Re: [PATCH/RFC 2/4] Use 'lstat_cache()' instead of 'has_symlink_leading_path()'

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Kjetil Barvik <barvik@xxxxxxxxxxxx> writes:

> Start using the optimised, faster and more effective symlink/directory
> cache.  The previously used call:
>
>    has_symlink_leading_path(len, name);
>
> should be identically with the following call to lstat_cache():
>
>    lstat_cache(len, name,
>                LSTAT_SYMLINK|LSTAT_DIR,
>                LSTAT_SYMLINK);
> ...

Care to enlighten why some of callers use the above, but not others?
Namely, check_removed() in diff-lib.c and callers in unpack-trees.c care
about NOTDIR unlike others, even though the original code checked for
exactly the same condition.

Does this mean that some callers of has_symlink_leading_path() checked
only for leading symlinks when they should also have checked for a leading
non-directory, and this patch is also a bugfix?
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