linux-kernel - [PATCH V3 2/2] Tools: Replace open encodings for NUMA_NO

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Message-Id: <1545127933-10711-3-git-send-email-anshuman.khandual@arm.com>
Date:   Tue, 18 Dec 2018 15:42:13 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc:     ocfs2-devel@....oracle.com, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, netdev@...r.kernel.org,
        intel-wired-lan@...ts.osuosl.org, linux-media@...r.kernel.org,
        iommu@...ts.linux-foundation.org, linux-rdma@...r.kernel.org,
        dmaengine@...r.kernel.org, linux-block@...r.kernel.org,
        sparclinux@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-ia64@...r.kernel.org, linux-alpha@...r.kernel.org,
        akpm@...ux-foundation.org, jiangqi903@...il.com,
        hverkuil@...all.nl, vkoul@...nel.org, sfr@...b.auug.org.au,
        dledford@...hat.com, mpe@...erman.id.au, axboe@...nel.dk,
        jeffrey.t.kirsher@...el.com, david@...hat.com
Subject: [PATCH V3 2/2] Tools: Replace open encodings for NUMA_NO_NODE

From: Stephen Rothwell <sfr@...b.auug.org.au>

This replaces all open encodings in tools with NUMA_NO_NODE.
Also linux/numa.h is now needed for the perf build.

Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 tools/include/linux/numa.h | 16 ++++++++++++++++
 tools/perf/bench/numa.c    |  6 +++---
 2 files changed, 19 insertions(+), 3 deletions(-)
 create mode 100644 tools/include/linux/numa.h

diff --git a/tools/include/linux/numa.h b/tools/include/linux/numa.h
new file mode 100644
index 0000000..110b0e5
--- /dev/null
+++ b/tools/include/linux/numa.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_NUMA_H
+#define _LINUX_NUMA_H
+
+
+#ifdef CONFIG_NODES_SHIFT
+#define NODES_SHIFT     CONFIG_NODES_SHIFT
+#else
+#define NODES_SHIFT     0
+#endif
+
+#define MAX_NUMNODES    (1 << NODES_SHIFT)
+
+#define	NUMA_NO_NODE	(-1)
+
+#endif /* _LINUX_NUMA_H */
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 4419551..e0ad5f1 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -298,7 +298,7 @@ static cpu_set_t bind_to_node(int target_node)
 
 	CPU_ZERO(&mask);
 
-	if (target_node == -1) {
+	if (target_node == NUMA_NO_NODE) {
 		for (cpu = 0; cpu < g->p.nr_cpus; cpu++)
 			CPU_SET(cpu, &mask);
 	} else {
@@ -339,7 +339,7 @@ static void bind_to_memnode(int node)
 	unsigned long nodemask;
 	int ret;
 
-	if (node == -1)
+	if (node == NUMA_NO_NODE)
 		return;
 
 	BUG_ON(g->p.nr_nodes > (int)sizeof(nodemask)*8);
@@ -1363,7 +1363,7 @@ static void init_thread_data(void)
 		int cpu;
 
 		/* Allow all nodes by default: */
-		td->bind_node = -1;
+		td->bind_node = NUMA_NO_NODE;
 
 		/* Allow all CPUs by default: */
 		CPU_ZERO(&td->bind_cpumask);
-- 
2.7.4