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-rw-r--r--fs/dlm/Makefile1
-rw-r--r--fs/dlm/config.c50
-rw-r--r--fs/dlm/config.h3
-rw-r--r--fs/dlm/dlm_internal.h8
-rw-r--r--fs/dlm/lock.c5
-rw-r--r--fs/dlm/lock.h1
-rw-r--r--fs/dlm/main.c7
-rw-r--r--fs/dlm/member.c34
-rw-r--r--fs/dlm/plock.c (renamed from fs/gfs2/locking/dlm/plock.c)169
-rw-r--r--fs/dlm/recoverd.c1
-rw-r--r--fs/gfs2/locking/dlm/Makefile2
-rw-r--r--fs/gfs2/locking/dlm/lock_dlm.h12
-rw-r--r--fs/gfs2/locking/dlm/main.c8
-rw-r--r--fs/gfs2/locking/dlm/mount.c21
-rw-r--r--include/linux/Kbuild2
-rw-r--r--include/linux/dlm.h7
-rw-r--r--include/linux/dlm_device.h11
-rw-r--r--include/linux/dlm_plock.h50
-rw-r--r--include/linux/dlmconstants.h4
-rw-r--r--include/linux/lock_dlm_plock.h41
20 files changed, 276 insertions, 161 deletions
diff --git a/fs/dlm/Makefile b/fs/dlm/Makefile
index d248e60951ba..ca1c9124c8ce 100644
--- a/fs/dlm/Makefile
+++ b/fs/dlm/Makefile
@@ -10,6 +10,7 @@ dlm-y := ast.o \
midcomms.o \
netlink.o \
lowcomms.o \
+ plock.o \
rcom.o \
recover.o \
recoverd.o \
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index c3ad1dff3b25..eac23bd288b2 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -114,7 +114,7 @@ struct cluster_attribute {
};
static ssize_t cluster_set(struct cluster *cl, unsigned int *cl_field,
- unsigned int *info_field, int check_zero,
+ int *info_field, int check_zero,
const char *buf, size_t len)
{
unsigned int x;
@@ -284,6 +284,7 @@ struct node {
struct list_head list; /* space->members */
int nodeid;
int weight;
+ int new;
};
static struct configfs_group_operations clusters_ops = {
@@ -565,6 +566,7 @@ static struct config_item *make_node(struct config_group *g, const char *name)
config_item_init_type_name(&nd->item, name, &node_type);
nd->nodeid = -1;
nd->weight = 1; /* default weight of 1 if none is set */
+ nd->new = 1; /* set to 0 once it's been read by dlm_nodeid_list() */
mutex_lock(&sp->members_lock);
list_add(&nd->list, &sp->members);
@@ -805,12 +807,13 @@ static void put_comm(struct comm *cm)
}
/* caller must free mem */
-int dlm_nodeid_list(char *lsname, int **ids_out)
+int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
+ int **new_out, int *new_count_out)
{
struct space *sp;
struct node *nd;
- int i = 0, rv = 0;
- int *ids;
+ int i = 0, rv = 0, ids_count = 0, new_count = 0;
+ int *ids, *new;
sp = get_space(lsname);
if (!sp)
@@ -818,23 +821,50 @@ int dlm_nodeid_list(char *lsname, int **ids_out)
mutex_lock(&sp->members_lock);
if (!sp->members_count) {
- rv = 0;
+ rv = -EINVAL;
+ printk(KERN_ERR "dlm: zero members_count\n");
goto out;
}
- ids = kcalloc(sp->members_count, sizeof(int), GFP_KERNEL);
+ ids_count = sp->members_count;
+
+ ids = kcalloc(ids_count, sizeof(int), GFP_KERNEL);
if (!ids) {
rv = -ENOMEM;
goto out;
}
- rv = sp->members_count;
- list_for_each_entry(nd, &sp->members, list)
+ list_for_each_entry(nd, &sp->members, list) {
ids[i++] = nd->nodeid;
+ if (nd->new)
+ new_count++;
+ }
+
+ if (ids_count != i)
+ printk(KERN_ERR "dlm: bad nodeid count %d %d\n", ids_count, i);
+
+ if (!new_count)
+ goto out_ids;
+
+ new = kcalloc(new_count, sizeof(int), GFP_KERNEL);
+ if (!new) {
+ kfree(ids);
+ rv = -ENOMEM;
+ goto out;
+ }
- if (rv != i)
- printk("bad nodeid count %d %d\n", rv, i);
