linux-kernel - [PATCH 0/3] whack user_path_at_empty, cleanup getname

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Date: Tue,  4 Jun 2024 17:52:54 +0200
From: Mateusz Guzik <mjguzik@...il.com>
To: brauner@...nel.org
Cc: viro@...iv.linux.org.uk,
	jack@...e.cz,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	Mateusz Guzik <mjguzik@...il.com>
Subject: [PATCH 0/3] whack user_path_at_empty, cleanup getname_flags

I tried to take a stab at the atomic filename refcount thing [1], found
some easy cleanup to do as a soft prerequisite.

user_path_at_empty saddles getname_flags with an int * argument nobody
else uses, so it only results in everyone else having to pass NULL
there. This is trivially avoidable.

Should a need for user_path_at_empty it can probably be implemented in a
nicer manner than it was.

1: https://lore.kernel.org/linux-fsdevel/20240604132448.101183-1-mjguzik@gmail.com/T/#u

Mateusz Guzik (3):
  vfs: stop using user_path_at_empty in do_readlinkat
  vfs: retire user_path_at_empty and drop empty arg from getname_flags
  vfs: shave a branch in getname_flags

 fs/fsopen.c           |  2 +-
 fs/namei.c            | 41 +++++++++++++++++++------------------
 fs/stat.c             | 47 ++++++++++++++++++++++++-------------------
 include/linux/fs.h    |  2 +-
 include/linux/namei.h |  8 +-------
 io_uring/statx.c      |  3 +--
 io_uring/xattr.c      |  4 ++--
 7 files changed, 53 insertions(+), 54 deletions(-)

-- 
2.39.2