Re: booked-page-flag.patch

[Eric Sandeen <sandeen@redhat.com>]

Andrew Morton wrote:
> Sorry, we're seriously, seriously, seriously short on flags in the page
> struct and this patch is going to need one heck of a good case for it to be
> acceptable.

This was for the delayed allocation patchset, right; and by managing 
this at the page level that means we can't do this for block size < page 
size, I think...

There are already buffer head flags for delalloc (block to be allocated 
  on flush) and unwritten (actual block allocated to a file but not yet 
written) in the vfs - shouldn't we be looking at using those?

Unless there is a clear path from this patchset to one that supports 
blocks < page, I'm hesitant about it... but I know I'm being a bit of an 
armchair quarterback here, and I'll try to set aside some time to give 
this a better look.

Thanks,
-Eric