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fs: dlm: move out some hash functionality

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

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring
2021-05-21 15:08:44 -04:00
committed by David Teigland
parent 2874d1a68c
commit 37a247da51
2 changed files with 10 additions and 9 deletions
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9
fs/dlm/lowcomms.c
View File

@@ -59,7 +59,6 @@
#include "config.h" #include "config.h"
#define NEEDED_RMEM (4*1024*1024) #define NEEDED_RMEM (4*1024*1024)
#define CONN_HASH_SIZE 32
/* Number of messages to send before rescheduling */ /* Number of messages to send before rescheduling */
#define MAX_SEND_MSG_COUNT 25 #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 tcp_connect_to_sock(struct connection *con);
static void dlm_tcp_shutdown(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) static struct connection *__find_con(int nodeid, int r)
{ {
struct connection *con; struct connection *con;

10
fs/dlm/lowcomms.h
View File

@@ -13,6 +13,16 @@
#define __LOWCOMMS_DOT_H__ #define __LOWCOMMS_DOT_H__
#define LOWCOMMS_MAX_TX_BUFFER_LEN 4096 #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 */ /* switch to check if dlm is running */
extern int dlm_allow_conn; extern int dlm_allow_conn;