LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: Peter Zijlstra <peterz@infradead.org>,
	"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
	Boqun Feng <boqun.feng@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Andy Lutomirski <luto@amacapital.net>,
	Dave Watson <davejwatson@fb.com>, Paul Turner <pjt@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Russell King <linux@arm.linux.org.uk>,
	Ingo Molnar <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>,
	Andi Kleen <andi@firstfloor.org>, Chris Lameter <cl@linux.com>,
	Ben Maurer <bmaurer@fb.com>, Steven Rostedt <rostedt@goodmis.org>,
	Josh Triplett <josh@joshtriplett.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Joel Fernandes <joelaf@google.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Shuah Khan <shuah@kernel.org>,
	linux-kselftest@vger.kernel.org
Subject: [RFC PATCH for 4.21 11/16] cpu-opv/selftests: Provide cpu-op library
Date: Thu,  1 Nov 2018 10:58:39 +0100
Message-ID: <20181101095844.24462-12-mathieu.desnoyers@efficios.com> (raw)
In-Reply-To: <20181101095844.24462-1-mathieu.desnoyers@efficios.com>

This cpu-op helper library provides a user-space API to the cpu_opv()
system call.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Watson <davejwatson@fb.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: linux-kselftest@vger.kernel.org
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Chris Lameter <cl@linux.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Maurer <bmaurer@fb.com>
Cc: linux-api@vger.kernel.org
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
---
 tools/testing/selftests/cpu-opv/cpu-op.c | 362 +++++++++++++++++++++++++++++++
 tools/testing/selftests/cpu-opv/cpu-op.h |  43 ++++
 2 files changed, 405 insertions(+)
 create mode 100644 tools/testing/selftests/cpu-opv/cpu-op.c
 create mode 100644 tools/testing/selftests/cpu-opv/cpu-op.h