+ i = 0;
+ list_for_each_entry(nd, &sp->members, list) {
+ if (nd->new) {
+ new[i++] = nd->nodeid;
+ nd->new = 0;
+ }
+ }
+ *new_count_out = new_count;
+ *new_out = new;
+ out_ids:
+ *ids_count_out = ids_count;
*ids_out = ids;
out:
mutex_unlock(&sp->members_lock);
diff --git a/fs/dlm/config.h b/fs/dlm/config.h
index a3170fe22090..4f1d6fce58c5 100644
--- a/fs/dlm/config.h
+++ b/fs/dlm/config.h
@@ -35,7 +35,8 @@ extern struct dlm_config_info dlm_config;
int dlm_config_init(void);
void dlm_config_exit(void);
int dlm_node_weight(char *lsname, int nodeid);
-int dlm_nodeid_list(char *lsname, int **ids_out);
+int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
+ int **new_out, int *new_count_out);
int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr);
int dlm_addr_to_nodeid(struct sockaddr_storage *addr, int *nodeid);
int dlm_our_nodeid(void);
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index 7a8824f475f2..5a7ac33b629c 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -42,8 +42,6 @@
#include <linux/dlm.h>
#include "config.h"
-#define DLM_LOCKSPACE_LEN 64
-
/* Size of the temp buffer midcomms allocates on the stack.
We try to make this large enough so most messages fit.
FIXME: should sctp make this unnecessary? */
@@ -132,8 +130,10 @@ struct dlm_member {
struct dlm_recover {
struct list_head list;
- int *nodeids;
+ int *nodeids; /* nodeids of all members */
int node_count;
+ int *new; /* nodeids of new members */
+ int new_count;
uint64_t seq;
};
@@ -579,6 +579,8 @@ static inline int dlm_no_directory(struct dlm_ls *ls)
int dlm_netlink_init(void);
void dlm_netlink_exit(void);
void dlm_timeout_warn(struct dlm_lkb *lkb);
+int dlm_plock_init(void);
+void dlm_plock_exit(void);
#ifdef CONFIG_DLM_DEBUG
int dlm_register_debugfs(void);
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 8f250ac8b928..2d3d1027ce2b 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -165,7 +165,7 @@ void dlm_print_lkb(struct dlm_lkb *lkb)
lkb->lkb_grmode, lkb->lkb_wait_type, lkb->lkb_ast_type);
}
-void dlm_print_rsb(struct dlm_rsb *r)
+static void dlm_print_rsb(struct dlm_rsb *r)
{
printk(KERN_ERR "rsb: nodeid %d flags %lx first %x rlc %d name %s\n",
r->res_nodeid, r->res_flags, r->res_first_lkid,
@@ -1956,8 +1956,7 @@ static void confirm_master(struct dlm_rsb *r, int error)
list_del_init(&lkb->lkb_rsb_lookup);
r->res_first_lkid = lkb->lkb_id;
_request_lock(r, lkb);
- } else
- r->res_nodeid = -1;
+ }
break;
default:
diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h
index 05d9c82e646b..88e93c80cc22 100644
--- a/fs/dlm/lock.h
+++ b/fs/dlm/lock.h
@@ -13,7 +13,6 @@
#ifndef __LOCK_DOT_H__
#define __LOCK_DOT_H__
-void dlm_print_rsb(struct dlm_rsb *r);
void dlm_dump_rsb(struct dlm_rsb *r);
void dlm_print_lkb(struct dlm_lkb *lkb);
void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
diff --git a/fs/dlm/main.c b/fs/dlm/main.c
index 58487fb95a4c..b80e0aa3cfa5 100644
--- a/fs/dlm/main.c
+++ b/fs/dlm/main.c
@@ -46,10 +46,16 @@ static int __init init_dlm(void)
if (error)
goto out_user;
+ error = dlm_plock_init();
+ if (error)
+ goto out_netlink;
+
printk("DLM (built %s %s) installed\n", __DATE__, __TIME__);
return 0;
+ out_netlink:
+ dlm_netlink_exit();
out_user:
dlm_user_exit();
