1 files changed, 8 insertions, 3 deletions

diff --git a/mm/filemap.c b/mm/filemap.c
index 7332194d7afd..c11418dd94e8 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1851,8 +1851,11 @@ generic_file_direct_write(struct kiocb *iocb, const struct iovec *iov,
          * i_sem is held, which protects generic_osync_inode() from
          * livelocking.
          */
-        if (written >= 0 && file->f_flags & O_SYNC)
-                generic_osync_inode(inode, mapping, OSYNC_METADATA);
+        if (written >= 0 && ((file->f_flags & O_SYNC) || IS_SYNC(inode))) {
+                int err = generic_osync_inode(inode, mapping, OSYNC_METADATA);
+                if (err < 0)
+                        written = err;
+        }
         if (written == count && !is_sync_kiocb(iocb))
                 written = -EIOCBQUEUED;
         return written;
@@ -1951,7 +1954,9 @@ generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov,
                                 if (unlikely(nr_segs > 1)) {
                                         filemap_set_next_iovec(&cur_iov,
                                                         &iov_base, status);
-                                        buf = cur_iov->iov_base + iov_base;
+                                        if (count)
+                                                buf = cur_iov->iov_base +
+                                                        iov_base;
                                 } else {
                                         iov_base += status;
                                 }