Messages in this thread | | | Date | Wed, 8 Jul 2009 08:40:56 -0400 | From | Christoph Hellwig <> | Subject | Re: [rfc][patch 3/4] fs: new truncate sequence |
| |
On Wed, Jul 08, 2009 at 02:34:12PM +0200, Nick Piggin wrote: > On Wed, Jul 08, 2009 at 06:47:01AM -0400, Christoph Hellwig wrote: > > On Wed, Jul 08, 2009 at 08:32:25AM +0200, Nick Piggin wrote: > > > Thanks for the patch, I think I will fold it in to the series. I > > > think we probably do need to call simple_setsize in inode_setattr > > > though (unless you propose to eventually convert every filesystem > > > to define a .setattr). This would also require eg. your ext2 > > > conversion to strip ATTR_SIZE before passing through to inode_setattr. > > > > Yes, we should eventually make .setattr mandatory. Doing a default > > action when a method lacks tends to cause more issues than it solves. > > > > I'm happy to help in doing that part of the conversion (and also other > > bits) > > OK well here is what I have now for 3/4 and 4/4. Basically just > folded your patch on top, changed ordering of some checks, have > fs clear ATTR_SIZE before calling inode_setattr, add a .new_truncate > field to check against rather than .truncate, and provide a default > ATTR_SIZE handler in inode_setattr (simple_setsize).
Can we leave that last part out? Converting those filesystems that do not have a ->truncate method to a trivial ->setattr is easy, and I can do it pretty soon (next week probably).
That allows us to get rid of all that ATTR_SIZE clearing which is pretty ugly.
> + * > + * Filesystems which define i_op->new_truncate must > + * handle this themselves. Eventually this will go > + * away because everyone will be converted.
s/define/set/ ?
| |