out_debug:
@@ -66,6 +72,7 @@ static int __init init_dlm(void)
static void __exit exit_dlm(void)
{
+ dlm_plock_exit();
dlm_netlink_exit();
dlm_user_exit();
dlm_config_exit();
diff --git a/fs/dlm/member.c b/fs/dlm/member.c
index fa17f5a27883..26133f05ae3a 100644
--- a/fs/dlm/member.c
+++ b/fs/dlm/member.c
@@ -210,6 +210,23 @@ int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv, int *neg_out)
}
}
+ /* Add an entry to ls_nodes_gone for members that were removed and
+ then added again, so that previous state for these nodes will be
+ cleared during recovery. */
+
+ for (i = 0; i < rv->new_count; i++) {
+ if (!dlm_is_member(ls, rv->new[i]))
+ continue;
+ log_debug(ls, "new nodeid %d is a re-added member", rv->new[i]);
+
+ memb = kzalloc(sizeof(struct dlm_member), GFP_KERNEL);
+ if (!memb)
+ return -ENOMEM;
+ memb->nodeid = rv->new[i];
+ list_add_tail(&memb->list, &ls->ls_nodes_gone);
+ neg++;
+ }
+
/* add new members to ls_nodes */
for (i = 0; i < rv->node_count; i++) {
@@ -314,15 +331,16 @@ int dlm_ls_stop(struct dlm_ls *ls)
int dlm_ls_start(struct dlm_ls *ls)
{
struct dlm_recover *rv = NULL, *rv_old;
- int *ids = NULL;
- int error, count;
+ int *ids = NULL, *new = NULL;
+ int error, ids_count = 0, new_count = 0;
rv = kzalloc(sizeof(struct dlm_recover), GFP_KERNEL);
if (!rv)
return -ENOMEM;
- error = count = dlm_nodeid_list(ls->ls_name, &ids);
- if (error <= 0)
+ error = dlm_nodeid_list(ls->ls_name, &ids, &ids_count,
+ &new, &new_count);
+ if (error < 0)
goto fail;
spin_lock(&ls->ls_recover_lock);
@@ -337,14 +355,19 @@ int dlm_ls_start(struct dlm_ls *ls)
}
rv->nodeids = ids;
- rv->node_count = count;
+ rv->node_count = ids_count;
+ rv->new = new;
+ rv->new_count = new_count;
rv->seq = ++ls->ls_recover_seq;
rv_old = ls->ls_recover_args;
ls->ls_recover_args = rv;
spin_unlock(&ls->ls_recover_lock);
if (rv_old) {
+ log_error(ls, "unused recovery %llx %d",
+ (unsigned long long)rv_old->seq, rv_old->node_count);
kfree(rv_old->nodeids);
+ kfree(rv_old->new);
kfree(rv_old);
}
@@ -354,6 +377,7 @@ int dlm_ls_start(struct dlm_ls *ls)
fail:
kfree(rv);
kfree(ids);
+ kfree(new);
return error;
}
diff --git a/fs/gfs2/locking/dlm/plock.c b/fs/dlm/plock.c
index 2ebd374b3143..d6d6e370f89c 100644
--- a/fs/gfs2/locking/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -1,17 +1,19 @@
/*
- * Copyright (C) 2005 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
+#include <linux/fs.h>
#include <linux/miscdevice.h>
-#include <linux/lock_dlm_plock.h>
#include <linux/poll.h>
+#include <linux/dlm.h>
+#include <linux/dlm_plock.h>
-#include "lock_dlm.h"
-
+#include "dlm_internal.h"
+#include "lockspace.h"
static spinlock_t ops_lock;
static struct list_head send_list;
@@ -22,7 +24,7 @@ static wait_queue_head_t recv_wq;
struct plock_op {
struct list_head list;
int done;
- struct gdlm_plock_info info;
+ struct dlm_plock_info info;
};
struct plock_xop {
@@ -34,22 +36,22 @@ struct plock_xop {
};
-static inline void set_version(struct gdlm_plock_info *info)
+static inline void set_version(struct dlm_plock_info *info)
{
- info->version[0] = GDLM_PLOCK_VERSION_MAJOR;
- info->version[1] = GDLM_PLOCK_VERSION_MINOR;
- info->version[2] = GDLM_PLOCK_VERSION_PATCH;
+ info->version[0] = DLM_PLOCK_VERSION_MAJOR;
