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Subject2K save for fs/ext2/fsync.c
Date
This patch saves 2K on little endian machines. It is against 2.1.29
(should work with 2.1.30 too).

-Andi

--- /u2/unpack/linux-clean/fs/ext2/fsync.c Sun Feb 2 11:48:12 1997
+++ fs/ext2/fsync.c Sat Mar 29 18:56:57 1997
@@ -13,10 +13,15 @@
*
* Big-endian to little-endian byte-swapping/bitmaps by
* David S. Miller (davem@caip.rutgers.edu), 1995
+ *
+ * Removed unnecessary code duplication for little endian machines
+ * and excessive __inline__s.
+ * Andi Kleen, 1997
*/

#include <asm/uaccess.h>
#include <asm/system.h>
+#include <asm/byteorder.h>

#include <linux/errno.h>
#include <linux/fs.h>
@@ -30,7 +35,7 @@
#define blocksize (EXT2_BLOCK_SIZE(inode->i_sb))
#define addr_per_block (EXT2_ADDR_PER_BLOCK(inode->i_sb))

-static __inline__ int sync_block (struct inode * inode, u32 * block, int wait)
+static int sync_block (struct inode * inode, u32 * block, int wait)
{
struct buffer_head * bh;
int tmp;
@@ -58,7 +63,8 @@
return 0;
}

-static __inline__ int sync_block_swab32 (struct inode * inode, u32 * block, int wait)
+#ifndef __LITTLE_ENDIAN
+static int sync_block_swab32 (struct inode * inode, u32 * block, int wait)
{
struct buffer_head * bh;
int tmp;
@@ -85,8 +91,12 @@
bh->b_count--;
return 0;
}
+#else
+#define sync_block_swab32 sync_block
+#endif

-static __inline__ int sync_iblock (struct inode * inode, u32 * iblock,
+
+static int sync_iblock (struct inode * inode, u32 * iblock,
struct buffer_head ** bh, int wait)
{
int rc, tmp;
@@ -109,7 +119,8 @@
return 0;
}

-static __inline__ int sync_iblock_swab32 (struct inode * inode, u32 * iblock,
+#ifndef __LITTLE_ENDIAN
+static int sync_iblock_swab32 (struct inode * inode, u32 * iblock,
struct buffer_head ** bh, int wait)
{
int rc, tmp;
@@ -131,9 +142,11 @@
return -1;
return 0;
}
+#else
+#define sync_iblock_swab32 sync_iblock
+#endif

-
-static __inline__ int sync_direct (struct inode * inode, int wait)
+static int sync_direct (struct inode * inode, int wait)
{
int i;
int rc, err = 0;
@@ -148,7 +161,7 @@
return err;
}

-static __inline__ int sync_indirect (struct inode * inode, u32 * iblock, int wait)
+static int sync_indirect (struct inode * inode, u32 * iblock, int wait)
{
int i;
struct buffer_head * ind_bh;
@@ -171,6 +184,7 @@
return err;
}

+#ifndef __LITTLE_ENDIAN
static __inline__ int sync_indirect_swab32 (struct inode * inode, u32 * iblock, int wait)
{
int i;
@@ -193,8 +207,11 @@
brelse (ind_bh);
return err;
}
+#else
+#define sync_indirect_swab32 sync_indirect
+#endif

-static __inline__ int sync_dindirect (struct inode * inode, u32 * diblock, int wait)
+static int sync_dindirect (struct inode * inode, u32 * diblock, int wait)
{
int i;
struct buffer_head * dind_bh;
@@ -217,6 +234,7 @@
return err;
}

+#ifndef __LITTLE_ENDIAN
static __inline__ int sync_dindirect_swab32 (struct inode * inode, u32 * diblock, int wait)
{
int i;
@@ -239,8 +257,11 @@
brelse (dind_bh);
return err;
}
+#else
+#define sync_dindirect_swab32 sync_dindirect
+#endif

-static __inline__ int sync_tindirect (struct inode * inode, u32 * tiblock, int wait)
+static int sync_tindirect (struct inode * inode, u32 * tiblock, int wait)
{
int i;
struct buffer_head * tind_bh;
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