64 	int (*get_clusters)(struct ocfs2_cow_context *context,
3130 				  struct ocfs2_cow_context *context,  in ocfs2_replace_clusters()  argument
3136 	struct ocfs2_caching_info *ci = context->data_et.et_ci;  in ocfs2_replace_clusters()
3144 		ret = context->cow_duplicate_clusters(handle, context->inode,  in ocfs2_replace_clusters()
3152 	ret = ocfs2_clear_ext_refcount(handle, &context->data_et,  in ocfs2_replace_clusters()
3154 				       context->meta_ac, &context->dealloc);  in ocfs2_replace_clusters()
3211 static int ocfs2_di_get_clusters(struct ocfs2_cow_context *context,  in ocfs2_di_get_clusters()  argument
3216 	return ocfs2_get_clusters(context->inode, v_cluster, p_cluster,  in ocfs2_di_get_clusters()
3221 					struct ocfs2_cow_context *context,  in ocfs2_make_clusters_writable()  argument
3231 	struct ocfs2_caching_info *ref_ci = &context->ref_tree->rf_ci;  in ocfs2_make_clusters_writable()
3238 					     &context->data_et,  in ocfs2_make_clusters_writable()
3240 					     context->ref_root_bh,  in ocfs2_make_clusters_writable()
3241 					     &context->meta_ac,  in ocfs2_make_clusters_writable()
3242 					     &context->data_ac, &credits);  in ocfs2_make_clusters_writable()
3248 	if (context->post_refcount)  in ocfs2_make_clusters_writable()
3249 		credits += context->post_refcount->credits;  in ocfs2_make_clusters_writable()
3251 	credits += context->extra_credits;  in ocfs2_make_clusters_writable()
3262 		ret = ocfs2_get_refcount_rec(ref_ci, context->ref_root_bh,  in ocfs2_make_clusters_writable()
3285 						       &context->data_et,  in ocfs2_make_clusters_writable()
3288 						       context->meta_ac,  in ocfs2_make_clusters_writable()
3289 						       &context->dealloc);  in ocfs2_make_clusters_writable()
3298 						     context->data_ac,  in ocfs2_make_clusters_writable()
3306 			ret = ocfs2_replace_clusters(handle, context,  in ocfs2_make_clusters_writable()
3317 						context->ref_root_bh,  in ocfs2_make_clusters_writable()
3319 						context->meta_ac,  in ocfs2_make_clusters_writable()
3320 						&context->dealloc, delete);  in ocfs2_make_clusters_writable()
3334 	if (context->post_refcount && context->post_refcount->func) {  in ocfs2_make_clusters_writable()
3335 		ret = context->post_refcount->func(context->inode, handle,  in ocfs2_make_clusters_writable()
3336 						context->post_refcount->para);  in ocfs2_make_clusters_writable()
3347 	if (context->get_clusters == ocfs2_di_get_clusters) {  in ocfs2_make_clusters_writable()
3348 		ret = ocfs2_cow_sync_writeback(sb, context->inode, cpos,  in ocfs2_make_clusters_writable()
3358 	if (context->data_ac) {  in ocfs2_make_clusters_writable()
3359 		ocfs2_free_alloc_context(context->data_ac);  in ocfs2_make_clusters_writable()
3360 		context->data_ac = NULL;  in ocfs2_make_clusters_writable()
3362 	if (context->meta_ac) {  in ocfs2_make_clusters_writable()
3363 		ocfs2_free_alloc_context(context->meta_ac);  in ocfs2_make_clusters_writable()
3364 		context->meta_ac = NULL;  in ocfs2_make_clusters_writable()
