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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
commit fed41f7d03
5 changed files with 8 additions and 14 deletions
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2
fs/btrfs/inode.c
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@ -8619,7 +8619,7 @@ static ssize_t check_direct_IO(struct btrfs_root *root, struct kiocb *iocb,
goto out;
/* If this is a write we don't need to check anymore */
if (iov_iter_rw(iter) == WRITE)
if (iov_iter_rw(iter) != READ || !iter_is_iovec(iter))
return 0;
/*
* Check to make sure we don't have duplicate iov_base's in this