LU-13799 llite: Adjust dio refcounting

[fs/lustre-release.git] / lustre / llite / vvp_page.c

diff --git a/lustre/llite/vvp_page.c b/lustre/llite/vvp_page.c
index 959f668..3a3bc9e 100644 (file)
--- a/lustre/llite/vvp_page.c
+++ b/lustre/llite/vvp_page.c
@@ -478,16 +478,20 @@ int vvp_page_init(const struct lu_env *env, struct cl_object *obj,
        vpg->vpg_page = vmpage;
        get_page(vmpage);
 
-       if (page->cp_type == CPT_CACHEABLE) {
+       if (page->cp_type == CPT_TRANSIENT) {
+               /* DIO pages are referenced by userspace, we don't need to take
+                * a reference on them. (contrast with get_page() call above)
+                */
+               cl_page_slice_add(page, &vpg->vpg_cl, obj,
+                                 &vvp_transient_page_ops);
+       } else {
                /* in cache, decref in vvp_page_delete */
                atomic_inc(&page->cp_ref);
                SetPagePrivate(vmpage);
                vmpage->private = (unsigned long)page;
                cl_page_slice_add(page, &vpg->vpg_cl, obj,
                                &vvp_page_ops);
-       } else {
-               cl_page_slice_add(page, &vpg->vpg_cl, obj,
-                                 &vvp_transient_page_ops);
        }
+
        return 0;
 }