linux-kernel - [PATCH v3 09/13] docs: path-lookup: no get

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Message-Id: <20210527091618.287093-10-foxhlchen@gmail.com>
Date:   Thu, 27 May 2021 17:16:14 +0800
From:   Fox Chen <foxhlchen@...il.com>
To:     neilb@...e.de
Cc:     Fox Chen <foxhlchen@...il.com>, corbet@....net,
        vegard.nossum@...cle.com, viro@...iv.linux.org.uk,
        rdunlap@...radead.org, grandmaster@...klimov.de,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org
Subject: [PATCH v3 09/13] docs: path-lookup: no get_link()

no get_link() anymore. we have step_into() and pick_link().

walk_component() will call step_into(), in turn call pick_link,
and return symlink name.

Signed-off-by: Fox Chen <foxhlchen@...il.com>
---
 Documentation/filesystems/path-lookup.rst | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/Documentation/filesystems/path-lookup.rst b/Documentation/filesystems/path-lookup.rst
index 3855809784cf..0a125673a8fe 100644
--- a/Documentation/filesystems/path-lookup.rst
+++ b/Documentation/filesystems/path-lookup.rst
@@ -1103,12 +1103,10 @@ doesn't need to notice.  Getting this ``name`` variable on and off the
 stack is very straightforward; pushing and popping the references is
 a little more complex.
 
-When a symlink is found, ``walk_component()`` returns the value ``1``
-(``0`` is returned for any other sort of success, and a negative number
-is, as usual, an error indicator).  This causes ``get_link()`` to be
-called; it then gets the link from the filesystem.  Providing that
-operation is successful, the old path ``name`` is placed on the stack,
-and the new value is used as the ``name`` for a while.  When the end of
+When a symlink is found, ``walk_component()`` calls ``pick_link()`` via ``step_into()``
+which returns the link from the filesystem.
+Providing that operation is successful, the old path ``name`` is placed on the
+stack, and the new value is used as the ``name`` for a while.  When the end of
 the path is found (i.e. ``*name`` is ``'\0'``) the old ``name`` is restored
 off the stack and path walking continues.
 
-- 
2.31.1