On Thu 24-08-17 06:38:09, Christoph Hellwig wrote:

On Thu, Aug 24, 2017 at 02:34:51PM +0200, Jan Kara wrote:

quoted

In a subtle but important way ;). The main difference is that if the extent
has been already allocated by previous write, but the changing transaction
is not yet committed, we will return IOMAP_F_NEEDDSYNC but not IOMAP_F_NEW.

Ok.  How about a IOMAP_F_DIRTY flag and a better explanation?

OK, will change it.

								Honza
-- 
Jan Kara [off-list ref]
SUSE Labs, CR