Christopher Haster 116c1e76de Adopted EISDIR as internal error for root path as argument ...

Unfortunately, it's hard to make directory lookups for root not a
special case, and we don't like special cases when we're trying to keep
code size small.

Since there are a handful of code paths where opening root should return
EISDIR (such as lfs_file_open("/")), using EISDIR to note that the
argument is in fact a path to the root.

This is needed because we no longer look up an entries contents in
lfs_dir_find for free, since entries are more ephemeral.

2018-10-13 18:25:08 -05:00

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