On Tue, Oct 14, 2014 at 02:21:28AM -0700, Christoph Hellwig wrote: > On Tue, Oct 14, 2014 at 03:27:11PM +1100, Dave Chinner wrote: > > Broken usage, IMO. If you are going to use the block layer ioctls to > > manipulate data int eh block device, you should be using direct Io > > for all your data IO to the block device. Otherwise, coherency > > problems occur.... > > I'd say BLKZEROOUT semantics are broken. Having an ioctl exposed > that maniulates on-disk data without cache coherence is a nightmare > that people trip over easily. Even experienced people like Darrick. I'm definitely with Christoph on this one. Coherent writes should be the norm. - z -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
