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From: Fox Chen <foxhlchen@gmail.com>
To: neilb@suse.de
Cc: Fox Chen <foxhlchen@gmail.com>,
	corbet@lwn.net, vegard.nossum@oracle.com,
	viro@zeniv.linux.org.uk, rdunlap@infradead.org,
	grandmaster@al2klimov.de, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org
Subject: [PATCH v2 09/12] docs: path-lookup: no get_link()
Date: Tue, 16 Mar 2021 13:47:24 +0800	[thread overview]
Message-ID: <20210316054727.25655-10-foxhlchen@gmail.com> (raw)
In-Reply-To: <20210316054727.25655-1-foxhlchen@gmail.com>

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@gmail.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 8ab95dd9046e..0d41c61f7e4f 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()``,
+it then gets the link from the filesystem returning new path ``name``.
+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.
 
-- 
2.30.2


  parent reply	other threads:[~2021-03-16  5:48 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-16  5:47 [PATCH v2 00/12] docs: path-lookup: Update pathlookup docs Fox Chen
2021-03-16  5:47 ` [PATCH v2 01/12] docs: path-lookup: update follow_managed() part Fox Chen
2021-04-19  0:52   ` NeilBrown
2021-04-19  2:17   ` Matthew Wilcox
2021-04-19  2:33     ` Fox Chen
2021-04-19  3:25       ` Matthew Wilcox
2021-04-19  3:33         ` Fox Chen
2021-04-19 19:22           ` Jonathan Corbet
2021-04-20  1:12             ` Fox Chen
2021-03-16  5:47 ` [PATCH v2 02/12] docs: path-lookup: update path_to_nameidata() part Fox Chen
2021-04-19  1:00   ` NeilBrown
2021-03-16  5:47 ` [PATCH v2 03/12] docs: path-lookup: update path_mountpoint() part Fox Chen
2021-04-19  1:03   ` NeilBrown
2021-03-16  5:47 ` [PATCH v2 04/12] docs: path-lookup: update do_last() part Fox Chen
2021-04-19  1:17   ` NeilBrown
2021-03-16  5:47 ` [PATCH v2 05/12] docs: path-lookup: remove filename_mountpoint Fox Chen
2021-04-19  1:20   ` NeilBrown
2021-03-16  5:47 ` [PATCH v2 06/12] docs: path-lookup: Add macro name to symlink limit description Fox Chen
2021-04-19  1:22   ` NeilBrown
2021-03-16  5:47 ` [PATCH v2 07/12] docs: path-lookup: i_op->follow_link replaced with i_op->get_link Fox Chen
2021-04-19  1:28   ` NeilBrown
2021-03-16  5:47 ` [PATCH v2 08/12] docs: path-lookup: update i_op->put_link and cookie description Fox Chen
2021-04-19  1:37   ` NeilBrown
2021-03-16  5:47 ` Fox Chen [this message]
2021-04-19  1:41   ` [PATCH v2 09/12] docs: path-lookup: no get_link() NeilBrown
2021-03-16  5:47 ` [PATCH v2 10/12] docs: path-lookup: update WALK_GET, WALK_PUT desc Fox Chen
2021-04-19  1:47   ` NeilBrown
2021-03-16  5:47 ` [PATCH v2 11/12] docs: path-lookup: update get_link() ->follow_link description Fox Chen
2021-04-19  1:54   ` NeilBrown
2021-03-16  5:47 ` [PATCH v2 12/12] docs: path-lookup: update symlink description Fox Chen
2021-04-19  1:59   ` NeilBrown
2021-04-19  2:34     ` Fox Chen
2021-04-13 21:18 ` [PATCH v2 00/12] docs: path-lookup: Update pathlookup docs Jonathan Corbet
2021-04-13 22:26   ` NeilBrown

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