Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull misc vfs updates from Al Viro:
 "Assorted bits and pieces from various people. No common topic in this
  pile, sorry"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs/affs: add rename exchange
  fs/affs: add rename2 to prepare multiple methods
  Make stat/lstat/fstatat pass AT_NO_AUTOMOUNT to vfs_statx()
  fs: don't set *REFERENCED on single use objects
  fs: compat: Remove warning from COMPATIBLE_IOCTL
  remove pointless extern of atime_need_update_rcu()
  fs: completely ignore unknown open flags
  fs: add a VALID_OPEN_FLAGS
  fs: remove _submit_bh()
  fs: constify tree_descr arrays passed to simple_fill_super()
  fs: drop duplicate header percpu-rwsem.h
  fs/affs: bugfix: Write files greater than page size on OFS
  fs/affs: bugfix: enable writes on OFS disks
  fs/affs: remove node generation check
  fs/affs: import amigaffs.h
  fs/affs: bugfix: make symbolic links work again

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/open.c b/fs/open.c
index 4d23f729dcc6..373787afd638 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -900,6 +900,12 @@ static inline int build_open_flags(int flags, umode_t mode, struct open_flags *o
         int lookup_flags = 0;
         int acc_mode = ACC_MODE(flags);
 
+        /*
+         * Clear out all open flags we don't know about so that we don't report
+         * them in fcntl(F_GETFD) or similar interfaces.
+         */
+        flags &= VALID_OPEN_FLAGS;
+
         if (flags & (O_CREAT | __O_TMPFILE))
                 op->mode = (mode & S_IALLUGO) | S_IFREG;
         else