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libceph: fix leak of osd structs during shutdown 

We want to remove all OSDs, not just those on the idle LRU.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2011-08-31 14:45:53 -07:00
parent 259a187ade
commit aca420bc51
1 changed files with 17 additions and 5 deletions
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22
net/ceph/osd_client.c
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@ -685,6 +685,18 @@ static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
put_osd(osd);
}
static void remove_all_osds(struct ceph_osd_client *osdc)
{
dout("__remove_old_osds %p\n", osdc);
mutex_lock(&osdc->request_mutex);
while (!RB_EMPTY_ROOT(&osdc->osds)) {
struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds),
struct ceph_osd, o_node);
__remove_osd(osdc, osd);
}
mutex_unlock(&osdc->request_mutex);
}
static void __move_osd_to_lru(struct ceph_osd_client *osdc,
struct ceph_osd *osd)
{
@ -701,14 +713,14 @@ static void __remove_osd_from_lru(struct ceph_osd *osd)
list_del_init(&osd->o_osd_lru);
}
static void remove_old_osds(struct ceph_osd_client *osdc, int remove_all)
static void remove_old_osds(struct ceph_osd_client *osdc)
{
struct ceph_osd *osd, *nosd;
dout("__remove_old_osds %p\n", osdc);
mutex_lock(&osdc->request_mutex);
list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) {
if (!remove_all && time_before(jiffies, osd->lru_ttl))
if (time_before(jiffies, osd->lru_ttl))
break;
__remove_osd(osdc, osd);
}
@ -751,6 +763,7 @@ static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new)
struct rb_node *parent = NULL;
struct ceph_osd *osd = NULL;
dout("__insert_osd %p osd%d\n", new, new->o_osd);
while (*p) {
parent = *p;
osd = rb_entry(parent, struct ceph_osd, o_node);
@ -1144,7 +1157,7 @@ static void handle_osds_timeout(struct work_struct *work)
dout("osds timeout\n");
down_read(&osdc->map_sem);
remove_old_osds(osdc, 0);
remove_old_osds(osdc);
up_read(&osdc->map_sem);
schedule_delayed_work(&osdc->osds_timeout_work,
@ -1862,8 +1875,7 @@ void ceph_osdc_stop(struct ceph_osd_client *osdc)
ceph_osdmap_destroy(osdc->osdmap);
osdc->osdmap = NULL;
}
remove_old_osds(osdc, 1);
WARN_ON(!RB_EMPTY_ROOT(&osdc->osds));
remove_all_osds(osdc);
mempool_destroy(osdc->req_mempool);
ceph_msgpool_destroy(&osdc->msgpool_op);
ceph_msgpool_destroy(&osdc->msgpool_op_reply);