On 06/16/2013 02:26 PM, Benjamin Herrenschmidt wrote:
+#if defined(CONFIG_SPARSEMEM_VMEMMAP) || defined(CONFIG_FLATMEM)
+int realmode_get_page(struct page *page)
+{
+if (PageCompound(page))
+return -EAGAIN;
+
+get_page(page);
+
+return 0;
+}
+#if defined(CONFIG_SPARSEMEM_VMEMMAP) || defined(CONFIG_FLATMEM)
+int realmode_get_page(struct page *page)
+{
+ if (PageCompound(page))
+ return -EAGAIN;
+
+ get_page(page);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(realmode_get_page);
+
+int
On Sun, 2013-06-16 at 14:26 +1000, Benjamin Herrenschmidt wrote:
+int realmode_get_page(struct page *page)
+{
+ if (PageCompound(page))
+ return -EAGAIN;
+
+ get_page(page);
+
+ return 0;
+}
Shouldn't it be get_page_unless_zero ?
Cheers,
Ben.
--
To
The current VFIO-on-POWER implementation supports only user mode
driven mapping, i.e. QEMU is sending requests to map/unmap pages.
However this approach is really slow, so we want to move that to KVM.
Since H_PUT_TCE can be extremely performance sensitive (especially with
network adapters where
The current VFIO-on-POWER implementation supports only user mode
driven mapping, i.e. QEMU is sending requests to map/unmap pages.
However this approach is really slow, so we want to move that to KVM.
Since H_PUT_TCE can be extremely performance sensitive (especially with
network adapters where
