64 	int (*get_clusters)(struct ocfs2_cow_context *context,
3114 				  struct ocfs2_cow_context *context,  in ocfs2_replace_clusters()  argument
3120 	struct ocfs2_caching_info *ci = context->data_et.et_ci;  in ocfs2_replace_clusters()
3128 		ret = context->cow_duplicate_clusters(handle, context->inode,  in ocfs2_replace_clusters()
3136 	ret = ocfs2_clear_ext_refcount(handle, &context->data_et,  in ocfs2_replace_clusters()
3138 				       context->meta_ac, &context->dealloc);  in ocfs2_replace_clusters()
3195 static int ocfs2_di_get_clusters(struct ocfs2_cow_context *context,  in ocfs2_di_get_clusters()  argument
3200 	return ocfs2_get_clusters(context->inode, v_cluster, p_cluster,  in ocfs2_di_get_clusters()
3205 					struct ocfs2_cow_context *context,  in ocfs2_make_clusters_writable()  argument
3215 	struct ocfs2_caching_info *ref_ci = &context->ref_tree->rf_ci;  in ocfs2_make_clusters_writable()
3222 					     &context->data_et,  in ocfs2_make_clusters_writable()
3224 					     context->ref_root_bh,  in ocfs2_make_clusters_writable()
3225 					     &context->meta_ac,  in ocfs2_make_clusters_writable()
3226 					     &context->data_ac, &credits);  in ocfs2_make_clusters_writable()
3232 	if (context->post_refcount)  in ocfs2_make_clusters_writable()
3233 		credits += context->post_refcount->credits;  in ocfs2_make_clusters_writable()
3235 	credits += context->extra_credits;  in ocfs2_make_clusters_writable()
3246 		ret = ocfs2_get_refcount_rec(ref_ci, context->ref_root_bh,  in ocfs2_make_clusters_writable()
3269 						       &context->data_et,  in ocfs2_make_clusters_writable()
3272 						       context->meta_ac,  in ocfs2_make_clusters_writable()
3273 						       &context->dealloc);  in ocfs2_make_clusters_writable()
3282 						     context->data_ac,  in ocfs2_make_clusters_writable()
3290 			ret = ocfs2_replace_clusters(handle, context,  in ocfs2_make_clusters_writable()
3301 						context->ref_root_bh,  in ocfs2_make_clusters_writable()
3303 						context->meta_ac,  in ocfs2_make_clusters_writable()
3304 						&context->dealloc, delete);  in ocfs2_make_clusters_writable()
3318 	if (context->post_refcount && context->post_refcount->func) {  in ocfs2_make_clusters_writable()
3319 		ret = context->post_refcount->func(context->inode, handle,  in ocfs2_make_clusters_writable()
3320 						context->post_refcount->para);  in ocfs2_make_clusters_writable()
3331 	if (context->get_clusters == ocfs2_di_get_clusters) {  in ocfs2_make_clusters_writable()
3332 		ret = ocfs2_cow_sync_writeback(sb, context->inode, cpos,  in ocfs2_make_clusters_writable()
3342 	if (context->data_ac) {  in ocfs2_make_clusters_writable()
3343 		ocfs2_free_alloc_context(context->data_ac);  in ocfs2_make_clusters_writable()
3344 		context->data_ac = NULL;  in ocfs2_make_clusters_writable()
3346 	if (context->meta_ac) {  in ocfs2_make_clusters_writable()
3347 		ocfs2_free_alloc_context(context->meta_ac);  in ocfs2_make_clusters_writable()
3348 		context->meta_ac = NULL;  in ocfs2_make_clusters_writable()
