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authorQu Wenruo <quwenruo@cn.fujitsu.com>2015-04-16 09:34:17 +0300
committerChris Mason <clm@fb.com>2015-06-10 19:25:32 +0300
commit3368d001ba5df44930d986e82b1b497d4da285ba (patch)
tree62797b833909d45d2e8b6244c4007d6661154f67 /fs/btrfs/qgroup.h
parent823ae5b8e340003dacbe7cd08a355efe018c9f1b (diff)
downloadlinux-3368d001ba5df44930d986e82b1b497d4da285ba.tar.xz
btrfs: qgroup: Record possible quota-related extent for qgroup.
Add hook in add_delayed_ref_head() to record quota-related extent record into delayed_ref_root->dirty_extent_record rb-tree for later qgroup accounting. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/qgroup.h')
-rw-r--r--fs/btrfs/qgroup.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h
index c5242aa9a4b2..e58155d0390c 100644
--- a/fs/btrfs/qgroup.h
+++ b/fs/btrfs/qgroup.h
@@ -19,6 +19,9 @@
#ifndef __BTRFS_QGROUP__
#define __BTRFS_QGROUP__
+#include "ulist.h"
+#include "delayed-ref.h"
+
/*
* A description of the operations, all of these operations only happen when we
* are adding the 1st reference for that subvolume in the case of adding space
@@ -58,6 +61,17 @@ struct btrfs_qgroup_operation {
struct list_head list;
};
+/*
+ * Record a dirty extent, and info qgroup to update quota on it
+ * TODO: Use kmem cache to alloc it.
+ */
+struct btrfs_qgroup_extent_record {
+ struct rb_node node;
+ u64 bytenr;
+ u64 num_bytes;
+ struct ulist *old_roots;
+};
+
int btrfs_quota_enable(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info);
int btrfs_quota_disable(struct btrfs_trans_handle *trans,
@@ -84,6 +98,9 @@ int btrfs_qgroup_record_ref(struct btrfs_trans_handle *trans,
u64 bytenr, u64 num_bytes,
enum btrfs_qgroup_operation_type type,
int mod_seq);
+struct btrfs_qgroup_extent_record
+*btrfs_qgroup_insert_dirty_extent(struct btrfs_delayed_ref_root *delayed_refs,
+ struct btrfs_qgroup_extent_record *record);
int btrfs_delayed_qgroup_accounting(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info);
void btrfs_remove_qgroup_operation(struct btrfs_trans_handle *trans,