summaryrefslogtreecommitdiffstats
path: root/fs/ocfs2
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/aops.c13
-rw-r--r--fs/ocfs2/cluster/heartbeat.c17
-rw-r--r--fs/ocfs2/cluster/netdebug.c8
-rw-r--r--fs/ocfs2/cluster/nodemanager.c119
-rw-r--r--fs/ocfs2/cluster/nodemanager.h4
-rw-r--r--fs/ocfs2/cluster/tcp.c28
-rw-r--r--fs/ocfs2/cluster/tcp.h12
-rw-r--r--fs/ocfs2/cluster/tcp_internal.h32
-rw-r--r--fs/ocfs2/dlm/dlmdebug.h12
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c2
-rw-r--r--fs/ocfs2/dlmglue.c136
-rw-r--r--fs/ocfs2/file.c2
-rw-r--r--fs/ocfs2/journal.c2
-rw-r--r--fs/ocfs2/localalloc.c2
-rw-r--r--fs/ocfs2/ocfs2.h12
-rw-r--r--fs/ocfs2/ocfs2_fs.h2
-rw-r--r--fs/ocfs2/stack_o2cb.c41
-rw-r--r--fs/ocfs2/stack_user.c59
-rw-r--r--fs/ocfs2/stackglue.c119
-rw-r--r--fs/ocfs2/stackglue.h19
-rw-r--r--fs/ocfs2/super.c6
21 files changed, 405 insertions, 242 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 17964c0505a9..1db080135c6d 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -174,10 +174,17 @@ static int ocfs2_get_block(struct inode *inode, sector_t iblock,
* need to use BH_New is when we're extending i_size on a file
* system which doesn't support holes, in which case BH_New
* allows block_prepare_write() to zero.
+ *
+ * If we see this on a sparse file system, then a truncate has
+ * raced us and removed the cluster. In this case, we clear
+ * the buffers dirty and uptodate bits and let the buffer code
+ * ignore it as a hole.
*/
- mlog_bug_on_msg(create && p_blkno == 0 && ocfs2_sparse_alloc(osb),
- "ino %lu, iblock %llu\n", inode->i_ino,
- (unsigned long long)iblock);
+ if (create && p_blkno == 0 && ocfs2_sparse_alloc(osb)) {
+ clear_buffer_dirty(bh_result);
+ clear_buffer_uptodate(bh_result);
+ goto bail;
+ }
/* Treat the unwritten extent as a hole for zeroing purposes. */
if (p_blkno && !(ext_flags & OCFS2_EXT_UNWRITTEN))
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index f02ccb34604d..443d108211ab 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1489,25 +1489,28 @@ static struct o2hb_heartbeat_group *to_o2hb_heartbeat_group(struct config_group
: NULL;
}
-static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *group,
- const char *name)
+static int o2hb_heartbeat_group_make_item(struct config_group *group,
+ const char *name,
+ struct config_item **new_item)
{
struct o2hb_region *reg = NULL;
- struct config_item *ret = NULL;
+ int ret = 0;
reg = kzalloc(sizeof(struct o2hb_region), GFP_KERNEL);
- if (reg == NULL)
- goto out; /* ENOMEM */
+ if (reg == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
config_item_init_type_name(&reg->hr_item, name, &o2hb_region_type);
- ret = &reg->hr_item;
+ *new_item = &reg->hr_item;
spin_lock(&o2hb_live_lock);
list_add_tail(&reg->hr_all_item, &o2hb_all_regions);
spin_unlock(&o2hb_live_lock);
out:
- if (ret == NULL)
+ if (ret)
kfree(reg);
return ret;
diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
index 7bf3c0ea7bd9..d8bfa0eb41b2 100644
--- a/fs/ocfs2/cluster/netdebug.c
+++ b/fs/ocfs2/cluster/netdebug.c
@@ -146,8 +146,10 @@ static int nst_seq_show(struct seq_file *seq, void *v)
nst->st_task->comm, nst->st_node,
nst->st_sc, nst->st_id, nst->st_msg_type,
nst->st_msg_key,
- nst->st_sock_time.tv_sec, nst->st_sock_time.tv_usec,
- nst->st_send_time.tv_sec, nst->st_send_time.tv_usec,
+ nst->st_sock_time.tv_sec,
+ (unsigned long)nst->st_sock_time.tv_usec,
+ nst->st_send_time.tv_sec,
+ (unsigned long)nst->st_send_time.tv_usec,
nst->st_status_time.tv_sec,
nst->st_status_time.tv_usec);
}
@@ -274,7 +276,7 @@ static void *sc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
return sc; /* unused, just needs to be null when done */
}
-#define TV_SEC_USEC(TV) TV.tv_sec, TV.tv_usec
+#define TV_SEC_USEC(TV) TV.tv_sec, (unsigned long)TV.tv_usec
static int sc_seq_show(struct seq_file *seq, void *v)
{
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index cf9401e8cd0b..b364b7052e46 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -21,7 +21,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/sysctl.h>
#include <linux/configfs.h>
#include "tcp.h"
@@ -36,65 +35,6 @@
* cluster references throughout where nodes are looked up */
struct o2nm_cluster *o2nm_single_cluster = NULL;
-#define OCFS2_MAX_HB_CTL_PATH 256
-static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl";
-
-static ctl_table ocfs2_nm_table[] = {
- {
- .ctl_name = 1,
- .procname = "hb_ctl_path",
- .data = ocfs2_hb_ctl_path,
- .maxlen = OCFS2_MAX_HB_CTL_PATH,
- .mode = 0644,
- .proc_handler = &proc_dostring,
- .strategy = &sysctl_string,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table ocfs2_mod_table[] = {
- {
- .ctl_name = FS_OCFS2_NM,
- .procname = "nm",
- .data = NULL,
- .maxlen = 0,
- .mode = 0555,
- .child = ocfs2_nm_table
- },
- { .ctl_name = 0}
-};
-
