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docs: path-lookup: update follow_managed() part 

No follow_managed() anymore, handle_mounts(),
traverse_mounts(), will do the job.
see commit 9deed3ebca ("new helper: traverse_mounts()")

Signed-off-by: Fox Chen <foxhlchen@gmail.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Link: https://lore.kernel.org/r/20210527091618.287093-2-foxhlchen@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Fox Chen 2021-05-27 17:16:06 +08:00 committed by Jonathan Corbet
parent 222a28edce
commit 993b892610
1 changed files with 5 additions and 5 deletions
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10
Documentation/filesystems/path-lookup.rst
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@ -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``: