1 files changed, 49 insertions, 0 deletions
diff --git a/fs/freevxfs/vxfs_kcompat.h b/fs/freevxfs/vxfs_kcompat.h
new file mode 100644
index 000000000000..342a4cc860f4
--- /dev/null
+++ b/fs/freevxfs/vxfs_kcompat.h
@@ -0,0 +1,49 @@
+#ifndef _VXFS_KCOMPAT_H
+#define _VXFS_KCOMPAT_H
+
+#include <linux/version.h>
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+
+#include <linux/blkdev.h>
+
+typedef long sector_t;
+
+/* From include/linux/fs.h (Linux 2.5.2-pre3)  */
+static inline struct buffer_head * sb_bread(struct super_block *sb, int block)
+{
+	return bread(sb->s_dev, block, sb->s_blocksize);
+}
+
+/* Dito.  */
+static inline void map_bh(struct buffer_head *bh, struct super_block *sb, int block)
+{
+	bh->b_state |= 1 << BH_Mapped;
+	bh->b_dev = sb->s_dev;
+	bh->b_blocknr = block;
+}
+
+/* From fs/block_dev.c (Linux 2.5.2-pre2)  */
+static inline int sb_set_blocksize(struct super_block *sb, int size)
+{
+	int bits;
+	if (set_blocksize(sb->s_dev, size) < 0)
+		return 0;
+	sb->s_blocksize = size;
+	for (bits = 9, size >>= 9; size >>= 1; bits++)
+		;
+	sb->s_blocksize_bits = bits;
+	return sb->s_blocksize;
+}
+
+/* Dito.  */
+static inline int sb_min_blocksize(struct super_block *sb, int size)
+{
+	int minsize = get_hardsect_size(sb->s_dev);
+	if (size < minsize)
+		size = minsize;
+	return sb_set_blocksize(sb, size);
+}
+
+#endif /* Kernel 2.4 */
+#endif /* _VXFS_KCOMPAT_H */