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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, Manuel Ebner <manuelebner@mailbox.org>,
	"Paul E . McKenney" <paulmck@kernel.org>
Subject: [PATCH 04/10] doc: RCU: Adopt new coding style of type-aware kmalloc-family - part 2/2
Date: Wed, 15 Jul 2026 17:23:33 -0700	[thread overview]
Message-ID: <20260716002339.11717-4-paulmck@kernel.org> (raw)
In-Reply-To: <bc69cc01-509e-43f8-a46a-d77946e7adc7@paulmck-laptop>

From: Manuel Ebner <manuelebner@mailbox.org>

Update Documentation/RCU/* to suggest using the new type-aware
kmalloc_obj() per commit 2932ba8d9c99 ("slab: Introduce kmalloc_obj()
and family")

p = kmalloc(...);
 -> p = kmalloc_obj(...);

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 Documentation/RCU/rcu_dereference.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/RCU/rcu_dereference.rst b/Documentation/RCU/rcu_dereference.rst
index 2524dcdadde2b8..5bc3785ebfc2ae 100644
--- a/Documentation/RCU/rcu_dereference.rst
+++ b/Documentation/RCU/rcu_dereference.rst
@@ -236,7 +236,7 @@ precautions.  To see this, consider the following code fragment::
 	{
 		struct foo *p;
 
-		p = kmalloc(...);
+		p = kmalloc_obj(*p);
 		if (p == NULL)
 			deal_with_it();
 		p->a = 42;  /* Each field in its own cache line. */
@@ -293,7 +293,7 @@ Then one approach is to use locking, for example, as follows::
 	{
 		struct foo *p;
 
-		p = kmalloc(...);
+		p = kmalloc_obj(*p);
 		if (p == NULL)
 			deal_with_it();
 		spin_lock(&p->lock);
-- 
2.40.1


  parent reply	other threads:[~2026-07-16  0:23 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-16  0:23 [PATCH 0/10] Miscellaneous RCU updates for v7.3 Paul E. McKenney
2026-07-16  0:23 ` [PATCH 01/10] rcu-tasks: TASKS_TRACE_RCU doesn't need IRQ_WORK Paul E. McKenney
2026-07-16  0:23 ` [PATCH 02/10] rcu: Use task_state_to_char() in stall-warning prints Paul E. McKenney
2026-07-16  0:23 ` [PATCH 03/10] rcu: Mark __rcu_access_pointer() as context_unsafe() Paul E. McKenney
2026-07-16  0:23 ` Paul E. McKenney [this message]
2026-07-16  0:23 ` [PATCH 05/10] rcu-tasks: Remove unused struct rcu_tasks's->n_ipis_fails variables Paul E. McKenney
2026-07-16  0:23 ` [PATCH 06/10] rcu-tasks: Dump rcu tasks status when the boot-test failed Paul E. McKenney
2026-07-16  0:23 ` [PATCH 07/10] doc: RCU: Fix brackets Paul E. McKenney
2026-07-16  0:23 ` [PATCH 08/10] rcu-tasks: Apply READ_ONCE() and WRITE_ONCE() to fix data race Paul E. McKenney
2026-07-16  0:23 ` [PATCH 09/10] rcu-tasks: Remove smp_mb() in rcu_spawn_tasks_kthread_generic() Paul E. McKenney
2026-07-16  0:23 ` [PATCH 10/10] rcu-tasks: Update comments in call_rcu_tasks_generic() Paul E. McKenney

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