ceph: decode v5 of osdmap (pool names) [protocol change]
Teach the client to decode an updated format for the osdmap. The new format includes pool names, which will be useful shortly. Get this change in earlier rather than later. Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil
parent
0e0d5e0c4b
commit
2844a76a25
180
fs/ceph/osdmap.c
180
fs/ceph/osdmap.c
@ -312,71 +312,6 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
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return ERR_PTR(err);
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}
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/*
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* osd map
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*/
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void ceph_osdmap_destroy(struct ceph_osdmap *map)
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{
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dout("osdmap_destroy %p\n", map);
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if (map->crush)
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crush_destroy(map->crush);
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while (!RB_EMPTY_ROOT(&map->pg_temp)) {
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struct ceph_pg_mapping *pg =
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rb_entry(rb_first(&map->pg_temp),
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struct ceph_pg_mapping, node);
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rb_erase(&pg->node, &map->pg_temp);
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kfree(pg);
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}
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while (!RB_EMPTY_ROOT(&map->pg_pools)) {
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struct ceph_pg_pool_info *pi =
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rb_entry(rb_first(&map->pg_pools),
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struct ceph_pg_pool_info, node);
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rb_erase(&pi->node, &map->pg_pools);
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kfree(pi);
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}
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kfree(map->osd_state);
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kfree(map->osd_weight);
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kfree(map->osd_addr);
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kfree(map);
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}
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/*
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* adjust max osd value. reallocate arrays.
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*/
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static int osdmap_set_max_osd(struct ceph_osdmap *map, int max)
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{
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u8 *state;
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struct ceph_entity_addr *addr;
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u32 *weight;
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state = kcalloc(max, sizeof(*state), GFP_NOFS);
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addr = kcalloc(max, sizeof(*addr), GFP_NOFS);
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weight = kcalloc(max, sizeof(*weight), GFP_NOFS);
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if (state == NULL || addr == NULL || weight == NULL) {
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kfree(state);
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kfree(addr);
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kfree(weight);
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return -ENOMEM;
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}
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/* copy old? */
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if (map->osd_state) {
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memcpy(state, map->osd_state, map->max_osd*sizeof(*state));
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memcpy(addr, map->osd_addr, map->max_osd*sizeof(*addr));
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memcpy(weight, map->osd_weight, map->max_osd*sizeof(*weight));
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kfree(map->osd_state);
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kfree(map->osd_addr);
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kfree(map->osd_weight);
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}
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map->osd_state = state;
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map->osd_weight = weight;
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map->osd_addr = addr;
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map->max_osd = max;
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return 0;
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}
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/*
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* rbtree of pg_mapping for handling pg_temp (explicit mapping of pgid
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* to a set of osds)
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@ -480,6 +415,13 @@ static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, int id)
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return NULL;
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}
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static void __remove_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *pi)
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{
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rb_erase(&pi->node, root);
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kfree(pi->name);
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kfree(pi);
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}
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void __decode_pool(void **p, struct ceph_pg_pool_info *pi)
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{
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ceph_decode_copy(p, &pi->v, sizeof(pi->v));
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@ -488,6 +430,98 @@ void __decode_pool(void **p, struct ceph_pg_pool_info *pi)
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*p += le32_to_cpu(pi->v.num_removed_snap_intervals) * sizeof(u64) * 2;
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}
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static int __decode_pool_names(void **p, void *end, struct ceph_osdmap *map)
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{
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struct ceph_pg_pool_info *pi;
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u32 num, len, pool;
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ceph_decode_32_safe(p, end, num, bad);
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dout(" %d pool names\n", num);
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while (num--) {
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ceph_decode_32_safe(p, end, pool, bad);
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ceph_decode_32_safe(p, end, len, bad);
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dout(" pool %d len %d\n", pool, len);
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pi = __lookup_pg_pool(&map->pg_pools, pool);
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if (pi) {
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kfree(pi->name);
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pi->name = kmalloc(len + 1, GFP_NOFS);
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if (pi->name) {
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memcpy(pi->name, *p, len);
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pi->name[len] = '\0';
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dout(" name is %s\n", pi->name);
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}
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}
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*p += len;
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}
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return 0;
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bad:
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return -EINVAL;
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}
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/*
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* osd map
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*/
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void ceph_osdmap_destroy(struct ceph_osdmap *map)
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{
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dout("osdmap_destroy %p\n", map);
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if (map->crush)
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crush_destroy(map->crush);
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while (!RB_EMPTY_ROOT(&map->pg_temp)) {
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struct ceph_pg_mapping *pg =
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rb_entry(rb_first(&map->pg_temp),
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struct ceph_pg_mapping, node);
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rb_erase(&pg->node, &map->pg_temp);
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kfree(pg);
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}
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while (!RB_EMPTY_ROOT(&map->pg_pools)) {
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struct ceph_pg_pool_info *pi =
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rb_entry(rb_first(&map->pg_pools),
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struct ceph_pg_pool_info, node);
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__remove_pg_pool(&map->pg_pools, pi);
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}
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kfree(map->osd_state);
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kfree(map->osd_weight);
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kfree(map->osd_addr);
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kfree(map);
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}
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/*
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* adjust max osd value. reallocate arrays.
