Arne,
thanks for your comments.
On Tue, Jul 17, 2012 at 10:25 PM, Arne Jansen sensi...@gmx.net wrote:
On 07/17/2012 08:33 PM, Alex Lyakas wrote:
Jan,
I have studied to some extent the PDF and the code. I have some
questions; perhaps you can address them?
1) btrfs_qgroup_account_ref()
Jan,
I have studied to some extent the PDF and the code. I have some
questions; perhaps you can address them?
1) btrfs_qgroup_account_ref() calling btrfs_find_all_roots():
I understand that bytenr indicates some EXTENT_ITEM, which is a
back-reference for extent, which is perhaps a tree block
On 07/17/2012 08:33 PM, Alex Lyakas wrote:
Jan,
I have studied to some extent the PDF and the code. I have some
questions; perhaps you can address them?
1) btrfs_qgroup_account_ref() calling btrfs_find_all_roots():
I understand that bytenr indicates some EXTENT_ITEM, which is a
On 17.07.2012 21:25, Arne Jansen wrote:
On 07/17/2012 08:33 PM, Alex Lyakas wrote:
extent? Also, how do we encounter roots (which is what we need in the
output) during this walking? Hope you can shed some light, or you can
iirc the root backreferences itself, which is the criterion that we
This is a new version of Arne's qgroup patches from last October. The
old patches didn't get the backref walking right, which is now based on
the tree modification log.
You can limit the space available to subvolumes or any group of
subvolumes. You can determine the amount of space that will get
