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authorQu Wenruo <quwenruo@cn.fujitsu.com>2015-09-08 12:08:36 +0300
committerChris Mason <clm@fb.com>2015-10-22 04:37:46 +0300
commitf64d5ca868214f9beb60108c82fcb96940132bfb (patch)
tree21676bd140d5b755f24663839f10e2c04c878e3e /fs/btrfs/delayed-ref.h
parentf695fdcef83ac6972e0eda1d6588a56348f521a2 (diff)
downloadlinux-f64d5ca868214f9beb60108c82fcb96940132bfb.tar.xz
btrfs: delayed_ref: Add new function to record reserved space into delayed ref
Add new function btrfs_add_delayed_qgroup_reserve() function to record how much space is reserved for that extent. As btrfs only accounts qgroup at run_delayed_refs() time, so newly allocated extent should keep the reserved space until then. So add needed function with related members to do it. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/delayed-ref.h')
-rw-r--r--fs/btrfs/delayed-ref.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index 13fb5e6090fe..d4c41e26101c 100644
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -113,6 +113,17 @@ struct btrfs_delayed_ref_head {
int total_ref_mod;
/*
+ * For qgroup reserved space freeing.
+ *
+ * ref_root and reserved will be recorded after
+ * BTRFS_ADD_DELAYED_EXTENT is called.
+ * And will be used to free reserved qgroup space at
+ * run_delayed_refs() time.
+ */
+ u64 qgroup_ref_root;
+ u64 qgroup_reserved;
+
+ /*
* when a new extent is allocated, it is just reserved in memory
* The actual extent isn't inserted into the extent allocation tree
* until the delayed ref is processed. must_insert_reserved is
@@ -242,6 +253,9 @@ int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info,
u64 owner, u64 offset, int action,
struct btrfs_delayed_extent_op *extent_op,
int no_quota);
+int btrfs_add_delayed_qgroup_reserve(struct btrfs_fs_info *fs_info,
+ struct btrfs_trans_handle *trans,
+ u64 ref_root, u64 bytenr, u64 num_bytes);
int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info,
struct btrfs_trans_handle *trans,
u64 bytenr, u64 num_bytes,