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-rw-r--r--fs/dlm/config.c3
-rw-r--r--fs/dlm/lock.c8
-rw-r--r--fs/dlm/lockspace.c7
-rw-r--r--fs/dlm/member.c17
-rw-r--r--fs/dlm/midcomms.c31
-rw-r--r--fs/dlm/midcomms.h8
-rw-r--r--fs/dlm/rcom.c101
7 files changed, 133 insertions, 42 deletions
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 88d95d96e36c..01ae294743e9 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -20,6 +20,7 @@
#include <net/sock.h>
#include "config.h"
+#include "midcomms.h"
#include "lowcomms.h"
/*
@@ -532,7 +533,7 @@ static void drop_comm(struct config_group *g, struct config_item *i)
struct dlm_comm *cm = config_item_to_comm(i);
if (local_comm == cm)
local_comm = NULL;
- dlm_lowcomms_close(cm->nodeid);
+ dlm_midcomms_close(cm->nodeid);
while (cm->addr_count--)
kfree(cm->addr[cm->addr_count]);
config_item_put(i);
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index b93df39d0915..b625ce92464a 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -59,7 +59,7 @@
#include "dlm_internal.h"
#include <linux/dlm_device.h>
#include "memory.h"
-#include "lowcomms.h"
+#include "midcomms.h"
#include "requestqueue.h"
#include "util.h"
#include "dir.h"
@@ -3534,10 +3534,10 @@ static int _create_message(struct dlm_ls *ls, int mb_len,
char *mb;
/* get_buffer gives us a message handle (mh) that we need to
- pass into lowcomms_commit and a message buffer (mb) that we
+ pass into midcomms_commit and a message buffer (mb) that we
write our data into */
- mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, GFP_NOFS, &mb);
+ mh = dlm_midcomms_get_mhandle(to_nodeid, mb_len, GFP_NOFS, &mb);
if (!mh)
return -ENOBUFS;
@@ -3589,7 +3589,7 @@ static int create_message(struct dlm_rsb *r, struct dlm_lkb *lkb,
static int send_message(struct dlm_mhandle *mh, struct dlm_message *ms)
{
dlm_message_out(ms);
- dlm_lowcomms_commit_buffer(mh);
+ dlm_midcomms_commit_mhandle(mh);
return 0;
}
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index c14cf2b7faab..bf5c55ef9d0d 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -16,6 +16,7 @@
#include "member.h"
#include "recoverd.h"
#include "dir.h"
+#include "midcomms.h"
#include "lowcomms.h"
#include "config.h"
#include "memory.h"
@@ -390,7 +391,7 @@ static int threads_start(void)
}
/* Thread for sending/receiving messages for all lockspace's */
- error = dlm_lowcomms_start();
+ error = dlm_midcomms_start();
if (error) {
log_print("cannot start dlm lowcomms %d", error);
goto scand_fail;
@@ -698,7 +699,7 @@ int dlm_new_lockspace(const char *name, const char *cluster,
error = 0;
if (!ls_count) {
dlm_scand_stop();
- dlm_lowcomms_shutdown();
+ dlm_midcomms_shutdown();
dlm_lowcomms_stop();
}
out:
@@ -787,7 +788,7 @@ static int release_lockspace(struct dlm_ls *ls, int force)
if (ls_count == 1) {
dlm_scand_stop();
- dlm_lowcomms_shutdown();
+ dlm_midcomms_shutdown();
}
dlm_callback_stop(ls);
diff --git a/fs/dlm/member.c b/fs/dlm/member.c
index 48245ba3c640..63971c594bdc 100644
--- a/fs/dlm/member.c
+++ b/fs/dlm/member.c
@@ -15,6 +15,7 @@
#include "recover.h"
#include "rcom.h"
#include "config.h"
+#include "midcomms.h"
#include "lowcomms.h"
