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authorDavid Teigland <teigland@redhat.com>2009-01-07 16:50:41 -0600
committerDavid Teigland <teigland@redhat.com>2009-01-08 15:12:39 -0600
commitc7be761a8163d2f1ac0b606c21e4316b7abc5af7 (patch)
tree1687373b56379c1c310f43b1c05ac486c67dec48 /fs/dlm/recover.c
parent892c4467e335e9050c95e0d8409c136c4dadaca2 (diff)
dlm: change rsbtbl rwlock to spinlock
The rwlock is almost always used in write mode, so there's no reason to not use a spinlock instead. Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/recover.c')
-rw-r--r--fs/dlm/recover.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index 80aba5bdd4a..eda43f36261 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -726,7 +726,7 @@ int dlm_create_root_list(struct dlm_ls *ls)
}
for (i = 0; i < ls->ls_rsbtbl_size; i++) {
- read_lock(&ls->ls_rsbtbl[i].lock);
+ spin_lock(&ls->ls_rsbtbl[i].lock);
list_for_each_entry(r, &ls->ls_rsbtbl[i].list, res_hashchain) {
list_add(&r->res_root_list, &ls->ls_root_list);
dlm_hold_rsb(r);
@@ -737,7 +737,7 @@ int dlm_create_root_list(struct dlm_ls *ls)
but no other recovery steps should do anything with them. */
if (dlm_no_directory(ls)) {
- read_unlock(&ls->ls_rsbtbl[i].lock);
+ spin_unlock(&ls->ls_rsbtbl[i].lock);
continue;
}
@@ -745,7 +745,7 @@ int dlm_create_root_list(struct dlm_ls *ls)
list_add(&r->res_root_list, &ls->ls_root_list);
dlm_hold_rsb(r);
}
- read_unlock(&ls->ls_rsbtbl[i].lock);
+ spin_unlock(&ls->ls_rsbtbl[i].lock);
}
out:
up_write(&ls->ls_root_sem);
@@ -775,7 +775,7 @@ void dlm_clear_toss_list(struct dlm_ls *ls)
int i;
for (i = 0; i < ls->ls_rsbtbl_size; i++) {
- write_lock(&ls->ls_rsbtbl[i].lock);
+ spin_lock(&ls->ls_rsbtbl[i].lock);
list_for_each_entry_safe(r, safe, &ls->ls_rsbtbl[i].toss,
res_hashchain) {
if (dlm_no_directory(ls) || !is_master(r)) {
@@ -783,7 +783,7 @@ void dlm_clear_toss_list(struct dlm_ls *ls)
dlm_free_rsb(r);
}
}
- write_unlock(&ls->ls_rsbtbl[i].lock);
+ spin_unlock(&ls->ls_rsbtbl[i].lock);
}
}