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Diffstat (limited to 'fs/dlm')
-rw-r--r--fs/dlm/dir.c6
-rw-r--r--fs/dlm/dir.h3
-rw-r--r--fs/dlm/dlm_internal.h6
-rw-r--r--fs/dlm/lock.c6
-rw-r--r--fs/dlm/lock.h2
-rw-r--r--fs/dlm/lockspace.c2
-rw-r--r--fs/dlm/recover.c30
-rw-r--r--fs/dlm/recover.h8
-rw-r--r--fs/dlm/recoverd.c54
9 files changed, 47 insertions, 70 deletions
diff --git a/fs/dlm/dir.c b/fs/dlm/dir.c
index 10753486049a..3da00c46cbb3 100644
--- a/fs/dlm/dir.c
+++ b/fs/dlm/dir.c
@@ -47,15 +47,13 @@ int dlm_dir_nodeid(struct dlm_rsb *r)
return r->res_dir_nodeid;
}
-void dlm_recover_dir_nodeid(struct dlm_ls *ls)
+void dlm_recover_dir_nodeid(struct dlm_ls *ls, const struct list_head *root_list)
{
struct dlm_rsb *r;
- down_read(&ls->ls_root_sem);
- list_for_each_entry(r, &ls->ls_root_list, res_root_list) {
+ list_for_each_entry(r, root_list, res_root_list) {
r->res_dir_nodeid = dlm_hash2nodeid(ls, r->res_hash);
}
- up_read(&ls->ls_root_sem);
}
int dlm_recover_directory(struct dlm_ls *ls, uint64_t seq)
diff --git a/fs/dlm/dir.h b/fs/dlm/dir.h
index 39ecb69d7ef3..5b2a7ee3762d 100644
--- a/fs/dlm/dir.h
+++ b/fs/dlm/dir.h
@@ -14,7 +14,8 @@
int dlm_dir_nodeid(struct dlm_rsb *rsb);
int dlm_hash2nodeid(struct dlm_ls *ls, uint32_t hash);
-void dlm_recover_dir_nodeid(struct dlm_ls *ls);
+void dlm_recover_dir_nodeid(struct dlm_ls *ls,
+ const struct list_head *root_list);
int dlm_recover_directory(struct dlm_ls *ls, uint64_t seq);
void dlm_copy_master_names(struct dlm_ls *ls, const char *inbuf, int inlen,
char *outbuf, int outlen, int nodeid);
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index 3524f2b33f2c..f434325d5bc8 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -674,10 +674,8 @@ struct dlm_ls {
wait_queue_head_t ls_recover_lock_wait;
spinlock_t ls_clear_proc_locks;
- struct list_head ls_root_list; /* root resources */
- struct rw_semaphore ls_root_sem; /* protect root_list */
- struct list_head ls_masters_list; /* root resources */
- rwlock_t ls_masters_lock; /* protect root_list */
+ struct list_head ls_masters_list; /* root resources */
+ rwlock_t ls_masters_lock; /* protect root_list */
const struct dlm_lockspace_ops *ls_ops;
void *ls_ops_arg;
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index e0ab7432ca4d..43a2f4d0af53 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -5227,7 +5227,7 @@ static void purge_dead_list(struct dlm_ls *ls, struct dlm_rsb *r,
/* Get rid of locks held by nodes that are gone. */
-void dlm_recover_purge(struct dlm_ls *ls)
+void dlm_recover_purge(struct dlm_ls *ls, const struct list_head *root_list)
{
struct dlm_rsb *r;
struct dlm_member *memb;
@@ -5246,8 +5246,7 @@ void dlm_recover_purge(struct dlm_ls *ls)
if (!nodes_count)
return;
- down_write(&ls->ls_root_sem);
- list_for_each_entry(r, &ls->ls_root_list, res_root_list) {
+ list_for_each_entry(r, root_list, res_root_list) {
hold_rsb(r);
lock_rsb(r);
if (is_master(r)) {
@@ -5262,7 +5261,6 @@ void dlm_recover_purge(struct dlm_ls *ls)
unhold_rsb(r);
cond_resched();
}
- up_write(&ls->ls_root_sem);
if (lkb_count)
log_rinfo(ls, "dlm_recover_purge %u locks for %u nodes",
diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h
index b54e2cbbe6e2..c8ff7780d3cc 100644
