On Wed, Dec 11, 2019 at 11:59:40AM +0800, Tiezhu Yang wrote:
> static inline bool is_dot_or_dotdot(const unsigned char *name, size_t len)
> {
> if (len == 1 && name[0] == '.')
> return true;
>
> if (len == 2 && name[0] == '.' && name[1] == '.')
> return true;
>
> return false;
> }
>
> Hi Matthew,
>
> How do you think? I think the performance influence is very small
> due to is_dot_or_dotdot() is a such short static inline function.
It's a very short inline function called on a very hot codepath.
Often.
I mean it - it's done literally for every pathname component of
every pathname passed to a syscall.