+ info->version[1] = DLM_PLOCK_VERSION_MINOR;
+ info->version[2] = DLM_PLOCK_VERSION_PATCH;
}
-static int check_version(struct gdlm_plock_info *info)
+static int check_version(struct dlm_plock_info *info)
{
- if ((GDLM_PLOCK_VERSION_MAJOR != info->version[0]) ||
- (GDLM_PLOCK_VERSION_MINOR < info->version[1])) {
- log_error("plock device version mismatch: "
+ if ((DLM_PLOCK_VERSION_MAJOR != info->version[0]) ||
+ (DLM_PLOCK_VERSION_MINOR < info->version[1])) {
+ log_print("plock device version mismatch: "
"kernel (%u.%u.%u), user (%u.%u.%u)",
- GDLM_PLOCK_VERSION_MAJOR,
- GDLM_PLOCK_VERSION_MINOR,
- GDLM_PLOCK_VERSION_PATCH,
+ DLM_PLOCK_VERSION_MAJOR,
+ DLM_PLOCK_VERSION_MINOR,
+ DLM_PLOCK_VERSION_PATCH,
info->version[0],
info->version[1],
info->version[2]);
@@ -68,25 +70,31 @@ static void send_op(struct plock_op *op)
wake_up(&send_wq);
}
-int gdlm_plock(void *lockspace, struct lm_lockname *name,
- struct file *file, int cmd, struct file_lock *fl)
+int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ int cmd, struct file_lock *fl)
{
- struct gdlm_ls *ls = lockspace;
+ struct dlm_ls *ls;
struct plock_op *op;
struct plock_xop *xop;
int rv;
+ ls = dlm_find_lockspace_local(lockspace);
+ if (!ls)
+ return -EINVAL;
+
xop = kzalloc(sizeof(*xop), GFP_KERNEL);
- if (!xop)
- return -ENOMEM;
+ if (!xop) {
+ rv = -ENOMEM;
+ goto out;
+ }
op = &xop->xop;
- op->info.optype = GDLM_PLOCK_OP_LOCK;
+ op->info.optype = DLM_PLOCK_OP_LOCK;
op->info.pid = fl->fl_pid;
op->info.ex = (fl->fl_type == F_WRLCK);
op->info.wait = IS_SETLKW(cmd);
- op->info.fsid = ls->id;
- op->info.number = name->ln_number;
+ op->info.fsid = ls->ls_global_id;
+ op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
if (fl->fl_lmops && fl->fl_lmops->fl_grant) {
@@ -107,12 +115,15 @@ int gdlm_plock(void *lockspace, struct lm_lockname *name,
if (xop->callback == NULL)
wait_event(recv_wq, (op->done != 0));
- else
- return -EINPROGRESS;
+ else {
+ rv = -EINPROGRESS;
+ goto out;
+ }
spin_lock(&ops_lock);
if (!list_empty(&op->list)) {
- printk(KERN_INFO "plock op on list\n");
+ log_error(ls, "dlm_posix_lock: op on list %llx",
+ (unsigned long long)number);
list_del(&op->list);
}
spin_unlock(&ops_lock);
@@ -121,17 +132,19 @@ int gdlm_plock(void *lockspace, struct lm_lockname *name,
if (!rv) {
if (posix_lock_file_wait(file, fl) < 0)
- log_error("gdlm_plock: vfs lock error %x,%llx",
- name->ln_type,
- (unsigned long long)name->ln_number);
+ log_error(ls, "dlm_posix_lock: vfs lock error %llx",
+ (unsigned long long)number);
}
kfree(xop);
+out:
+ dlm_put_lockspace(ls);
return rv;
}
+EXPORT_SYMBOL_GPL(dlm_posix_lock);
/* Returns failure iff a succesful lock operation should be canceled */
-static int gdlm_plock_callback(struct plock_op *op)
+static int dlm_plock_callback(struct plock_op *op)
{
struct file *file;
struct file_lock *fl;
@@ -142,7 +155,8 @@ static int gdlm_plock_callback(struct plock_op *op)
spin_lock(&ops_lock);
if (!list_empty(&op->list)) {
- printk(KERN_INFO "plock op on list\n");
+ log_print("dlm_plock_callback: op on list %llx",
+ (unsigned long long)op->info.number);
list_del(&op->list);
}
spin_unlock(&ops_lock);
@@ -165,19 +179,19 @@ static int gdlm_plock_callback(struct plock_op *op)
* This can only happen in the case of kmalloc() failure.
