libceph: osd_state is 32 bits wide in luminous

[mirror_ubuntu-artful-kernel.git] / net / ceph / osdmap.c

diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index f630d10722997d6d76292c21286040e9f0c0bcca..864789c5974e072698841bf6207e9f044e2b8a78 100644 (file)
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -11,7 +11,7 @@
 #include <linux/crush/hash.h>
 #include <linux/crush/mapper.h>
 
-char *ceph_osdmap_state_str(char *str, int len, int state)
+char *ceph_osdmap_state_str(char *str, int len, u32 state)
 {
        if (!len)
                return str;
@@ -984,7 +984,7 @@ void ceph_osdmap_destroy(struct ceph_osdmap *map)
  */
 static int osdmap_set_max_osd(struct ceph_osdmap *map, int max)
 {
-       u8 *state;
+       u32 *state;
        u32 *weight;
        struct ceph_entity_addr *addr;
        int i;
@@ -1484,13 +1484,21 @@ static int osdmap_decode(void **p, void *end, struct ceph_osdmap *map)
 
        /* osd_state, osd_weight, osd_addrs->client_addr */
        ceph_decode_need(p, end, 3*sizeof(u32) +
-                        map->max_osd*(1 + sizeof(*map->osd_weight) +
+                        map->max_osd*((struct_v >= 5 ? sizeof(u32) :
+                                                       sizeof(u8)) +
+                                      sizeof(*map->osd_weight) +
                                       sizeof(*map->osd_addr)), e_inval);
 
        if (ceph_decode_32(p) != map->max_osd)
                goto e_inval;
 
-       ceph_decode_copy(p, map->osd_state, map->max_osd);
+       if (struct_v >= 5) {
+               for (i = 0; i < map->max_osd; i++)
+                       map->osd_state[i] = ceph_decode_32(p);
+       } else {
+               for (i = 0; i < map->max_osd; i++)
+                       map->osd_state[i] = ceph_decode_8(p);
+       }
 
        if (ceph_decode_32(p) != map->max_osd)
                goto e_inval;
@@ -1598,7 +1606,7 @@ struct ceph_osdmap *ceph_osdmap_decode(void **p, void *end)
  *     new_up_client: { osd=6, addr=... } # set osd_state and addr
  *     new_state: { osd=6, xorstate=EXISTS } # clear osd_state
  */
-static int decode_new_up_state_weight(void **p, void *end,
+static int decode_new_up_state_weight(void **p, void *end, u8 struct_v,
                                      struct ceph_osdmap *map)
 {
        void *new_up_client;
@@ -1614,7 +1622,7 @@ static int decode_new_up_state_weight(void **p, void *end,
 
        new_state = *p;
        ceph_decode_32_safe(p, end, len, e_inval);
-       len *= sizeof(u32) + sizeof(u8);
+       len *= sizeof(u32) + (struct_v >= 5 ? sizeof(u32) : sizeof(u8));
        ceph_decode_need(p, end, len, e_inval);
        *p += len;
 
@@ -1650,11 +1658,14 @@ static int decode_new_up_state_weight(void **p, void *end,
        len = ceph_decode_32(p);
        while (len--) {
                s32 osd;
-               u8 xorstate;
+               u32 xorstate;
                int ret;
 
                osd = ceph_decode_32(p);
-               xorstate = ceph_decode_8(p);
+               if (struct_v >= 5)
+                       xorstate = ceph_decode_32(p);
+               else
+                       xorstate = ceph_decode_8(p);
                if (xorstate == 0)
                        xorstate = CEPH_OSD_UP;
                BUG_ON(osd >= map->max_osd);
@@ -1788,7 +1799,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
        }
 
        /* new_up_client, new_state, new_weight */
-       err = decode_new_up_state_weight(p, end, map);
+       err = decode_new_up_state_weight(p, end, struct_v, map);
        if (err)
                goto bad;