13d14c5d2SYehuda Sadeh 23d14c5d2SYehuda Sadeh #include <linux/ceph/ceph_debug.h> 33d14c5d2SYehuda Sadeh 43d14c5d2SYehuda Sadeh #include <linux/module.h> 53d14c5d2SYehuda Sadeh #include <linux/slab.h> 63d14c5d2SYehuda Sadeh #include <asm/div64.h> 73d14c5d2SYehuda Sadeh 83d14c5d2SYehuda Sadeh #include <linux/ceph/libceph.h> 93d14c5d2SYehuda Sadeh #include <linux/ceph/osdmap.h> 103d14c5d2SYehuda Sadeh #include <linux/ceph/decode.h> 113d14c5d2SYehuda Sadeh #include <linux/crush/hash.h> 123d14c5d2SYehuda Sadeh #include <linux/crush/mapper.h> 133d14c5d2SYehuda Sadeh 143d14c5d2SYehuda Sadeh char *ceph_osdmap_state_str(char *str, int len, int state) 153d14c5d2SYehuda Sadeh { 163d14c5d2SYehuda Sadeh if (!len) 171ec3911dSCong Ding return str; 183d14c5d2SYehuda Sadeh 191ec3911dSCong Ding if ((state & CEPH_OSD_EXISTS) && (state & CEPH_OSD_UP)) 201ec3911dSCong Ding snprintf(str, len, "exists, up"); 211ec3911dSCong Ding else if (state & CEPH_OSD_EXISTS) 223d14c5d2SYehuda Sadeh snprintf(str, len, "exists"); 231ec3911dSCong Ding else if (state & CEPH_OSD_UP) 241ec3911dSCong Ding snprintf(str, len, "up"); 251ec3911dSCong Ding else 263d14c5d2SYehuda Sadeh snprintf(str, len, "doesn't exist"); 271ec3911dSCong Ding 283d14c5d2SYehuda Sadeh return str; 293d14c5d2SYehuda Sadeh } 303d14c5d2SYehuda Sadeh 313d14c5d2SYehuda Sadeh /* maps */ 323d14c5d2SYehuda Sadeh 3395c96174SEric Dumazet static int calc_bits_of(unsigned int t) 343d14c5d2SYehuda Sadeh { 353d14c5d2SYehuda Sadeh int b = 0; 363d14c5d2SYehuda Sadeh while (t) { 373d14c5d2SYehuda Sadeh t = t >> 1; 383d14c5d2SYehuda Sadeh b++; 393d14c5d2SYehuda Sadeh } 403d14c5d2SYehuda Sadeh return b; 413d14c5d2SYehuda Sadeh } 423d14c5d2SYehuda Sadeh 433d14c5d2SYehuda Sadeh /* 443d14c5d2SYehuda Sadeh * the foo_mask is the smallest value 2^n-1 that is >= foo. 453d14c5d2SYehuda Sadeh */ 463d14c5d2SYehuda Sadeh static void calc_pg_masks(struct ceph_pg_pool_info *pi) 473d14c5d2SYehuda Sadeh { 484f6a7e5eSSage Weil pi->pg_num_mask = (1 << calc_bits_of(pi->pg_num-1)) - 1; 494f6a7e5eSSage Weil pi->pgp_num_mask = (1 << calc_bits_of(pi->pgp_num-1)) - 1; 503d14c5d2SYehuda Sadeh } 513d14c5d2SYehuda Sadeh 523d14c5d2SYehuda Sadeh /* 533d14c5d2SYehuda Sadeh * decode crush map 543d14c5d2SYehuda Sadeh */ 553d14c5d2SYehuda Sadeh static int crush_decode_uniform_bucket(void **p, void *end, 563d14c5d2SYehuda Sadeh struct crush_bucket_uniform *b) 573d14c5d2SYehuda Sadeh { 583d14c5d2SYehuda Sadeh dout("crush_decode_uniform_bucket %p to %p\n", *p, end); 593d14c5d2SYehuda Sadeh ceph_decode_need(p, end, (1+b->h.size) * sizeof(u32), bad); 603d14c5d2SYehuda Sadeh b->item_weight = ceph_decode_32(p); 613d14c5d2SYehuda Sadeh return 0; 623d14c5d2SYehuda Sadeh bad: 633d14c5d2SYehuda Sadeh return -EINVAL; 643d14c5d2SYehuda Sadeh } 653d14c5d2SYehuda Sadeh 663d14c5d2SYehuda Sadeh static int crush_decode_list_bucket(void **p, void *end, 673d14c5d2SYehuda Sadeh struct crush_bucket_list *b) 683d14c5d2SYehuda Sadeh { 693d14c5d2SYehuda Sadeh int j; 703d14c5d2SYehuda Sadeh dout("crush_decode_list_bucket %p to %p\n", *p, end); 713d14c5d2SYehuda Sadeh b->item_weights = kcalloc(b->h.size, sizeof(u32), GFP_NOFS); 723d14c5d2SYehuda Sadeh if (b->item_weights == NULL) 733d14c5d2SYehuda Sadeh return -ENOMEM; 743d14c5d2SYehuda Sadeh b->sum_weights = kcalloc(b->h.size, sizeof(u32), GFP_NOFS); 753d14c5d2SYehuda Sadeh if (b->sum_weights == NULL) 763d14c5d2SYehuda Sadeh return -ENOMEM; 773d14c5d2SYehuda Sadeh ceph_decode_need(p, end, 2 * b->h.size * sizeof(u32), bad); 783d14c5d2SYehuda Sadeh for (j = 0; j < b->h.size; j++) { 793d14c5d2SYehuda Sadeh b->item_weights[j] = ceph_decode_32(p); 803d14c5d2SYehuda Sadeh b->sum_weights[j] = ceph_decode_32(p); 813d14c5d2SYehuda Sadeh } 823d14c5d2SYehuda Sadeh return 0; 833d14c5d2SYehuda Sadeh bad: 843d14c5d2SYehuda Sadeh return -EINVAL; 853d14c5d2SYehuda Sadeh } 863d14c5d2SYehuda Sadeh 873d14c5d2SYehuda Sadeh static int crush_decode_tree_bucket(void **p, void *end, 883d14c5d2SYehuda Sadeh struct crush_bucket_tree *b) 893d14c5d2SYehuda Sadeh { 903d14c5d2SYehuda Sadeh int j; 913d14c5d2SYehuda Sadeh dout("crush_decode_tree_bucket %p to %p\n", *p, end); 9282cd003aSIlya Dryomov ceph_decode_8_safe(p, end, b->num_nodes, bad); 933d14c5d2SYehuda Sadeh b->node_weights = kcalloc(b->num_nodes, sizeof(u32), GFP_NOFS); 943d14c5d2SYehuda Sadeh if (b->node_weights == NULL) 953d14c5d2SYehuda Sadeh return -ENOMEM; 963d14c5d2SYehuda Sadeh ceph_decode_need(p, end, b->num_nodes * sizeof(u32), bad); 973d14c5d2SYehuda Sadeh for (j = 0; j < b->num_nodes; j++) 983d14c5d2SYehuda Sadeh b->node_weights[j] = ceph_decode_32(p); 993d14c5d2SYehuda Sadeh return 0; 1003d14c5d2SYehuda Sadeh bad: 1013d14c5d2SYehuda Sadeh return -EINVAL; 1023d14c5d2SYehuda Sadeh } 1033d14c5d2SYehuda Sadeh 1043d14c5d2SYehuda Sadeh static int crush_decode_straw_bucket(void **p, void *end, 1053d14c5d2SYehuda Sadeh struct crush_bucket_straw *b) 1063d14c5d2SYehuda Sadeh { 1073d14c5d2SYehuda Sadeh int j; 1083d14c5d2SYehuda Sadeh dout("crush_decode_straw_bucket %p to %p\n", *p, end); 1093d14c5d2SYehuda Sadeh b->item_weights = kcalloc(b->h.size, sizeof(u32), GFP_NOFS); 1103d14c5d2SYehuda Sadeh if (b->item_weights == NULL) 1113d14c5d2SYehuda Sadeh return -ENOMEM; 1123d14c5d2SYehuda Sadeh b->straws = kcalloc(b->h.size, sizeof(u32), GFP_NOFS); 1133d14c5d2SYehuda Sadeh if (b->straws == NULL) 1143d14c5d2SYehuda Sadeh return -ENOMEM; 1153d14c5d2SYehuda Sadeh ceph_decode_need(p, end, 2 * b->h.size * sizeof(u32), bad); 1163d14c5d2SYehuda Sadeh for (j = 0; j < b->h.size; j++) { 1173d14c5d2SYehuda Sadeh b->item_weights[j] = ceph_decode_32(p); 1183d14c5d2SYehuda Sadeh b->straws[j] = ceph_decode_32(p); 1193d14c5d2SYehuda Sadeh } 1203d14c5d2SYehuda Sadeh return 0; 1213d14c5d2SYehuda Sadeh bad: 1223d14c5d2SYehuda Sadeh return -EINVAL; 1233d14c5d2SYehuda Sadeh } 1243d14c5d2SYehuda Sadeh 125958a2765SIlya Dryomov static int crush_decode_straw2_bucket(void **p, void *end, 126958a2765SIlya Dryomov struct crush_bucket_straw2 *b) 127958a2765SIlya Dryomov { 128958a2765SIlya Dryomov int j; 129958a2765SIlya Dryomov dout("crush_decode_straw2_bucket %p to %p\n", *p, end); 130958a2765SIlya Dryomov b->item_weights = kcalloc(b->h.size, sizeof(u32), GFP_NOFS); 131958a2765SIlya Dryomov if (b->item_weights == NULL) 132958a2765SIlya Dryomov return -ENOMEM; 133958a2765SIlya Dryomov ceph_decode_need(p, end, b->h.size * sizeof(u32), bad); 134958a2765SIlya Dryomov for (j = 0; j < b->h.size; j++) 135958a2765SIlya Dryomov b->item_weights[j] = ceph_decode_32(p); 136958a2765SIlya Dryomov return 0; 137958a2765SIlya Dryomov bad: 138958a2765SIlya Dryomov return -EINVAL; 139958a2765SIlya Dryomov } 140958a2765SIlya Dryomov 141546f04efSSage Weil static int skip_name_map(void **p, void *end) 142546f04efSSage Weil { 143546f04efSSage Weil int len; 144546f04efSSage Weil ceph_decode_32_safe(p, end, len ,bad); 145546f04efSSage Weil while (len--) { 146546f04efSSage Weil int strlen; 147546f04efSSage Weil *p += sizeof(u32); 148546f04efSSage Weil ceph_decode_32_safe(p, end, strlen, bad); 149546f04efSSage Weil *p += strlen; 150546f04efSSage Weil } 151546f04efSSage Weil return 0; 152546f04efSSage Weil bad: 153546f04efSSage Weil return -EINVAL; 154546f04efSSage Weil } 155546f04efSSage Weil 15666a0e2d5SIlya Dryomov static void crush_finalize(struct crush_map *c) 15766a0e2d5SIlya Dryomov { 15866a0e2d5SIlya Dryomov __s32 b; 15966a0e2d5SIlya Dryomov 16066a0e2d5SIlya Dryomov /* Space for the array of pointers to per-bucket workspace */ 16166a0e2d5SIlya Dryomov c->working_size = sizeof(struct crush_work) + 16266a0e2d5SIlya Dryomov c->max_buckets * sizeof(struct crush_work_bucket *); 16366a0e2d5SIlya Dryomov 16466a0e2d5SIlya Dryomov for (b = 0; b < c->max_buckets; b++) { 16566a0e2d5SIlya Dryomov if (!c->buckets[b]) 16666a0e2d5SIlya Dryomov continue; 16766a0e2d5SIlya Dryomov 16866a0e2d5SIlya Dryomov switch (c->buckets[b]->alg) { 16966a0e2d5SIlya Dryomov default: 17066a0e2d5SIlya Dryomov /* 17166a0e2d5SIlya Dryomov * The base case, permutation variables and 17266a0e2d5SIlya Dryomov * the pointer to the permutation array. 17366a0e2d5SIlya Dryomov */ 17466a0e2d5SIlya Dryomov c->working_size += sizeof(struct crush_work_bucket); 17566a0e2d5SIlya Dryomov break; 17666a0e2d5SIlya Dryomov } 17766a0e2d5SIlya Dryomov /* Every bucket has a permutation array. */ 17866a0e2d5SIlya Dryomov c->working_size += c->buckets[b]->size * sizeof(__u32); 17966a0e2d5SIlya Dryomov } 18066a0e2d5SIlya Dryomov } 18166a0e2d5SIlya Dryomov 1823d14c5d2SYehuda Sadeh static struct crush_map *crush_decode(void *pbyval, void *end) 1833d14c5d2SYehuda Sadeh { 1843d14c5d2SYehuda Sadeh struct crush_map *c; 1853d14c5d2SYehuda Sadeh int err = -EINVAL; 1863d14c5d2SYehuda Sadeh int i, j; 1873d14c5d2SYehuda Sadeh void **p = &pbyval; 1883d14c5d2SYehuda Sadeh void *start = pbyval; 1893d14c5d2SYehuda Sadeh u32 magic; 190546f04efSSage Weil u32 