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*/
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static int osdmap_set_max_osd(struct ceph_osdmap *map, int max)
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{
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u8 *state;
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struct ceph_entity_addr *addr;
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u32 *weight;
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state = kcalloc(max, sizeof(*state), GFP_NOFS);
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addr = kcalloc(max, sizeof(*addr), GFP_NOFS);
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weight = kcalloc(max, sizeof(*weight), GFP_NOFS);
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if (state == NULL || addr == NULL || weight == NULL) {
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kfree(state);
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kfree(addr);
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kfree(weight);
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return -ENOMEM;
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}
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/* copy old? */
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if (map->osd_state) {
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memcpy(state, map->osd_state, map->max_osd*sizeof(*state));
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memcpy(addr, map->osd_addr, map->max_osd*sizeof(*addr));
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memcpy(weight, map->osd_weight, map->max_osd*sizeof(*weight));
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kfree(map->osd_state);
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kfree(map->osd_addr);
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kfree(map->osd_weight);
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}
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map->osd_state = state;
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map->osd_weight = weight;
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map->osd_addr = addr;
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map->max_osd = max;
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return 0;
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}
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/*
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* decode a full map.
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*/
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@ -524,7 +558,7 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
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ceph_decode_32_safe(p, end, max, bad);
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while (max--) {
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ceph_decode_need(p, end, 4 + 1 + sizeof(pi->v), bad);
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pi = kmalloc(sizeof(*pi), GFP_NOFS);
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pi = kzalloc(sizeof(*pi), GFP_NOFS);
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if (!pi)
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goto bad;
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pi->id = ceph_decode_32(p);
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@ -537,6 +571,10 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
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__decode_pool(p, pi);
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__insert_pg_pool(&map->pg_pools, pi);
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}
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if (version >= 5 && __decode_pool_names(p, end, map) < 0)
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goto bad;
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ceph_decode_32_safe(p, end, map->pool_max, bad);
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ceph_decode_32_safe(p, end, map->flags, bad);
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@ -710,7 +748,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
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}
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pi = __lookup_pg_pool(&map->pg_pools, pool);
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if (!pi) {
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pi = kmalloc(sizeof(*pi), GFP_NOFS);
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pi = kzalloc(sizeof(*pi), GFP_NOFS);
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if (!pi) {
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err = -ENOMEM;
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goto bad;
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@ -720,6 +758,8 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
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}
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__decode_pool(p, pi);
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}
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if (version >= 5 && __decode_pool_names(p, end, map) < 0)
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goto bad;
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/* old_pool */
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ceph_decode_32_safe(p, end, len, bad);
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@ -728,10 +768,8 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
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ceph_decode_32_safe(p, end, pool, bad);
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pi = __lookup_pg_pool(&map->pg_pools, pool);
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if (pi) {
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rb_erase(&pi->node, &map->pg_pools);
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kfree(pi);
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}
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if (pi)
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__remove_pg_pool(&map->pg_pools, pi);
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}
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/* new_up */
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@ -23,6 +23,7 @@ struct ceph_pg_pool_info {
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int id;
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struct ceph_pg_pool v;
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int pg_num_mask, pgp_num_mask, lpg_num_mask, lpgp_num_mask;
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char *name;
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};
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struct ceph_pg_mapping {
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@ -11,8 +11,10 @@
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/*
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* osdmap encoding versions
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*/
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#define CEPH_OSDMAP_INC_VERSION 4
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#define CEPH_OSDMAP_VERSION 4
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#define CEPH_OSDMAP_INC_VERSION 5
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#define CEPH_OSDMAP_INC_VERSION_EXT 5
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#define CEPH_OSDMAP_VERSION 5
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#define CEPH_OSDMAP_VERSION_EXT 5
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/*
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* fs id
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