--- a/fs/dlm/lock.h
+++ b/fs/dlm/lock.h
@@ -31,7 +31,7 @@ int dlm_master_lookup(struct dlm_ls *ls, int from_nodeid, const char *name,
int dlm_search_rsb_tree(struct rb_root *tree, const void *name, int len,
struct dlm_rsb **r_ret);
-void dlm_recover_purge(struct dlm_ls *ls);
+void dlm_recover_purge(struct dlm_ls *ls, const struct list_head *root_list);
void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
void dlm_recover_grant(struct dlm_ls *ls);
int dlm_recover_waiters_post(struct dlm_ls *ls);
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index c427c76b5f07..da756e5c0f6c 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -580,8 +580,6 @@ static int new_lockspace(const char *name, const char *cluster,
ls->ls_recover_list_count = 0;
ls->ls_local_handle = ls;
init_waitqueue_head(&ls->ls_wait_general);
- INIT_LIST_HEAD(&ls->ls_root_list);
- init_rwsem(&ls->ls_root_sem);
INIT_LIST_HEAD(&ls->ls_masters_list);
rwlock_init(&ls->ls_masters_lock);
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index 6abc283f8f36..172c6b73f37a 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -519,7 +519,8 @@ static int recover_master_static(struct dlm_rsb *r, unsigned int *count)
* the correct dir node.
*/
-int dlm_recover_masters(struct dlm_ls *ls, uint64_t seq)
+int dlm_recover_masters(struct dlm_ls *ls, uint64_t seq,
+ const struct list_head *root_list)
{
struct dlm_rsb *r;
unsigned int total = 0;
@@ -529,10 +530,8 @@ int dlm_recover_masters(struct dlm_ls *ls, uint64_t seq)
log_rinfo(ls, "dlm_recover_masters");
- down_read(&ls->ls_root_sem);
- list_for_each_entry(r, &ls->ls_root_list, res_root_list) {
+ list_for_each_entry(r, root_list, res_root_list) {
if (dlm_recovery_stopped(ls)) {
- up_read(&ls->ls_root_sem);
error = -EINTR;
goto out;
}
@@ -546,12 +545,9 @@ int dlm_recover_masters(struct dlm_ls *ls, uint64_t seq)
cond_resched();
total++;
- if (error) {
- up_read(&ls->ls_root_sem);
+ if (error)
goto out;
- }
}
- up_read(&ls->ls_root_sem);
log_rinfo(ls, "dlm_recover_masters %u of %u", count, total);
@@ -656,13 +652,13 @@ static int recover_locks(struct dlm_rsb *r, uint64_t seq)
return error;
}
-int dlm_recover_locks(struct dlm_ls *ls, uint64_t seq)
+int dlm_recover_locks(struct dlm_ls *ls, uint64_t seq,
+ const struct list_head *root_list)
{
struct dlm_rsb *r;
int error, count = 0;
- down_read(&ls->ls_root_sem);
- list_for_each_entry(r, &ls->ls_root_list, res_root_list) {
+ list_for_each_entry(r, root_list, res_root_list) {
if (is_master(r)) {
rsb_clear_flag(r, RSB_NEW_MASTER);
continue;
@@ -673,19 +669,15 @@ int dlm_recover_locks(struct dlm_ls *ls, uint64_t seq)
if (dlm_recovery_stopped(ls)) {
error = -EINTR;
- up_read(&ls->ls_root_sem);
goto out;
}
error = recover_locks(r, seq);
- if (error) {
- up_read(&ls->ls_root_sem);
+ if (error)
goto out;
- }
count += r->res_recover_locks_count;
}
- up_read(&ls->ls_root_sem);
log_rinfo(ls, "dlm_recover_locks %d out", count);
@@ -854,13 +846,12 @@ static void recover_grant(struct dlm_rsb *r)
rsb_set_flag(r, RSB_RECOVER_GRANT);
}
-void dlm_recover_rsbs(struct dlm_ls *ls)
+void dlm_recover_rsbs(struct dlm_ls *ls, const struct list_head *root_list)
{
struct dlm_rsb *r;
unsigned int count = 0;
- down_read(&ls->ls_root_sem);