-static ctl_table ocfs2_kern_table[] = {
- {
- .ctl_name = FS_OCFS2,
- .procname = "ocfs2",
- .data = NULL,
- .maxlen = 0,
- .mode = 0555,
- .child = ocfs2_mod_table
- },
- { .ctl_name = 0}
-};
-
-static ctl_table ocfs2_root_table[] = {
- {
- .ctl_name = CTL_FS,
- .procname = "fs",
- .data = NULL,
- .maxlen = 0,
- .mode = 0555,
- .child = ocfs2_kern_table
- },
- { .ctl_name = 0 }
-};
-
-static struct ctl_table_header *ocfs2_table_header = NULL;
-
-const char *o2nm_get_hb_ctl_path(void)
-{
- return ocfs2_hb_ctl_path;
-}
-EXPORT_SYMBOL_GPL(o2nm_get_hb_ctl_path);
struct o2nm_node *o2nm_get_node_by_num(u8 node_num)
{
@@ -704,27 +644,32 @@ out:
return ret;
}
-static struct config_item *o2nm_node_group_make_item(struct config_group *group,
- const char *name)
+static int o2nm_node_group_make_item(struct config_group *group,
+ const char *name,
+ struct config_item **new_item)
{
struct o2nm_node *node = NULL;
- struct config_item *ret = NULL;
+ int ret = 0;
- if (strlen(name) > O2NM_MAX_NAME_LEN)
- goto out; /* ENAMETOOLONG */
+ if (strlen(name) > O2NM_MAX_NAME_LEN) {
+ ret = -ENAMETOOLONG;
+ goto out;
+ }
node = kzalloc(sizeof(struct o2nm_node), GFP_KERNEL);
- if (node == NULL)
- goto out; /* ENOMEM */
+ if (node == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
strcpy(node->nd_name, name); /* use item.ci_namebuf instead? */
config_item_init_type_name(&node->nd_item, name, &o2nm_node_type);
spin_lock_init(&node->nd_lock);
- ret = &node->nd_item;
+ *new_item = &node->nd_item;
out:
- if (ret == NULL)
+ if (ret)
kfree(node);
return ret;
@@ -811,25 +756,31 @@ static struct o2nm_cluster_group *to_o2nm_cluster_group(struct config_group *gro
}
#endif
-static struct config_group *o2nm_cluster_group_make_group(struct config_group *group,
- const char *name)
+static int o2nm_cluster_group_make_group(struct config_group *group,
+ const char *name,
+ struct config_group **new_group)
{
struct o2nm_cluster *cluster = NULL;
struct o2nm_node_group *ns = NULL;
- struct config_group *o2hb_group = NULL, *ret = NULL;
+ struct config_group *o2hb_group = NULL;
void *defs = NULL;
+ int ret = 0;
/* this runs under the parent dir's i_mutex; there can be only
* one caller in here at a time */
- if (o2nm_single_cluster)
- goto out; /* ENOSPC */
+ if (o2nm_single_cluster) {
+ ret = -ENOSPC;
+ goto out;
+ }
cluster = kzalloc(sizeof(struct o2nm_cluster), GFP_KERNEL);
ns = kzalloc(sizeof(struct o2nm_node_group), GFP_KERNEL);
defs = kcalloc(3, sizeof(struct config_group *), GFP_KERNEL);
o2hb_group = o2hb_alloc_hb_set();
- if (cluster == NULL || ns == NULL || o2hb_group == NULL || defs == NULL)
+ if (cluster == NULL || ns == NULL || o2hb_group == NULL || defs == NULL) {
+ ret = -ENOMEM;
goto out;
+ }
config_group_init_type_name(&cluster->cl_group, name,
&o2nm_cluster_type);
@@ -846,11 +797,11 @@ static struct config_group *o2nm_cluster_group_make_group(struct config_group *g
cluster->cl_idle_timeout_ms = O2NET_IDLE_TIMEOUT_MS_DEFAULT;
cluster->cl_keepalive_delay_ms = O2NET_KEEPALIVE_DELAY_MS_DEFAULT;
- ret = &cluster->cl_group;
+ *new_group = &cluster->cl_group;
o2nm_single_cluster = cluster;
out:
- if (ret == NULL) {
+ if (ret) {
kfree(cluster);
kfree(ns);
o2hb_free_hb_set(o2hb_group);
@@ -941,9 +892,6 @@ void o2nm_undepend_this_node(void)
static void __exit exit_o2nm(void)
{
- if (ocfs2_table_header)
- unregister_sysctl_table(ocfs2_table_header);
-
/* XXX sync with hb callbacks and shut down hb? */
o2net_unregister_hb_callbacks();
configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys);
@@ -964,16 +912,9 @@ static int __init init_o2nm(void)
if (ret)
goto out;
- ocfs2_table_header = register_sysctl_table(ocfs2_root_table);
- if (!ocfs2_table_header) {
- printk(KERN_ERR "nodemanager: unable to register sysctl\n");
- ret = -ENOMEM; /* or something. */
- goto out_o2net;
- }
-
ret = o2net_register_hb_callbacks();
if (ret)
- goto out_sysctl;
+ goto out_o2net;
config_group_init(&o2nm_cluster_group.cs_subsys.su_group);
mutex_init(&o2nm_cluster_group.cs_subsys.su_mutex);
@@ -990,8 +931,6 @@ static int __init init_o2nm(void)
configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys);
out_callbacks:
o2net_unregister_hb_callbacks();
-out_sysctl:
- unregister_sysctl_table(ocfs2_table_header);
out_o2net:
o2net_exit();
out:
diff --git a/fs/ocfs2/cluster/nodemanager.h b/fs/ocfs2/cluster/nodemanager.h
index 7c860361b8dd..c992ea0da4ad 100644
--- a/fs/ocfs2/cluster/nodemanager.h
+++ b/fs/ocfs2/cluster/nodemanager.h
@@ -33,10 +33,6 @@
#include <linux/configfs.h>
#include <linux/rbtree.h>
-#define FS_OCFS2_NM 1
-
-const char *o2nm_get_hb_ctl_path(void);
-
struct o2nm_node {
spinlock_t nd_lock;
struct config_item nd_item;
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 1e44ad14881a..a27d61581bd6 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -142,53 +142,43 @@ static void o2net_idle_timer(unsigned long data);
