Example #1
0
/*
 * @value: "" makes the attribute to empty, NULL removes it
 */
int __btrfs_setxattr(struct btrfs_trans_handle *trans,
		     struct inode *inode, const char *name,
		     const void *value, size_t size, int flags)
{
	struct btrfs_root *root = BTRFS_I(inode)->root;
	int ret;

	if (trans)
		return do_setxattr(trans, inode, name, value, size, flags);

	trans = btrfs_start_transaction(root, 2);
	if (IS_ERR(trans))
		return PTR_ERR(trans);

	ret = do_setxattr(trans, inode, name, value, size, flags);
	if (ret)
		goto out;

	inode->i_ctime = CURRENT_TIME;
	ret = btrfs_update_inode(trans, root, inode);
	BUG_ON(ret);
out:
	btrfs_end_transaction_throttle(trans, root);
	return ret;
}
Example #2
0
File: xattr.c Project: 020gzh/linux
/*
 * @value: "" makes the attribute to empty, NULL removes it
 */
int __btrfs_setxattr(struct btrfs_trans_handle *trans,
		     struct inode *inode, const char *name,
		     const void *value, size_t size, int flags)
{
	struct btrfs_root *root = BTRFS_I(inode)->root;
	int ret;

	if (trans)
		return do_setxattr(trans, inode, name, value, size, flags);

	trans = btrfs_start_transaction(root, 2);
	if (IS_ERR(trans))
		return PTR_ERR(trans);

	ret = do_setxattr(trans, inode, name, value, size, flags);
	if (ret)
		goto out;

	inode_inc_iversion(inode);
	inode->i_ctime = current_fs_time(inode->i_sb);
	set_bit(BTRFS_INODE_COPY_EVERYTHING, &BTRFS_I(inode)->runtime_flags);
	ret = btrfs_update_inode(trans, root, inode);
	BUG_ON(ret);
out:
	btrfs_end_transaction(trans, root);
	return ret;
}
Example #3
0
int __btrfs_setxattr(struct btrfs_trans_handle *trans,
		     struct inode *inode, const char *name,
		     const void *value, size_t size, int flags)
{
	struct btrfs_root *root = BTRFS_I(inode)->root;
	int ret;

	if (trans)
		return do_setxattr(trans, inode, name, value, size, flags);

	ret = btrfs_reserve_metadata_space(root, 2);
	if (ret)
		return ret;

	trans = btrfs_start_transaction(root, 1);
	if (!trans) {
		ret = -ENOMEM;
		goto out;
	}
	btrfs_set_trans_block_group(trans, inode);

	ret = do_setxattr(trans, inode, name, value, size, flags);
	if (ret)
		goto out;

	inode->i_ctime = CURRENT_TIME;
	ret = btrfs_update_inode(trans, root, inode);
	BUG_ON(ret);
out:
	btrfs_end_transaction_throttle(trans, root);
	btrfs_unreserve_metadata_space(root, 2);
	return ret;
}
Example #4
0
int restore_line(const char *filename,uint64_t lv,char *line) {
	char *ptr;
	uint32_t ts;
	int status;
	char* errormsgs[]={ ERROR_STRINGS };

	status = ERROR_MISMATCH;
	ptr = line;

