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c51d041998
This patch adds two new tracpoints for null_blk_zoned.c that allows us to trace report-zones, zone-mgmt-op and zone-write operations which has direct effect on the zone condition state machine. Also, we update drivers/block/Makefile so that new null_blk related tracefiles can be compiled. Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
22 lines
464 B
C
22 lines
464 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* null_blk trace related helpers.
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*
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* Copyright (C) 2020 Western Digital Corporation or its affiliates.
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*/
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#include "null_blk_trace.h"
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/*
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* Helper to use for all null_blk traces to extract disk name.
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*/
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const char *nullb_trace_disk_name(struct trace_seq *p, char *name)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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if (name && *name)
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trace_seq_printf(p, "disk=%s, ", name);
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trace_seq_putc(p, 0);
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return ret;
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}
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