WALK_GET is changed to WALK_TRAILING with a different meaning.
Here it should be WALK_NOFOLLOW. WALK_PUT dosn't exist, we have
WALK_MORE.
WALK_PUT == !WALK_MORE
And there is not should_follow_link().
Related commits:
commit 8c4efe22e7c4 ("namei: invert the meaning of WALK_FOLLOW")
commit 1c4ff1a87e46 ("namei: invert WALK_PUT logics")
Signed-off-by: Fox Chen <foxhlchen@xxxxxxxxx>
---
Documentation/filesystems/path-lookup.rst | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/Documentation/filesystems/path-lookup.rst b/Documentation/filesystems/path-lookup.rst
index 0a125673a8fe..08e6306af5b1 100644
--- a/Documentation/filesystems/path-lookup.rst
+++ b/Documentation/filesystems/path-lookup.rst
@@ -1123,13 +1123,13 @@ stack in ``walk_component()`` immediately when the symlink is found;
old symlink as it walks that last component. So it is quite
convenient for ``walk_component()`` to release the old symlink and pop
the references just before pushing the reference information for the
-new symlink. It is guided in this by two flags; ``WALK_GET``, which
-gives it permission to follow a symlink if it finds one, and
-``WALK_PUT``, which tells it to release the current symlink after it has been
-followed. ``WALK_PUT`` is tested first, leading to a call to
-``put_link()``. ``WALK_GET`` is tested subsequently (by
-``should_follow_link()``) leading to a call to ``pick_link()`` which sets
-up the stack frame.
+new symlink. It is guided in this by three flags: ``WALK_NOFOLLOW`` which
+forbits it from following a symlink if it finds one, ``WALK_MORE``
+which indicates that it is yet too early to release the
+current symlink, and ``WALK_TRAILING`` which predicates that it is on the final
+component of the lookup, so we will check userspace flag ``LOOKUP_FOLLOW`` to
+decide whether follow it when it is a symlink and call ``may_follow_link()`` to
+check if we have privilege to follow it.
Symlinks with no final component
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
2.31.1
