Re: [PATCH v2 5/7] trace2: convert ctx.thread_name from strbuf to pointer

> From: Jeff Hostetler <jeffhost@microsoft.com>
>
> Convert the `tr2tls_thread_ctx.thread_name` field from a `strbuf`
> to a "const char*" pointer.
>
> The `thread_name` field is a constant string that is constructed when
> the context is created.  Using a (non-const) `strbuf` structure for it
> caused some confusion in the past because it implied that someone
> could rename a thread after it was created.  That usage was not
> intended.  Change it to a const pointer to make the intent more clear.
>
> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
> ---
>  trace2/tr2_tgt_event.c |  2 +-
>  trace2/tr2_tgt_perf.c  |  2 +-
>  trace2/tr2_tls.c       | 16 +++++++++-------
>  trace2/tr2_tls.h       |  2 +-
>  4 files changed, 12 insertions(+), 10 deletions(-)