[linux-block.git] / drivers / block / null_blk_trace.c

// SPDX-License-Identifier: GPL-2.0
/*
 * null_blk trace related helpers.
 *
 * Copyright (C) 2020 Western Digital Corporation or its affiliates.
 */
#include "null_blk_trace.h"

/*
 * Helper to use for all null_blk traces to extract disk name.
 */
const char *nullb_trace_disk_name(struct trace_seq *p, char *name)
{
	const char *ret = trace_seq_buffer_ptr(p);

	if (name && *name)
		trace_seq_printf(p, "disk=%s, ", name);
	trace_seq_putc(p, 0);

	return ret;
}
Commit	Line	Data
c51d0419 CK	1	// SPDX-License-Identifier: GPL-2.0
	2	/*
	3	* null_blk trace related helpers.
	4	*
	5	* Copyright (C) 2020 Western Digital Corporation or its affiliates.
	6	*/
	7	#include "null_blk_trace.h"
	8
	9	/*
	10	* Helper to use for all null_blk traces to extract disk name.
	11	*/
	12	const char nullb_trace_disk_name(struct trace_seq p, char *name)
	13	{
	14	const char *ret = trace_seq_buffer_ptr(p);
	15
	16	if (name && *name)
	17	trace_seq_printf(p, "disk=%s, ", name);
	18	trace_seq_putc(p, 0);
	19
	20	return ret;
	21	}