num_name_maps; 1913d14c5d2SYehuda Sadeh 1923d14c5d2SYehuda Sadeh dout("crush_decode %p to %p len %d\n", *p, end, (int)(end - *p)); 1933d14c5d2SYehuda Sadeh 1943d14c5d2SYehuda Sadeh c = kzalloc(sizeof(*c), GFP_NOFS); 1953d14c5d2SYehuda Sadeh if (c == NULL) 1963d14c5d2SYehuda Sadeh return ERR_PTR(-ENOMEM); 1973d14c5d2SYehuda Sadeh 198546f04efSSage Weil /* set tunables to default values */ 199546f04efSSage Weil c->choose_local_tries = 2; 200546f04efSSage Weil c->choose_local_fallback_tries = 5; 201546f04efSSage Weil c->choose_total_tries = 19; 2021604f488SJim Schutt c->chooseleaf_descend_once = 0; 203546f04efSSage Weil 2043d14c5d2SYehuda Sadeh ceph_decode_need(p, end, 4*sizeof(u32), bad); 2053d14c5d2SYehuda Sadeh magic = ceph_decode_32(p); 2063d14c5d2SYehuda Sadeh if (magic != CRUSH_MAGIC) { 2073d14c5d2SYehuda Sadeh pr_err("crush_decode magic %x != current %x\n", 20895c96174SEric Dumazet (unsigned int)magic, (unsigned int)CRUSH_MAGIC); 2093d14c5d2SYehuda Sadeh goto bad; 2103d14c5d2SYehuda Sadeh } 2113d14c5d2SYehuda Sadeh c->max_buckets = ceph_decode_32(p); 2123d14c5d2SYehuda Sadeh c->max_rules = ceph_decode_32(p); 2133d14c5d2SYehuda Sadeh c->max_devices = ceph_decode_32(p); 2143d14c5d2SYehuda Sadeh 2153d14c5d2SYehuda Sadeh c->buckets = kcalloc(c->max_buckets, sizeof(*c->buckets), GFP_NOFS); 2163d14c5d2SYehuda Sadeh if (c->buckets == NULL) 2173d14c5d2SYehuda Sadeh goto badmem; 2183d14c5d2SYehuda Sadeh c->rules = kcalloc(c->max_rules, sizeof(*c->rules), GFP_NOFS); 2193d14c5d2SYehuda Sadeh if (c->rules == NULL) 2203d14c5d2SYehuda Sadeh goto badmem; 2213d14c5d2SYehuda Sadeh 2223d14c5d2SYehuda Sadeh /* buckets */ 2233d14c5d2SYehuda Sadeh for (i = 0; i < c->max_buckets; i++) { 2243d14c5d2SYehuda Sadeh int size = 0; 2253d14c5d2SYehuda Sadeh u32 alg; 2263d14c5d2SYehuda Sadeh struct crush_bucket *b; 2273d14c5d2SYehuda Sadeh 2283d14c5d2SYehuda Sadeh ceph_decode_32_safe(p, end, alg, bad); 2293d14c5d2SYehuda Sadeh if (alg == 0) { 2303d14c5d2SYehuda Sadeh c->buckets[i] = NULL; 2313d14c5d2SYehuda Sadeh continue; 2323d14c5d2SYehuda Sadeh } 2333d14c5d2SYehuda Sadeh dout("crush_decode bucket %d off %x %p to %p\n", 2343d14c5d2SYehuda Sadeh i, (int)(*p-start), *p, end); 2353d14c5d2SYehuda Sadeh 2363d14c5d2SYehuda Sadeh switch (alg) { 2373d14c5d2SYehuda Sadeh case CRUSH_BUCKET_UNIFORM: 2383d14c5d2SYehuda Sadeh size = sizeof(struct crush_bucket_uniform); 2393d14c5d2SYehuda Sadeh break; 2403d14c5d2SYehuda Sadeh case CRUSH_BUCKET_LIST: 2413d14c5d2SYehuda Sadeh size = sizeof(struct crush_bucket_list); 2423d14c5d2SYehuda Sadeh break; 2433d14c5d2SYehuda Sadeh case CRUSH_BUCKET_TREE: 2443d14c5d2SYehuda Sadeh size = sizeof(struct crush_bucket_tree); 2453d14c5d2SYehuda Sadeh break; 2463d14c5d2SYehuda Sadeh case CRUSH_BUCKET_STRAW: 2473d14c5d2SYehuda Sadeh size = sizeof(struct crush_bucket_straw); 2483d14c5d2SYehuda Sadeh break; 249958a2765SIlya Dryomov case CRUSH_BUCKET_STRAW2: 250958a2765SIlya Dryomov size = sizeof(struct