Commit 34ef75ef authored by Fox Chen's avatar Fox Chen Committed by Jonathan Corbet
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docs: path-lookup: remove filename_mountpoint 



No filename_mountpoint any more
see commit: commit 161aff1d ("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: default avatarFox Chen <foxhlchen@gmail.com>
Reviewed-by: default avatarNeilBrown <neilb@suse.de>
Link: https://lore.kernel.org/r/20210527091618.287093-6-foxhlchen@gmail.com


Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 71e0a67d

Documentation/filesystems/path-lookup.rst

+3 −3
Original line number Diff line number Diff line
@@ -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