From 2d608bc9603b173015215fb9cd250a4ec723a857 Mon Sep 17 00:00:00 2001
From: anserper <anserper>
Date: Thu, 24 Jul 2008 08:59:01 +0000
Subject: [PATCH] Branch HEAD b=16415 i=Andreas Dilger (adilger) i=Sergey
(deen)
Increase number of clients from 32768 to 131072
---
lustre/include/lustre_disk.h | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/lustre/include/lustre_disk.h b/lustre/include/lustre_disk.h
index 0b7a84bedf..7406db246a 100644
--- a/lustre/include/lustre_disk.h
+++ b/lustre/include/lustre_disk.h
@@ -166,9 +166,18 @@ struct lustre_mount_data {
#if LR_CLIENT_START < LR_SERVER_SIZE
#error "Can't have LR_CLIENT_START < LR_SERVER_SIZE"
#endif
-/* This limit is arbitrary (32k clients on x86), but it is convenient to use
- * 2^n * CFS_PAGE_SIZE * 8 for the number of bits that fit an order-n allocation. */
+
+/*
+ * This limit is arbitrary (131072 clients on x86), but it is convenient to use
+ * 2^n * CFS_PAGE_SIZE * 8 for the number of bits that fit an order-n allocation.
+ * If we need more than 131072 clients (order-2 allocation on x86) then this
+ * should become an array of single-page pointers that are allocated on demand.
+ */
+#if (128 * 1024UL) > (CFS_PAGE_SIZE * 8)
+#define LR_MAX_CLIENTS (128 * 1024UL)
+#else
#define LR_MAX_CLIENTS (CFS_PAGE_SIZE * 8)
+#endif
/* COMPAT_146 */
#define OBD_COMPAT_OST 0x00000002 /* this is an OST (temporary) */
--
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