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libceph: allocate dummy osdmap in ceph_osdc_init()

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This leads to a simpler osdmap handling code, particularly when dealing
with pi->was_full, which is introduced in a later commit.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov
2016-04-28 16:07:25 +02:00
parent fbca963532
commit e5253a7bde
3 changed files with 30 additions and 16 deletions
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23
net/ceph/osdmap.c
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@@ -707,6 +707,23 @@ bad:
/*
* osd map
*/
struct ceph_osdmap *ceph_osdmap_alloc(void)
{
struct ceph_osdmap *map;
map = kzalloc(sizeof(*map), GFP_NOIO);
if (!map)
return NULL;
map->pg_pools = RB_ROOT;
map->pool_max = -1;
map->pg_temp = RB_ROOT;
map->primary_temp = RB_ROOT;
mutex_init(&map->crush_scratch_mutex);
return map;
}
void ceph_osdmap_destroy(struct ceph_osdmap *map)
{
dout("osdmap_destroy %p\n", map);
@@ -1230,14 +1247,10 @@ struct ceph_osdmap *ceph_osdmap_decode(void **p, void *end)
struct ceph_osdmap *map;
int ret;
map = kzalloc(sizeof(*map), GFP_NOFS);
map = ceph_osdmap_alloc();
if (!map)
return ERR_PTR(-ENOMEM);
map->pg_temp = RB_ROOT;
map->primary_temp = RB_ROOT;
mutex_init(&map->crush_scratch_mutex);
ret = osdmap_decode(p, end, map);
if (ret) {
ceph_osdmap_destroy(map);