[git pull] vfs.git d_path series

[Al Viro <viro@zeniv.linux.org.uk>]

	d_path.c refactoring

The following changes since commit 6efb943b8616ec53a5e444193dccf1af9ad627b5:

  Linux 5.13-rc1 (2021-05-09 14:17:44 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.d_path

for you to fetch changes up to e4b275531887fef7f7d8a7284bfc32f0fbbd4208:

  getcwd(2): clean up error handling (2021-05-18 20:15:58 -0400)

----------------------------------------------------------------
Al Viro (14):
      d_path: "\0" is {0,0}, not {0}
      d_path: saner calling conventions for __dentry_path()
      d_path: regularize handling of root dentry in __dentry_path()
      d_path: get rid of path_with_deleted()
      getcwd(2): saner logics around prepend_path() call
      d_path: don't bother with return value of prepend()
      d_path: lift -ENAMETOOLONG handling into callers of prepend_path()
      d_path: make prepend_name() boolean
      d_path: introduce struct prepend_buffer
      d_path: prepend_path(): get rid of vfsmnt
      d_path: prepend_path(): lift resetting b in case when we'd return 3 out of loop
      d_path: prepend_path(): lift the inner loop into a new helper
      d_path: prepend_path() is unlikely to return non-zero
      getcwd(2): clean up error handling

 fs/d_path.c | 324 +++++++++++++++++++++++++-----------------------------------
 1 file changed, 133 insertions(+), 191 deletions(-)