Displaying 2 results from an estimated 2 matches for "drop_reference".
2009 Jul 07
0
[PATCH] speed up snapshot dropping
...ee.c 2/fs/btrfs/extent-tree.c
--- 1/fs/btrfs/extent-tree.c 2009-07-03 08:08:34.152846801 +0800
+++ 2/fs/btrfs/extent-tree.c 2009-07-03 14:34:50.455818000 +0800
@@ -4568,11 +4568,6 @@ struct walk_control {
/*
* hepler to process tree block while walking down the tree.
*
- * when wc->stage == DROP_REFERENCE, this function checks
- * reference count of the block. if the block is shared and
- * we need update back refs for the subtree rooted at the
- * block, this function changes wc->stage to UPDATE_BACKREF
- *
* when wc->stage == UPDATE_BACKREF, this function updates
* back refs for pointers...
2011 Oct 06
26
[PATCH v0 00/18] btfs: Subvolume Quota Groups
This is a first draft of a subvolume quota implementation. It is possible
to limit subvolumes and any group of subvolumes and also to track the amount
of space that will get freed when deleting snapshots.
The current version is functionally incomplete, with the main missing feature
being the initial scan and rescan of an existing filesystem.
I put some effort into writing an introduction into