static void o2net_sc_postpone_idle(struct o2net_sock_container *sc);
static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc);
-static void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
- u32 msgkey, struct task_struct *task, u8 node)
-{
#ifdef CONFIG_DEBUG_FS
+void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
+ u32 msgkey, struct task_struct *task, u8 node)
+{
INIT_LIST_HEAD(&nst->st_net_debug_item);
nst->st_task = task;
nst->st_msg_type = msgtype;
nst->st_msg_key = msgkey;
nst->st_node = node;
-#endif
}
-static void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
+void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
{
-#ifdef CONFIG_DEBUG_FS
do_gettimeofday(&nst->st_sock_time);
-#endif
}
-static void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
+void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
{
-#ifdef CONFIG_DEBUG_FS
do_gettimeofday(&nst->st_send_time);
-#endif
}
-static void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
+void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
{
-#ifdef CONFIG_DEBUG_FS
do_gettimeofday(&nst->st_status_time);
-#endif
}
-static void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
+void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
struct o2net_sock_container *sc)
{
-#ifdef CONFIG_DEBUG_FS
nst->st_sc = sc;
-#endif
}
-static void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id)
+void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id)
{
-#ifdef CONFIG_DEBUG_FS
nst->st_id = msg_id;
-#endif
}
+#endif /* CONFIG_DEBUG_FS */
static inline int o2net_reconnect_delay(void)
{
diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h
index a705d5d19036..fd6179eb26d4 100644
--- a/fs/ocfs2/cluster/tcp.h
+++ b/fs/ocfs2/cluster/tcp.h
@@ -128,23 +128,23 @@ void o2net_debug_del_nst(struct o2net_send_tracking *nst);
void o2net_debug_add_sc(struct o2net_sock_container *sc);
void o2net_debug_del_sc(struct o2net_sock_container *sc);
#else
-static int o2net_debugfs_init(void)
+static inline int o2net_debugfs_init(void)
{
return 0;
}
-static void o2net_debugfs_exit(void)
+static inline void o2net_debugfs_exit(void)
{
}
-static void o2net_debug_add_nst(struct o2net_send_tracking *nst)
+static inline void o2net_debug_add_nst(struct o2net_send_tracking *nst)
{
}
-static void o2net_debug_del_nst(struct o2net_send_tracking *nst)
+static inline void o2net_debug_del_nst(struct o2net_send_tracking *nst)
{
}
-static void o2net_debug_add_sc(struct o2net_sock_container *sc)
+static inline void o2net_debug_add_sc(struct o2net_sock_container *sc)
{
}
-static void o2net_debug_del_sc(struct o2net_sock_container *sc)
+static inline void o2net_debug_del_sc(struct o2net_sock_container *sc)
{
}
#endif /* CONFIG_DEBUG_FS */
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h
index 8d58cfe410b1..18307ff81b77 100644
--- a/fs/ocfs2/cluster/tcp_internal.h
+++ b/fs/ocfs2/cluster/tcp_internal.h
@@ -224,10 +224,42 @@ struct o2net_send_tracking {
struct timeval st_send_time;
struct timeval st_status_time;
};
+
+void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
+ u32 msgkey, struct task_struct *task, u8 node);
+void o2net_set_nst_sock_time(struct o2net_send_tracking *nst);
+void o2net_set_nst_send_time(struct o2net_send_tracking *nst);
+void o2net_set_nst_status_time(struct o2net_send_tracking *nst);
+void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
+ struct o2net_sock_container *sc);
+void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id);
+
#else
struct o2net_send_tracking {
u32 dummy;
};
+
+static inline void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
+ u32 msgkey, struct task_struct *task, u8 node)
+{
+}
+static inline void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
+{
+}
+static inline void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
+{
+}
+static inline void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
+{
+}
+static inline void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
+ struct o2net_sock_container *sc)
+{
+}
+static inline void o2net_set_nst_msg_id(struct o2net_send_tracking *nst,
+ u32 msg_id)
+{
+}
#endif /* CONFIG_DEBUG_FS */
#endif /* O2CLUSTER_TCP_INTERNAL_H */
diff --git a/fs/ocfs2/dlm/dlmdebug.h b/fs/ocfs2/dlm/dlmdebug.h
index d34a62a3a625..8c686d22f9c7 100644
--- a/fs/ocfs2/dlm/dlmdebug.h
+++ b/fs/ocfs2/dlm/dlmdebug.h
@@ -60,25 +60,25 @@ void dlm_destroy_debugfs_root(void);
#else
-static int dlm_debug_init(struct dlm_ctxt *dlm)
+static inline int dlm_debug_init(struct dlm_ctxt *dlm)
{
return 0;
}
-static void dlm_debug_shutdown(struct dlm_ctxt *dlm)
+static inline void dlm_debug_shutdown(struct dlm_ctxt *dlm)
{
}
-static int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
