[dm-devel] Re: [RFC PATCH 1/4] convert block layer drivers to blkerr error values

[Mike Christie]

Jeff Garzik wrote:
> In general, I'm a bit worried about these changes, for two overall reasons:
> 
> 1) I didn't see any analysis of the ultimate end users of block layer 
> error values:  the filesystems.

The filesystems or helpers they use normally did not even check the 
-Exyz error they were getting except for -EOPNOTSUPPORTED. They 
typically use the uptodate bits on the bio or buffer head.

A greater discussion on what the FS's needed and what actions they 
should take would be good though, I agree. They never responded in the 
past so I thought the MD and DM were the only interested users for now. 
I will post to lkml or fs-devel next time. Sorry about that.