crush_bucket_straw2); 251958a2765SIlya Dryomov break; 2523d14c5d2SYehuda Sadeh default: 2533d14c5d2SYehuda Sadeh err = -EINVAL; 2543d14c5d2SYehuda Sadeh goto bad; 2553d14c5d2SYehuda Sadeh } 2563d14c5d2SYehuda Sadeh BUG_ON(size == 0); 2573d14c5d2SYehuda Sadeh b = c->buckets[i] = kzalloc(size, GFP_NOFS); 2583d14c5d2SYehuda Sadeh if (b == NULL) 2593d14c5d2SYehuda Sadeh goto badmem; 2603d14c5d2SYehuda Sadeh 2613d14c5d2SYehuda Sadeh ceph_decode_need(p, end, 4*sizeof(u32), bad); 2623d14c5d2SYehuda Sadeh b->id = ceph_decode_32(p); 2633d14c5d2SYehuda Sadeh b->type = ceph_decode_16(p); 2643d14c5d2SYehuda Sadeh b->alg = ceph_decode_8(p); 2653d14c5d2SYehuda Sadeh b->hash = ceph_decode_8(p); 2663d14c5d2SYehuda Sadeh b->weight = ceph_decode_32(p); 2673d14c5d2SYehuda Sadeh b->size = ceph_decode_32(p); 2683d14c5d2SYehuda Sadeh 2693d14c5d2SYehuda Sadeh dout("crush_decode bucket size %d off %x %p to %p\n", 2703d14c5d2SYehuda Sadeh b->size, (int)(*p-start), *p, end); 2713d14c5d2SYehuda Sadeh 2723d14c5d2SYehuda Sadeh b->items = kcalloc(b->size, sizeof(__s32), GFP_NOFS); 2733d14c5d2SYehuda Sadeh if (b->items == NULL) 2743d14c5d2SYehuda Sadeh goto badmem; 2753d14c5d2SYehuda Sadeh 2763d14c5d2SYehuda Sadeh ceph_decode_need(p, end, b->size*sizeof(u32), bad); 2773d14c5d2SYehuda Sadeh for (j = 0; j < b->size; j++) 2783d14c5d2SYehuda Sadeh b->items[j] = ceph_decode_32(p); 2793d14c5d2SYehuda Sadeh 2803d14c5d2SYehuda Sadeh switch (b->alg) { 2813d14c5d2SYehuda Sadeh case CRUSH_BUCKET_UNIFORM: 2823d14c5d2SYehuda Sadeh err = crush_decode_uniform_bucket(p, end, 2833d14c5d2SYehuda Sadeh (struct crush_bucket_uniform *)b); 2843d14c5d2SYehuda Sadeh if (err < 0) 2853d14c5d2SYehuda Sadeh goto bad; 2863d14c5d2SYehuda Sadeh break; 2873d14c5d2SYehuda Sadeh case CRUSH_BUCKET_LIST: 2883d14c5d2SYehuda Sadeh err = crush_decode_list_bucket(p, end, 2893d14c5d2SYehuda Sadeh (struct crush_bucket_list *)b); 2903d14c5d2SYehuda Sadeh if (err < 0) 2913d14c5d2SYehuda Sadeh goto bad; 2923d14c5d2SYehuda Sadeh break; 2933d14c5d2SYehuda Sadeh case CRUSH_BUCKET_TREE: 2943d14c5d2SYehuda Sadeh err = crush_decode_tree_bucket(p, end, 2953d14c5d2SYehuda Sadeh (struct crush_bucket_tree *)b); 2963d14c5d2SYehuda Sadeh if (err < 0) 2973d14c5d2SYehuda Sadeh goto bad; 2983d14c5d2SYehuda Sadeh break; 2993d14c5d2SYehuda Sadeh case CRUSH_BUCKET_STRAW: 3003d14c5d2SYehuda Sadeh err = crush_decode_straw_bucket(p, end, 3013d14c5d2SYehuda Sadeh (struct crush_bucket_straw *)b); 3023d14c5d2SYehuda Sadeh if (err < 0) 3033d14c5d2SYehuda Sadeh goto bad; 3043d14c5d2SYehuda Sadeh break; 305958a2765SIlya Dryomov case CRUSH_BUCKET_STRAW2: 306958a2765SIlya Dryomov err = crush_decode_straw2_bucket(p, end, 307958a2765SIlya Dryomov (struct crush_bucket_straw2 *)b); 308958a2765SIlya Dryomov if (err < 0) 309958a2765SIlya Dryomov goto bad; 310958a2765SIlya Dryomov break; 3113d14c5d2SYehuda Sadeh } 3123d14c5d2SYehuda Sadeh } 3133d14c5d2SYehuda Sadeh 3143d14c5d2SYehuda Sadeh /* rules */ 3153d14c5d2SYehuda Sadeh dout("rule vec is %p\n", c->rules); 3163d14c5d2SYehuda Sadeh for (i = 0; i < c->max_rules; i++) { 3173d14c5d2SYehuda Sadeh u32 yes; 3183d14c5d2SYehuda Sadeh struct crush_rule *r; 3193d14c5d2SYehuda Sadeh 320293dffaaSDan Carpenter err = -EINVAL; 3213d14c5d2SYehuda Sadeh ceph_decode_32_safe(p, end, yes, bad); 3223d14c5d2SYehuda Sadeh if (!yes) { 3233d14c5d2SYehuda Sadeh dout("crush_decode NO rule %d off %x %p to %p\n", 3243d14c5d2SYehuda Sadeh i, (int)(*p-start), *p, end); 3253d14c5d2SYehuda Sadeh c->rules[i] = NULL; 3263d14c5d2SYehuda Sadeh continue; 3273d14c5d2SYehuda Sadeh } 3283d14c5d2SYehuda Sadeh 3293d14c5d2SYehuda Sadeh dout("crush_decode rule %d off %x %p to %p\n", 3303d14c5d2SYehuda Sadeh i, (int)(*p-start), *p, end); 3313d14c5d2SYehuda Sadeh 3323d14c5d2SYehuda Sadeh /* len */ 3333d14c5d2SYehuda Sadeh ceph_decode_32_safe(p, end, yes, bad); 3343d14c5d2SYehuda Sadeh #if BITS_PER_LONG == 32 3353d14c5d2SYehuda Sadeh err = -EINVAL; 33664486697SXi Wang if (yes > (ULONG_MAX - sizeof(*r)) 33764486697SXi Wang / sizeof(struct crush_rule_step)) 3383d14c5d2SYehuda Sadeh goto bad; 3393d14c5d2SYehuda Sadeh #endif 3403d14c5d2SYehuda Sadeh r = c->rules[i] = kmalloc(sizeof(*r) + 3413d14c5d2SYehuda Sadeh yes*sizeof(struct crush_rule_step), 3423d14c5d2SYehuda Sadeh GFP_NOFS); 3433d14c5d2SYehuda Sadeh if (r == NULL) 3443d14c5d2SYehuda Sadeh goto badmem; 3453d14c5d2SYehuda Sadeh dout(" rule %d is at %p\n", i, r); 3463d14c5d2SYehuda Sadeh r->len = yes; 3473d14c5d2SYehuda Sadeh ceph_decode_copy_safe(p, end, &r->mask, 4, bad); /* 4 u8's */ 3483d14c5d2SYehuda Sadeh ceph_decode_need(p, end, r->len*3*sizeof(u32), bad); 3493d14c5d2SYehuda Sadeh for (j = 0; j < r->len; j++) { 3503d14c5d2SYehuda Sadeh r->steps[j].op = ceph_decode_32(p); 3513d14c5d2SYehuda Sadeh r->steps[j].arg1 = ceph_decode_32(p); 3523d14c5d2SYehuda Sadeh r->steps[j].arg2 = ceph_decode_32(p); 3533d14c5d2SYehuda Sadeh } 3543d14c5d2SYehuda Sadeh } 3553d14c5d2SYehuda Sadeh 3563d14c5d2SYehuda Sadeh /* ignore trailing name maps. */ 357546f04efSSage Weil for (num_name_maps = 0; num_name_maps < 3; num_name_maps++) { 358546f04efSSage Weil err = skip_name_map(p, end); 359546f04efSSage Weil if (err < 0) 360546f04efSSage Weil goto done; 361546f04efSSage Weil } 3623d14c5d2SYehuda Sadeh 363546f04efSSage Weil /* tunables */ 364546f04efSSage Weil ceph_decode_need(p, end, 3*sizeof(u32), done); 365546f04efSSage Weil c->choose_local_tries = ceph_decode_32(p); 366546f04efSSage Weil c->choose_local_fallback_tries = ceph_decode_32(p); 367546f04efSSage Weil c->choose_total_tries = ceph_decode_32(p); 368b9b519b7SIlya Dryomov dout("crush decode tunable choose_local_tries = %d\n", 369546f04efSSage Weil c->choose_local_tries); 370b9b519b7SIlya Dryomov dout("crush decode tunable choose_local_fallback_tries = %d\n", 371546f04efSSage Weil c->choose_local_fallback_tries); 372b9b519b7SIlya Dryomov dout("crush decode tunable choose_total_tries = %d\n", 