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docs: path-lookup: remove filename_mountpoint 

No filename_mountpoint any more
see commit: commit 161aff1d93 ("LOOKUP_MOUNTPOINT:
fold path_mountpointat() into path_lookupat()")

Without filename_mountpoint and path_mountpoint(), the
numbers should be four & three:

"These four correspond roughly to the three path_*() functions"

Signed-off-by: Fox Chen <foxhlchen@gmail.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Link: https://lore.kernel.org/r/20210527091618.287093-6-foxhlchen@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Fox Chen 2021-05-27 17:16:10 +08:00 committed by Jonathan Corbet
parent 71e0a67dc6
commit 34ef75ef25
1 changed files with 3 additions and 3 deletions
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6
Documentation/filesystems/path-lookup.rst
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@ -652,9 +652,9 @@ restarts from the top with REF-walk.
This pattern of "try RCU-walk, if that fails try REF-walk" can be
clearly seen in functions like ``filename_lookup()``,
``filename_parentat()``, ``filename_mountpoint()``,
``do_filp_open()``, and ``do_file_open_root()``. These five
correspond roughly to the four ``path_*()`` functions we met earlier,
``filename_parentat()``,
``do_filp_open()``, and ``do_file_open_root()``. These four
correspond roughly to the three ``path_*()`` functions we met earlier,
each of which calls ``link_path_walk()``. The ``path_*()`` functions are
called using different mode flags until a mode is found which works.
They are first called with ``LOOKUP_RCU`` set to request "RCU-walk". If