* The filesystem's own lock is the authoritative lock,
* so a failure to get the lock locally is not a disaster.
- * As long as GFS cannot reliably cancel locks (especially
+ * As long as the fs cannot reliably cancel locks (especially
* in a low-memory situation), we're better off ignoring
* this failure than trying to recover.
*/
- log_error("gdlm_plock: vfs lock error file %p fl %p",
- file, fl);
+ log_print("dlm_plock_callback: vfs lock error %llx file %p fl %p",
+ (unsigned long long)op->info.number, file, fl);
}
rv = notify(flc, NULL, 0);
if (rv) {
/* XXX: We need to cancel the fs lock here: */
- printk("gfs2 lock granted after lock request failed;"
- " dangling lock!\n");
+ log_print("dlm_plock_callback: lock granted after lock request "
+ "failed; dangling lock!\n");
goto out;
}
@@ -186,25 +200,31 @@ out:
return rv;
}
-int gdlm_punlock(void *lockspace, struct lm_lockname *name,
- struct file *file, struct file_lock *fl)
+int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl)
{
- struct gdlm_ls *ls = lockspace;
+ struct dlm_ls *ls;
struct plock_op *op;
int rv;
+ ls = dlm_find_lockspace_local(lockspace);
+ if (!ls)
+ return -EINVAL;
+
op = kzalloc(sizeof(*op), GFP_KERNEL);
- if (!op)
- return -ENOMEM;
+ if (!op) {
+ rv = -ENOMEM;
+ goto out;
+ }
if (posix_lock_file_wait(file, fl) < 0)
- log_error("gdlm_punlock: vfs unlock error %x,%llx",
- name->ln_type, (unsigned long long)name->ln_number);
+ log_error(ls, "dlm_posix_unlock: vfs unlock error %llx",
+ (unsigned long long)number);
- op->info.optype = GDLM_PLOCK_OP_UNLOCK;
+ op->info.optype = DLM_PLOCK_OP_UNLOCK;
op->info.pid = fl->fl_pid;
- op->info.fsid = ls->id;
- op->info.number = name->ln_number;
+ op->info.fsid = ls->ls_global_id;
+ op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
if (fl->fl_lmops && fl->fl_lmops->fl_grant)
@@ -217,7 +237,8 @@ int gdlm_punlock(void *lockspace, struct lm_lockname *name,
spin_lock(&ops_lock);
if (!list_empty(&op->list)) {
- printk(KERN_INFO "punlock op on list\n");
+ log_error(ls, "dlm_posix_unlock: op on list %llx",
+ (unsigned long long)number);
list_del(&op->list);
}
spin_unlock(&ops_lock);
@@ -228,25 +249,34 @@ int gdlm_punlock(void *lockspace, struct lm_lockname *name,
rv = 0;
kfree(op);
+out:
+ dlm_put_lockspace(ls);
return rv;
}
+EXPORT_SYMBOL_GPL(dlm_posix_unlock);
-int gdlm_plock_get(void *lockspace, struct lm_lockname *name,
- struct file *file, struct file_lock *fl)
+int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl)
{
- struct gdlm_ls *ls = lockspace;
+ struct dlm_ls *ls;
struct plock_op *op;
int rv;
+ ls = dlm_find_lockspace_local(lockspace);
+ if (!ls)
+ return -EINVAL;
+
op = kzalloc(sizeof(*op), GFP_KERNEL);
- if (!op)
- return -ENOMEM;
+ if (!op) {
+ rv = -ENOMEM;
+ goto out;
+ }
- op->info.optype = GDLM_PLOCK_OP_GET;
+ op->info.optype = DLM_PLOCK_OP_GET;
op->info.pid = fl->fl_pid;
op->info.ex = (fl->fl_type == F_WRLCK);
- op->info.fsid = ls->id;
- op->info.number = name->ln_number;
+ op->info.fsid = ls->ls_global_id;
+ op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
if (fl->fl_lmops && fl->fl_lmops->fl_grant)
@@ -259,7 +289,8 @@ int gdlm_plock_get(void *lockspace, struct lm_lockname *name,
spin_lock(&ops_lock);
if (!list_empty(&op->list)) {
- printk(KERN_INFO "plock_get op on list\n");
