On Wed, Oct 25, 2006 at 11:33:16PM -0400, Theodore Tso wrote:
On Thu, Oct 26, 2006 at 11:40:20AM +1000, David Chinner wrote:
We don't need to expose anything filesystem specific to userspace to
implement this. Online data movement (i.e. the defrag mechanism)
becomes something like:
On Oct 25, 2006 16:54 +0200, Jan Kara wrote:
I've just not yet decided how to handle indirect
blocks in case of relocation in the middle of the file. Should they be
relocated or shouldn't they? Probably they should be relocated at least
in case they are fully contained in relocated interval
On Oct 25, 2006 11:44 +0200, Andre Noll wrote:
Are you saying that ext3_set_bit() should simply be called with
ret_block as its first argument? If yes, that is what the revised
patch below does.
You might need to call ext3_set_bit_atomic() (as claim_block() does,
not sure.
@@ -1372,12
On Wed, Oct 25, 2006 at 01:00:52PM -0400, Jeff Garzik wrote:
On Wed, Oct 25, 2006 at 06:11:37PM +1000, David Chinner wrote:
On Wed, Oct 25, 2006 at 02:01:42AM -0400, Jeff Garzik wrote:
So how do you then get the generic interface to allocate blocks
specified by userspace race free?
On Thu, Oct 26, 2006 at 04:36:48PM +1000, David Chinner wrote:
Remember, I'm not just talking about defrag - I'm talking about
an interface that is actually useful to apps that might care
about how data is laid out on disk but the applications writers
don't know anyhting about how
On Thu, 2006-10-26 at 09:37 -0400, Theodore Tso wrote:
On Thu, Oct 26, 2006 at 04:36:48PM +1000, David Chinner wrote:
Remember, I'm not just talking about defrag - I'm talking about
an interface that is actually useful to apps that might care
about how data is laid out on disk but the
On Wed, 25 October 2006 14:41:18 -0400, Jeff Garzik wrote:
On Wed, Oct 25, 2006 at 08:36:56PM +0200, Jan Kara wrote:
Yes, but there's a question of the interface to this operation. How to
specify which indirect block I mean? Obviously we could introduce
separate call for remapping
On Thu, Oct 26, 2006 at 01:37:22PM +0200, Jan Kara wrote:
On Wed, Oct 25, 2006 at 01:00:52PM -0400, Jeff Garzik wrote:
We don't need to expose anything filesystem specific to userspace to
implement this. Online data movement (i.e. the defrag mechanism)
becomes something like:
do
