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

Pull vfs updates from Al Viro:
 "This the bunch that sat in -next + lock_parent() fix.  This is the
  minimal set; there's more pending stuff.

  In particular, I really hope to get acct.c fixes merged this cycle -
  we need that to deal sanely with delayed-mntput stuff.  In the next
  pile, hopefully - that series is fairly short and localized
  (kernel/acct.c, fs/super.c and fs/namespace.c).  In this pile: more
  iov_iter work.  Most of prereqs for ->splice_write with sane locking
  order are there and Kent's dio rewrite would also fit nicely on top of
  this pile"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (70 commits)
  lock_parent: don't step on stale ->d_parent of all-but-freed one
  kill generic_file_splice_write()
  ceph: switch to iter_file_splice_write()
  shmem: switch to iter_file_splice_write()
  nfs: switch to iter_splice_write_file()
  fs/splice.c: remove unneeded exports
  ocfs2: switch to iter_file_splice_write()
  ->splice_write() via ->write_iter()
  bio_vec-backed iov_iter
  optimize copy_page_{to,from}_iter()
  bury generic_file_aio_{read,write}
  lustre: get rid of messing with iovecs
  ceph: switch to ->write_iter()
  ceph_sync_direct_write: stop poking into iov_iter guts
  ceph_sync_read: stop poking into iov_iter guts
  new helper: copy_page_from_iter()
  fuse: switch to ->write_iter()
  btrfs: switch to ->write_iter()
  ocfs2: switch to ->write_iter()
  xfs: switch to ->write_iter()
  ...

1 files changed, 10 insertions, 15 deletions

diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 0ab7f7dfb98b..b5b593c45270 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1364,17 +1364,17 @@ static inline int mctime_update_needed(const struct inode *inode,
 
 /**
  * update_ctime - update mtime and ctime of an inode.
- * @c: UBIFS file-system description object
  * @inode: inode to update
  *
  * This function updates mtime and ctime of the inode if it is not equivalent to
  * current time. Returns zero in case of success and a negative error code in
  * case of failure.
  */
-static int update_mctime(struct ubifs_info *c, struct inode *inode)
+static int update_mctime(struct inode *inode)
 {
         struct timespec now = ubifs_current_time(inode);
         struct ubifs_inode *ui = ubifs_inode(inode);
+        struct ubifs_info *c = inode->i_sb->s_fs_info;
 
         if (mctime_update_needed(inode, &now)) {
                 int err, release;
@@ -1397,18 +1397,13 @@ static int update_mctime(struct ubifs_info *c, struct inode *inode)
         return 0;
 }
 
-static ssize_t ubifs_aio_write(struct kiocb *iocb, const struct iovec *iov,
-                               unsigned long nr_segs, loff_t pos)
+static ssize_t ubifs_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
-        int err;
-        struct inode *inode = iocb->ki_filp->f_mapping->host;
-        struct ubifs_info *c = inode->i_sb->s_fs_info;
-
-        err = update_mctime(c, inode);
+        int err = update_mctime(file_inode(iocb->ki_filp));
         if (err)
                 return err;
 
-        return generic_file_aio_write(iocb, iov, nr_segs, pos);
+        return generic_file_write_iter(iocb, from);
 }
 
 static int ubifs_set_page_dirty(struct page *page)
@@ -1582,15 +1577,15 @@ const struct inode_operations ubifs_symlink_inode_operations = {
 
 const struct file_operations ubifs_file_operations = {
         .llseek         = generic_file_llseek,
-        .read           = do_sync_read,
-        .write          = do_sync_write,
-        .aio_read       = generic_file_aio_read,
-        .aio_write      = ubifs_aio_write,
+        .read           = new_sync_read,
+        .write          = new_sync_write,
+        .read_iter      = generic_file_read_iter,
+        .write_iter     = ubifs_write_iter,
         .mmap           = ubifs_file_mmap,
         .fsync          = ubifs_fsync,
         .unlocked_ioctl = ubifs_ioctl,
         .splice_read    = generic_file_splice_read,
-        .splice_write   = generic_file_splice_write,
+        .splice_write   = iter_file_splice_write,
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = ubifs_compat_ioctl,
 #endif