+ log_error(ls, "dlm_posix_get: op on list %llx",
+ (unsigned long long)number);
list_del(&op->list);
}
spin_unlock(&ops_lock);
@@ -281,14 +312,17 @@ int gdlm_plock_get(void *lockspace, struct lm_lockname *name,
}
kfree(op);
+out:
+ dlm_put_lockspace(ls);
return rv;
}
+EXPORT_SYMBOL_GPL(dlm_posix_get);
/* a read copies out one plock request from the send list */
static ssize_t dev_read(struct file *file, char __user *u, size_t count,
loff_t *ppos)
{
- struct gdlm_plock_info info;
+ struct dlm_plock_info info;
struct plock_op *op = NULL;
if (count < sizeof(info))
@@ -315,7 +349,7 @@ static ssize_t dev_read(struct file *file, char __user *u, size_t count,
static ssize_t dev_write(struct file *file, const char __user *u, size_t count,
loff_t *ppos)
{
- struct gdlm_plock_info info;
+ struct dlm_plock_info info;
struct plock_op *op;
int found = 0;
@@ -345,12 +379,12 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count,
struct plock_xop *xop;
xop = (struct plock_xop *)op;
if (xop->callback)
- count = gdlm_plock_callback(op);
+ count = dlm_plock_callback(op);
else
wake_up(&recv_wq);
} else
- printk(KERN_INFO "gdlm dev_write no op %x %llx\n", info.fsid,
- (unsigned long long)info.number);
+ log_print("dev_write no op %x %llx", info.fsid,
+ (unsigned long long)info.number);
return count;
}
@@ -377,11 +411,11 @@ static const struct file_operations dev_fops = {
static struct miscdevice plock_dev_misc = {
.minor = MISC_DYNAMIC_MINOR,
- .name = GDLM_PLOCK_MISC_NAME,
+ .name = DLM_PLOCK_MISC_NAME,
.fops = &dev_fops
};
-int gdlm_plock_init(void)
+int dlm_plock_init(void)
{
int rv;
@@ -393,14 +427,13 @@ int gdlm_plock_init(void)
rv = misc_register(&plock_dev_misc);
if (rv)
- printk(KERN_INFO "gdlm_plock_init: misc_register failed %d",
- rv);
+ log_print("dlm_plock_init: misc_register failed %d", rv);
return rv;
}
-void gdlm_plock_exit(void)
+void dlm_plock_exit(void)
{
if (misc_deregister(&plock_dev_misc) < 0)
- printk(KERN_INFO "gdlm_plock_exit: misc_deregister failed");
+ log_print("dlm_plock_exit: misc_deregister failed");
}
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c
index 997f9531d594..fd677c8c3d3b 100644
--- a/fs/dlm/recoverd.c
+++ b/fs/dlm/recoverd.c
@@ -257,6 +257,7 @@ static void do_ls_recovery(struct dlm_ls *ls)
if (rv) {
ls_recover(ls, rv);
kfree(rv->nodeids);
+ kfree(rv->new);
kfree(rv);
}
}
diff --git a/fs/gfs2/locking/dlm/Makefile b/fs/gfs2/locking/dlm/Makefile
index 89b93b6b45cf..2609bb6cd013 100644
--- a/fs/gfs2/locking/dlm/Makefile
+++ b/fs/gfs2/locking/dlm/Makefile
@@ -1,3 +1,3 @@
obj-$(CONFIG_GFS2_FS_LOCKING_DLM) += lock_dlm.o
-lock_dlm-y := lock.o main.o mount.o sysfs.o thread.o plock.o
+lock_dlm-y := lock.o main.o mount.o sysfs.o thread.o
diff --git a/fs/gfs2/locking/dlm/lock_dlm.h b/fs/gfs2/locking/dlm/lock_dlm.h
index 58fcf8c5bf39..a243cf69c54e 100644
--- a/fs/gfs2/locking/dlm/lock_dlm.h
+++ b/fs/gfs2/locking/dlm/lock_dlm.h
@@ -25,6 +25,7 @@
#include <net/sock.h>
#include <linux/dlm.h>
+#include <linux/dlm_plock.h>
#include <linux/lm_interface.h>
/*
@@ -173,17 +174,6 @@ void gdlm_cancel(void *);
int gdlm_hold_lvb(void *, char **);
void gdlm_unhold_lvb(void *, char *);
-/* plock.c */
-
-int gdlm_plock_init(void);
-void gdlm_plock_exit(void);
-int gdlm_plock(void *, struct lm_lockname *, struct file *, int,
