P
> For fanotify file descriptors (see
> .BR fanotify (7)),
> we see (since Linux 3.8)
> the following fields:
> -.IP
> +.P
> .in +4n
> .EX
> pos: 0
> @@ -190,7 +187,7 @@ 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
> .in
> -.IP
> +.P
> The fourth line displays information defined when the fanotify group
> was created via
> .BR fanotify_init (2):
> @@ -210,7 +207,7 @@ argument given to
> .BR fanotify_init (2)
> (expressed in hexadecimal).
> .RE
> -.IP
> +.P
> Each additional line shown in the file contains information
> about one of the marks in the fanotify group.
> Most of these fields are as for inotify, except:
> @@ -228,16 +225,16 @@ The events mask for this mark
> The mask of events that are ignored for this mark
> (expressed in hexadecimal).
> .RE
> -.IP
> +.P
> For details on these fields, see
> .BR fanotify_mark (2).
> -.IP
> +.P
> For timerfd file descriptors (see
> .BR timerfd (2)),
> we see (since Linux 3.17)
> .\" commit af9c4957cf212ad9cf0bee34c95cb11de5426e85
> the following fields:
> -.IP
> +.P
> .in +4n
> .EX
> pos: 0
> @@ -296,5 +293,7 @@ fields contain the values that
> .BR timerfd_gettime (2)
> on this file descriptor would return.)
> .RE
> +.SH HISTORY
> +Linux 2.6.22.
> .SH SEE ALSO
> .BR proc (5)
> --
> 2.47.0.338.g60cca15819-goog
>
>
--
<https://www.alejandro-colomar.es/>
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