diff --git a/tools/testing/selftests/cpu-opv/cpu-op.c b/tools/testing/selftests/cpu-opv/cpu-op.c
new file mode 100644
index 000000000000..0cdc39bffbbf
--- /dev/null
+++ b/tools/testing/selftests/cpu-opv/cpu-op.c
@@ -0,0 +1,362 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * cpu-op.c
+ *
+ * Copyright (C) 2017 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <syscall.h>
+#include <assert.h>
+#include <signal.h>
+
+#include "cpu-op.h"
+
+#define ARRAY_SIZE(arr)	(sizeof(arr) / sizeof((arr)[0]))
+
+#define ACCESS_ONCE(x)		(*(__volatile__  __typeof__(x) *)&(x))
+#define WRITE_ONCE(x, v)	__extension__ ({ ACCESS_ONCE(x) = (v); })
+#define READ_ONCE(x)		ACCESS_ONCE(x)
+
+int cpu_opv(struct cpu_op *cpu_opv, int cpuopcnt, int cpu, int flags)
+{
+	return syscall(__NR_cpu_opv, cpu_opv, cpuopcnt, cpu, flags);
+}
+
+int cpu_op_get_current_cpu(void)
+{
+	int cpu;
+
+	cpu = sched_getcpu();
+	if (cpu < 0) {
+		perror("sched_getcpu()");
+		abort();
+	}
+	return cpu;
+}
+
+int cpu_op_cmpxchg(void *v, void *expect, void *old, void *n, size_t len,
+		   int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_MEMCPY_OP,
+			.len = len,
+			.u.memcpy_op.dst = (unsigned long)old,
+			.u.memcpy_op.src = (unsigned long)v,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+		[1] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = len,
+			.u.compare_op.a = (unsigned long)v,
+			.u.compare_op.b = (unsigned long)expect,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[2] = {
+			.op = CPU_MEMCPY_OP,
+			.len = len,
+			.u.memcpy_op.dst = (unsigned long)v,
+			.u.memcpy_op.src = (unsigned long)n,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_add(void *v, int64_t count, size_t len, int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_ADD_OP,
+			.len = len,
+			.u.arithmetic_op.p = (unsigned long)v,
+			.u.arithmetic_op.count = count,
+			.u.arithmetic_op.expect_fault_p = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_add_release(void *v, int64_t count, size_t len, int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_ADD_RELEASE_OP,
+			.len = len,
+			.u.arithmetic_op.p = (unsigned long)v,
+			.u.arithmetic_op.count = count,
+			.u.arithmetic_op.expect_fault_p = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv,
+			 int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = sizeof(intptr_t),
+			.u.compare_op.a = (unsigned long)v,
+			.u.compare_op.b = (unsigned long)&expect,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[1] = {
+			.op = CPU_MEMCPY_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v,
+			.u.memcpy_op.src = (unsigned long)&newv,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+static int cpu_op_cmpeqv_storep_expect_fault(intptr_t *v, intptr_t expect,
+					     intptr_t *newp, int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = sizeof(intptr_t),
+			.u.compare_op.a = (unsigned long)v,
+			.u.compare_op.b = (unsigned long)&expect,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[1] = {
+			.op = CPU_MEMCPY_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v,
+			.u.memcpy_op.src = (unsigned long)newp,
+			.u.memcpy_op.expect_fault_dst = 0,
+			/* Return EAGAIN on src fault. */
+			.u.memcpy_op.expect_fault_src = 1,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
+				 off_t voffp, intptr_t *load, int cpu)
+{
+	int ret;
+
+	do {
+		intptr_t oldv = READ_ONCE(*v);
+		intptr_t *newp = (intptr_t *)(oldv + voffp);
+
+		if (oldv == expectnot)
+			return 1;
+		ret = cpu_op_cmpeqv_storep_expect_fault(v, oldv, newp, cpu);
+		if (!ret) {
+			*load = oldv;
+			return 0;
+		}
+	} while (ret > 0);
+
+	return -1;
+}
+
+int cpu_op_cmpeqv_storev_storev(intptr_t *v, intptr_t expect,
+				intptr_t *v2, intptr_t newv2,
+				intptr_t newv, int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = sizeof(intptr_t),
+			.u.compare_op.a = (unsigned long)v,
+			.u.compare_op.b = (unsigned long)&expect,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[1] = {
+			.op = CPU_MEMCPY_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v2,
+			.u.memcpy_op.src = (unsigned long)&newv2,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+		[2] = {
+			.op = CPU_MEMCPY_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v,
+			.u.memcpy_op.src = (unsigned long)&newv,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_cmpeqv_storev_storev_release(intptr_t *v, intptr_t expect,
+				   intptr_t *v2, intptr_t newv2,
+				   intptr_t newv, int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = sizeof(intptr_t),
+			.u.compare_op.a = (unsigned long)v,
+			.u.compare_op.b = (unsigned long)&expect,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[1] = {
+			.op = CPU_MEMCPY_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v2,
+			.u.memcpy_op.src = (unsigned long)&newv2,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+		[2] = {
+			.op = CPU_MEMCPY_RELEASE_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v,
+			.u.memcpy_op.src = (unsigned long)&newv,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_cmpeqv_cmpeqv_storev(intptr_t *v, intptr_t expect,
+				intptr_t *v2, intptr_t expect2,
+				intptr_t newv, int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = sizeof(intptr_t),
+			.u.compare_op.a = (unsigned long)v,
+			.u.compare_op.b = (unsigned long)&expect,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[1] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = sizeof(intptr_t),
+			.u.compare_op.a = (unsigned long)v2,
+			.u.compare_op.b = (unsigned long)&expect2,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[2] = {
+			.op = CPU_MEMCPY_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v,
+			.u.memcpy_op.src = (unsigned long)&newv,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_cmpeqv_memcpy_storev(intptr_t *v, intptr_t expect,
+				void *dst, void *src, size_t len,
+				intptr_t newv, int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = sizeof(intptr_t),
+			.u.compare_op.a = (unsigned long)v,
+			.u.compare_op.b = (unsigned long)&expect,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[1] = {
+			.op = CPU_MEMCPY_OP,
+			.len = len,
+			.u.memcpy_op.dst = (unsigned long)dst,
+			.u.memcpy_op.src = (unsigned long)src,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+		[2] = {
+			.op = CPU_MEMCPY_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v,
+			.u.memcpy_op.src = (unsigned long)&newv,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_cmpeqv_memcpy_storev_release(intptr_t *v, intptr_t expect,
+				   void *dst, void *src, size_t len,
+				   intptr_t newv, int cpu)
+{
+	struct cpu_op opvec[] = {
+		[0] = {
+			.op = CPU_COMPARE_EQ_OP,
+			.len = sizeof(intptr_t),
+			.u.compare_op.a = (unsigned long)v,
+			.u.compare_op.b = (unsigned long)&expect,
+			.u.compare_op.expect_fault_a = 0,
+			.u.compare_op.expect_fault_b = 0,
+		},
+		[1] = {
+			.op = CPU_MEMCPY_OP,
+			.len = len,
+			.u.memcpy_op.dst = (unsigned long)dst,
+			.u.memcpy_op.src = (unsigned long)src,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+		[2] = {
+			.op = CPU_MEMCPY_RELEASE_OP,
+			.len = sizeof(intptr_t),
+			.u.memcpy_op.dst = (unsigned long)v,
+			.u.memcpy_op.src = (unsigned long)&newv,
+			.u.memcpy_op.expect_fault_dst = 0,
+			.u.memcpy_op.expect_fault_src = 0,
+		},
+	};
+
+	return cpu_opv(opvec, ARRAY_SIZE(opvec), cpu, 0);
+}
+
+int cpu_op_addv(intptr_t *v, int64_t count, int cpu)
+{
+	return cpu_op_add(v, count, sizeof(intptr_t), cpu);
+}
diff --git a/tools/testing/selftests/cpu-opv/cpu-op.h b/tools/testing/selftests/cpu-opv/cpu-op.h
new file mode 100644
index 000000000000..853fcb302516
--- /dev/null
+++ b/tools/testing/selftests/cpu-opv/cpu-op.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * cpu-op.h
+ *
+ * (C) Copyright 2017-2018 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef CPU_OPV_H
+#define CPU_OPV_H
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <linux/cpu_opv.h>
+
+int cpu_opv(struct cpu_op *cpuopv, int cpuopcnt, int cpu, int flags);
+int cpu_op_get_current_cpu(void);
+
+int cpu_op_cmpxchg(void *v, void *expect, void *old, void *_new, size_t len,
+		   int cpu);
+int cpu_op_add(void *v, int64_t count, size_t len, int cpu);
+int cpu_op_add_release(void *v, int64_t count, size_t len, int cpu);
+
+int cpu_op_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu);
+int cpu_op_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
+				 off_t voffp, intptr_t *load, int cpu);
+int cpu_op_cmpeqv_storev_storev(intptr_t *v, intptr_t expect,
+				intptr_t *v2, intptr_t newv2,
+				intptr_t newv, int cpu);
+int cpu_op_cmpeqv_storev_storev_release(intptr_t *v, intptr_t expect,
+				   intptr_t *v2, intptr_t newv2,
+				   intptr_t newv, int cpu);
+int cpu_op_cmpeqv_cmpeqv_storev(intptr_t *v, intptr_t expect,
+				intptr_t *v2, intptr_t expect2,
+				intptr_t newv, int cpu);
+int cpu_op_cmpeqv_memcpy_storev(intptr_t *v, intptr_t expect,
+				void *dst, void *src, size_t len,
+				intptr_t newv, int cpu);
+int cpu_op_cmpeqv_memcpy_storev_release(intptr_t *v, intptr_t expect,
+				   void *dst, void *src, size_t len,
+				   intptr_t newv, int cpu);
+int cpu_op_addv(intptr_t *v, int64_t count, int cpu);
+
+#endif  /* CPU_OPV_H_ */
-- 
2.11.0


