LU-5 readdir read multiple pages per rpc

[fs/lustre-release.git] / lustre / include / linux / lustre_compat25.h

diff --git a/lustre/include/linux/lustre_compat25.h b/lustre/include/linux/lustre_compat25.h
index a1291c9..0a8ce3c 100644 (file)
--- a/lustre/include/linux/lustre_compat25.h
+++ b/lustre/include/linux/lustre_compat25.h
@@ -30,6 +30,9 @@
  * Use is subject to license terms.
  */
 /*
+ * Copyright (c) 2011 Whamcloud, Inc.
+ */
+/*
  * This file is part of Lustre, http://www.lustre.org/
  * Lustre is a trademark of Sun Microsystems, Inc.
  */
@@ -837,5 +840,23 @@ static inline int ll_quota_off(struct super_block *sb, int off, int remount)
 #define bio_hw_segments(q, bio) 0
 #endif
 
+#ifndef HAVE_PAGEVEC_LRU_ADD_FILE
+#define pagevec_lru_add_file pagevec_lru_add
+#endif
+
+#ifdef HAVE_ADD_TO_PAGE_CACHE_LRU
+#define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
+        add_to_page_cache_lru(pg, mapping, off, gfp)
+#define ll_pagevec_init(pv, cold)       do {} while (0)
+#define ll_pagevec_add(pv, pg)          (0)
+#define ll_pagevec_lru_add_file(pv)     do {} while (0)
+#else
+#define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
+        add_to_page_cache(pg, mapping, off, gfp)
+#define ll_pagevec_init(pv, cold)       pagevec_init(&lru_pvec, cold);
+#define ll_pagevec_add(pv, pg)          pagevec_add(pv, pg)
+#define ll_pagevec_lru_add_file(pv)     pagevec_lru_add_file(pv)
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* _COMPAT25_H */