vfs: link_path_walk: move more of the name hashing into hash_name()

This avoids having to return the length of the component entirely by
just doing all of the name processing in hash_name().  We can just
return the end of the path component, and a flag for the DOT and DOTDOT
cases.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 file changed