From 3cfb4590eb5758244df4decde03b9bceb9c73636 Mon Sep 17 00:00:00 2001
From: "cantab.net!aia21" <cantab.net!aia21>
Date: Fri, 12 Mar 2004 17:25:04 +0000
Subject: [PATCH] Provide new API functions: ntfs_bitmap_{set,clear}_bit().

(Logical change 1.327)
---
 include/ntfs/bitmap.h | 32 +++++++++++++++++++++++++++++---
 libntfs/bitmap.c      |  5 ++---
 2 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/include/ntfs/bitmap.h b/include/ntfs/bitmap.h
index 3f2694b2..c18aa43b 100644
--- a/include/ntfs/bitmap.h
+++ b/include/ntfs/bitmap.h
@@ -1,7 +1,7 @@
 /*
  * bitmap.h - Exports for bitmap handling. Part of the Linux-NTFS project.
  *
- * Copyright (c) 2000-2003 Anton Altaparmakov
+ * Copyright (c) 2000-2004 Anton Altaparmakov
  *
  * This program/include file is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as published
@@ -46,7 +46,6 @@
 static __inline__ void ntfs_bit_set(u8 *bitmap, const u64 bit,
 		const u8 new_value)
 {
-//	Dprintf("bitmap %p, bit 0x%llx, new_value %i\n", bitmap, bit, new_value);
 	if (!bitmap || new_value > 1)
 		return;
 	if (!new_value)
@@ -103,5 +102,32 @@ static __inline__ char ntfs_bit_get_and_set(u8 *bitmap, const u64 bit,
 extern int ntfs_bitmap_set_run(ntfs_attr *na, s64 start_bit, s64 count);
 extern int ntfs_bitmap_clear_run(ntfs_attr *na, s64 start_bit, s64 count);
 
-#endif /* defined _NTFS_BITMAP_H */
+/**
+ * ntfs_bitmap_set_bit - set a bit in a bitmap
+ * @na:		attribute containing the bitmap
+ * @bit:	bit to set
+ *
+ * Set the @bit in the bitmap described by the attribute @na.
+ *
+ * On success return 0 and on error return -1 with errno set to the error code.
+ */
+static __inline__ int ntfs_bitmap_set_bit(ntfs_attr *na, s64 bit)
+{
+	return ntfs_bitmap_set_run(na, bit, 1);
+}
 
+/**
+ * ntfs_bitmap_clear_bit - clear a bit in a bitmap
+ * @na:		attribute containing the bitmap
+ * @bit:	bit to clear
+ *
+ * Clear @bit in the bitmap described by the attribute @na.
+ *
+ * On success return 0 and on error return -1 with errno set to the error code.
+ */
+static __inline__ int ntfs_bitmap_clear_bit(ntfs_attr *na, s64 bit)
+{
+	return ntfs_bitmap_clear_run(na, bit, 1);
+}
+
+#endif /* defined _NTFS_BITMAP_H */
diff --git a/libntfs/bitmap.c b/libntfs/bitmap.c
index 23c7807e..8eda13e0 100644
--- a/libntfs/bitmap.c
+++ b/libntfs/bitmap.c
@@ -43,8 +43,8 @@
  *
  * On success return 0 and on error return -1 with errno set to the error code.
  */
-static int ntfs_bitmap_set_bits_in_run(ntfs_attr *na, s64 start_bit, s64 count,
-		int value)
+static __inline__ int ntfs_bitmap_set_bits_in_run(ntfs_attr *na, s64 start_bit,
+		s64 count, int value)
 {
 	s64 bufsize, br;
 	u8 *buf, *lastbyte_buf;
@@ -212,4 +212,3 @@ int ntfs_bitmap_clear_run(ntfs_attr *na, s64 start_bit, s64 count)
 {
 	return ntfs_bitmap_set_bits_in_run(na, start_bit, count, 0);
 }
-