- list_for_each_entry(r, &ls->ls_root_list, res_root_list) {
+ list_for_each_entry(r, root_list, res_root_list) {
lock_rsb(r);
if (is_master(r)) {
if (rsb_flag(r, RSB_RECOVER_CONVERT))
@@ -881,7 +872,6 @@ void dlm_recover_rsbs(struct dlm_ls *ls)
rsb_clear_flag(r, RSB_NEW_MASTER2);
unlock_rsb(r);
}
- up_read(&ls->ls_root_sem);
if (count)
log_rinfo(ls, "dlm_recover_rsbs %d done", count);
diff --git a/fs/dlm/recover.h b/fs/dlm/recover.h
index 0b54550ee055..efc79a6e577d 100644
--- a/fs/dlm/recover.h
+++ b/fs/dlm/recover.h
@@ -19,12 +19,14 @@ int dlm_recover_members_wait(struct dlm_ls *ls, uint64_t seq);
int dlm_recover_directory_wait(struct dlm_ls *ls, uint64_t seq);
int dlm_recover_locks_wait(struct dlm_ls *ls, uint64_t seq);
int dlm_recover_done_wait(struct dlm_ls *ls, uint64_t seq);
-int dlm_recover_masters(struct dlm_ls *ls, uint64_t seq);
+int dlm_recover_masters(struct dlm_ls *ls, uint64_t seq,
+ const struct list_head *root_list);
int dlm_recover_master_reply(struct dlm_ls *ls, const struct dlm_rcom *rc);
-int dlm_recover_locks(struct dlm_ls *ls, uint64_t seq);
+int dlm_recover_locks(struct dlm_ls *ls, uint64_t seq,
+ const struct list_head *root_list);
void dlm_recovered_lock(struct dlm_rsb *r);
void dlm_clear_toss(struct dlm_ls *ls);
-void dlm_recover_rsbs(struct dlm_ls *ls);
+void dlm_recover_rsbs(struct dlm_ls *ls, const struct list_head *root_list);
#endif /* __RECOVER_DOT_H__ */
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c
index dfce8fc6a783..f6acc7351625 100644
--- a/fs/dlm/recoverd.c
+++ b/fs/dlm/recoverd.c
@@ -62,23 +62,17 @@ static void dlm_release_masters_list(struct dlm_ls *ls)
write_unlock(&ls->ls_masters_lock);
}
-static void dlm_create_root_list(struct dlm_ls *ls)
+static void dlm_create_root_list(struct dlm_ls *ls, struct list_head *root_list)
{
struct rb_node *n;
struct dlm_rsb *r;
int i;
- down_write(&ls->ls_root_sem);
- if (!list_empty(&ls->ls_root_list)) {
- log_error(ls, "root list not empty");
- goto out;
- }
-
for (i = 0; i < ls->ls_rsbtbl_size; i++) {
spin_lock_bh(&ls->ls_rsbtbl[i].lock);
for (n = rb_first(&ls->ls_rsbtbl[i].keep); n; n = rb_next(n)) {
r = rb_entry(n, struct dlm_rsb, res_hashnode);
- list_add(&r->res_root_list, &ls->ls_root_list);
+ list_add(&r->res_root_list, root_list);
dlm_hold_rsb(r);
}
@@ -86,20 +80,16 @@ static void dlm_create_root_list(struct dlm_ls *ls)
log_error(ls, "%s toss not empty", __func__);
spin_unlock_bh(&ls->ls_rsbtbl[i].lock);
}
- out:
- up_write(&ls->ls_root_sem);
}
-static void dlm_release_root_list(struct dlm_ls *ls)
+static void dlm_release_root_list(struct list_head *root_list)
{
struct dlm_rsb *r, *safe;
- down_write(&ls->ls_root_sem);
- list_for_each_entry_safe(r, safe, &ls->ls_root_list, res_root_list) {
+ list_for_each_entry_safe(r, safe, root_list, res_root_list) {
list_del_init(&r->res_root_list);
dlm_put_rsb(r);
}
- up_write(&ls->ls_root_sem);
}
/* If the start for which we're re-enabling locking (seq) has been superseded
@@ -131,6 +121,7 @@ static int enable_locking(struct dlm_ls *ls, uint64_t seq)
static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
{
+ LIST_HEAD(root_list);
unsigned long start;
int error, neg = 0;
@@ -147,7 +138,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
* routines.
