Re: Can a non-sg scsi write command be more than PAGE_SIZE length?

[Christoph Hellwig]

On Tue, Apr 19, 2005 at 11:24:31AM +0200, Olivier Galibert wrote:
> > Yes, it's allowed.
> 
> Thanks.  Pages in that case are continuous then, right?

Good question actually.  I know XFS does passed vmalloc'ed memory down
the block I/O path, but that's as a scatter/gather request.  All non-s/g
request should be contingous I think.

We really need to write down the rules about what memory can be passed
down the block I/O path - XFS for example sends kmalloced memory down
which all the iSCSI implementations don't like at all.
-
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/