A node can mount multiple ocfs2 volumes. And if thread names are same
for each volume/domain, it will bring inconvenience when analyzing
problems because we have to identify which volume/domain the messages
belong to.
Since thread name will be printed to messages, so add volume uuid or dlm
name to thread name can benefit problem analysis.
Signed-off-by: Joseph Qi <joseph...@huawei.com>
---
fs/ocfs2/dlm/dlmdomain.c | 4 +++-
fs/ocfs2/dlm/dlmrecovery.c | 2 +-
fs/ocfs2/dlm/dlmthread.c | 3 ++-
fs/ocfs2/dlmglue.c | 3 ++-
fs/ocfs2/journal.c | 4 ++--
5 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 7df88a6..cc794b5 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -1860,6 +1860,7 @@ static int dlm_join_domain(struct dlm_ctxt *dlm)
int status;
unsigned int backoff;
unsigned int total_backoff = 0;
+ char wq_name[O2NM_MAX_NAME_LEN];
BUG_ON(!dlm);
@@ -1889,7 +1890,8 @@ static int dlm_join_domain(struct dlm_ctxt *dlm)
goto bail;
}
- dlm->dlm_worker = create_singlethread_workqueue("dlm_wq");
+ snprintf(wq_name, O2NM_MAX_NAME_LEN, "dlm_wq-%s", dlm->name);
+ dlm->dlm_worker = create_singlethread_workqueue(wq_name);
if (!dlm->dlm_worker) {
status = -ENOMEM;
mlog_errno(status);
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index a43f9ef..8caf881 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -205,7 +205,7 @@ int dlm_launch_recovery_thread(struct dlm_ctxt *dlm)
mlog(0, "starting dlm recovery thread...\n");
dlm->dlm_reco_thread_task = kthread_run(dlm_recovery_thread, dlm,
- "dlm_reco_thread");
+ "dlm_reco-%s", dlm->name);
if (IS_ERR(dlm->dlm_reco_thread_task)) {
mlog_errno(PTR_ERR(dlm->dlm_reco_thread_task));
dlm->dlm_reco_thread_task = NULL;
diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index 69aac6f..a1b6c34 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/fs/ocfs2/dlm/dlmthread.c
@@ -483,7 +483,8 @@ int dlm_launch_thread(struct dlm_ctxt *dlm)
{
mlog(0, "Starting dlm_thread...\n");
- dlm->dlm_thread_task = kthread_run(dlm_thread, dlm, "dlm_thread");
+ dlm->dlm_thread_task = kthread_run(dlm_thread, dlm, "dlm-%s",
+ dlm->name);
if (IS_ERR(dlm->dlm_thread_task)) {
mlog_errno(PTR_ERR(dlm->dlm_thread_task));
dlm->dlm_thread_task = NULL;
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 23157e4..fd4f536 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -2998,7 +2998,8 @@ int ocfs2_dlm_init(struct ocfs2_super *osb)
}
/* launch downconvert thread */
- osb->dc_task = kthread_run(ocfs2_downconvert_thread, osb, "ocfs2dc");
+ osb->dc_task = kthread_run(ocfs2_downconvert_thread, osb, "ocfs2dc-%s",
+ osb->uuid_str);
if (IS_ERR(osb->dc_task)) {
status = PTR_ERR(osb->dc_task);
osb->dc_task = NULL;
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 627d88c..86b9a93 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -1074,7 +1074,7 @@ int ocfs2_journal_load(struct ocfs2_journal *journal, int
local, int replayed)
/* Launch the commit thread */
if (!local) {
osb->commit_task = kthread_run(ocfs2_commit_thread, osb,
- "ocfs2cmt");
+ "ocfs2cmt-%s", osb->uuid_str);
if (IS_ERR(osb->commit_task)) {
status = PTR_ERR(osb->commit_task);
osb->commit_task = NULL;
@@ -1491,7 +1491,7 @@ void ocfs2_recovery_thread(struct ocfs2_super *osb, int
node_num)
goto out;
osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb,
- "ocfs2rec");
+ "ocfs2rec-%s", osb->uuid_str);
if (IS_ERR(osb->recovery_thread_task)) {
mlog_errno((int)PTR_ERR(osb->recovery_thread_task));
osb->recovery_thread_task = NULL;
--
1.8.4.3
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