On Mon, May 23, 2005 at 03:17:44AM -0700, Pete Zaitcev wrote:
> On Mon, 23 May 2005 05:19:52 -0400, Glenn Maynard <[EMAIL PROTECTED]> wrote:
> 
> > By the way, I've found a temporary workaround, in case anyone needs it:
> > mount the filesystem through a loop device (-o loop), and BLKBSZSET the
> > underlying uba partition to 4k; this brings speed back up to 400k/sec.
> 
> I did it without any loop mount, but your problem is that FAT resets the
> block size when you mount. Giving msdos(-fs) a loop fools it into resetting
> the block side of the loop device instead.

Setting up a loopback also resets the block size (to 1k, it looks like).
The difference is that when mounting without loop, BLKBSZSET fails with
EBUSY, but with loop, I can change the block size *after* mounting.

> It was discussed here:
>  http://lkml.org/lkml/2005/2/21/136

Yeah, that's the thread I linked previously.

-- 
Glenn Maynard


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