Re: [PATCH] lib/string.c: Disable tree-loop-distribute-patterns

[Arvind Sankar]

On Tue, Aug 18, 2020 at 08:32:58PM -0700, Linus Torvalds wrote:
> On Tue, Aug 18, 2020 at 8:04 PM Arvind Sankar <nivedita@xxxxxxxxxxxx> wrote:
> 
> > Might be worth optimizing strnlen etc with the word-at-a-time thing though.
> 
> Yeah, possibly. Except the kernel almost never uses strnlen for
> anything bigger. At least I haven't seen it very much in the profiles.

strscpy could be implemented as strnlen+memcpy. I'd think that wouldn't
be much slower, especially if strnlen is optimized and the arch has a
good implementation of memcpy?