Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs pile 1 from Al Viro:
 "Unfortunately, this merge window it'll have a be a lot of small piles -
  my fault, actually, for not keeping #for-next in anything that would
  resemble a sane shape ;-/

  This pile: assorted fixes (the first 3 are -stable fodder, IMO) and
  cleanups + %pd/%pD formats (dentry/file pathname, up to 4 last
  components) + several long-standing patches from various folks.

  There definitely will be a lot more (starting with Miklos'
  check_submount_and_drop() series)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits)
  direct-io: Handle O_(D)SYNC AIO
  direct-io: Implement generic deferred AIO completions
  add formats for dentry/file pathnames
  kvm eventfd: switch to fdget
  powerpc kvm: use fdget
  switch fchmod() to fdget
  switch epoll_ctl() to fdget
  switch copy_module_from_fd() to fdget
  git simplify nilfs check for busy subtree
  ibmasmfs: don't bother passing superblock when not needed
  don't pass superblock to hypfs_{mkdir,create*}
  don't pass superblock to hypfs_diag_create_files
  don't pass superblock to hypfs_vm_create_files()
  oprofile: get rid of pointless forward declarations of struct super_block
  oprofilefs_create_...() do not need superblock argument
  oprofilefs_mkdir() doesn't need superblock argument
  don't bother with passing superblock to oprofile_create_stats_files()
  oprofile: don't bother with passing superblock to ->create_files()
  don't bother passing sb to oprofile_create_files()
  coh901318: don't open-code simple_read_from_buffer()
  ...

2 files changed, 5 insertions, 4 deletions

diff --git a/mm/filemap.c b/mm/filemap.c
index 4b51ac1acae7..731a2c24532d 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2550,7 +2550,7 @@ ssize_t generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
         ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos);
         mutex_unlock(&inode->i_mutex);
 
-        if (ret > 0 || ret == -EIOCBQUEUED) {
+        if (ret > 0) {
                 ssize_t err;
 
                 err = generic_write_sync(file, pos, ret);
diff --git a/mm/shmem.c b/mm/shmem.c
index e43dc555069d..526149846d0a 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2615,13 +2615,15 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
          * tmpfs instance, limiting inodes to one per page of lowmem;
          * but the internal instance is left unlimited.
          */
-        if (!(sb->s_flags & MS_NOUSER)) {
+        if (!(sb->s_flags & MS_KERNMOUNT)) {
                 sbinfo->max_blocks = shmem_default_max_blocks();
                 sbinfo->max_inodes = shmem_default_max_inodes();
                 if (shmem_parse_options(data, sbinfo, false)) {
                         err = -EINVAL;
                         goto failed;
                 }
+        } else {
+                sb->s_flags |= MS_NOUSER;
         }
         sb->s_export_op = &shmem_export_ops;
         sb->s_flags |= MS_NOSEC;
@@ -2831,8 +2833,7 @@ int __init shmem_init(void)
                 goto out2;
         }
 
-        shm_mnt = vfs_kern_mount(&shmem_fs_type, MS_NOUSER,
-                                 shmem_fs_type.name, NULL);
+        shm_mnt = kern_mount(&shmem_fs_type);
         if (IS_ERR(shm_mnt)) {
                 error = PTR_ERR(shm_mnt);
                 printk(KERN_ERR "Could not kern_mount tmpfs\n");