static void user_sdma_free_request(struct user_sdma_request *, bool);
static int pin_vector_pages(struct user_sdma_request *,
struct user_sdma_iovec *);
-static void unpin_vector_pages(struct mm_struct *, struct page **, unsigned);
+static void unpin_vector_pages(struct mm_struct *, struct page **, unsigned,
+ unsigned);
static int check_header_template(struct user_sdma_request *,
struct hfi1_pkt_header *, u32, u32);
static int set_txreq_header(struct user_sdma_request *,
goto bail;
}
if (pinned != npages) {
- unpin_vector_pages(current->mm, pages, pinned);
+ unpin_vector_pages(current->mm, pages, node->npages,
+ pinned);
ret = -EFAULT;
goto bail;
}
}
static void unpin_vector_pages(struct mm_struct *mm, struct page **pages,
- unsigned npages)
+ unsigned start, unsigned npages)
{
- hfi1_release_user_pages(mm, pages, npages, 0);
+ hfi1_release_user_pages(mm, pages + start, npages, 0);
kfree(pages);
}
* prevent a deadlock when hfi1_release_user_pages() attempts to
* take the mmap_sem, which the MMU notifier has already taken.
*/
- unpin_vector_pages(mm ? NULL : current->mm, node->pages, node->npages);
+ unpin_vector_pages(mm ? NULL : current->mm, node->pages, 0,
+ node->npages);
/*
* If called by the MMU notifier, we have to adjust the pinned
* page count ourselves.