modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/infiniband/hw/qib/qib_user_sdma.c
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@@ -225,8 +225,6 @@
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 	if (sdma_rb_node) {
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 		sdma_rb_node->refcount++;
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 	} else {
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-		int ret;
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-
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 		sdma_rb_node = kmalloc(sizeof(
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 			struct qib_user_sdma_rb_node), GFP_KERNEL);
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 		if (!sdma_rb_node)
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@@ -235,9 +233,7 @@
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 		sdma_rb_node->refcount = 1;
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 		sdma_rb_node->pid = current->pid;
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-		ret = qib_user_sdma_rb_insert(&qib_user_sdma_rb_root,
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-					sdma_rb_node);
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-		BUG_ON(ret == 0);
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+		qib_user_sdma_rb_insert(&qib_user_sdma_rb_root, sdma_rb_node);
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 	}
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 	pq->sdma_rb_node = sdma_rb_node;
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@@ -321,7 +317,7 @@
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 		 * the caller can ignore this page.
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 		 */
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 		if (put) {
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-			put_page(page);
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+			unpin_user_page(page);
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 		} else {
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 			/* coalesce case */
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 			kunmap(page);
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@@ -635,7 +631,7 @@
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 			kunmap(pkt->addr[i].page);
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 		if (pkt->addr[i].put_page)
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-			put_page(pkt->addr[i].page);
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+			unpin_user_page(pkt->addr[i].page);
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 		else
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 			__free_page(pkt->addr[i].page);
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 	} else if (pkt->addr[i].kvaddr) {
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@@ -674,7 +670,7 @@
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 		else
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 			j = npages;
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-		ret = get_user_pages_fast(addr, j, 0, pages);
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+		ret = pin_user_pages_fast(addr, j, FOLL_LONGTERM, pages);
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 		if (ret != j) {
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 			i = 0;
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 			j = ret;
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@@ -710,7 +706,7 @@
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 	/* if error, return all pages not managed by pkt */
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 free_pages:
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 	while (i < j)
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-		put_page(pages[i++]);
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+		unpin_user_page(pages[i++]);
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 done:
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 	return ret;