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docs: path-lookup: Add macro name to symlink limit description 

Add macro name MAXSYMLINKS to the symlink limit description, so
that it is consistent with path name length description above.

Signed-off-by: Fox Chen <foxhlchen@gmail.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Link: https://lore.kernel.org/r/20210527091618.287093-7-foxhlchen@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Fox Chen 2021-05-27 17:16:11 +08:00 committed by Jonathan Corbet
parent 34ef75ef25
commit d2d3dd5ecc
1 changed files with 2 additions and 2 deletions
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Documentation/filesystems/path-lookup.rst
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@ -992,8 +992,8 @@ is 4096. There are a number of reasons for this limit; not letting the
kernel spend too much time on just one path is one of them. With
symbolic links you can effectively generate much longer paths so some
sort of limit is needed for the same reason. Linux imposes a limit of
at most 40 symlinks in any one path lookup. It previously imposed a
further limit of eight on the maximum depth of recursion, but that was
at most 40 (MAXSYMLINKS) symlinks in any one path lookup. It previously imposed
a further limit of eight on the maximum depth of recursion, but that was
raised to 40 when a separate stack was implemented, so there is now
just the one limit.