On Fri 30-09-16 01:22:33, Ted Tso wrote:
> I've been looking at your patch and testing it, and it looks like
> works fine as-is.
Glad to hear that!
> The other thing I like about this patch is it allows us to drop
> ext4_inode_{block,resume}_unlocked_dio() and EXT4_STATE_DIOREAD_LOCK.
Well, not completely - we still need to deal with unlocked writes that
happen in ext4_direct_IO_write() when overwrite == 1. But that should be
doable in a similar way. We could just demote inode_lock to a shared mode
instead of dropping it in ext4_direct_IO_write() and then we could drop the
bits you mention above. I can look into that when I'll be looking into
converting ext4 into the new iomap infrastructure but that's definitely
material for the next merge window.
Honza
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR
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