Re: [PATCH][RESEND] fuse: add simple request tracepoints

[Bernd Schubert <bernd.schubert@xxxxxxxxxxx>]

On 7/3/24 16:38, Josef Bacik wrote:
> I've been timing various fuse operations and it's quite annoying to do
> with kprobes.  Add two tracepoints for sending and ending fuse requests
> to make it easier to debug and time various operations.

Thanks, this is super helpful.

[...]
> +	EM( FUSE_STATX,			"FUSE_STATX")		\
> +	EMe(CUSE_INIT,			"CUSE_INIT")
> +
> +/*
> + * This will turn the above table into TRACE_DEFINE_ENUM() for each of the
> + * entries.
> + */
> +#undef EM
> +#undef EMe
> +#define EM(a, b)	TRACE_DEFINE_ENUM(a);
> +#define EMe(a, b)	TRACE_DEFINE_ENUM(a);


I'm not super familiar with tracepoints and I'm a bit list why "EMe" is 
needed
in addition to EM? CUSE_INIT is just another number?


Thanks,
Bernd