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Commit 76675593 authored by Qu Wenruo's avatar Qu Wenruo Committed by David Sterba
Browse files

btrfs: delayed-ref: Use btrfs_ref to refactor btrfs_add_delayed_data_ref() 



Just like btrfs_add_delayed_tree_ref(), use btrfs_ref to refactor
btrfs_add_delayed_data_ref().

Signed-off-by: default avatarQu Wenruo <wqu@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent ed4f255b

fs/btrfs/delayed-ref.c

+14 −5
Original line number Diff line number Diff line
@@ -832,10 +832,9 @@ int btrfs_add_delayed_tree_ref(struct btrfs_trans_handle *trans, 
 * add a delayed data ref. it's similar to btrfs_add_delayed_tree_ref.

 */

int btrfs_add_delayed_data_ref(struct btrfs_trans_handle *trans,

			       u64 bytenr, u64 num_bytes,

			       u64 parent, u64 ref_root,

			       u64 owner, u64 offset, u64 reserved, int action,

			       int *old_ref_mod, int *new_ref_mod)

			       struct btrfs_ref *generic_ref,

			       u64 reserved, int *old_ref_mod,

			       int *new_ref_mod)

{

	struct btrfs_fs_info *fs_info = trans->fs_info;

	struct btrfs_delayed_data_ref *ref;
@@ -843,9 +842,17 @@ int btrfs_add_delayed_data_ref(struct btrfs_trans_handle *trans, 
	struct btrfs_delayed_ref_root *delayed_refs;

	struct btrfs_qgroup_extent_record *record = NULL;

	int qrecord_inserted;

	int action = generic_ref->action;

	int ret;

	u64 bytenr = generic_ref->bytenr;

	u64 num_bytes = generic_ref->len;

	u64 parent = generic_ref->parent;

	u64 ref_root = generic_ref->data_ref.ref_root;

	u64 owner = generic_ref->data_ref.ino;

	u64 offset = generic_ref->data_ref.offset;

	u8 ref_type;



	ASSERT(generic_ref->type == BTRFS_REF_DATA && action);

	ref = kmem_cache_alloc(btrfs_delayed_data_ref_cachep, GFP_NOFS);

	if (!ref)

		return -ENOMEM;
@@ -869,7 +876,9 @@ int btrfs_add_delayed_data_ref(struct btrfs_trans_handle *trans, 
	}



	if (test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags) &&

	    is_fstree(ref_root)) {

	    is_fstree(ref_root) &&

	    is_fstree(generic_ref->real_root) &&

	    !generic_ref->skip_qgroup) {

		record = kzalloc(sizeof(*record), GFP_NOFS);

		if (!record) {

			kmem_cache_free(btrfs_delayed_data_ref_cachep, ref);

fs/btrfs/delayed-ref.h

+3 −4
Original line number Diff line number Diff line
@@ -337,10 +337,9 @@ int btrfs_add_delayed_tree_ref(struct btrfs_trans_handle *trans, 
			       struct btrfs_delayed_extent_op *extent_op,

			       int *old_ref_mod, int *new_ref_mod);

int btrfs_add_delayed_data_ref(struct btrfs_trans_handle *trans,

			       u64 bytenr, u64 num_bytes,

			       u64 parent, u64 ref_root,

			       u64 owner, u64 offset, u64 reserved, int action,

			       int *old_ref_mod, int *new_ref_mod);

			       struct btrfs_ref *generic_ref,

			       u64 reserved, int *old_ref_mod,

			       int *new_ref_mod);

int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info,

				struct btrfs_trans_handle *trans,

				u64 bytenr, u64 num_bytes,

fs/btrfs/extent-tree.c

+10 −13
Original line number Diff line number Diff line
@@ -2065,10 +2065,8 @@ int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, 
		ret = btrfs_add_delayed_tree_ref(trans, &generic_ref,

				NULL, &old_ref_mod, &new_ref_mod);

	} else {

		ret = btrfs_add_delayed_data_ref(trans, bytenr,

						 num_bytes, parent,

						 root_objectid, owner, offset,

						 0, BTRFS_ADD_DELAYED_REF,

		btrfs_init_data_ref(&generic_ref, root_objectid, owner, offset);

		ret = btrfs_add_delayed_data_ref(trans, &generic_ref, 0,

						 &old_ref_mod, &new_ref_mod);

	}
@@ -7276,10 +7274,8 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, 
		ret = btrfs_add_delayed_tree_ref(trans, &generic_ref, NULL,

						 &old_ref_mod, &new_ref_mod);

	} else {

		ret = btrfs_add_delayed_data_ref(trans, bytenr,

						 num_bytes, parent,

						 root_objectid, owner, offset,

						 0, BTRFS_DROP_DELAYED_REF,

		btrfs_init_data_ref(&generic_ref, root_objectid, owner, offset);

		ret = btrfs_add_delayed_data_ref(trans, &generic_ref, 0,

						 &old_ref_mod, &new_ref_mod);

	}
@@ -8385,6 +8381,7 @@ int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans, 
				     u64 offset, u64 ram_bytes,

				     struct btrfs_key *ins)

{

	struct btrfs_ref generic_ref = { 0 };

	int ret;



	BUG_ON(root->root_key.objectid == BTRFS_TREE_LOG_OBJECTID);
@@ -8393,11 +8390,11 @@ int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans, 
			   root->root_key.objectid, owner, offset,

			   BTRFS_ADD_DELAYED_EXTENT);



	ret = btrfs_add_delayed_data_ref(trans, ins->objectid,

					 ins->offset, 0,

					 root->root_key.objectid, owner,

					 offset, ram_bytes,

					 BTRFS_ADD_DELAYED_EXTENT, NULL, NULL);

	btrfs_init_generic_ref(&generic_ref, BTRFS_ADD_DELAYED_EXTENT,

			       ins->objectid, ins->offset, 0);

	btrfs_init_data_ref(&generic_ref, root->root_key.objectid, owner, offset);

	ret = btrfs_add_delayed_data_ref(trans, &generic_ref,

					 ram_bytes, NULL, NULL);

	return ret;

}