Commit 37a247da authored by Alexander Aring's avatar Alexander Aring Committed by David Teigland
Browse files

fs: dlm: move out some hash functionality 



This patch moves out some lowcomms hash functionality into lowcomms
header to provide them to other layers like midcomms as well.

Signed-off-by: default avatarAlexander Aring <aahringo@redhat.com>
Signed-off-by: default avatarDavid Teigland <teigland@redhat.com>
parent 2874d1a6

fs/dlm/lowcomms.c

+0 −9
Original line number Diff line number Diff line
@@ -59,7 +59,6 @@ 
#include "config.h"



#define NEEDED_RMEM (4*1024*1024)

#define CONN_HASH_SIZE 32



/* Number of messages to send before rescheduling */

#define MAX_SEND_MSG_COUNT 25
@@ -175,14 +174,6 @@ static void sctp_connect_to_sock(struct connection *con); 
static void tcp_connect_to_sock(struct connection *con);

static void dlm_tcp_shutdown(struct connection *con);



/* This is deliberately very simple because most clusters have simple

   sequential nodeids, so we should be able to go straight to a connection

   struct in the array */

static inline int nodeid_hash(int nodeid)

{

	return nodeid & (CONN_HASH_SIZE-1);

}



static struct connection *__find_con(int nodeid, int r)

{

	struct connection *con;

fs/dlm/lowcomms.h

+10 −0
Original line number Diff line number Diff line
@@ -13,6 +13,16 @@ 
#define __LOWCOMMS_DOT_H__



#define LOWCOMMS_MAX_TX_BUFFER_LEN	4096

#define CONN_HASH_SIZE 32



/* This is deliberately very simple because most clusters have simple

 * sequential nodeids, so we should be able to go straight to a connection

 * struct in the array

 */

static inline int nodeid_hash(int nodeid)

{

	return nodeid & (CONN_HASH_SIZE-1);

}



/* switch to check if dlm is running */

extern int dlm_allow_conn;