int dlm_slots_version(struct dlm_header *h)
@@ -329,6 +330,7 @@ static int dlm_add_member(struct dlm_ls *ls, struct dlm_config_node *node)
memb->nodeid = node->nodeid;
memb->weight = node->weight;
memb->comm_seq = node->comm_seq;
+ dlm_midcomms_add_member(node->nodeid);
add_ordered_member(ls, memb);
ls->ls_num_nodes++;
return 0;
@@ -359,26 +361,34 @@ int dlm_is_removed(struct dlm_ls *ls, int nodeid)
return 0;
}
-static void clear_memb_list(struct list_head *head)
+static void clear_memb_list(struct list_head *head,
+ void (*after_del)(int nodeid))
{
struct dlm_member *memb;
while (!list_empty(head)) {
memb = list_entry(head->next, struct dlm_member, list);
list_del(&memb->list);
+ if (after_del)
+ after_del(memb->nodeid);
kfree(memb);
}
}
+static void clear_members_cb(int nodeid)
+{
+ dlm_midcomms_remove_member(nodeid);
+}
+
void dlm_clear_members(struct dlm_ls *ls)
{
- clear_memb_list(&ls->ls_nodes);
+ clear_memb_list(&ls->ls_nodes, clear_members_cb);
ls->ls_num_nodes = 0;
}
void dlm_clear_members_gone(struct dlm_ls *ls)
{
- clear_memb_list(&ls->ls_nodes_gone);
+ clear_memb_list(&ls->ls_nodes_gone, NULL);
}
static void make_member_array(struct dlm_ls *ls)
@@ -552,6 +562,7 @@ int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv, int *neg_out)
neg++;
list_move(&memb->list, &ls->ls_nodes_gone);
+ dlm_midcomms_remove_member(memb->nodeid);
ls->ls_num_nodes--;
dlm_lsop_recover_slot(ls, memb);
}
diff --git a/fs/dlm/midcomms.c b/fs/dlm/midcomms.c
index 1c6654a21ec4..1a280dda99d3 100644
--- a/fs/dlm/midcomms.c
+++ b/fs/dlm/midcomms.c
@@ -28,6 +28,36 @@
#include "lock.h"
#include "midcomms.h"
+struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len,
+ gfp_t allocation, char **ppc)
+{
+ return dlm_lowcomms_get_buffer(nodeid, len, allocation, ppc);
+}
+
+void dlm_midcomms_commit_mhandle(struct dlm_mhandle *mh)
+{
+ dlm_lowcomms_commit_buffer(mh);
+}
+
+void dlm_midcomms_add_member(int nodeid) { }
+
+void dlm_midcomms_remove_member(int nodeid) { }
+
+int dlm_midcomms_start(void)
+{
+ return dlm_lowcomms_start();
+}
+
+void dlm_midcomms_shutdown(void)
+{
+ dlm_lowcomms_shutdown();
+}
+
+int dlm_midcomms_close(int nodeid)
+{
+ return dlm_lowcomms_close(nodeid);
+}
+
/*
* Called from the low-level comms layer to process a buffer of
* commands.
@@ -101,4 +131,3 @@ skip:
return ret;
}
-
diff --git a/fs/dlm/midcomms.h b/fs/dlm/midcomms.h
index 61e90a921849..9ac1190ce277 100644
--- a/fs/dlm/midcomms.h
+++ b/fs/dlm/midcomms.h
@@ -13,6 +13,14 @@
#define __MIDCOMMS_DOT_H__
int dlm_process_incoming_buffer(int nodeid, unsigned char *buf, int buflen);
+struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len,
+ gfp_t allocation, char **ppc);
+void dlm_midcomms_commit_mhandle(struct dlm_mhandle *mh);
+int dlm_midcomms_close(int nodeid);
+int dlm_midcomms_start(void);
+void dlm_midcomms_shutdown(void);
+void dlm_midcomms_add_member(int nodeid);
+void dlm_midcomms_remove_member(int nodeid);
#endif /* __MIDCOMMS_DOT_H__ */
diff --git a/fs/dlm/rcom.c b/fs/dlm/rcom.c
index f5b1bd65728d..2661674364af 100644
--- a/fs/dlm/rcom.c
+++ b/fs/dlm/rcom.c
@@ -27,20 +27,10 @@ static int rcom_response(struct dlm_ls *ls)