+static inline int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
{
return 0;
}
-static void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
+static inline void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
{
}
-static int dlm_create_debugfs_root(void)
+static inline int dlm_create_debugfs_root(void)
{
return 0;
}
-static void dlm_destroy_debugfs_root(void)
+static inline void dlm_destroy_debugfs_root(void)
{
}
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index efc015c6128a..44f87caf3683 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -606,7 +606,9 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm,
res->last_used = 0;
+ spin_lock(&dlm->spinlock);
list_add_tail(&res->tracking, &dlm->tracking_list);
+ spin_unlock(&dlm->spinlock);
memset(res->lvb, 0, DLM_LVB_LEN);
memset(res->refmap, 0, sizeof(res->refmap));
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 394d25a131a5..eae3d643a5e4 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -31,6 +31,7 @@
#include <linux/pagemap.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
+#include <linux/time.h>
#define MLOG_MASK_PREFIX ML_DLM_GLUE
#include <cluster/masklog.h>
@@ -59,6 +60,9 @@ struct ocfs2_mask_waiter {
struct completion mw_complete;
unsigned long mw_mask;
unsigned long mw_goal;
+#ifdef CONFIG_OCFS2_FS_STATS
+ unsigned long long mw_lock_start;
+#endif
};
static struct ocfs2_super *ocfs2_get_dentry_osb(struct ocfs2_lock_res *lockres);
@@ -366,6 +370,75 @@ static void ocfs2_remove_lockres_tracking(struct ocfs2_lock_res *res)
spin_unlock(&ocfs2_dlm_tracking_lock);
}
+#ifdef CONFIG_OCFS2_FS_STATS
+static void ocfs2_init_lock_stats(struct ocfs2_lock_res *res)
+{
+ res->l_lock_num_prmode = 0;
+ res->l_lock_num_prmode_failed = 0;
+ res->l_lock_total_prmode = 0;
+ res->l_lock_max_prmode = 0;
+ res->l_lock_num_exmode = 0;
+ res->l_lock_num_exmode_failed = 0;
+ res->l_lock_total_exmode = 0;
+ res->l_lock_max_exmode = 0;
+ res->l_lock_refresh = 0;
+}
+
+static void ocfs2_update_lock_stats(struct ocfs2_lock_res *res, int level,
+ struct ocfs2_mask_waiter *mw, int ret)
+{
+ unsigned long long *num, *sum;
+ unsigned int *max, *failed;
+ struct timespec ts = current_kernel_time();
+ unsigned long long time = timespec_to_ns(&ts) - mw->mw_lock_start;
+
+ if (level == LKM_PRMODE) {
+ num = &res->l_lock_num_prmode;
+ sum = &res->l_lock_total_prmode;
+ max = &res->l_lock_max_prmode;
+ failed = &res->l_lock_num_prmode_failed;
+ } else if (level == LKM_EXMODE) {
+ num = &res->l_lock_num_exmode;
+ sum = &res->l_lock_total_exmode;
+ max = &res->l_lock_max_exmode;
+ failed = &res->l_lock_num_exmode_failed;
+ } else
+ return;
+
+ (*num)++;
+ (*sum) += time;
+ if (time > *max)
+ *max = time;
+ if (ret)
+ (*failed)++;
+}
+
+static inline void ocfs2_track_lock_refresh(struct ocfs2_lock_res *lockres)
+{
+ lockres->l_lock_refresh++;
+}
+
+static inline void ocfs2_init_start_time(struct ocfs2_mask_waiter *mw)
+{
+ struct timespec ts = current_kernel_time();
+ mw->mw_lock_start = timespec_to_ns(&ts);
+}
+#else
+static inline void ocfs2_init_lock_stats(struct ocfs2_lock_res *res)
+{
+}
+static inline void ocfs2_update_lock_stats(struct ocfs2_lock_res *res,
+ int level, struct ocfs2_mask_waiter *mw, int ret)
+{
+}
+static inline void ocfs2_track_lock_refresh(struct ocfs2_lock_res *lockres)
+{
+}
+static inline void ocfs2_init_start_time(struct ocfs2_mask_waiter *mw)
+{
+}
+#endif
+
static void ocfs2_lock_res_init_common(struct ocfs2_super *osb,
struct ocfs2_lock_res *res,
enum ocfs2_lock_type type,
@@ -385,6 +458,8 @@ static void ocfs2_lock_res_init_common(struct ocfs2_super *osb,
res->l_flags = OCFS2_LOCK_INITIALIZED;
ocfs2_add_lockres_tracking(res, osb->osb_dlm_debug);
+
+ ocfs2_init_lock_stats(res);
}
void ocfs2_lock_res_init_once(struct ocfs2_lock_res *res)
@@ -1048,6 +1123,7 @@ static void ocfs2_init_mask_waiter(struct ocfs2_mask_waiter *mw)
{
INIT_LIST_HEAD(&mw->mw_item);
init_completion(&mw->mw_complete);
+ ocfs2_init_start_time(mw);
}
static int ocfs2_wait_for_mask(struct ocfs2_mask_waiter *mw)
@@ -1254,6 +1330,7 @@ out:
goto again;
mlog_errno(ret);
}
+ ocfs2_update_lock_stats(lockres, level, &mw, ret);
mlog_exit(ret);
return ret;
@@ -1554,8 +1631,8 @@ out:
*/
int ocfs2_file_lock(struct file *file, int ex, int trylock)
{
- int ret, level = ex ? LKM_EXMODE : LKM_PRMODE;
- unsigned int lkm_flags = trylock ? LKM_NOQUEUE : 0;
+ int ret, level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
+ unsigned int lkm_flags = trylock ? DLM_LKF_NOQUEUE : 0;
unsigned long flags;
struct ocfs2_file_private *fp = file->private_data;
struct ocfs2_lock_res *lockres = &fp->fp_flock;
@@ -1582,7 +1659,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock)
* Get the lock at NLMODE to start - that way we
* can cancel the upconvert request if need be.
