Messages in this thread |  | | Date | Wed, 16 Aug 2017 14:12:44 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCH v5 4/5] fs, xfs: introduce MAP_DIRECT for creating block-map-atomic file ranges |
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On Wed, Aug 16, 2017 at 12:44:28AM -0700, Dan Williams wrote: > @@ -1411,6 +1422,9 @@ unsigned long do_mmap(struct file *file, unsigned long addr, > > /* fall through */ > case MAP_PRIVATE: > + if ((flags & (MAP_PRIVATE|MAP_DIRECT)) > + == (MAP_PRIVATE|MAP_DIRECT)) > + return -EINVAL;
We've already checked for MAP_PRIVATE in this codepath. Simple (flags & MAP_DIRECT) would be enough.
-- Kirill A. Shutemov
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