3355 static int ocfs2_replace_cow(struct ocfs2_cow_context *context)  in ocfs2_replace_cow()  argument
3358 	struct inode *inode = context->inode;  in ocfs2_replace_cow()
3359 	u32 cow_start = context->cow_start, cow_len = context->cow_len;  in ocfs2_replace_cow()
3369 	ocfs2_init_dealloc_ctxt(&context->dealloc);  in ocfs2_replace_cow()
3372 		ret = context->get_clusters(context, cow_start, &p_cluster,  in ocfs2_replace_cow()
3384 		ret = ocfs2_make_clusters_writable(inode->i_sb, context,  in ocfs2_replace_cow()
3396 	if (ocfs2_dealloc_has_cluster(&context->dealloc)) {  in ocfs2_replace_cow()
3398 		ocfs2_run_deallocs(osb, &context->dealloc);  in ocfs2_replace_cow()
3420 	struct ocfs2_cow_context *context = NULL;  in ocfs2_refcount_cow_hunk()  local
3438 	context = kzalloc(sizeof(struct ocfs2_cow_context), GFP_NOFS);  in ocfs2_refcount_cow_hunk()
3439 	if (!context) {  in ocfs2_refcount_cow_hunk()
3452 	context->inode = inode;  in ocfs2_refcount_cow_hunk()
3453 	context->cow_start = cow_start;  in ocfs2_refcount_cow_hunk()
3454 	context->cow_len = cow_len;  in ocfs2_refcount_cow_hunk()
3455 	context->ref_tree = ref_tree;  in ocfs2_refcount_cow_hunk()
3456 	context->ref_root_bh = ref_root_bh;  in ocfs2_refcount_cow_hunk()
3457 	context->cow_duplicate_clusters = ocfs2_duplicate_clusters_by_page;  in ocfs2_refcount_cow_hunk()
3458 	context->get_clusters = ocfs2_di_get_clusters;  in ocfs2_refcount_cow_hunk()
3460 	ocfs2_init_dinode_extent_tree(&context->data_et,  in ocfs2_refcount_cow_hunk()
3463 	ret = ocfs2_replace_cow(context);  in ocfs2_refcount_cow_hunk()
3477 	kfree(context);  in ocfs2_refcount_cow_hunk()
3521 static int ocfs2_xattr_value_get_clusters(struct ocfs2_cow_context *context,  in ocfs2_xattr_value_get_clusters()  argument
3526 	struct inode *inode = context->inode;  in ocfs2_xattr_value_get_clusters()
3527 	struct ocfs2_xattr_value_root *xv = context->cow_object;  in ocfs2_xattr_value_get_clusters()
3633 	struct ocfs2_cow_context *context = NULL;  in ocfs2_refcount_cow_xattr()  local
3648 	context = kzalloc(sizeof(struct ocfs2_cow_context), GFP_NOFS);  in ocfs2_refcount_cow_xattr()
3649 	if (!context) {  in ocfs2_refcount_cow_xattr()
3655 	context->inode = inode;  in ocfs2_refcount_cow_xattr()
3656 	context->cow_start = cow_start;  in ocfs2_refcount_cow_xattr()
3657 	context->cow_len = cow_len;  in ocfs2_refcount_cow_xattr()
3658 	context->ref_tree = ref_tree;  in ocfs2_refcount_cow_xattr()
3659 	context->ref_root_bh = ref_root_bh;  in ocfs2_refcount_cow_xattr()
3660 	context->cow_object = xv;  in ocfs2_refcount_cow_xattr()
3662 	context->cow_duplicate_clusters = ocfs2_duplicate_clusters_by_jbd;  in ocfs2_refcount_cow_xattr()
3664 	context->extra_credits =  in ocfs2_refcount_cow_xattr()
3666 	context->get_clusters = ocfs2_xattr_value_get_clusters;  in ocfs2_refcount_cow_xattr()
3667 	context->post_refcount = post;  in ocfs2_refcount_cow_xattr()
3669 	ocfs2_init_xattr_value_extent_tree(&context->data_et,  in ocfs2_refcount_cow_xattr()
3672 	ret = ocfs2_replace_cow(context);  in ocfs2_refcount_cow_xattr()
3677 	kfree(context);  in ocfs2_refcount_cow_xattr()