[Linux-NTFS-cvs] CVS: ntfsprogs/libntfs bitmap.c,1.18,1.19

[Anton A. <an...@us...>]

Changes by: antona

Update of /cvsroot/linux-ntfs/ntfsprogs/libntfs
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv20763/libntfs

Modified Files:
	bitmap.c 
Log Message:
Fix stupid bug in libntfs/bitmap.c::ntfs_bitmap_set_bits_in_run()
which caused bits to not be cleared or set if the first bit in the
run was not a multiple of eight.  (Anton)


Index: bitmap.c
===================================================================
RCS file: /cvsroot/linux-ntfs/ntfsprogs/libntfs/bitmap.c,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -p -r1.18 -r1.19
--- bitmap.c	2 Nov 2005 17:34:08 -0000	1.18
+++ bitmap.c	2 Feb 2006 13:57:00 -0000	1.19
@@ -162,7 +162,14 @@ static __inline__ int ntfs_bitmap_set_bi
 
 		/* Update counters. */
 		tmp = (bufsize - firstbyte - lastbyte) << 3;
-		firstbyte = 0;
+		if (firstbyte) {
+			firstbyte = 0;
+			/*
+			 * Re-set the partial first byte so a subsequent write
+			 * of the buffer does not have stale, incorrect bits.
+			 */
+			*buf = value ? 0xff : 0;
+		}
 		start_bit += tmp;
 		count -= tmp;
 		if (bufsize > (tmp = (count + 7) >> 3))