int bluesky_watermark_high_dirty = (192 << 20) / BLUESKY_BLOCK_SIZE;
int bluesky_watermark_low_total = (64 << 20) / BLUESKY_BLOCK_SIZE;
int bluesky_watermark_medium_total = (128 << 20) / BLUESKY_BLOCK_SIZE;
int bluesky_watermark_high_dirty = (192 << 20) / BLUESKY_BLOCK_SIZE;
int bluesky_watermark_low_total = (64 << 20) / BLUESKY_BLOCK_SIZE;
int bluesky_watermark_medium_total = (128 << 20) / BLUESKY_BLOCK_SIZE;