Re: [PATCH] block: Fix dio_bio_alloc() to set BIO_PAGE_PINNED

[David Howells]

 static inline void dio_cleanup(struct dio *dio, struct dio_submit *sdio)
 {
-       while (sdio->head < sdio->tail)
-               put_page(dio->pages[sdio->head++]);
+       if (dio->is_pinned)
+               unpin_user_pages(dio->pages + sdio->head,
+                                sdio->tail - sdio->head);
 }
 
 /*

Meh.  It's obvious.  Need to advance head.

David