*/
- dlm_create_root_list(ls);
+ dlm_create_root_list(ls, &root_list);
/*
* Add or remove nodes from the lockspace's ls_nodes list.
@@ -163,7 +154,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
goto fail;
}
- dlm_recover_dir_nodeid(ls);
+ dlm_recover_dir_nodeid(ls, &root_list);
/* Create a snapshot of all active rsbs were we are the master of.
* During the barrier between dlm_recover_members_wait() and
@@ -179,7 +170,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
error = dlm_create_masters_list(ls);
if (error) {
log_rinfo(ls, "dlm_create_masters_list error %d", error);
- goto fail;
+ goto fail_root_list;
}
ls->ls_recover_dir_sent_res = 0;
@@ -192,7 +183,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
if (error) {
log_rinfo(ls, "dlm_recover_members_wait error %d", error);
dlm_release_masters_list(ls);
- goto fail;
+ goto fail_root_list;
}
start = jiffies;
@@ -206,7 +197,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
if (error) {
log_rinfo(ls, "dlm_recover_directory error %d", error);
dlm_release_masters_list(ls);
- goto fail;
+ goto fail_root_list;
}
dlm_set_recover_status(ls, DLM_RS_DIR);
@@ -215,7 +206,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
if (error) {
log_rinfo(ls, "dlm_recover_directory_wait error %d", error);
dlm_release_masters_list(ls);
- goto fail;
+ goto fail_root_list;
}
dlm_release_masters_list(ls);
@@ -233,7 +224,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
if (dlm_recovery_stopped(ls)) {
error = -EINTR;
- goto fail;
+ goto fail_root_list;
}
if (neg || dlm_no_directory(ls)) {
@@ -241,27 +232,27 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
* Clear lkb's for departed nodes.
*/
- dlm_recover_purge(ls);
+ dlm_recover_purge(ls, &root_list);
/*
* Get new master nodeid's for rsb's that were mastered on
* departed nodes.
*/
- error = dlm_recover_masters(ls, rv->seq);
+ error = dlm_recover_masters(ls, rv->seq, &root_list);
if (error) {
log_rinfo(ls, "dlm_recover_masters error %d", error);
- goto fail;
+ goto fail_root_list;
}
/*
* Send our locks on remastered rsb's to the new masters.
*/
- error = dlm_recover_locks(ls, rv->seq);
+ error = dlm_recover_locks(ls, rv->seq, &root_list);
if (error) {
log_rinfo(ls, "dlm_recover_locks error %d", error);
- goto fail;
+ goto fail_root_list;
}
dlm_set_recover_status(ls, DLM_RS_LOCKS);
@@ -269,7 +260,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
error = dlm_recover_locks_wait(ls, rv->seq);
if (error) {
log_rinfo(ls, "dlm_recover_locks_wait error %d", error);
- goto fail;
+ goto fail_root_list;
}
log_rinfo(ls, "dlm_recover_locks %u in",
@@ -281,7 +272,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
* settings.
*/
- dlm_recover_rsbs(ls);
+ dlm_recover_rsbs(ls, &root_list);
} else {
/*
* Other lockspace members may be going through the "neg" steps
@@ -293,11 +284,11 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
error = dlm_recover_locks_wait(ls, rv->seq);
if (error) {
log_rinfo(ls, "dlm_recover_locks_wait error %d", error);
- goto fail;
+ goto fail_root_list;
}
}
- dlm_release_root_list(ls);
+ dlm_release_root_list(&root_list);
/*
* Purge directory-related requests that are saved in requestqueue.
@@ -346,8 +337,9 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
return 0;
+ fail_root_list:
+ dlm_release_root_list(&root_list);
fail:
- dlm_release_root_list(ls);
mutex_unlock(&ls->ls_recoverd_active);
return error;
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-31 14:21:28 +0300