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| author | Fox Chen <foxhlchen@gmail.com> | 2021-05-27 12:16:06 +0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2021-06-18 20:36:07 +0300 |
| commit | 993b892610d159dc16f6556dd0bf111ddc3ce0b9 (patch) | |
| tree | b028139b54e97713c16c0c43027fbb72ff34530d /Documentation/filesystems | |
| parent | 222a28edce38b62074a950fb243df621c602b4d3 (diff) | |
| download | linux-993b892610d159dc16f6556dd0bf111ddc3ce0b9.tar.xz | |
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 <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>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/path-lookup.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/filesystems/path-lookup.rst b/Documentation/filesystems/path-lookup.rst index c482e1619e77..751082d469e8 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``: |