*/
- ret = ocfs2_lock_create(osb, lockres, LKM_NLMODE, 0);
+ ret = ocfs2_lock_create(osb, lockres, DLM_LOCK_NL, 0);
if (ret < 0) {
mlog_errno(ret);
goto out;
@@ -1597,7 +1674,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock)
}
lockres->l_action = OCFS2_AST_CONVERT;
- lkm_flags |= LKM_CONVERT;
+ lkm_flags |= DLM_LKF_CONVERT;
lockres->l_requested = level;
lockres_or_flags(lockres, OCFS2_LOCK_BUSY);
@@ -1664,7 +1741,7 @@ void ocfs2_file_unlock(struct file *file)
if (!(lockres->l_flags & OCFS2_LOCK_ATTACHED))
return;
- if (lockres->l_level == LKM_NLMODE)
+ if (lockres->l_level == DLM_LOCK_NL)
return;
mlog(0, "Unlock: \"%s\" flags: 0x%lx, level: %d, act: %d\n",
@@ -1678,11 +1755,11 @@ void ocfs2_file_unlock(struct file *file)
lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED);
lockres->l_blocking = DLM_LOCK_EX;
- gen = ocfs2_prepare_downconvert(lockres, LKM_NLMODE);
+ gen = ocfs2_prepare_downconvert(lockres, DLM_LOCK_NL);
lockres_add_mask_waiter(lockres, &mw, OCFS2_LOCK_BUSY, 0);
spin_unlock_irqrestore(&lockres->l_lock, flags);
- ret = ocfs2_downconvert_lock(osb, lockres, LKM_NLMODE, 0, gen);
+ ret = ocfs2_downconvert_lock(osb, lockres, DLM_LOCK_NL, 0, gen);
if (ret) {
mlog_errno(ret);
return;
@@ -1983,6 +2060,7 @@ static int ocfs2_inode_lock_update(struct inode *inode,
le32_to_cpu(fe->i_flags));
ocfs2_refresh_inode(inode, fe);
+ ocfs2_track_lock_refresh(lockres);
}
status = 0;
@@ -2267,6 +2345,7 @@ int ocfs2_super_lock(struct ocfs2_super *osb,
if (status < 0)
mlog_errno(status);
+ ocfs2_track_lock_refresh(lockres);
}
bail:
mlog_exit(status);
@@ -2461,7 +2540,7 @@ static void *ocfs2_dlm_seq_next(struct seq_file *m, void *v, loff_t *pos)
}
/* So that debugfs.ocfs2 can determine which format is being used */
-#define OCFS2_DLM_DEBUG_STR_VERSION 1
+#define OCFS2_DLM_DEBUG_STR_VERSION 2
static int ocfs2_dlm_seq_show(struct seq_file *m, void *v)
{
int i;
@@ -2502,6 +2581,47 @@ static int ocfs2_dlm_seq_show(struct seq_file *m, void *v)
for(i = 0; i < DLM_LVB_LEN; i++)
seq_printf(m, "0x%x\t", lvb[i]);
+#ifdef CONFIG_OCFS2_FS_STATS
+# define lock_num_prmode(_l) (_l)->l_lock_num_prmode
+# define lock_num_exmode(_l) (_l)->l_lock_num_exmode
+# define lock_num_prmode_failed(_l) (_l)->l_lock_num_prmode_failed
+# define lock_num_exmode_failed(_l) (_l)->l_lock_num_exmode_failed
+# define lock_total_prmode(_l) (_l)->l_lock_total_prmode
+# define lock_total_exmode(_l) (_l)->l_lock_total_exmode
+# define lock_max_prmode(_l) (_l)->l_lock_max_prmode
+# define lock_max_exmode(_l) (_l)->l_lock_max_exmode
+# define lock_refresh(_l) (_l)->l_lock_refresh
+#else
+# define lock_num_prmode(_l) (0ULL)
+# define lock_num_exmode(_l) (0ULL)
+# define lock_num_prmode_failed(_l) (0)
+# define lock_num_exmode_failed(_l) (0)
+# define lock_total_prmode(_l) (0ULL)
+# define lock_total_exmode(_l) (0ULL)
+# define lock_max_prmode(_l) (0)
+# define lock_max_exmode(_l) (0)
+# define lock_refresh(_l) (0)
+#endif
+ /* The following seq_print was added in version 2 of this output */
+ seq_printf(m, "%llu\t"
+ "%llu\t"
+ "%u\t"
+ "%u\t"
+ "%llu\t"
+ "%llu\t"
+ "%u\t"
+ "%u\t"
+ "%u\t",
+ lock_num_prmode(lockres),
+ lock_num_exmode(lockres),
+ lock_num_prmode_failed(lockres),
+ lock_num_exmode_failed(lockres),
+ lock_total_prmode(lockres),
+ lock_total_exmode(lockres),
+ lock_max_prmode(lockres),
+ lock_max_exmode(lockres),
+ lock_refresh(lockres));
+
/* End the line */
seq_printf(m, "\n");
return 0;
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 57e0d30cde98..e8514e8b6ce8 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2202,7 +2202,7 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
ret = generic_file_aio_read(iocb, iov, nr_segs, iocb->ki_pos);
if (ret == -EINVAL)
- mlog(ML_ERROR, "generic_file_aio_read returned -EINVAL\n");
+ mlog(0, "generic_file_aio_read returned -EINVAL\n");
/* buffered aio wouldn't have proper lock coverage today */
BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT));
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 9698338adc39..a8c19cb3cfdd 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -329,7 +329,7 @@ int ocfs2_extend_trans(handle_t *handle, int nblocks)
mlog(0, "Trying to extend transaction by %d blocks\n", nblocks);
-#ifdef OCFS2_DEBUG_FS
+#ifdef CONFIG_OCFS2_DEBUG_FS
status = 1;
#else
status = journal_extend(handle, nblocks);
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index be774bdc8b36..28e492e4ec88 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -498,7 +498,7 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data;
-#ifdef OCFS2_DEBUG_FS
+#ifdef CONFIG_OCFS2_DEBUG_FS
if (le32_to_cpu(alloc->id1.bitmap1.i_used) !=
ocfs2_local_alloc_count_bits(alloc)) {
ocfs2_error(osb->sb, "local alloc inode %llu says it has "
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 31692379c170..1cb814be8ef1 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -132,6 +132,18 @@ struct ocfs2_lock_res {
wait_queue_head_t l_event;
struct list_head l_debug_list;
+
+#ifdef CONFIG_OCFS2_FS_STATS
+ unsigned long long l_lock_num_prmode; /* PR acquires */
+ unsigned long long l_lock_num_exmode; /* EX acquires */
+ unsigned int l_lock_num_prmode_failed; /* Failed PR gets */
+ unsigned int l_lock_num_exmode_failed; /* Failed EX gets */
+ unsigned long long l_lock_total_prmode; /* Tot wait for PR */
+ unsigned long long l_lock_total_exmode; /* Tot wait for EX */
+ unsigned int l_lock_max_prmode; /* Max wait for PR */
+ unsigned int l_lock_max_exmode; /* Max wait for EX */
+ unsigned int l_lock_refresh; /* Disk refreshes */
+#endif
};
struct ocfs2_dlm_debug {
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 52c426665154..3f1945177629 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -901,7 +901,7 @@ static inline int ocfs2_sprintf_system_inode_name(char *buf, int len,
* list has a copy per slot.
