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| author | Sunil Mushran <sunil.mushran@oracle.com> | 2009-02-26 15:00:41 -0800 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2009-04-03 11:39:19 -0700 |
| commit | 2ed6c750d645d09b5948e46fada3ca1fda3157b5 (patch) | |
| tree | 47d2a6b7d3f6407312f9857abdaf114f14223286 /fs/ocfs2/dlm/dlmdebug.c | |
| parent | e2b66ddcce922529e058cf74d839c4c49c8379a1 (diff) | |
| download | talos-op-linux-2ed6c750d645d09b5948e46fada3ca1fda3157b5.tar.gz talos-op-linux-2ed6c750d645d09b5948e46fada3ca1fda3157b5.zip | |
ocfs2/dlm: Activate dlm->master_hash for master list entries
With this patch, the mles are stored in a hash and not a simple list.
This should improve the mle lookup time when the number of outstanding
masteries is large.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/dlm/dlmdebug.c')
| -rw-r--r-- | fs/ocfs2/dlm/dlmdebug.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c index c82feb7b00b9..336a98e82eba 100644 --- a/fs/ocfs2/dlm/dlmdebug.c +++ b/fs/ocfs2/dlm/dlmdebug.c @@ -501,18 +501,25 @@ static struct file_operations debug_purgelist_fops = { static int debug_mle_print(struct dlm_ctxt *dlm, struct debug_buffer *db) { struct dlm_master_list_entry *mle; - int out = 0; + struct hlist_head *bucket; + struct hlist_node *list; + int i, out = 0; unsigned long total = 0; out += snprintf(db->buf + out, db->len - out, "Dumping MLEs for Domain: %s\n", dlm->name); spin_lock(&dlm->master_lock); - list_for_each_entry(mle, &dlm->master_list, list) { - ++total; - if (db->len - out < 200) - continue; - out += dump_mle(mle, db->buf + out, db->len - out); + for (i = 0; i < DLM_HASH_BUCKETS; i++) { + bucket = dlm_master_hash(dlm, i); + hlist_for_each(list, bucket) { + mle = hlist_entry(list, struct dlm_master_list_entry, + master_hash_node); + ++total; + if (db->len - out < 200) + continue; + out += dump_mle(mle, db->buf + out, db->len - out); + } } spin_unlock(&dlm->master_lock); @@ -813,12 +820,11 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db) /* Lists: Dirty=Empty Purge=InUse PendingASTs=Empty ... */ out += snprintf(db->buf + out, db->len - out, "Lists: Dirty=%s Purge=%s PendingASTs=%s " - "PendingBASTs=%s Master=%s\n", + "PendingBASTs=%s\n", (list_empty(&dlm->dirty_list) ? "Empty" : "InUse"), (list_empty(&dlm->purge_list) ? "Empty" : "InUse"), (list_empty(&dlm->pending_asts) ? "Empty" : "InUse"), - (list_empty(&dlm->pending_basts) ? "Empty" : "InUse"), - (list_empty(&dlm->master_list) ? "Empty" : "InUse")); + (list_empty(&dlm->pending_basts) ? "Empty" : "InUse")); /* Purge Count: xxx Refs: xxx */ out += snprintf(db->buf + out, db->len - out, |
