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

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Pull vfs fix from Al Viro:
 "Braino fix for iov_iter_revert() misuse"

* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix braino in generic_file_read_iter()
This commit is contained in:
Linus Torvalds 2017-05-09 09:01:21 -07:00
commit 339fbf6796
2 changed files with 3 additions and 1 deletions
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2
mm/filemap.c
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@ -2050,7 +2050,7 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
iocb->ki_pos += retval;
count -= retval;
}
iov_iter_revert(iter, iov_iter_count(iter) - count);
iov_iter_revert(iter, count - iov_iter_count(iter));
/*
* Btrfs can have a short DIO read if we encounter