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

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Pull splice fixups from Al Viro:
 "A couple of fixups for interaction of pipe-backed iov_iter with
  O_DIRECT reads + constification of a couple of primitives in uio.h
  missed by previous rounds.

  Kudos to davej - his fuzzing has caught those bugs"

* 'work.splice_read' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  [btrfs] fix check_direct_IO() for non-iovec iterators
  constify iov_iter_count() and iter_is_iovec()
  fix ITER_PIPE interaction with direct_IO
This commit is contained in:
Linus Torvalds
2016-10-10 13:38:49 -07:00
parent abb5a14fa2 cd27e45504
commit fed41f7d03
5 changed files with 8 additions and 14 deletions
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2
mm/filemap.c
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@@ -1941,7 +1941,7 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
file_accessed(file);
retval = mapping->a_ops->direct_IO(iocb, &data);
if (retval > 0) {
if (retval >= 0) {
iocb->ki_pos += retval;
iov_iter_advance(iter, retval);
}