From: Howard Chu <hyc@symas.com>
Date: Sat, 3 Mar 2012 01:26:49 +0000 (-0800)
Subject: ITS#7196 use IOV_MAX if it's defined and small
X-Git-Tag: OPENLDAP_REL_ENG_2_4_32~125^2~42
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=1b07b48c1abef0e5fdec19b0734fbf4bb1035f46;p=openldap

ITS#7196 use IOV_MAX if it's defined and small
---

diff --git a/libraries/libmdb/mdb.c b/libraries/libmdb/mdb.c
index 925aae6a9f..f028ecb286 100644
--- a/libraries/libmdb/mdb.c
+++ b/libraries/libmdb/mdb.c
@@ -947,6 +947,10 @@ struct MDB_env {
 };
 	/** max number of pages to commit in one writev() call */
 #define MDB_COMMIT_PAGES	 64
+#if defined(IOV_MAX) && IOV_MAX < MDB_COMMIT_PAGES
+#undef MDB_COMMIT_PAGES
+#define MDB_COMMIT_PAGES	IOV_MAX
+#endif
 
 static MDB_page *mdb_page_alloc(MDB_cursor *mc, int num);
 static MDB_page *mdb_page_new(MDB_cursor *mc, uint32_t flags, int num);