diff options
Diffstat (limited to '')
-rw-r--r-- | drivers/block/null_blk/trace.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/block/null_blk/trace.c b/drivers/block/null_blk/trace.c new file mode 100644 index 000000000..3711cba16 --- /dev/null +++ b/drivers/block/null_blk/trace.c @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * null_blk trace related helpers. + * + * Copyright (C) 2020 Western Digital Corporation or its affiliates. + */ +#include "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; +} |