*/
if (type <= OCFS2_LAST_GLOBAL_SYSTEM_INODE)
- chars = snprintf(buf, len,
+ chars = snprintf(buf, len, "%s",
ocfs2_system_inodes[type].si_name);
else
chars = snprintf(buf, len,
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c
index bbd1667aa7d3..fcd120f1493a 100644
--- a/fs/ocfs2/stack_o2cb.c
+++ b/fs/ocfs2/stack_o2cb.c
@@ -317,8 +317,7 @@ out:
return rc;
}
-static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn,
- int hangup_pending)
+static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn)
{
struct dlm_ctxt *dlm = conn->cc_lockspace;
struct o2dlm_private *priv = conn->cc_private;
@@ -333,43 +332,6 @@ static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn,
return 0;
}
-static void o2hb_stop(const char *group)
-{
- int ret;
- char *argv[5], *envp[3];
-
- argv[0] = (char *)o2nm_get_hb_ctl_path();
- argv[1] = "-K";
- argv[2] = "-u";
- argv[3] = (char *)group;
- argv[4] = NULL;
-
- mlog(0, "Run: %s %s %s %s\n", argv[0], argv[1], argv[2], argv[3]);
-
- /* minimal command environment taken from cpu_run_sbin_hotplug */
- envp[0] = "HOME=/";
- envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
- envp[2] = NULL;
-
- ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
- if (ret < 0)
- mlog_errno(ret);
-}
-
-/*
- * Hangup is a hack for tools compatibility. Older ocfs2-tools software
- * expects the filesystem to call "ocfs2_hb_ctl" during unmount. This
- * happens regardless of whether the DLM got started, so we can't do it
- * in ocfs2_cluster_disconnect(). We bring the o2hb_stop() function into
- * the glue and provide a "hangup" API for super.c to call.
- *
- * Other stacks will eventually provide a NULL ->hangup() pointer.
- */
-static void o2cb_cluster_hangup(const char *group, int grouplen)
-{
- o2hb_stop(group);
-}
-
static int o2cb_cluster_this_node(unsigned int *node)
{
int node_num;
@@ -388,7 +350,6 @@ static int o2cb_cluster_this_node(unsigned int *node)
static struct ocfs2_stack_operations o2cb_stack_ops = {
.connect = o2cb_cluster_connect,
.disconnect = o2cb_cluster_disconnect,
- .hangup = o2cb_cluster_hangup,
.this_node = o2cb_cluster_this_node,
.dlm_lock = o2cb_dlm_lock,
.dlm_unlock = o2cb_dlm_unlock,
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index b503772cd0ec..353fc35c6748 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/mutex.h>
+#include <linux/smp_lock.h>
#include <linux/reboot.h>
#include <asm/uaccess.h>
@@ -61,7 +62,7 @@
* negotiated by the client. The client negotiates based on the maximum
* version advertised in /sys/fs/ocfs2/max_locking_protocol. The major
* number from the "SETV" message must match
- * user_stack.sp_proto->lp_max_version.pv_major, and the minor number
+ * ocfs2_user_plugin.sp_proto->lp_max_version.pv_major, and the minor number
* must be less than or equal to ...->lp_max_version.pv_minor.
