From 329272195e0bdff915a46dff766fbed4fb2beb07 Mon Sep 17 00:00:00 2001
From: yangsheng <yangsheng>
Date: Wed, 17 Dec 2008 06:03:00 +0000
Subject: [PATCH] Branch b1_6 b=17459 i=adilger, bobijam

Make change to ext2_* api for BIG-ENDIAN environment.
---
 lustre/include/liblustre.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/lustre/include/liblustre.h b/lustre/include/liblustre.h
index dc1e481..c3f9b53 100644
--- a/lustre/include/liblustre.h
+++ b/lustre/include/liblustre.h
@@ -210,17 +210,30 @@ typedef int (write_proc_t)(struct file *file, const char *buffer,
 
 static __inline__ int ext2_set_bit(int nr, void *addr)
 {
+#ifdef __BIG_ENDIAN
+        return set_bit((nr ^ ((BITS_PER_LONG-1) & ~0x7)), addr);
+#else
         return set_bit(nr, addr);
+#endif
 }
 
 static __inline__ int ext2_clear_bit(int nr, void *addr)
 {
+#ifdef __BIG_ENDIAN
+        return clear_bit((nr ^ ((BITS_PER_LONG-1) & ~0x7)), addr);
+#else
         return clear_bit(nr, addr);
+#endif
 }
 
 static __inline__ int ext2_test_bit(int nr, void *addr)
 {
+#ifdef __BIG_ENDIAN
+        __const__ unsigned char *tmp = (__const__ unsigned char *) addr;
+        return (tmp[nr >> 3] >> (nr & 7)) & 1;
+#else
         return test_bit(nr, addr);
+#endif
 }
 
 /* modules */
-- 
1.8.3.1