[LTP] [PATCH v2 1/5] Hugetlb: Migrating libhugetlbfs counters

[Cyril Hrubis]

Hi!
> > I guess that we can also put the map() (touch()) test_counters() unamp()
> > sequence to a do_test() fuction then call it from the for() loop in
> > run_test(). That would make the code a bit cleaner.
> > 
> Instead, I am thinking of a defining a macro like this, 
> 
> #define CHECK_(fun) ({			\
> 		if (fun) {					\
> 				break;				\
> 			}						\
> 		})
> 
> inside test_counters:
> 
> do {
> 	CHECK_(map(...));
> 	CHECK_(touch(...));
> 	CHECK_(unmap(...));
> } while(0)
> 
> inside for loop of run_test:
> 
> CHECK_(map(...));
> CHECK_(test_counters(...));
> CHECK_(unmap(...));

While this is much better than longjmp() it still obscures the codeflow
a little bit.

Also I do not think that we need all the braces in the CHECK() macro, it
should be enough just to do:

#define CHECK(fun) \
	if (fun) \
		break;

or even:

#define CHECK(fun) if (fun) break;

-- 
Cyril Hrubis
chrubis@suse.cz