From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com,
rostedt@goodmis.org, Christoph Hellwig <hch@infradead.org>,
"Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH v2 2/5] rcutorture: Remove SRCU-lite scenarios
Date: Tue, 1 Jul 2025 17:23:27 -0700 [thread overview]
Message-ID: <20250702002330.1074433-2-paulmck@kernel.org> (raw)
In-Reply-To: <2994ade2-bd06-4ba7-bcc9-be4d0d15ea0c@paulmck-laptop>
This commit prepares for the removal of SRCU-Lite by removing the SRCU-L
rcutorture scenario that tests it.
Both SRCU-lite and SRCU-fast provide faster readers by dropping the
smp_mb() call from their lock and unlock primitives, but incur a pair
of added RCU grace periods during the SRCU grace period. There is a
trivial mapping from the SRCU-lite API to that of SRCU-fast, so there
should be no transition issues.
[ paulmck: Apply Christoph Hellwig feedback. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
tools/testing/selftests/rcutorture/configs/rcu/CFLIST | 1 -
tools/testing/selftests/rcutorture/configs/rcu/SRCU-L | 10 ----------
.../selftests/rcutorture/configs/rcu/SRCU-L.boot | 3 ---
3 files changed, 14 deletions(-)
delete mode 100644 tools/testing/selftests/rcutorture/configs/rcu/SRCU-L
delete mode 100644 tools/testing/selftests/rcutorture/configs/rcu/SRCU-L.boot
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
index 45f572570a8c3..98b6175e5aa09 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
@@ -5,7 +5,6 @@ TREE04
TREE05
TREE07
TREE09
-SRCU-L
SRCU-N
SRCU-P
SRCU-T
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-L b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-L
deleted file mode 100644
index 3b4fa8dbef8a9..0000000000000
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-L
+++ /dev/null
@@ -1,10 +0,0 @@
-CONFIG_RCU_TRACE=n
-CONFIG_SMP=y
-CONFIG_NR_CPUS=6
-CONFIG_HOTPLUG_CPU=y
-CONFIG_PREEMPT_NONE=y
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=n
-#CHECK#CONFIG_RCU_EXPERT=n
-CONFIG_KPROBES=n
-CONFIG_FTRACE=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-L.boot b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-L.boot
deleted file mode 100644
index 0207b3138c5be..0000000000000
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-L.boot
+++ /dev/null
@@ -1,3 +0,0 @@
-rcutorture.torture_type=srcu
-rcutorture.reader_flavor=0x4
-rcutorture.fwd_progress=3
--
2.40.1
next prev parent reply other threads:[~2025-07-02 0:23 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-24 16:13 [PATCH 0/5] Remove SRCU-lite in favor of SRCU-fast Paul E. McKenney
2025-06-24 16:13 ` [PATCH 1/5] torture: Remove support for SRCU-lite Paul E. McKenney
2025-06-25 12:05 ` Christoph Hellwig
2025-06-26 10:54 ` Paul E. McKenney
2025-06-26 11:03 ` Christoph Hellwig
2025-06-26 14:37 ` Paul E. McKenney
2025-06-24 16:13 ` [PATCH 2/5] rcutorture: Remove SRCU-lite scenarios Paul E. McKenney
2025-06-24 16:13 ` [PATCH 3/5] rcutorture: Remove support for SRCU-lite Paul E. McKenney
2025-06-24 16:13 ` [PATCH 4/5] srcu: Remove SRCU-lite implementation Paul E. McKenney
2025-06-24 16:14 ` [PATCH 5/5] checkpatch: Remove SRCU-lite deprecation Paul E. McKenney
2025-07-02 0:23 ` [PATCH v2 0/5] Remove SRCU-lite in favor of SRCU-fast Paul E. McKenney
2025-07-02 0:23 ` [PATCH v2 1/5] torture: Remove support for SRCU-lite Paul E. McKenney
2025-07-02 0:23 ` Paul E. McKenney [this message]
2025-07-02 0:23 ` [PATCH v2 3/5] rcutorture: " Paul E. McKenney
2025-07-02 0:23 ` [PATCH v2 4/5] srcu: Remove SRCU-lite implementation Paul E. McKenney
2025-07-02 0:23 ` [PATCH v2 5/5] checkpatch: Remove SRCU-lite deprecation Paul E. McKenney
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=20250702002330.1074433-2-paulmck@kernel.org \
--to=paulmck@kernel.org \
--cc=hch@infradead.org \
--cc=kernel-team@meta.com \
--cc=linux-kernel@vger.kernel.org \
--cc=rcu@vger.kernel.org \
--cc=rostedt@goodmis.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.