From 993b892610d159dc16f6556dd0bf111ddc3ce0b9 Mon Sep 17 00:00:00 2001 From: Fox Chen Date: Thu, 27 May 2021 17:16:06 +0800 Subject: [PATCH] docs: path-lookup: update follow_managed() part No follow_managed() anymore, handle_mounts(), traverse_mounts(), will do the job. see commit 9deed3ebca24 ("new helper: traverse_mounts()") Signed-off-by: Fox Chen Reviewed-by: NeilBrown Link: https://lore.kernel.org/r/20210527091618.287093-2-foxhlchen@gmail.com Signed-off-by: Jonathan Corbet --- Documentation/filesystems/path-lookup.rst | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/Documentation/filesystems/path-lookup.rst b/Documentation/filesystems/path-lookup.rst index c482e16..751082d 100644 --- a/Documentation/filesystems/path-lookup.rst +++ b/Documentation/filesystems/path-lookup.rst @@ -448,10 +448,11 @@ described. If it finds a ``LAST_NORM`` component it first calls filesystem to revalidate the result if it is that sort of filesystem. If that doesn't get a good result, it calls "``lookup_slow()``" which takes ``i_rwsem``, rechecks the cache, and then asks the filesystem -to find a definitive answer. Each of these will call -``follow_managed()`` (as described below) to handle any mount points. +to find a definitive answer. -In the absence of symbolic links, ``walk_component()`` creates a new +As the last step of ``walk_component()``, ``step_into()`` will be called either +directly from walk_component() or from handle_dots(). It calls +``handle_mounts()``, to check and handle mount points, in which a new ``struct path`` containing a counted reference to the new dentry and a reference to the new ``vfsmount`` which is only counted if it is different from the previous ``vfsmount``. It then calls @@ -535,8 +536,7 @@ covered in greater detail in autofs.txt in the Linux documentation tree, but a few notes specifically related to path lookup are in order here. -The Linux VFS has a concept of "managed" dentries which is reflected -in function names such as "``follow_managed()``". There are three +The Linux VFS has a concept of "managed" dentries. There are three potentially interesting things about these dentries corresponding to three different flags that might be set in ``dentry->d_flags``: -- 2.7.4