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From: guoren@kernel.org
To: palmer@rivosinc.com, heiko@sntech.de, hch@infradead.org,
	arnd@arndb.de, peterz@infradead.org, will@kernel.org,
	boqun.feng@gmail.com, longman@redhat.com, shorne@gmail.com,
	conor.dooley@microchip.com
Cc: linux-csky@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	Guo Ren <guoren@linux.alibaba.com>, Guo Ren <guoren@kernel.org>
Subject: [PATCH V9 05/15] asm-generic: spinlock: Add queued spinlock support in common header
Date: Mon,  8 Aug 2022 03:13:08 -0400	[thread overview]
Message-ID: <20220808071318.3335746-6-guoren@kernel.org> (raw)
In-Reply-To: <20220808071318.3335746-1-guoren@kernel.org>

From: Guo Ren <guoren@linux.alibaba.com>

Select queued spinlock or ticket lock by CONFIG_QUEUED_SPINLOCKS in
the common header file. Define smp_mb__after_spinlock with smp_mb()
as default.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
---
 include/asm-generic/spinlock.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/asm-generic/spinlock.h b/include/asm-generic/spinlock.h
index 6f5a1b838ca2..349cdb46a99c 100644
--- a/include/asm-generic/spinlock.h
+++ b/include/asm-generic/spinlock.h
@@ -3,7 +3,11 @@
 #ifndef __ASM_GENERIC_SPINLOCK_H
 #define __ASM_GENERIC_SPINLOCK_H
 
+#ifdef CONFIG_QUEUED_SPINLOCKS
+#include <asm-generic/qspinlock.h>
+#else
 #include <asm-generic/ticket_spinlock.h>
+#endif
 #include <asm/qrwlock.h>
 
 /* See include/linux/spinlock.h */
-- 
2.36.1


  parent reply	other threads:[~2022-08-08  7:14 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-08  7:13 [PATCH V9 00/15] arch: Add qspinlock support and atomic cleanup guoren
2022-08-08  7:13 ` [PATCH V9 01/15] asm-generic: ticket-lock: Remove unnecessary atomic_read guoren
2022-08-08  7:13 ` [PATCH V9 02/15] asm-generic: ticket-lock: Use the same struct definitions with qspinlock guoren
2022-08-08  7:13 ` [PATCH V9 03/15] asm-generic: ticket-lock: Move into ticket_spinlock.h guoren
2022-08-08  7:13 ` [PATCH V9 04/15] asm-generic: ticket-lock: Keep ticket-lock the same semantic with qspinlock guoren
2022-08-08  7:13 ` guoren [this message]
2022-08-08  7:13 ` [PATCH V9 06/15] riscv: atomic: Clean up unnecessary acquire and release definitions guoren
2022-08-08  7:13 ` [PATCH V9 07/15] riscv: cmpxchg: Remove xchg32 and xchg64 guoren
2022-08-08  7:13 ` [PATCH V9 08/15] riscv: cmpxchg: Forbid arch_cmpxchg64 for 32-bit guoren
2022-08-08  7:13 ` [PATCH V9 09/15] riscv: cmpxchg: Optimize cmpxchg64 guoren
2022-08-08  7:13 ` [PATCH V9 10/15] riscv: Enable ARCH_INLINE_READ*/WRITE*/SPIN* guoren
2022-08-08  7:13 ` [PATCH V9 11/15] riscv: Add qspinlock support guoren
2022-08-08  7:13 ` [PATCH V9 12/15] riscv: Add combo spinlock support guoren
2022-08-08  7:13 ` [PATCH V9 13/15] openrisc: cmpxchg: Cleanup unnecessary codes guoren
2022-08-08  7:13 ` [PATCH V9 14/15] openrisc: Move from ticket-lock to qspinlock guoren
2022-08-08  7:13 ` [PATCH V9 15/15] csky: spinlock: Use the generic header files guoren
2022-08-08  7:25 ` [PATCH V9 00/15] arch: Add qspinlock support and atomic cleanup Guo Ren

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