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[PATCH] ocfs2: use list_for_each_entry where benefical

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Christoph Hellwig
2007-05-17 16:03:13 +02:00
committed by Mark Fasheh
parent e6df3a663a
commit 800deef3f6
6 changed files with 47 additions and 105 deletions
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40
fs/ocfs2/dlm/dlmmaster.c
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@@ -192,25 +192,20 @@ static void dlm_print_one_mle(struct dlm_master_list_entry *mle)
static void dlm_dump_mles(struct dlm_ctxt *dlm)
{
struct dlm_master_list_entry *mle;
struct list_head *iter;
mlog(ML_NOTICE, "dumping all mles for domain %s:\n", dlm->name);
spin_lock(&dlm->master_lock);
list_for_each(iter, &dlm->master_list) {
mle = list_entry(iter, struct dlm_master_list_entry, list);
list_for_each_entry(mle, &dlm->master_list, list)
dlm_print_one_mle(mle);
}
spin_unlock(&dlm->master_lock);
}
int dlm_dump_all_mles(const char __user *data, unsigned int len)
{
struct list_head *iter;
struct dlm_ctxt *dlm;
spin_lock(&dlm_domain_lock);
list_for_each(iter, &dlm_domains) {
dlm = list_entry (iter, struct dlm_ctxt, list);
list_for_each_entry(dlm, &dlm_domains, list) {
mlog(ML_NOTICE, "found dlm: %p, name=%s\n", dlm, dlm->name);
dlm_dump_mles(dlm);
}
@@ -454,12 +449,10 @@ static int dlm_find_mle(struct dlm_ctxt *dlm,
char *name, unsigned int namelen)
{
struct dlm_master_list_entry *tmpmle;
struct list_head *iter;
assert_spin_locked(&dlm->master_lock);
list_for_each(iter, &dlm->master_list) {
tmpmle = list_entry(iter, struct dlm_master_list_entry, list);
list_for_each_entry(tmpmle, &dlm->master_list, list) {
if (!dlm_mle_equal(dlm, tmpmle, name, namelen))
continue;
dlm_get_mle(tmpmle);
@@ -472,13 +465,10 @@ static int dlm_find_mle(struct dlm_ctxt *dlm,
void dlm_hb_event_notify_attached(struct dlm_ctxt *dlm, int idx, int node_up)
{
struct dlm_master_list_entry *mle;
struct list_head *iter;
assert_spin_locked(&dlm->spinlock);
list_for_each(iter, &dlm->mle_hb_events) {
mle = list_entry(iter, struct dlm_master_list_entry,
hb_events);
list_for_each_entry(mle, &dlm->mle_hb_events, hb_events) {
if (node_up)
dlm_mle_node_up(dlm, mle, NULL, idx);
else
@@ -2434,7 +2424,7 @@ static int dlm_is_lockres_migrateable(struct dlm_ctxt *dlm,
int ret;
int i;
int count = 0;
struct list_head *queue, *iter;
struct list_head *queue;
struct dlm_lock *lock;
assert_spin_locked(&res->spinlock);
@@ -2453,8 +2443,7 @@ static int dlm_is_lockres_migrateable(struct dlm_ctxt *dlm,
ret = 0;
queue = &res->granted;
for (i = 0; i < 3; i++) {
list_for_each(iter, queue) {
lock = list_entry(iter, struct dlm_lock, list);
list_for_each_entry(lock, queue, list) {
++count;
if (lock->ml.node == dlm->node_num) {
mlog(0, "found a lock owned by this node still "
@@ -2923,18 +2912,16 @@ again:
static void dlm_remove_nonlocal_locks(struct dlm_ctxt *dlm,
struct dlm_lock_resource *res)
{
struct list_head *iter, *iter2;
struct list_head *queue = &res->granted;
int i, bit;
struct dlm_lock *lock;
struct dlm_lock *lock, *next;
assert_spin_locked(&res->spinlock);
BUG_ON(res->owner == dlm->node_num);
for (i=0; i<3; i++) {
list_for_each_safe(iter, iter2, queue) {
lock = list_entry (iter, struct dlm_lock, list);
list_for_each_entry_safe(lock, next, queue, list) {
if (lock->ml.node != dlm->node_num) {
mlog(0, "putting lock for node %u\n",
lock->ml.node);
@@ -2976,7 +2963,6 @@ static u8 dlm_pick_migration_target(struct dlm_ctxt *dlm,
{
int i;
struct list_head *queue = &res->granted;
struct list_head *iter;
struct dlm_lock *lock;
int nodenum;
@@ -2984,10 +2970,9 @@ static u8 dlm_pick_migration_target(struct dlm_ctxt *dlm,
spin_lock(&res->spinlock);
for (i=0; i<3; i++) {
list_for_each(iter, queue) {
list_for_each_entry(lock, queue, list) {
/* up to the caller to make sure this node
* is alive */
lock = list_entry (iter, struct dlm_lock, list);
if (lock->ml.node != dlm->node_num) {
spin_unlock(&res->spinlock);
return lock->ml.node;
@@ -3234,8 +3219,7 @@ static int dlm_add_migration_mle(struct dlm_ctxt *dlm,
void dlm_clean_master_list(struct dlm_ctxt *dlm, u8 dead_node)
{
struct list_head *iter, *iter2;
struct dlm_master_list_entry *mle;
struct dlm_master_list_entry *mle, *next;
struct dlm_lock_resource *res;
unsigned int hash;
@@ -3245,9 +3229,7 @@ top:
/* clean the master list */
spin_lock(&dlm->master_lock);
list_for_each_safe(iter, iter2, &dlm->master_list) {
mle = list_entry(iter, struct dlm_master_list_entry, list);
list_for_each_entry_safe(mle, next, &dlm->master_list, list) {
BUG_ON(mle->type != DLM_MLE_BLOCK &&
mle->type != DLM_MLE_MASTER &&
mle->type != DLM_MLE_MIGRATION);