- struct file_lock *);
-int gdlm_plock_get(void *, struct lm_lockname *, struct file *,
- struct file_lock *);
-int gdlm_punlock(void *, struct lm_lockname *, struct file *,
- struct file_lock *);
-
/* mount.c */
extern const struct lm_lockops gdlm_ops;
diff --git a/fs/gfs2/locking/dlm/main.c b/fs/gfs2/locking/dlm/main.c
index 36a225850bd8..b9a03a7ff801 100644
--- a/fs/gfs2/locking/dlm/main.c
+++ b/fs/gfs2/locking/dlm/main.c
@@ -28,13 +28,6 @@ static int __init init_lock_dlm(void)
return error;
}
- error = gdlm_plock_init();
- if (error) {
- gdlm_sysfs_exit();
- gfs2_unregister_lockproto(&gdlm_ops);
- return error;
- }
-
printk(KERN_INFO
"Lock_DLM (built %s %s) installed\n", __DATE__, __TIME__);
return 0;
@@ -42,7 +35,6 @@ static int __init init_lock_dlm(void)
static void __exit exit_lock_dlm(void)
{
- gdlm_plock_exit();
gdlm_sysfs_exit();
gfs2_unregister_lockproto(&gdlm_ops);
}
diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c
index f2efff424224..470bdf650b50 100644
--- a/fs/gfs2/locking/dlm/mount.c
+++ b/fs/gfs2/locking/dlm/mount.c
@@ -236,6 +236,27 @@ static void gdlm_withdraw(void *lockspace)
gdlm_kobject_release(ls);
}
+static int gdlm_plock(void *lockspace, struct lm_lockname *name,
+ struct file *file, int cmd, struct file_lock *fl)
+{
+ struct gdlm_ls *ls = lockspace;
+ return dlm_posix_lock(ls->dlm_lockspace, name->ln_number, file, cmd, fl);
+}
+
+static int gdlm_punlock(void *lockspace, struct lm_lockname *name,
+ struct file *file, struct file_lock *fl)
+{
+ struct gdlm_ls *ls = lockspace;
+ return dlm_posix_unlock(ls->dlm_lockspace, name->ln_number, file, fl);
+}
+
+static int gdlm_plock_get(void *lockspace, struct lm_lockname *name,
+ struct file *file, struct file_lock *fl)
+{
+ struct gdlm_ls *ls = lockspace;
+ return dlm_posix_get(ls->dlm_lockspace, name->ln_number, file, fl);
+}
+
const struct lm_lockops gdlm_ops = {
.lm_proto_name = "lock_dlm",
.lm_mount = gdlm_mount,
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 97a88b2b0c8e..cbb5ccb27de3 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -100,7 +100,7 @@ header-y += ixjuser.h
header-y += jffs2.h
header-y += keyctl.h
header-y += limits.h
-header-y += lock_dlm_plock.h
+header-y += dlm_plock.h
header-y += magic.h
header-y += major.h
header-y += matroxfb.h
diff --git a/include/linux/dlm.h b/include/linux/dlm.h
index c743fbc769db..203a025e30e5 100644
--- a/include/linux/dlm.h
+++ b/include/linux/dlm.h
@@ -21,10 +21,7 @@
/* Lock levels and flags are here */
#include <linux/dlmconstants.h>
-
-
-#define DLM_RESNAME_MAXLEN 64
-
+#include <linux/types.h>
typedef void dlm_lockspace_t;
@@ -63,7 +60,7 @@ typedef void dlm_lockspace_t;
struct dlm_lksb {
int sb_status;
- uint32_t sb_lkid;
+ __u32 sb_lkid;
char sb_flags;
char * sb_lvbptr;
};
diff --git a/include/linux/dlm_device.h b/include/linux/dlm_device.h
index 9642277a152a..c6034508fed9 100644
--- a/include/linux/dlm_device.h
+++ b/include/linux/dlm_device.h
@@ -11,10 +11,16 @@
*******************************************************************************
******************************************************************************/
+#ifndef _LINUX_DLM_DEVICE_H
+#define _LINUX_DLM_DEVICE_H
+
/* This is the device interface for dlm, most users will use a library
* interface.
