On Mon, Nov 1, 2010 at 8:40 PM, Tracey Dent <tdent48227@xxxxxxxxx> wrote:
> Adding files to yaffs2 directory.
>
> Signed-off-by: Tracey Dent <tdent48227@xxxxxxxxx>
> ---
> drivers/staging/yaffs2/yaffs_bitmap.c | 105 +++++++++++++++++++++++++++++++++
> drivers/staging/yaffs2/yaffs_bitmap.h | 33 ++++++++++
> 2 files changed, 138 insertions(+), 0 deletions(-)
> create mode 100644 drivers/staging/yaffs2/yaffs_bitmap.c
> create mode 100644 drivers/staging/yaffs2/yaffs_bitmap.h
>
> diff --git a/drivers/staging/yaffs2/yaffs_bitmap.c b/drivers/staging/yaffs2/yaffs_bitmap.c
> new file mode 100644
> index 0000000..85c8c1d
> --- /dev/null
> +++ b/drivers/staging/yaffs2/yaffs_bitmap.c
> @@ -0,0 +1,105 @@
> +/*
> + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
> + *
> + * Copyright (C) 2002-2010 Aleph One Ltd.
> + * for Toby Churchill Ltd and Brightstar Engineering
> + *
> + * Created by Charles Manning <charles@xxxxxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include "yaffs_bitmap.h"
> +#include "yaffs_trace.h"
> +/*
> + * Chunk bitmap manipulations
> + */
> +
> +static Y_INLINE __u8 *yaffs_block_bits(yaffs_dev_t *dev, int blk)
> +{
> + if (blk < dev->internal_start_block || blk > dev->internal_end_block) {
> + T(YAFFS_TRACE_ERROR,
> + (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
> + blk));
> + YBUG();
> + }
> + return dev->chunk_bits +
> + (dev->chunk_bit_stride * (blk - dev->internal_start_block));
> +}
We have <linux/bitmap.h>. You should probably use it.
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