Refs: [master], {origin/master}, {origin/HEAD}
Author:     Linus Torvalds <[email protected]>
AuthorDate: Thu Jul 19 11:00:13 2018 -0700
Commit:     Linus Torvalds <[email protected]>
CommitDate: Thu Jul 19 11:05:23 2018 -0700
    Allow bigger filenames
    Not that I know why. 80-character filename limits are kind of cute.
    Joerg suggested _POSIX_PATH_MAX, which is almost certainly the right
    value.  But that's bigger than HUGE:
       #define HUGE    1000           /* Huge number                  */
    which obviously means we shouldn't go quite *that* extreme.
    Remember, we come from the days when it was hard to do allocations
    larger than 64kB.   We have limits, dammit.
    "256 bytes is enough for anybody"
哈哈