On Wed, Sep 24, 2014 at 05:09:11PM +0200, Miklos Szeredi wrote: > From: Miklos Szeredi <[email protected]> > > The third argument of fuse_get_user_pages() "nbytesp" refers to the number of > bytes a caller asked to pack into fuse request. This value may be lesser > than capacity of fuse request or iov_iter. So fuse_get_user_pages() must > ensure that *nbytesp won't grow. > > Now, when helper iov_iter_get_pages() performs all hard work of extracting > pages from iov_iter, it can be done by passing properly calculated > "maxsize" to the helper. > > The other caller of iov_iter_get_pages() (dio_refill_pages()) doesn't need > this capability, so pass LONG_MAX as the maxsize argument here. > > Fixes: c9c37e2e6378 ("fuse: switch to iov_iter_get_pages()") > Reported-by: Werner Baumann <[email protected]> > Tested-by: Maxim Patlasov <[email protected]> > Signed-off-by: Miklos Szeredi <[email protected]>
Applied, will be in tonight pull request. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
