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authorLinus Torvalds <torvalds@linux-foundation.org>2020-04-02 12:30:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-02 12:30:08 -0700
commit9c577491b985e1b27995abe69b32b041893798cf (patch)
treea7c9c8f29310b76368c94b4cd05c762464b1658a /Documentation
parentd987ca1c6b7e22fbd30664111e85cec7aa66000d (diff)
parent99a4a90c8e9337e364136393286544e3753673c3 (diff)
downloadlwn-9c577491b985e1b27995abe69b32b041893798cf.tar.gz
lwn-9c577491b985e1b27995abe69b32b041893798cf.zip
Merge branch 'work.dotdot1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pathwalk sanitizing from Al Viro: "Massive pathwalk rewrite and cleanups. Several iterations have been posted; hopefully this thing is getting readable and understandable now. Pretty much all parts of pathname resolutions are affected... The branch is identical to what has sat in -next, except for commit message in "lift all calls of step_into() out of follow_dotdot/ follow_dotdot_rcu", crediting Qian Cai for reporting the bug; only commit message changed there." * 'work.dotdot1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (69 commits) lookup_open(): don't bother with fallbacks to lookup+create atomic_open(): no need to pass struct open_flags anymore open_last_lookups(): move complete_walk() into do_open() open_last_lookups(): lift O_EXCL|O_CREAT handling into do_open() open_last_lookups(): don't abuse complete_walk() when all we want is unlazy open_last_lookups(): consolidate fsnotify_create() calls take post-lookup part of do_last() out of loop link_path_walk(): sample parent's i_uid and i_mode for the last component __nd_alloc_stack(): make it return bool reserve_stack(): switch to __nd_alloc_stack() pick_link(): take reserving space on stack into a new helper pick_link(): more straightforward handling of allocation failures fold path_to_nameidata() into its only remaining caller pick_link(): pass it struct path already with normal refcounting rules fs/namei.c: kill follow_mount() non-RCU analogue of the previous commit helper for mount rootwards traversal follow_dotdot(): be lazy about changing nd->path follow_dotdot_rcu(): be lazy about changing nd->path follow_dotdot{,_rcu}(): massage loops ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/path-lookup.rst7
1 files changed, 2 insertions, 5 deletions
diff --git a/Documentation/filesystems/path-lookup.rst b/Documentation/filesystems/path-lookup.rst
index a3216979298b..f46b05e9b96c 100644
--- a/Documentation/filesystems/path-lookup.rst
+++ b/Documentation/filesystems/path-lookup.rst
@@ -404,11 +404,8 @@ that is the "next" component in the pathname.
``int last_type``
~~~~~~~~~~~~~~~~~
-This is one of ``LAST_NORM``, ``LAST_ROOT``, ``LAST_DOT``, ``LAST_DOTDOT``, or
-``LAST_BIND``. The ``last`` field is only valid if the type is
-``LAST_NORM``. ``LAST_BIND`` is used when following a symlink and no
-components of the symlink have been processed yet. Others should be
-fairly self-explanatory.
+This is one of ``LAST_NORM``, ``LAST_ROOT``, ``LAST_DOT`` or ``LAST_DOTDOT``.
+The ``last`` field is only valid if the type is ``LAST_NORM``.
``struct path root``
~~~~~~~~~~~~~~~~~~~~