Re: [PATCH 008 of 8] md/bitmap: Change md/bitmap file handling touse bmap to file blocks.

[Paul Clements]

Andrew Morton wrote:

> The loss of pagecache coherency seems sad.  I assume there's never a
> requirement for userspace to read this file.

Actually, there is. mdadm reads the bitmap file, so that would be 
broken. Also, it's just useful for a user to be able to read the bitmap 
(od -x, or similar) to figure out approximately how much more he's got 
to resync to get an array in-sync. Other than reading the bitmap file, I 
don't know of any way to determine that.

--
Paul

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/