LU-13669 llite: make readahead aware of hints

[fs/lustre-release.git] / lustre / include / cl_object.h

diff --git a/lustre/include/cl_object.h b/lustre/include/cl_object.h
index c0f0840..05c89eb 100644 (file)
--- a/lustre/include/cl_object.h
+++ b/lustre/include/cl_object.h
@@ -741,6 +741,12 @@ struct cl_page {
        struct cl_object        *cp_obj;
        /** vmpage */
        struct page             *cp_vmpage;
+       /**
+        * Assigned if doing direct IO, because in this case cp_vmpage is not
+        * a valid page cache page, hence the inode cannot be inferred from
+        * cp_vmpage->mapping->host.
+        */
+       struct inode            *cp_inode;
        /** Linkage of pages within group. Pages must be owned */
        struct list_head        cp_batch;
        /** array of slices offset. Immutable after creation. */
@@ -1958,7 +1964,15 @@ struct cl_io {
         * the read IO will check to-be-read OSCs' status, and make fast-switch
         * another mirror if some of the OSTs are not healthy.
         */
-                            ci_tried_all_mirrors:1;
+                            ci_tried_all_mirrors:1,
+       /**
+        * Random read hints, readahead will be disabled.
+        */
+                            ci_rand_read:1,
+       /**
+        * Sequential read hints.
+        */
+                            ci_seq_read:1;
        /**
         * Bypass quota check
         */