change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/lib/find_bit_benchmark.c
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@@ -1,16 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Test for find_*_bit functions.
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  *
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  * Copyright (c) 2017 Cavium.
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of version 2 of the GNU General Public
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- * License as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- * General Public License for more details.
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  */
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 /*
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@@ -108,14 +100,13 @@
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 		const void *bitmap2, unsigned long len)
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 {
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 	unsigned long i, cnt;
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-	cycles_t cycles;
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+	ktime_t time;
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-	cycles = get_cycles();
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+	time = ktime_get();
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 	for (cnt = i = 0; i < BITMAP_LEN; cnt++)
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-		i = find_next_and_bit(bitmap, bitmap2, BITMAP_LEN, i+1);
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-	cycles = get_cycles() - cycles;
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-	pr_err("find_next_and_bit:\t\t%llu cycles, %ld iterations\n",
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-		(u64)cycles, cnt);
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+		i = find_next_and_bit(bitmap, bitmap2, BITMAP_LEN, i + 1);
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+	time = ktime_get() - time;
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+	pr_err("find_next_and_bit:  %18llu ns, %6ld iterations\n", time, cnt);
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 	return 0;
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 }