diff options
Diffstat (limited to 'fs/ocfs2/dlm/dlmdomain.c')
| -rw-r--r-- | fs/ocfs2/dlm/dlmdomain.c | 70 |
1 files changed, 65 insertions, 5 deletions
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 0879d86113e3..63f8125824e8 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -33,6 +33,7 @@ #include <linux/spinlock.h> #include <linux/delay.h> #include <linux/err.h> +#include <linux/debugfs.h> #include "cluster/heartbeat.h" #include "cluster/nodemanager.h" @@ -40,8 +41,8 @@ #include "dlmapi.h" #include "dlmcommon.h" - #include "dlmdomain.h" +#include "dlmdebug.h" #include "dlmver.h" @@ -298,6 +299,8 @@ static int dlm_wait_on_domain_helper(const char *domain) static void dlm_free_ctxt_mem(struct dlm_ctxt *dlm) { + dlm_destroy_debugfs_subroot(dlm); + if (dlm->lockres_hash) dlm_free_pagevec((void **)dlm->lockres_hash, DLM_HASH_PAGES); @@ -395,6 +398,7 @@ static void dlm_destroy_dlm_worker(struct dlm_ctxt *dlm) static void dlm_complete_dlm_shutdown(struct dlm_ctxt *dlm) { dlm_unregister_domain_handlers(dlm); + dlm_debug_shutdown(dlm); dlm_complete_thread(dlm); dlm_complete_recovery_thread(dlm); dlm_destroy_dlm_worker(dlm); @@ -644,6 +648,7 @@ int dlm_shutting_down(struct dlm_ctxt *dlm) void dlm_unregister_domain(struct dlm_ctxt *dlm) { int leave = 0; + struct dlm_lock_resource *res; spin_lock(&dlm_domain_lock); BUG_ON(dlm->dlm_state != DLM_CTXT_JOINED); @@ -673,6 +678,15 @@ void dlm_unregister_domain(struct dlm_ctxt *dlm) msleep(500); mlog(0, "%s: more migration to do\n", dlm->name); } + + /* This list should be empty. If not, print remaining lockres */ + if (!list_empty(&dlm->tracking_list)) { + mlog(ML_ERROR, "Following lockres' are still on the " + "tracking list:\n"); + list_for_each_entry(res, &dlm->tracking_list, tracking) + dlm_print_one_lock_resource(res); + } + dlm_mark_domain_leaving(dlm); dlm_leave_domain(dlm); dlm_complete_dlm_shutdown(dlm); @@ -1405,6 +1419,12 @@ static int dlm_join_domain(struct dlm_ctxt *dlm) goto bail; } + status = dlm_debug_init(dlm); + if (status < 0) { + mlog_errno(status); + goto bail; + } + status = dlm_launch_thread(dlm); if (status < 0) { mlog_errno(status); @@ -1472,6 +1492,7 @@ bail: if (status) { dlm_unregister_domain_handlers(dlm); + dlm_debug_shutdown(dlm); dlm_complete_thread(dlm); dlm_complete_recovery_thread(dlm); dlm_destroy_dlm_worker(dlm); @@ -1484,6 +1505,7 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain, u32 key) { int i; + int ret; struct dlm_ctxt *dlm = NULL; dlm = kzalloc(sizeof(*dlm), GFP_KERNEL); @@ -1516,6 +1538,15 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain, dlm->key = key; dlm->node_num = o2nm_this_node(); + ret = dlm_create_debugfs_subroot(dlm); + if (ret < 0) { + dlm_free_pagevec((void **)dlm->lockres_hash, DLM_HASH_PAGES); + kfree(dlm->name); + kfree(dlm); + dlm = NULL; + goto leave; + } + spin_lock_init(&dlm->spinlock); spin_lock_init(&dlm->master_lock); spin_lock_init(&dlm->ast_lock); @@ -1526,6 +1557,7 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain, INIT_LIST_HEAD(&dlm->reco.node_data); INIT_LIST_HEAD(&dlm->purge_list); INIT_LIST_HEAD(&dlm->dlm_domain_handlers); + INIT_LIST_HEAD(&dlm->tracking_list); dlm->reco.state = 0; INIT_LIST_HEAD(&dlm->pending_asts); @@ -1816,21 +1848,49 @@ static int __init dlm_init(void) dlm_print_version(); status = dlm_init_mle_cache(); - if (status) - return -1; + if (status) { + mlog(ML_ERROR, "Could not create o2dlm_mle slabcache\n"); + goto error; + } + + status = dlm_init_master_caches(); + if (status) { + mlog(ML_ERROR, "Could not create o2dlm_lockres and " + "o2dlm_lockname slabcaches\n"); + goto error; + } + + status = dlm_init_lock_cache(); + if (status) { + mlog(ML_ERROR, "Count not create o2dlm_lock slabcache\n"); + goto error; + } status = dlm_register_net_handlers(); if (status) { - dlm_destroy_mle_cache(); - return -1; + mlog(ML_ERROR, "Unable to register network handlers\n"); + goto error; } + status = dlm_create_debugfs_root(); + if (status) + goto error; + return 0; +error: + dlm_unregister_net_handlers(); + dlm_destroy_lock_cache(); + dlm_destroy_master_caches(); + dlm_destroy_mle_cache(); + return -1; } static void __exit dlm_exit (void) { + dlm_destroy_debugfs_root(); dlm_unregister_net_handlers(); + dlm_destroy_lock_cache(); + dlm_destroy_master_caches(); dlm_destroy_mle_cache(); } |
