From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sat, 3 Jul 2021 18:41:14 +0000 (-0700)
Subject: Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
X-Git-Tag: accepted/tizen/unified/20230118.172025~6912
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=58ec9059b396a570b208239b4edc45eeb68b14c4;p=platform%2Fkernel%2Flinux-rpi.git

Merge branch 'work.namei' of git://git./linux/kernel/git/viro/vfs

Pull vfs name lookup updates from Al Viro:
 "Small namei.c patch series, mostly to simplify the rules for nameidata
  state. It's actually from the previous cycle - but I didn't post it
  for review in time...

  Changes visible outside of fs/namei.c: file_open_root() calling
  conventions change, some freed bits in LOOKUP_... space"

* 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  namei: make sure nd->depth is always valid
  teach set_nameidata() to handle setting the root as well
  take LOOKUP_{ROOT,ROOT_GRABBED,JUMPED} out of LOOKUP_... space
  switch file_open_root() to struct path
---

58ec9059b396a570b208239b4edc45eeb68b14c4
diff --cc Documentation/filesystems/porting.rst
index 43b492d,9bb2b35..bf19fd6
--- a/Documentation/filesystems/porting.rst
+++ b/Documentation/filesystems/porting.rst
@@@ -895,7 -895,7 +895,16 @@@ whereas previously it could be paired w
  
  **mandatory**
  
 +iov_iter_copy_from_user_atomic() is gone; use copy_page_from_iter_atomic().
 +The difference is copy_page_from_iter_atomic() advances the iterator and
 +you don't need iov_iter_advance() after it.  However, if you decide to use
 +only a part of obtained data, you should do iov_iter_revert().
++
++---
++
++**mandatory**
++
+ Calling conventions for file_open_root() changed; now it takes struct path *
+ instead of passing mount and dentry separately.  For callers that used to
+ pass <mnt, mnt->mnt_root> pair (i.e. the root of given mount), a new helper
+ is provided - file_open_root_mnt().  In-tree users adjusted.