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

This reverts commit 8e7cb7352e.

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>
This commit is contained in:
Greg Kroah-Hartman 2019-07-31 07:28:04 +02:00
parent 04d15d5cad
commit 9a675a13c3
1 changed files with 11 additions and 6 deletions
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17
drivers/staging/kpc2000/kpc_dma/fileops.c
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@ -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);