ocfs2: add uuid to ocfs2 thread name for problem analysis

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.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Gang He <ghe@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 04d6303f39a7..13534f4fe5b5 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -1090,7 +1090,7 @@ 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;
@@ -1507,7 +1507,7 @@ 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;