*
* Once this information has been set, mounts will be allowed. From this
@@ -153,7 +154,7 @@ union ocfs2_control_message {
struct ocfs2_control_message_down u_down;
};
-static struct ocfs2_stack_plugin user_stack;
+static struct ocfs2_stack_plugin ocfs2_user_plugin;
static atomic_t ocfs2_control_opened;
static int ocfs2_control_this_node = -1;
@@ -399,7 +400,7 @@ static int ocfs2_control_do_setversion_msg(struct file *file,
char *ptr = NULL;
struct ocfs2_control_private *p = file->private_data;
struct ocfs2_protocol_version *max =
- &user_stack.sp_proto->lp_max_version;
+ &ocfs2_user_plugin.sp_proto->lp_max_version;
if (ocfs2_control_get_handshake_state(file) !=
OCFS2_CONTROL_HANDSHAKE_PROTOCOL)
@@ -549,26 +550,17 @@ static ssize_t ocfs2_control_read(struct file *file,
size_t count,
loff_t *ppos)
{
- char *proto_string = OCFS2_CONTROL_PROTO;
- size_t to_write = 0;
-
- if (*ppos >= OCFS2_CONTROL_PROTO_LEN)
- return 0;
-
- to_write = OCFS2_CONTROL_PROTO_LEN - *ppos;
- if (to_write > count)
- to_write = count;
- if (copy_to_user(buf, proto_string + *ppos, to_write))
- return -EFAULT;
+ ssize_t ret;
- *ppos += to_write;
+ ret = simple_read_from_buffer(buf, count, ppos,
+ OCFS2_CONTROL_PROTO, OCFS2_CONTROL_PROTO_LEN);
/* Have we read the whole protocol list? */
- if (*ppos >= OCFS2_CONTROL_PROTO_LEN)
+ if (ret > 0 && *ppos >= OCFS2_CONTROL_PROTO_LEN)
ocfs2_control_set_handshake_state(file,
OCFS2_CONTROL_HANDSHAKE_READ);
- return to_write;
+ return ret;
}
static int ocfs2_control_release(struct inode *inode, struct file *file)
@@ -619,10 +611,12 @@ static int ocfs2_control_open(struct inode *inode, struct file *file)
return -ENOMEM;
p->op_this_node = -1;
+ lock_kernel();
mutex_lock(&ocfs2_control_lock);
file->private_data = p;
list_add(&p->op_list, &ocfs2_control_private_list);
mutex_unlock(&ocfs2_control_lock);
+ unlock_kernel();
return 0;
}
@@ -680,7 +674,7 @@ static void fsdlm_lock_ast_wrapper(void *astarg)
struct dlm_lksb *lksb = fsdlm_astarg_to_lksb(astarg);
int status = lksb->sb_status;
- BUG_ON(user_stack.sp_proto == NULL);
+ BUG_ON(ocfs2_user_plugin.sp_proto == NULL);
/*
* For now we're punting on the issue of other non-standard errors
@@ -693,16 +687,16 @@ static void fsdlm_lock_ast_wrapper(void *astarg)
*/
if (status == -DLM_EUNLOCK || status == -DLM_ECANCEL)
- user_stack.sp_proto->lp_unlock_ast(astarg, 0);
+ ocfs2_user_plugin.sp_proto->lp_unlock_ast(astarg, 0);
else
- user_stack.sp_proto->lp_lock_ast(astarg);
+ ocfs2_user_plugin.sp_proto->lp_lock_ast(astarg);
}
static void fsdlm_blocking_ast_wrapper(void *astarg, int level)
{
- BUG_ON(user_stack.sp_proto == NULL);
+ BUG_ON(ocfs2_user_plugin.sp_proto == NULL);
- user_stack.sp_proto->lp_blocking_ast(astarg, level);
+ ocfs2_user_plugin.sp_proto->lp_blocking_ast(astarg, level);
}
static int user_dlm_lock(struct ocfs2_cluster_connection *conn,
@@ -816,8 +810,7 @@ out:
return rc;
}
-static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn,
- int hangup_pending)
+static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn)
{
dlm_release_lockspace(conn->cc_lockspace, 2);
conn->cc_lockspace = NULL;
@@ -838,7 +831,7 @@ static int user_cluster_this_node(unsigned int *this_node)
return 0;
}
-static struct ocfs2_stack_operations user_stack_ops = {
+static struct ocfs2_stack_operations ocfs2_user_plugin_ops = {
.connect = user_cluster_connect,
.disconnect = user_cluster_disconnect,
.this_node = user_cluster_this_node,
@@ -849,20 +842,20 @@ static struct ocfs2_stack_operations user_stack_ops = {
.dump_lksb = user_dlm_dump_lksb,
};
-static struct ocfs2_stack_plugin user_stack = {
+static struct ocfs2_stack_plugin ocfs2_user_plugin = {
.sp_name = "user",
- .sp_ops = &user_stack_ops,
+ .sp_ops = &ocfs2_user_plugin_ops,
.sp_owner = THIS_MODULE,
};
-static int __init user_stack_init(void)
+static int __init ocfs2_user_plugin_init(void)
{
int rc;
rc = ocfs2_control_init();
if (!rc) {
- rc = ocfs2_stack_glue_register(&user_stack);
+ rc = ocfs2_stack_glue_register(&ocfs2_user_plugin);
if (rc)
ocfs2_control_exit();
}
@@ -870,14 +863,14 @@ static int __init user_stack_init(void)
return rc;
}
-static void __exit user_stack_exit(void)
+static void __exit ocfs2_user_plugin_exit(void)
{
- ocfs2_stack_glue_unregister(&user_stack);
+ ocfs2_stack_glue_unregister(&ocfs2_user_plugin);
ocfs2_control_exit();
}
MODULE_AUTHOR("Oracle");
MODULE_DESCRIPTION("ocfs2 driver for userspace cluster stacks");
MODULE_LICENSE("GPL");
-module_init(user_stack_init);
-module_exit(user_stack_exit);
+module_init(ocfs2_user_plugin_init);
+module_exit(ocfs2_user_plugin_exit);
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 119f60cea9cc..10e149ae5e3a 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -26,6 +26,7 @@
#include <linux/fs.h>
#include <linux/kobject.h>
#include <linux/sysfs.h>
+#include <linux/sysctl.h>
#include "ocfs2_fs.h"
@@ -33,11 +34,13 @@
#define OCFS2_STACK_PLUGIN_O2CB "o2cb"
#define OCFS2_STACK_PLUGIN_USER "user"
+#define OCFS2_MAX_HB_CTL_PATH 256
static struct ocfs2_locking_protocol *lproto;
static DEFINE_SPINLOCK(ocfs2_stack_lock);
static LIST_HEAD(ocfs2_stack_list);
static char cluster_stack_name[OCFS2_STACK_LABEL_LEN + 1];
+static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl";
/*
* The stack currently in use. If not null, active_stack->sp_count > 0,
@@ -349,7 +352,7 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
BUG_ON(conn == NULL);
- ret = active_stack->sp_ops->disconnect(conn, hangup_pending);
+ ret = active_stack->sp_ops->disconnect(conn);
/* XXX Should we free it anyway? */
if (!ret) {
@@ -362,13 +365,48 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
}
EXPORT_SYMBOL_GPL(ocfs2_cluster_disconnect);
+/*
+ * Leave the group for this filesystem. This is executed by a userspace
+ * program (stored in ocfs2_hb_ctl_path).
