From 6800791ab773453bdec337efb3f0cec6557f3bb3 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Thu, 26 Feb 2009 15:00:44 -0800 Subject: 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 Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmcommon.h | 5 ++--- fs/ocfs2/dlm/dlmdebug.c | 12 ------------ fs/ocfs2/dlm/dlmdomain.c | 5 ++--- fs/ocfs2/dlm/dlmmaster.c | 27 +++++++-------------------- 4 files changed, 11 insertions(+), 38 deletions(-) diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index 67b3447a292..e5026ce862a 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -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; diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c index 336a98e82eb..d7decaa687e 100644 --- a/fs/ocfs2/dlm/dlmdebug.c +++ b/fs/ocfs2/dlm/dlmdebug.c @@ -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 " diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 0479bdf91c2..4d9e6b288dd 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -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); diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index acfc9288d5c..d70cdd51de0 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -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); -- cgit v1.2.3