On 6/15/23 08:48, Christoph Hellwig wrote:
The support for write intent bitmaps in files on an external files in md is a hot mess that abuses ->bmap to map file offsets into physical device objects, and also abuses buffer_heads in a creative way. Make this code optional so that MD can be built into future kernels without buffer_head support, and so that we can eventually deprecate it. Note this does not affect the internal bitmap support, which has none of the problems. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- drivers/md/Kconfig | 10 ++++++++++ drivers/md/md-bitmap.c | 15 +++++++++++++++ drivers/md/md.c | 7 +++++++ 3 files changed, 32 insertions(+)
Reviewed-by: Hannes Reinecke <hare@xxxxxxx> Cheers, Hannes
