Eric Paris wrote:
> Interesting, is this a result of the compiler previously being able to
> optimize the division since it could tell it was a power of 2 and now
> that we have a private variable it can't? The patch can easily be
> reverted without breaking anyone else....
It seems that GCC 3.x can optimize
roundup((long long), (const))
but cannot optimize
#define roundup(x, y) ( \
{ \
typeof(y) __y = y; \
(((x) + (__y - 1)) / __y) * __y; \
} \
)
when y is a constant value.
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