  parent reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-01  9:58 [RFC PATCH for 4.21 00/16] rseq updates, new cpu_opv system call (v2) Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 01/16] rseq/selftests: Expose reference counter to coexist with glibc (v2) Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 02/16] rseq/selftests: Adapt number of threads to the number of detected cpus Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 03/16] mm: Replace BUG_ON() by WARN_ON() in vm_unmap_ram() Mathieu Desnoyers
2018-11-01 12:21   ` Thomas Gleixner
2018-11-01 18:46     ` Steven Rostedt
2018-11-01 19:57       ` Mathieu Desnoyers
2018-11-01 22:00         ` Linus Torvalds
2018-11-01 22:17           ` Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 04/16] mm: Introduce vm_map_user_ram, vm_unmap_user_ram (v2) Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 05/16] mm: Provide is_vma_noncached Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 06/16] cpu_opv: Provide cpu_opv system call (v9) Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 07/16] cpu_opv: limit amount of virtual address space used by cpu_opv Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 08/16] x86: Wire up cpu_opv system call Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 09/16] powerpc: " Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 10/16] arm: " Mathieu Desnoyers
2018-11-01  9:58 ` Mathieu Desnoyers [this message]
2018-11-01  9:58 ` [RFC PATCH for 4.21 12/16] cpu-opv/selftests: Provide basic test Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 13/16] cpu-opv/selftests: Provide percpu_op API Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 14/16] cpu-opv/selftests: Provide basic percpu ops test Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 15/16] cpu-opv/selftests: Provide parametrized tests Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 16/16] cpu-opv/selftests: Provide Makefile, scripts, gitignore Mathieu Desnoyers
2018-11-01 15:33 ` [RFC PATCH for 4.21 00/16] rseq updates, new cpu_opv system call (v2) Linus Torvalds
  -- strict thread matches above, loose matches on Subject: below --
2018-10-10 19:19 [RFC PATCH for 4.21 00/16] rseq updates, new cpu_opv system call Mathieu Desnoyers
2018-10-10 19:19 ` [RFC PATCH for 4.21 11/16] cpu-opv/selftests: Provide cpu-op library Mathieu Desnoyers

Reply instructions:

You may reply publically 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=20181101095844.24462-12-mathieu.desnoyers@efficios.com \
    --to=mathieu.desnoyers@efficios.com \
    --cc=akpm@linux-foundation.org \
    --cc=andi@firstfloor.org \
    --cc=bmaurer@fb.com \
    --cc=boqun.feng@gmail.com \
    --cc=catalin.marinas@arm.com \
    --cc=cl@linux.com \
    --cc=davejwatson@fb.com \
    --cc=hpa@zytor.com \
    --cc=joelaf@google.com \
    --cc=josh@joshtriplett.org \
    --cc=linux-api@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-kselftest@vger.kernel.org \
    --cc=linux@arm.linux.org.uk \
    --cc=luto@amacapital.net \
    --cc=mingo@redhat.com \
    --cc=mtk.manpages@gmail.com \
    --cc=paulmck@linux.vnet.ibm.com \
    --cc=peterz@infradead.org \
    --cc=pjt@google.com \
    --cc=rostedt@goodmis.org \
    --cc=shuah@kernel.org \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.org \
    --cc=will.deacon@arm.com \
    /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

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git