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ocfs2/dlm: Improve lockres counts 

This patch replaces the lockres counts that tracked the number number of
locally and remotely mastered lockres' with a current and total count. The
total count is the number of lockres' that have been created since the dlm
domain was created.

The number of locally and remotely mastered counts can be computed using
the locking_state output.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Sunil Mushran 2009-02-26 15:00:44 -08:00 committed by Mark Fasheh
parent 2041d8fdce
commit 6800791ab7
4 changed files with 11 additions and 38 deletions
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5
fs/ocfs2/dlm/dlmcommon.h
View File

@ -159,9 +159,8 @@ struct dlm_ctxt
/* these give a really vague idea of the system load */
atomic_t mle_tot_count[DLM_MLE_NUM_TYPES];
atomic_t mle_cur_count[DLM_MLE_NUM_TYPES];
atomic_t local_resources;
atomic_t remote_resources;
atomic_t unknown_resources;
atomic_t res_tot_count;
atomic_t res_cur_count;
struct dlm_debug_ctxt *dlm_debug_ctxt;
struct dentry *dlm_debugfs_subroot;

12
fs/ocfs2/dlm/dlmdebug.c
View File

@ -763,12 +763,6 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db)
int out = 0;
struct dlm_reco_node_data *node;
char *state;
int lres, rres, ures, tres;
lres = atomic_read(&dlm->local_resources);
rres = atomic_read(&dlm->remote_resources);
ures = atomic_read(&dlm->unknown_resources);
tres = lres + rres + ures;
spin_lock(&dlm->spinlock);
@ -811,12 +805,6 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db)
db->buf + out, db->len - out);
out += snprintf(db->buf + out, db->len - out, "\n");
/* Mastered Resources Total: xxx Locally: xxx Remotely: ... */
out += snprintf(db->buf + out, db->len - out,
"Mastered Resources Total: %d Locally: %d "
"Remotely: %d Unknown: %d\n",
tres, lres, rres, ures);
/* Lists: Dirty=Empty Purge=InUse PendingASTs=Empty ... */
out += snprintf(db->buf + out, db->len - out,
"Lists: Dirty=%s Purge=%s PendingASTs=%s "

5
fs/ocfs2/dlm/dlmdomain.c
View File

@ -1604,10 +1604,9 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain,
dlm->reco.new_master = O2NM_INVALID_NODE_NUM;
dlm->reco.dead_node = O2NM_INVALID_NODE_NUM;
atomic_set(&dlm->local_resources, 0);
atomic_set(&dlm->remote_resources, 0);
atomic_set(&dlm->unknown_resources, 0);
atomic_set(&dlm->res_tot_count, 0);
atomic_set(&dlm->res_cur_count, 0);
for (i = 0; i < DLM_MLE_NUM_TYPES; ++i) {
atomic_set(&dlm->mle_tot_count[i], 0);
atomic_set(&dlm->mle_cur_count[i], 0);

27
fs/ocfs2/dlm/dlmmaster.c
View File

@ -517,15 +517,6 @@ static void dlm_set_lockres_owner(struct dlm_ctxt *dlm,
{
assert_spin_locked(&res->spinlock);
mlog_entry("%.*s, %u\n", res->lockname.len, res->lockname.name, owner);
if (owner == dlm->node_num)
atomic_inc(&dlm->local_resources);
else if (owner == DLM_LOCK_RES_OWNER_UNKNOWN)
atomic_inc(&dlm->unknown_resources);
else
atomic_inc(&dlm->remote_resources);
res->owner = owner;
}
@ -534,17 +525,8 @@ void dlm_change_lockres_owner(struct dlm_ctxt *dlm,
{
assert_spin_locked(&res->spinlock);
if (owner == res->owner)
return;
if (res->owner == dlm->node_num)
atomic_dec(&dlm->local_resources);
else if (res->owner == DLM_LOCK_RES_OWNER_UNKNOWN)
atomic_dec(&dlm->unknown_resources);
else
atomic_dec(&dlm->remote_resources);
dlm_set_lockres_owner(dlm, res, owner);
if (owner != res->owner)
dlm_set_lockres_owner(dlm, res, owner);
}
@ -573,6 +555,8 @@ static void dlm_lockres_release(struct kref *kref)
}
spin_unlock(&dlm->track_lock);
atomic_dec(&dlm->res_cur_count);
dlm_put(dlm);
if (!hlist_unhashed(&res->hash_node) ||
@ -653,6 +637,9 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm,
kref_init(&res->refs);
atomic_inc(&dlm->res_tot_count);
atomic_inc(&dlm->res_cur_count);
/* just for consistency */
spin_lock(&res->spinlock);
dlm_set_lockres_owner(dlm, res, DLM_LOCK_RES_OWNER_UNKNOWN);