3371 static int ocfs2_replace_cow(struct ocfs2_cow_context *context)  in ocfs2_replace_cow()  argument
3374 	struct inode *inode = context->inode;  in ocfs2_replace_cow()
3375 	u32 cow_start = context->cow_start, cow_len = context->cow_len;  in ocfs2_replace_cow()
3387 	ocfs2_init_dealloc_ctxt(&context->dealloc);  in ocfs2_replace_cow()
3390 		ret = context->get_clusters(context, cow_start, &p_cluster,  in ocfs2_replace_cow()
3402 		ret = ocfs2_make_clusters_writable(inode->i_sb, context,  in ocfs2_replace_cow()
3414 	if (ocfs2_dealloc_has_cluster(&context->dealloc)) {  in ocfs2_replace_cow()
3416 		ocfs2_run_deallocs(osb, &context->dealloc);  in ocfs2_replace_cow()
3438 	struct ocfs2_cow_context *context = NULL;  in ocfs2_refcount_cow_hunk()  local
3456 	context = kzalloc(sizeof(struct ocfs2_cow_context), GFP_NOFS);  in ocfs2_refcount_cow_hunk()
3457 	if (!context) {  in ocfs2_refcount_cow_hunk()
3470 	context->inode = inode;  in ocfs2_refcount_cow_hunk()
3471 	context->cow_start = cow_start;  in ocfs2_refcount_cow_hunk()
3472 	context->cow_len = cow_len;  in ocfs2_refcount_cow_hunk()
3473 	context->ref_tree = ref_tree;  in ocfs2_refcount_cow_hunk()
3474 	context->ref_root_bh = ref_root_bh;  in ocfs2_refcount_cow_hunk()
3475 	context->cow_duplicate_clusters = ocfs2_duplicate_clusters_by_page;  in ocfs2_refcount_cow_hunk()
3476 	context->get_clusters = ocfs2_di_get_clusters;  in ocfs2_refcount_cow_hunk()
3478 	ocfs2_init_dinode_extent_tree(&context->data_et,  in ocfs2_refcount_cow_hunk()
3481 	ret = ocfs2_replace_cow(context);  in ocfs2_refcount_cow_hunk()
3495 	kfree(context);  in ocfs2_refcount_cow_hunk()
3539 static int ocfs2_xattr_value_get_clusters(struct ocfs2_cow_context *context,  in ocfs2_xattr_value_get_clusters()  argument
3544 	struct inode *inode = context->inode;  in ocfs2_xattr_value_get_clusters()
3545 	struct ocfs2_xattr_value_root *xv = context->cow_object;  in ocfs2_xattr_value_get_clusters()
3651 	struct ocfs2_cow_context *context = NULL;  in ocfs2_refcount_cow_xattr()  local
3666 	context = kzalloc(sizeof(struct ocfs2_cow_context), GFP_NOFS);  in ocfs2_refcount_cow_xattr()
3667 	if (!context) {  in ocfs2_refcount_cow_xattr()
3673 	context->inode = inode;  in ocfs2_refcount_cow_xattr()
3674 	context->cow_start = cow_start;  in ocfs2_refcount_cow_xattr()
3675 	context->cow_len = cow_len;  in ocfs2_refcount_cow_xattr()
3676 	context->ref_tree = ref_tree;  in ocfs2_refcount_cow_xattr()
3677 	context->ref_root_bh = ref_root_bh;  in ocfs2_refcount_cow_xattr()
3678 	context->cow_object = xv;  in ocfs2_refcount_cow_xattr()
3680 	context->cow_duplicate_clusters = ocfs2_duplicate_clusters_by_jbd;  in ocfs2_refcount_cow_xattr()
3682 	context->extra_credits =  in ocfs2_refcount_cow_xattr()
3684 	context->get_clusters = ocfs2_xattr_value_get_clusters;  in ocfs2_refcount_cow_xattr()
3685 	context->post_refcount = post;  in ocfs2_refcount_cow_xattr()
3687 	ocfs2_init_xattr_value_extent_tree(&context->data_et,  in ocfs2_refcount_cow_xattr()
3690 	ret = ocfs2_replace_cow(context);  in ocfs2_refcount_cow_xattr()
3695 	kfree(context);  in ocfs2_refcount_cow_xattr()