+ */
+static void ocfs2_leave_group(const char *group)
+{
+ int ret;
+ char *argv[5], *envp[3];
+
+ argv[0] = ocfs2_hb_ctl_path;
+ argv[1] = "-K";
+ argv[2] = "-u";
+ argv[3] = (char *)group;
+ argv[4] = NULL;
+
+ /* minimal command environment taken from cpu_run_sbin_hotplug */
+ envp[0] = "HOME=/";
+ envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
+ envp[2] = NULL;
+
+ ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
+ if (ret < 0) {
+ printk(KERN_ERR
+ "ocfs2: Error %d running user helper "
+ "\"%s %s %s %s\"\n",
+ ret, argv[0], argv[1], argv[2], argv[3]);
+ }
+}
+
+/*
+ * Hangup is a required post-umount. ocfs2-tools software expects the
+ * filesystem to call "ocfs2_hb_ctl" during unmount. This happens
+ * regardless of whether the DLM got started, so we can't do it
+ * in ocfs2_cluster_disconnect(). The ocfs2_leave_group() function does
+ * the actual work.
+ */
void ocfs2_cluster_hangup(const char *group, int grouplen)
{
BUG_ON(group == NULL);
BUG_ON(group[grouplen] != '\0');
- if (active_stack->sp_ops->hangup)
- active_stack->sp_ops->hangup(group, grouplen);
+ ocfs2_leave_group(group);
/* cluster_disconnect() was called with hangup_pending==1 */
ocfs2_stack_driver_put();
@@ -548,10 +586,83 @@ error:
return ret;
}
+/*
+ * Sysctl bits
+ *
+ * The sysctl lives at /proc/sys/fs/ocfs2/nm/hb_ctl_path. The 'nm' doesn't
+ * make as much sense in a multiple cluster stack world, but it's safer
+ * and easier to preserve the name.
+ */
+
+#define FS_OCFS2_NM 1
+
+static ctl_table ocfs2_nm_table[] = {
+ {
+ .ctl_name = 1,
+ .procname = "hb_ctl_path",
+ .data = ocfs2_hb_ctl_path,
+ .maxlen = OCFS2_MAX_HB_CTL_PATH,
+ .mode = 0644,
+ .proc_handler = &proc_dostring,
+ .strategy = &sysctl_string,
+ },
+ { .ctl_name = 0 }
+};
+
+static ctl_table ocfs2_mod_table[] = {
+ {
+ .ctl_name = FS_OCFS2_NM,
+ .procname = "nm",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0555,
+ .child = ocfs2_nm_table
+ },
+ { .ctl_name = 0}
+};
+
+static ctl_table ocfs2_kern_table[] = {
+ {
+ .ctl_name = FS_OCFS2,
+ .procname = "ocfs2",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0555,
+ .child = ocfs2_mod_table
+ },
+ { .ctl_name = 0}
+};
+
+static ctl_table ocfs2_root_table[] = {
+ {
+ .ctl_name = CTL_FS,
+ .procname = "fs",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0555,
+ .child = ocfs2_kern_table
+ },
+ { .ctl_name = 0 }
+};
+
+static struct ctl_table_header *ocfs2_table_header = NULL;
+
+
+/*
+ * Initialization
+ */
+
static int __init ocfs2_stack_glue_init(void)
{
strcpy(cluster_stack_name, OCFS2_STACK_PLUGIN_O2CB);
+ ocfs2_table_header = register_sysctl_table(ocfs2_root_table);
+ if (!ocfs2_table_header) {
+ printk(KERN_ERR
+ "ocfs2 stack glue: unable to register sysctl\n");
+ return -ENOMEM; /* or something. */
+ }
+
return ocfs2_sysfs_init();
}
@@ -559,6 +670,8 @@ static void __exit ocfs2_stack_glue_exit(void)
{
lproto = NULL;
ocfs2_sysfs_exit();
+ if (ocfs2_table_header)
+ unregister_sysctl_table(ocfs2_table_header);
}
MODULE_AUTHOR("Oracle");
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index 005e4f170e0f..db56281dd1be 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -134,22 +134,10 @@ struct ocfs2_stack_operations {
* be freed. Thus, a stack must not return from ->disconnect()
* until it will no longer reference the conn pointer.
*
- * If hangup_pending is zero, ocfs2_cluster_disconnect() will also
- * be dropping the reference on the module.
+ * Once this call returns, the stack glue will be dropping this
+ * connection's reference on the module.
*/
- int (*disconnect)(struct ocfs2_cluster_connection *conn,
- int hangup_pending);
-
- /*
- * ocfs2_cluster_hangup() exists for compatibility with older
- * ocfs2 tools. Only the classic stack really needs it. As such
- * ->hangup() is not required of all stacks. See the comment by
- * ocfs2_cluster_hangup() for more details.
- *
- * Note that ocfs2_cluster_hangup() can only be called if
- * hangup_pending was passed to ocfs2_cluster_disconnect().
- */
- void (*hangup)(const char *group, int grouplen);
+ int (*disconnect)(struct ocfs2_cluster_connection *conn);
/*
* ->this_node() returns the cluster's unique identifier for the
@@ -258,4 +246,5 @@ void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto)
/* Used by stack plugins */
int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin);
void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin);
+
#endif /* STACKGLUE_H */
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index df63ba20ae90..ccecfe5094fa 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1703,7 +1703,11 @@ static int ocfs2_check_volume(struct ocfs2_super *osb)
local = ocfs2_mount_local(osb);
/* will play back anything left in the journal. */
- ocfs2_journal_load(osb->journal, local);
+ status = ocfs2_journal_load(osb->journal, local);
+ if (status < 0) {
+ mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status);
+ goto finally;
+ }
if (dirty) {
/* recover my local alloc if we didn't unmount cleanly. */
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-07 05:46:24 +0000