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authorSunil Mushran <sunil.mushran@oracle.com>2009-02-26 15:00:43 -0800
committerMark Fasheh <mfasheh@suse.com>2009-04-03 11:39:21 -0700
commit2041d8fdcec7603401829f60810c1dbd5e96c043 (patch)
treeb11697962ccdec9556e66e6c261ecff33d1fb468 /fs/ocfs2/dlm/dlmmaster.c
parent67ae1f0604da3bcf3ed6dec59ac71d07e54a404c (diff)
ocfs2/dlm: Track number of mles
The lifetime of a mle is limited to the duration of the lockres mastery process. While typically this lifetime is fairly short, we have noticed the number of mles explode under certain circumstances. This patch tracks the number of each different types of mles and should help us determine how best to speed up the mastery process. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/dlm/dlmmaster.c')
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 604552ebb468..acfc9288d5cd 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -325,6 +325,9 @@ static void dlm_init_mle(struct dlm_master_list_entry *mle,
mle->u.mlename.hash = dlm_lockid_hash(name, namelen);
}
+ atomic_inc(&dlm->mle_tot_count[mle->type]);
+ atomic_inc(&dlm->mle_cur_count[mle->type]);
+
/* copy off the node_map and register hb callbacks on our copy */
memcpy(mle->node_map, dlm->domain_map, sizeof(mle->node_map));
memcpy(mle->vote_map, dlm->domain_map, sizeof(mle->vote_map));
@@ -467,6 +470,8 @@ static void dlm_mle_release(struct kref *kref)
/* detach the mle from the domain node up/down events */
__dlm_mle_detach_hb_events(dlm, mle);
+ atomic_dec(&dlm->mle_cur_count[mle->type]);
+
/* NOTE: kfree under spinlock here.
* if this is bad, we can move this to a freelist. */
kmem_cache_free(dlm_mle_cache, mle);