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Commit 82d56591 authored by Chuck Lever's avatar Chuck Lever Committed by J. Bruce Fields
Browse files

NFSD: Refactor portlist socket closing into a helper 



Clean up: Refactor the socket closing logic out of __write_ports() to
make it easier to understand and maintain.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarJ. Bruce Fields <bfields@citi.umich.edu>
parent 4eb68c26

fs/nfsd/nfsctl.c

+24 −12
Original line number Diff line number Diff line
@@ -910,6 +910,27 @@ static ssize_t write_versions(struct file *file, char *buf, size_t size) 
	return rv;

}



/*

 * A '-' followed by the 'name' of a socket means we close the socket.

 */

static ssize_t __write_ports_delfd(char *buf)

{

	char *toclose;

	int len = 0;



	toclose = kstrdup(buf + 1, GFP_KERNEL);

	if (toclose == NULL)

		return -ENOMEM;



	if (nfsd_serv != NULL)

		len = svc_sock_names(buf, nfsd_serv, toclose);

	if (len >= 0)

		lockd_down();



	kfree(toclose);

	return len;

}



/*

 * A transport listener is added by writing it's transport name and

 * a port number.
@@ -1004,18 +1025,9 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size) 
		}

		return err < 0 ? err : 0;

	}

	if (buf[0] == '-' && isdigit(buf[1])) {

		char *toclose = kstrdup(buf+1, GFP_KERNEL);

		int len = 0;

		if (!toclose)

			return -ENOMEM;

		if (nfsd_serv)

			len = svc_sock_names(buf, nfsd_serv, toclose);

		if (len >= 0)

			lockd_down();

		kfree(toclose);

		return len;

	}



	if (buf[0] == '-' && isdigit(buf[1]))

		return __write_ports_delfd(buf);



	if (isalpha(buf[0]))

		return __write_ports_addxprt(buf);