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ceph: use rbtree for mon statfs requests

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An rbtree is lighter weight, particularly given we will generally have
very few in-flight statfs requests.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil
2010-02-15 14:47:28 -08:00
parent a105f00cf1
commit 85ff03f6bf
3 changed files with 54 additions and 32 deletions
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14
fs/ceph/debugfs.c
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@@ -112,9 +112,8 @@ static int monc_show(struct seq_file *s, void *p)
{
struct ceph_client *client = s->private;
struct ceph_mon_statfs_request *req;
u64 nexttid = 0;
int got;
struct ceph_mon_client *monc = &client->monc;
struct rb_node *rp;
mutex_lock(&monc->mutex);
@@ -125,17 +124,12 @@ static int monc_show(struct seq_file *s, void *p)
if (monc->want_next_osdmap)
seq_printf(s, "want next osdmap\n");
while (nexttid < monc->last_tid) {
got = radix_tree_gang_lookup(&monc->statfs_request_tree,
(void **)&req, nexttid, 1);
if (got == 0)
break;
nexttid = req->tid + 1;
for (rp = rb_first(&monc->statfs_request_tree); rp; rp = rb_next(rp)) {
req = rb_entry(rp, struct ceph_mon_statfs_request, node);
seq_printf(s, "%lld statfs\n", req->tid);
}
mutex_unlock(&monc->mutex);
mutex_unlock(&monc->mutex);
return 0;
}