*/
+#include <linux/dlm.h>
+#include <linux/types.h>
+
#define DLM_USER_LVB_LEN 32
/* Version of the device interface */
@@ -94,10 +100,9 @@ struct dlm_lock_result {
#define DLM_USER_PURGE 6
#define DLM_USER_DEADLOCK 7
-/* Arbitrary length restriction */
-#define MAX_LS_NAME_LEN 64
-
/* Lockspace flags */
#define DLM_USER_LSFLG_AUTOFREE 1
#define DLM_USER_LSFLG_FORCEFREE 2
+#endif
+
diff --git a/include/linux/dlm_plock.h b/include/linux/dlm_plock.h
new file mode 100644
index 000000000000..18d5fdbceb74
--- /dev/null
+++ b/include/linux/dlm_plock.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ */
+
+#ifndef __DLM_PLOCK_DOT_H__
+#define __DLM_PLOCK_DOT_H__
+
+#define DLM_PLOCK_MISC_NAME "dlm_plock"
+
+#define DLM_PLOCK_VERSION_MAJOR 1
+#define DLM_PLOCK_VERSION_MINOR 1
+#define DLM_PLOCK_VERSION_PATCH 0
+
+enum {
+ DLM_PLOCK_OP_LOCK = 1,
+ DLM_PLOCK_OP_UNLOCK,
+ DLM_PLOCK_OP_GET,
+};
+
+struct dlm_plock_info {
+ __u32 version[3];
+ __u8 optype;
+ __u8 ex;
+ __u8 wait;
+ __u8 pad;
+ __u32 pid;
+ __s32 nodeid;
+ __s32 rv;
+ __u32 fsid;
+ __u64 number;
+ __u64 start;
+ __u64 end;
+ __u64 owner;
+};
+
+#ifdef __KERNEL__
+int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ int cmd, struct file_lock *fl);
+int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl);
+int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl);
+#endif /* __KERNEL__ */
+
+#endif
+
diff --git a/include/linux/dlmconstants.h b/include/linux/dlmconstants.h
index fddb3d3ff321..47bf08dc7566 100644
--- a/include/linux/dlmconstants.h
+++ b/include/linux/dlmconstants.h
@@ -18,6 +18,10 @@
* Constants used by DLM interface.
*/
+#define DLM_LOCKSPACE_LEN 64
+#define DLM_RESNAME_MAXLEN 64
+
+
/*
* Lock Modes
*/
diff --git a/include/linux/lock_dlm_plock.h b/include/linux/lock_dlm_plock.h
deleted file mode 100644
index fc3415113973..000000000000
--- a/include/linux/lock_dlm_plock.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2005 Red Hat, Inc. All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
- */
-
-#ifndef __LOCK_DLM_PLOCK_DOT_H__
-#define __LOCK_DLM_PLOCK_DOT_H__
-
-#define GDLM_PLOCK_MISC_NAME "lock_dlm_plock"
-
-#define GDLM_PLOCK_VERSION_MAJOR 1
-#define GDLM_PLOCK_VERSION_MINOR 1
-#define GDLM_PLOCK_VERSION_PATCH 0
-
-enum {
- GDLM_PLOCK_OP_LOCK = 1,
- GDLM_PLOCK_OP_UNLOCK,
- GDLM_PLOCK_OP_GET,
-};
-
-struct gdlm_plock_info {
- __u32 version[3];
- __u8 optype;
- __u8 ex;
- __u8 wait;
- __u8 pad;
- __u32 pid;
- __s32 nodeid;
- __s32 rv;
- __u32 fsid;
- __u64 number;
- __u64 start;
- __u64 end;
- __u64 owner;
-};
-
-#endif
-
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