From: Uros Bizjak <ubizjak@gmail.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Uros Bizjak <ubizjak@gmail.com>, Dennis Zhou <dennis@kernel.org>,
Tejun Heo <tj@kernel.org>, Christoph Lameter <cl@linux.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 1/3] percpu: Merge VERIFY_PERCPU_PTR() into its only user
Date: Mon, 21 Oct 2024 10:07:36 +0200 [thread overview]
Message-ID: <20241021080856.48746-1-ubizjak@gmail.com> (raw)
Merge VERIFY_PERCPU_PTR() into non-CONFIG_SMP per_cpu_ptr()
to make macro similar to CONFIG_SMP per_cpu_ptr(). This will
allow a follow-up patch to refactor common code to a macro.
No functional changes, non-CONFIG_SMP per_cpu_ptr() was
the only user of VERIFY_PERCPU_PTR().
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/percpu-defs.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 8efce7414fad..7fa88c5f4b26 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -254,13 +254,13 @@ do { \
#else /* CONFIG_SMP */
-#define VERIFY_PERCPU_PTR(__p) \
+#define per_cpu_ptr(ptr, cpu) \
({ \
- __verify_pcpu_ptr(__p); \
- (typeof(*(__p)) __kernel __force *)(__p); \
+ (void)(cpu); \
+ __verify_pcpu_ptr(ptr); \
+ (typeof(*(ptr)) __kernel __force *)(ptr); \
})
-#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); })
#define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0)
#define this_cpu_ptr(ptr) raw_cpu_ptr(ptr)
--
2.47.0
next reply other threads:[~2024-10-21 8:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-21 8:07 Uros Bizjak [this message]
2024-10-21 8:07 ` [PATCH 2/3] percpu: Introduce PERCPU_PTR() macro Uros Bizjak
2024-10-21 16:42 ` Christoph Lameter (Ampere)
2024-10-21 8:07 ` [PATCH 3/3] percpu: Cast percpu pointer in PERCPU_PTR() via unsigned long Uros Bizjak
2024-12-18 7:54 ` Gal Pressman
2024-12-18 8:40 ` Uros Bizjak
2024-12-18 8:46 ` Gal Pressman
2024-12-18 8:52 ` Uros Bizjak
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