	EAT(ptr,filename,lv,':');
	EAT(ptr,filename,lv,' ');
	GETU32(ts,ptr);
	EAT(ptr,filename,lv,'|');
	switch (*ptr) {
		case 'A':
			if (strncmp(ptr,"ACCESS",6)==0) {
				status = do_access(filename,lv,ts,ptr+6);
			} else if (strncmp(ptr,"ATTR",4)==0) {
				status = do_attr(filename,lv,ts,ptr+4);
			} else if (strncmp(ptr,"APPEND",6)==0) {
				status = do_append(filename,lv,ts,ptr+6);
			} else if (strncmp(ptr,"ACQUIRE",7)==0) {
				status = do_acquire(filename,lv,ts,ptr+7);
			} else if (strncmp(ptr,"AQUIRE",6)==0) {
				status = do_acquire(filename,lv,ts,ptr+6);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'C':
			if (strncmp(ptr,"CREATE",6)==0) {
				status = do_create(filename,lv,ts,ptr+6);
			} else if (strncmp(ptr,"CUSTOMER",8)==0) {	// deprecated
				status = do_session(filename,lv,ts,ptr+8);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'E':
			if (strncmp(ptr,"EMPTYTRASH",10)==0) {
				status = do_emptytrash(filename,lv,ts,ptr+10);
			} else if (strncmp(ptr,"EMPTYRESERVED",13)==0) {
				status = do_emptyreserved(filename,lv,ts,ptr+13);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'F':
			if (strncmp(ptr,"FREEINODES",10)==0) {
				status = do_freeinodes(filename,lv,ts,ptr+10);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'I':
			if (strncmp(ptr,"INCVERSION",10)==0) {
				status = do_incversion(filename,lv,ts,ptr+10);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'L':
			if (strncmp(ptr,"LENGTH",6)==0) {
				status = do_length(filename,lv,ts,ptr+6);
			} else if (strncmp(ptr,"LINK",4)==0) {
				status = do_link(filename,lv,ts,ptr+4);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'M':
			if (strncmp(ptr,"MOVE",4)==0) {
				status = do_move(filename,lv,ts,ptr+4);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'P':
			if (strncmp(ptr,"PURGE",5)==0) {
				status = do_purge(filename,lv,ts,ptr+5);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'Q':
			if (strncmp(ptr,"QUOTA",5)==0) {
				status = do_quota(filename,lv,ts,ptr+5);
			}
			break;
		case 'R':
			if (strncmp(ptr,"RELEASE",7)==0) {
				status = do_release(filename,lv,ts,ptr+7);
			} else if (strncmp(ptr,"REPAIR",6)==0) {
				status = do_repair(filename,lv,ts,ptr+6);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'S':
			if (strncmp(ptr,"SETEATTR",8)==0) {
				status = do_seteattr(filename,lv,ts,ptr+8);
			} else if (strncmp(ptr,"SETGOAL",7)==0) {
				status = do_setgoal(filename,lv,ts,ptr+7);
			} else if (strncmp(ptr,"SETPATH",7)==0) {
				status = do_setpath(filename,lv,ts,ptr+7);
			} else if (strncmp(ptr,"SETTRASHTIME",12)==0) {
				status = do_settrashtime(filename,lv,ts,ptr+12);
			} else if (strncmp(ptr,"SETXATTR",8)==0) {
				status = do_setxattr(filename,lv,ts,ptr+8);
			} else if (strncmp(ptr,"SNAPSHOT",8)==0) {
				status = do_snapshot(filename,lv,ts,ptr+8);
			} else if (strncmp(ptr,"SYMLINK",7)==0) {
				status = do_symlink(filename,lv,ts,ptr+7);
			} else if (strncmp(ptr,"SESSION",7)==0) {
				status = do_session(filename,lv,ts,ptr+7);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'T':
			if (strncmp(ptr,"TRUNC",5)==0) {
				status = do_trunc(filename,lv,ts,ptr+5);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'U':
			if (strncmp(ptr,"UNLINK",6)==0) {
				status = do_unlink(filename,lv,ts,ptr+6);
			} else if (strncmp(ptr,"UNDEL",5)==0) {
				status = do_undel(filename,lv,ts,ptr+5);
			} else if (strncmp(ptr,"UNLOCK",6)==0) {
				status = do_unlock(filename,lv,ts,ptr+6);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		case 'W':
			if (strncmp(ptr,"WRITE",5)==0) {
				status = do_write(filename,lv,ts,ptr+5);
			} else {
				printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
			}
			break;
		default:
			printf("%s:%"PRIu64": unknown entry '%s'\n",filename,lv,ptr);
	}
	if (status>STATUS_OK) {
		printf("%s:%"PRIu64": error: %d (%s)\n",filename,lv,status,errormsgs[status]);
	}
	return status;
}