return test_bit(LSFL_RCOM_READY, &ls->ls_flags);
}
-static int create_rcom(struct dlm_ls *ls, int to_nodeid, int type, int len,
- struct dlm_rcom **rc_ret, struct dlm_mhandle **mh_ret)
+static void _create_rcom(struct dlm_ls *ls, int to_nodeid, int type, int len,
+ struct dlm_rcom **rc_ret, char *mb, int mb_len)
{
struct dlm_rcom *rc;
- struct dlm_mhandle *mh;
- char *mb;
- int mb_len = sizeof(struct dlm_rcom) + len;
-
- mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, GFP_NOFS, &mb);
- if (!mh) {
- log_print("create_rcom to %d type %d len %d ENOBUFS",
- to_nodeid, type, len);
- return -ENOBUFS;
- }
rc = (struct dlm_rcom *) mb;
@@ -56,15 +46,64 @@ static int create_rcom(struct dlm_ls *ls, int to_nodeid, int type, int len,
rc->rc_seq = ls->ls_recover_seq;
spin_unlock(&ls->ls_recover_lock);
- *mh_ret = mh;
*rc_ret = rc;
+}
+
+static int create_rcom(struct dlm_ls *ls, int to_nodeid, int type, int len,
+ struct dlm_rcom **rc_ret, struct dlm_mhandle **mh_ret)
+{
+ int mb_len = sizeof(struct dlm_rcom) + len;
+ struct dlm_mhandle *mh;
+ char *mb;
+
+ mh = dlm_midcomms_get_mhandle(to_nodeid, mb_len, GFP_NOFS, &mb);
+ if (!mh) {
+ log_print("%s to %d type %d len %d ENOBUFS",
+ __func__, to_nodeid, type, len);
+ return -ENOBUFS;
+ }
+
+ _create_rcom(ls, to_nodeid, type, len, rc_ret, mb, mb_len);
+ *mh_ret = mh;
return 0;
}
+static int create_rcom_stateless(struct dlm_ls *ls, int to_nodeid, int type,
+ int len, struct dlm_rcom **rc_ret,
+ void **mh_ret)
+{
+ int mb_len = sizeof(struct dlm_rcom) + len;
+ void *mh;
+ char *mb;
+
+ mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, GFP_NOFS, &mb);
+ if (!mh) {
+ log_print("create_rcom to %d type %d len %d ENOBUFS",
+ to_nodeid, type, len);
+ return -ENOBUFS;
+ }
+
+ _create_rcom(ls, to_nodeid, type, len, rc_ret, mb, mb_len);
+ *mh_ret = mh;
+ return 0;
+}
+
+static void _send_rcom(struct dlm_ls *ls, struct dlm_rcom *rc)
+{
+ dlm_rcom_out(rc);
+}
+
static void send_rcom(struct dlm_ls *ls, struct dlm_mhandle *mh,
struct dlm_rcom *rc)
{
- dlm_rcom_out(rc);
+ _send_rcom(ls, rc);
+ dlm_midcomms_commit_mhandle(mh);
+}
+
+static void send_rcom_stateless(struct dlm_ls *ls, void *mh,
+ struct dlm_rcom *rc)
+{
+ _send_rcom(ls, rc);
dlm_lowcomms_commit_buffer(mh);
}
@@ -141,8 +180,8 @@ static void disallow_sync_reply(struct dlm_ls *ls)
int dlm_rcom_status(struct dlm_ls *ls, int nodeid, uint32_t status_flags)
{
struct dlm_rcom *rc;
- struct dlm_mhandle *mh;
int error = 0;
+ void *mh;
ls->ls_recover_nodeid = nodeid;
@@ -153,8 +192,8 @@ int dlm_rcom_status(struct dlm_ls *ls, int nodeid, uint32_t status_flags)
}
retry:
- error = create_rcom(ls, nodeid, DLM_RCOM_STATUS,
- sizeof(struct rcom_status), &rc, &mh);
+ error = create_rcom_stateless(ls, nodeid, DLM_RCOM_STATUS,
+ sizeof(struct rcom_status), &rc, &mh);
if (error)
goto out;
@@ -163,7 +202,7 @@ retry:
allow_sync_reply(ls, &rc->rc_id);
memset(ls->ls_recover_buf, 0, LOWCOMMS_MAX_TX_BUFFER_LEN);
- send_rcom(ls, mh, rc);
+ send_rcom_stateless(ls, mh, rc);
error = dlm_wait_function(ls, &rcom_response);
disallow_sync_reply(ls);
@@ -191,13 +230,13 @@ retry:
static void receive_rcom_status(struct dlm_ls *ls, struct dlm_rcom *rc_in)
