Revert "staging: kpc2000: Convert put_page() to put_user_page*()"

This reverts commit 8e7cb7352ec85e9e4fbbd7bfe6c5c5a6806f70e3.

Bharath writes:
	Could you drop this patch from the staging-next tree? This is
	because John is making some changes to the put_user_page*()
	functions. He has submitted a patch recently removing
	put_user_page_dirty() function which is being used in this
	patch. This might break the kernel build if John's patch gets
	merged in.

	I ll submit a patch once the put_user_page*() apis are fixed.

Reported-by: Bharath Vedartham <linux.bhar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/kpc2000/kpc_dma/fileops.c b/drivers/staging/kpc2000/kpc_dma/fileops.c
index f15e292..48ca88b 100644 (file)
--- a/drivers/staging/kpc2000/kpc_dma/fileops.c
+++ b/drivers/staging/kpc2000/kpc_dma/fileops.c
@@ -190,7 +190,9 @@ static int kpc_dma_transfer(struct dev_private_data *priv,
        sg_free_table(&acd->sgt);
  err_dma_map_sg:
  err_alloc_sg_table:
-       put_user_pages(acd->user_pages, acd->page_count);
+       for (i = 0 ; i < acd->page_count ; i++) {
+               put_page(acd->user_pages[i]);
+       }
  err_get_user_pages:
        kfree(acd->user_pages);
  err_alloc_userpages:
@@ -209,13 +211,16 @@ void  transfer_complete_cb(struct aio_cb_data *acd, size_t xfr_count, u32 flags)
        BUG_ON(acd->ldev == NULL);
        BUG_ON(acd->ldev->pldev == NULL);
 
+       for (i = 0 ; i < acd->page_count ; i++) {
+               if (!PageReserved(acd->user_pages[i])) {
+                       set_page_dirty(acd->user_pages[i]);
+               }
+       }
+
        dma_unmap_sg(&acd->ldev->pldev->dev, acd->sgt.sgl, acd->sgt.nents, acd->ldev->dir);
 
-       for (i = 0; i < acd->page_count; i++) {
-               if (!PageReserved(acd->user_pages[i]))
-                       put_user_pages_dirty(&acd->user_pages[i], 1);
-               else
-                       put_user_page(acd->user_pages[i]);
+       for (i = 0 ; i < acd->page_count ; i++) {
+               put_page(acd->user_pages[i]);
        }
 
        sg_free_table(&acd->sgt);