Commit 5e962c78 authored by Josef Bacik's avatar Josef Bacik
Browse files

Btrfs: kill btrfs_truncate_reserve_metadata 



Since we've optimized the truncate path, we no longer require this function.

Signed-off-by: default avatarJosef Bacik <josef@redhat.com>
parent 907cbceb

fs/btrfs/ctree.h

+0 −3
Original line number Diff line number Diff line
@@ -2240,9 +2240,6 @@ int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv, 
void btrfs_block_rsv_release(struct btrfs_root *root,

			     struct btrfs_block_rsv *block_rsv,

			     u64 num_bytes);

int btrfs_truncate_reserve_metadata(struct btrfs_trans_handle *trans,

				    struct btrfs_root *root,

				    struct btrfs_block_rsv *rsv);

int btrfs_set_block_group_ro(struct btrfs_root *root,

			     struct btrfs_block_group_cache *cache);

int btrfs_set_block_group_rw(struct btrfs_root *root,

fs/btrfs/extent-tree.c

+0 −31
Original line number Diff line number Diff line
@@ -3858,37 +3858,6 @@ static void release_global_block_rsv(struct btrfs_fs_info *fs_info) 
	WARN_ON(fs_info->chunk_block_rsv.reserved > 0);

}



int btrfs_truncate_reserve_metadata(struct btrfs_trans_handle *trans,

				    struct btrfs_root *root,

				    struct btrfs_block_rsv *rsv)

{

	struct btrfs_block_rsv *trans_rsv = &root->fs_info->trans_block_rsv;

	u64 num_bytes;

	int ret;



	/*

	 * Truncate should be freeing data, but give us 2 items just in case it

	 * needs to use some space.  We may want to be smarter about this in the

	 * future.

	 */

	num_bytes = btrfs_calc_trans_metadata_size(root, 2);



	/* We already have enough bytes, just return */

	if (rsv->reserved >= num_bytes)

		return 0;



	num_bytes -= rsv->reserved;



	/*

	 * You should have reserved enough space before hand to do this, so this

	 * should not fail.

	 */

	ret = block_rsv_migrate_bytes(trans_rsv, rsv, num_bytes);

	BUG_ON(ret);



	return 0;

}



void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,

				  struct btrfs_root *root)

{