{
struct dlm_rcom *rc;
- struct dlm_mhandle *mh;
struct rcom_status *rs;
uint32_t status;
int nodeid = rc_in->rc_header.h_nodeid;
int len = sizeof(struct rcom_config);
int num_slots = 0;
int error;
+ void *mh;
if (!dlm_slots_version(&rc_in->rc_header)) {
status = dlm_recover_status(ls);
@@ -218,8 +257,8 @@ static void receive_rcom_status(struct dlm_ls *ls, struct dlm_rcom *rc_in)
len += num_slots * sizeof(struct rcom_slot);
do_create:
- error = create_rcom(ls, nodeid, DLM_RCOM_STATUS_REPLY,
- len, &rc, &mh);
+ error = create_rcom_stateless(ls, nodeid, DLM_RCOM_STATUS_REPLY,
+ len, &rc, &mh);
if (error)
return;
@@ -246,7 +285,7 @@ static void receive_rcom_status(struct dlm_ls *ls, struct dlm_rcom *rc_in)
spin_unlock(&ls->ls_recover_lock);
do_send:
- send_rcom(ls, mh, rc);
+ send_rcom_stateless(ls, mh, rc);
}
static void receive_sync_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in)
@@ -271,13 +310,14 @@ static void receive_sync_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in)
int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name, int last_len)
{
struct dlm_rcom *rc;
- struct dlm_mhandle *mh;
int error = 0;
+ void *mh;
ls->ls_recover_nodeid = nodeid;
retry:
- error = create_rcom(ls, nodeid, DLM_RCOM_NAMES, last_len, &rc, &mh);
+ error = create_rcom_stateless(ls, nodeid, DLM_RCOM_NAMES, last_len,
+ &rc, &mh);
if (error)
goto out;
memcpy(rc->rc_buf, last_name, last_len);
@@ -285,7 +325,7 @@ retry:
allow_sync_reply(ls, &rc->rc_id);
memset(ls->ls_recover_buf, 0, LOWCOMMS_MAX_TX_BUFFER_LEN);
- send_rcom(ls, mh, rc);
+ send_rcom_stateless(ls, mh, rc);
error = dlm_wait_function(ls, &rcom_response);
disallow_sync_reply(ls);
@@ -298,14 +338,15 @@ retry:
static void receive_rcom_names(struct dlm_ls *ls, struct dlm_rcom *rc_in)
{
struct dlm_rcom *rc;
- struct dlm_mhandle *mh;
int error, inlen, outlen, nodeid;
+ void *mh;
nodeid = rc_in->rc_header.h_nodeid;
inlen = rc_in->rc_header.h_length - sizeof(struct dlm_rcom);
outlen = LOWCOMMS_MAX_TX_BUFFER_LEN - sizeof(struct dlm_rcom);
- error = create_rcom(ls, nodeid, DLM_RCOM_NAMES_REPLY, outlen, &rc, &mh);
+ error = create_rcom_stateless(ls, nodeid, DLM_RCOM_NAMES_REPLY, outlen,
+ &rc, &mh);
if (error)
return;
rc->rc_id = rc_in->rc_id;
@@ -313,7 +354,7 @@ static void receive_rcom_names(struct dlm_ls *ls, struct dlm_rcom *rc_in)
dlm_copy_master_names(ls, rc_in->rc_buf, inlen, rc->rc_buf, outlen,
nodeid);
- send_rcom(ls, mh, rc);
+ send_rcom_stateless(ls, mh, rc);
}
int dlm_send_rcom_lookup(struct dlm_rsb *r, int dir_nodeid)
@@ -458,7 +499,7 @@ int dlm_send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in)
char *mb;
int mb_len = sizeof(struct dlm_rcom) + sizeof(struct rcom_config);
- mh = dlm_lowcomms_get_buffer(nodeid, mb_len, GFP_NOFS, &mb);
+ mh = dlm_midcomms_get_mhandle(nodeid, mb_len, GFP_NOFS, &mb);
if (!mh)
return -ENOBUFS;
@@ -479,7 +520,7 @@ int dlm_send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in)
rf->rf_lvblen = cpu_to_le32(~0U);
dlm_rcom_out(rc);
- dlm_lowcomms_commit_buffer(mh);
+ dlm_midcomms_commit_mhandle(mh);
return 0;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 22:03:49 +0300