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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/tools/perf/util/namespaces.c
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@@ -1,14 +1,12 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License, version 2, as
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- * published by the Free Software Foundation.
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  *
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  * Copyright (C) 2017 Hari Bathini, IBM Corporation
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  */
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 #include "namespaces.h"
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-#include "util.h"
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 #include "event.h"
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+#include "get_current_dir_name.h"
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 #include <sys/types.h>
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 #include <sys/stat.h>
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 #include <fcntl.h>
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@@ -19,8 +17,27 @@
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 #include <string.h>
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 #include <unistd.h>
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 #include <asm/bug.h>
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+#include <linux/kernel.h>
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+#include <linux/zalloc.h>
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-struct namespaces *namespaces__new(struct namespaces_event *event)
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+static const char *perf_ns__names[] = {
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+	[NET_NS_INDEX]		= "net",
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+	[UTS_NS_INDEX]		= "uts",
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+	[IPC_NS_INDEX]		= "ipc",
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+	[PID_NS_INDEX]		= "pid",
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+	[USER_NS_INDEX]		= "user",
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+	[MNT_NS_INDEX]		= "mnt",
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+	[CGROUP_NS_INDEX]	= "cgroup",
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+};
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+
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+const char *perf_ns__name(unsigned int id)
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+{
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+	if (id >= ARRAY_SIZE(perf_ns__names))
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+		return "UNKNOWN";
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+	return perf_ns__names[id];
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+}
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+
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+struct namespaces *namespaces__new(struct perf_record_namespaces *event)
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 {
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 	struct namespaces *namespaces;
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 	u64 link_info_size = ((event ? event->nr_namespaces : NR_NAMESPACES) *