mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Peter Newman <peternewman@google.com>
To: reinette.chatre@intel.com, fenghua.yu@intel.com
Cc: Babu.Moger@amd.com, bp@alien8.de, dave.hansen@linux.intel.com,
	eranian@google.com, gupasani@google.com, hpa@zytor.com,
	james.morse@arm.com, linux-kernel@vger.kernel.org,
	mingo@redhat.com, skodak@google.com, tglx@linutronix.de,
	tony.luck@intel.com, x86@kernel.org,
	Peter Newman <peternewman@google.com>
Subject: [PATCH v5 3/3] Documentation/x86: Documentation for MON group move feature
Date: Thu, 30 Mar 2023 15:55:58 +0200	[thread overview]
Message-ID: <20230330135558.1019658-4-peternewman@google.com> (raw)
In-Reply-To: <20230330135558.1019658-1-peternewman@google.com>

Describe new support for moving MON groups to a new parent CTRL_MON
group and its restrictions.

Signed-off-by: Peter Newman <peternewman@google.com>
---
 Documentation/x86/resctrl.rst | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/x86/resctrl.rst b/Documentation/x86/resctrl.rst
index 387ccbcb558f..cb05d90111b4 100644
--- a/Documentation/x86/resctrl.rst
+++ b/Documentation/x86/resctrl.rst
@@ -287,6 +287,13 @@ Removing a directory will move all tasks and cpus owned by the group it
 represents to the parent. Removing one of the created CTRL_MON groups
 will automatically remove all MON groups below it.
 
+Moving MON group directories to a new parent CTRL_MON group is supported
+for the purpose of changing the resource allocations of a MON group
+without impacting its monitoring data or assigned tasks. This operation
+is not allowed for MON groups which monitor CPUs. No other move
+operation is currently allowed other than simply renaming a CTRL_MON or
+MON group.
+
 All groups contain the following files:
 
 "tasks":
-- 
2.40.0.348.gf938b09366-goog


  parent reply	other threads:[~2023-03-30 13:56 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-30 13:55 [PATCH v5 0/3] Subject: x86/resctrl: Implement rename to help move containers' tasks Peter Newman
2023-03-30 13:55 ` [PATCH v5 1/3] x86/resctrl: Factor rdtgroup lock for multi-file ops Peter Newman
2023-03-30 13:55 ` [PATCH v5 2/3] x86/resctrl: Implement rename op for mon groups Peter Newman
2023-04-18 21:52   ` Reinette Chatre
2023-04-19  9:38     ` Peter Newman
2023-04-19 16:11       ` Reinette Chatre
2023-03-30 13:55 ` Peter Newman [this message]
2023-03-30 17:33   ` [PATCH v5 3/3] Documentation/x86: Documentation for MON group move feature Moger, Babu
2023-03-31  8:12     ` Peter Newman
2023-03-31 20:51       ` Moger, Babu
2023-04-18 21:53   ` Reinette Chatre

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230330135558.1019658-4-peternewman@google.com \
    --to=peternewman@google.com \
    --cc=Babu.Moger@amd.com \
    --cc=bp@alien8.de \
    --cc=dave.hansen@linux.intel.com \
    --cc=eranian@google.com \
    --cc=fenghua.yu@intel.com \
    --cc=gupasani@google.com \
    --cc=hpa@zytor.com \
    --cc=james.morse@arm.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=reinette.chatre@intel.com \
    --cc=skodak@google.com \
    --cc=tglx@linutronix.de \
    --cc=tony.luck@intel.com \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®