373546f04efSSage Weil c->choose_total_tries); 374546f04efSSage Weil 3751604f488SJim Schutt ceph_decode_need(p, end, sizeof(u32), done); 3761604f488SJim Schutt c->chooseleaf_descend_once = ceph_decode_32(p); 377b9b519b7SIlya Dryomov dout("crush decode tunable chooseleaf_descend_once = %d\n", 3781604f488SJim Schutt c->chooseleaf_descend_once); 3791604f488SJim Schutt 380f140662fSIlya Dryomov ceph_decode_need(p, end, sizeof(u8), done); 381f140662fSIlya Dryomov c->chooseleaf_vary_r = ceph_decode_8(p); 382b9b519b7SIlya Dryomov dout("crush decode tunable chooseleaf_vary_r = %d\n", 383f140662fSIlya Dryomov c->chooseleaf_vary_r); 384f140662fSIlya Dryomov 385b9b519b7SIlya Dryomov /* skip straw_calc_version, allowed_bucket_algs */ 386b9b519b7SIlya Dryomov ceph_decode_need(p, end, sizeof(u8) + sizeof(u32), done); 387b9b519b7SIlya Dryomov *p += sizeof(u8) + sizeof(u32); 388b9b519b7SIlya Dryomov 389b9b519b7SIlya Dryomov ceph_decode_need(p, end, sizeof(u8), done); 390b9b519b7SIlya Dryomov c->chooseleaf_stable = ceph_decode_8(p); 391b9b519b7SIlya Dryomov dout("crush decode tunable chooseleaf_stable = %d\n", 392b9b519b7SIlya Dryomov c->chooseleaf_stable); 393b9b519b7SIlya Dryomov 394546f04efSSage Weil done: 3959afd30dbSIlya Dryomov crush_finalize(c); 3963d14c5d2SYehuda Sadeh dout("crush_decode success\n"); 3973d14c5d2SYehuda Sadeh return c; 3983d14c5d2SYehuda Sadeh 3993d14c5d2SYehuda Sadeh badmem: 4003d14c5d2SYehuda Sadeh err = -ENOMEM; 4013d14c5d2SYehuda Sadeh bad: 4023d14c5d2SYehuda Sadeh dout("crush_decode fail %d\n", err); 4033d14c5d2SYehuda Sadeh crush_destroy(c); 4043d14c5d2SYehuda Sadeh return ERR_PTR(err); 4053d14c5d2SYehuda Sadeh } 4063d14c5d2SYehuda Sadeh 407f984cb76SIlya Dryomov int ceph_pg_compare(const struct ceph_pg *lhs, const struct ceph_pg *rhs) 408f984cb76SIlya Dryomov { 409f984cb76SIlya Dryomov if (lhs->pool < rhs->pool) 410f984cb76SIlya Dryomov return -1; 411f984cb76SIlya Dryomov if (lhs->pool > rhs->pool) 412f984cb76SIlya Dryomov return 1; 413f984cb76SIlya Dryomov if (lhs->seed < rhs->seed) 414f984cb76SIlya Dryomov return -1; 415f984cb76SIlya Dryomov if (lhs->seed > rhs->seed) 416f984cb76SIlya Dryomov return 1; 417f984cb76SIlya Dryomov 418f984cb76SIlya Dryomov return 0; 419f984cb76SIlya Dryomov } 420f984cb76SIlya Dryomov 4213d14c5d2SYehuda Sadeh /* 4223d14c5d2SYehuda Sadeh * rbtree of pg_mapping for handling pg_temp (explicit mapping of pgid 4239686f94cSIlya Dryomov * to a set of osds) and primary_temp (explicit primary setting) 4243d14c5d2SYehuda Sadeh */ 4253d14c5d2SYehuda Sadeh static int __insert_pg_mapping(struct ceph_pg_mapping *new, 4263d14c5d2SYehuda Sadeh struct rb_root *root) 4273d14c5d2SYehuda Sadeh { 4283d14c5d2SYehuda Sadeh struct rb_node **p = &root->rb_node; 4293d14c5d2SYehuda Sadeh struct rb_node *parent = NULL; 4303d14c5d2SYehuda Sadeh struct ceph_pg_mapping *pg = NULL; 4313d14c5d2SYehuda Sadeh int c; 4323d14c5d2SYehuda Sadeh 4338adc8b3dSSage Weil dout("__insert_pg_mapping %llx %p\n", *(u64 *)&new->pgid, new); 4343d14c5d2SYehuda Sadeh while (*p) { 4353d14c5d2SYehuda Sadeh parent = *p; 4363d14c5d2SYehuda Sadeh pg = rb_entry(parent, struct ceph_pg_mapping, node); 437f984cb76SIlya Dryomov c = ceph_pg_compare(&new->pgid, &pg->pgid); 4383d14c5d2SYehuda Sadeh if (c < 0) 4393d14c5d2SYehuda Sadeh p = &(*p)->rb_left; 4403d14c5d2SYehuda Sadeh else if (c > 0) 4413d14c5d2SYehuda Sadeh p = &(*p)->rb_right; 4423d14c5d2SYehuda Sadeh else 4433d14c5d2SYehuda Sadeh return -EEXIST; 4443d14c5d2SYehuda Sadeh } 4453d14c5d2SYehuda Sadeh 4463d14c5d2SYehuda Sadeh rb_link_node(&new->node, parent, p); 4473d14c5d2SYehuda Sadeh rb_insert_color(&new->node, root); 4483d14c5d2SYehuda Sadeh return 0; 4493d14c5d2SYehuda Sadeh } 4503d14c5d2SYehuda Sadeh 4513d14c5d2SYehuda Sadeh static struct ceph_pg_mapping *__lookup_pg_mapping(struct rb_root *root, 4525b191d99SSage Weil struct ceph_pg pgid) 4533d14c5d2SYehuda Sadeh { 4543d14c5d2SYehuda Sadeh struct rb_node *n = root->rb_node; 4553d14c5d2SYehuda Sadeh struct ceph_pg_mapping *pg; 4563d14c5d2SYehuda Sadeh int c; 4573d14c5d2SYehuda Sadeh 4583d14c5d2SYehuda Sadeh while (n) { 4593d14c5d2SYehuda Sadeh pg = rb_entry(n, struct ceph_pg_mapping, node); 460f984cb76SIlya Dryomov c = ceph_pg_compare(&pgid, &pg->pgid); 4618adc8b3dSSage Weil if (c < 0) { 4623d14c5d2SYehuda Sadeh n = n->rb_left; 4638adc8b3dSSage Weil } else if (c > 0) { 4643d14c5d2SYehuda Sadeh n = n->rb_right; 4658adc8b3dSSage Weil } else { 4665b191d99SSage Weil dout("__lookup_pg_mapping %lld.%x got %p\n", 4675b191d99SSage Weil pgid.pool, pgid.seed, pg); 4683d14c5d2SYehuda Sadeh return pg; 4693d14c5d2SYehuda Sadeh } 4708adc8b3dSSage Weil } 4713d14c5d2SYehuda Sadeh return NULL; 4723d14c5d2SYehuda Sadeh } 4733d14c5d2SYehuda Sadeh 4745b191d99SSage Weil static int __remove_pg_mapping(struct rb_root *root, struct ceph_pg pgid) 4758adc8b3dSSage Weil { 4768adc8b3dSSage Weil struct ceph_pg_mapping *pg = __lookup_pg_mapping(root, pgid); 4778adc8b3dSSage Weil 4788adc8b3dSSage Weil if (pg) { 4795b191d99SSage Weil dout("__remove_pg_mapping %lld.%x %p\n", pgid.pool, pgid.seed, 4805b191d99SSage Weil pg); 4818adc8b3dSSage Weil rb_erase(&pg->node, root); 4828adc8b3dSSage Weil kfree(pg); 4838adc8b3dSSage Weil return 0; 4848adc8b3dSSage Weil } 4855b191d99SSage Weil dout("__remove_pg_mapping %lld.%x dne\n", pgid.pool, pgid.seed); 4868adc8b3dSSage Weil return -ENOENT; 4878adc8b3dSSage Weil } 4888adc8b3dSSage Weil 4893d14c5d2SYehuda Sadeh /* 4903d14c5d2SYehuda Sadeh * rbtree of pg pool info 4913d14c5d2SYehuda Sadeh */ 4923d14c5d2SYehuda Sadeh static int __insert_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *new) 4933d14c5d2SYehuda Sadeh { 4943d14c5d2SYehuda Sadeh struct rb_node **p = &root->rb_node; 4953d14c5d2SYehuda Sadeh struct rb_node *parent = NULL; 4963d14c5d2SYehuda Sadeh struct ceph_pg_pool_info *pi = NULL; 4973d14c5d2SYehuda Sadeh 4983d14c5d2SYehuda Sadeh while (*p) { 4993d14c5d2SYehuda Sadeh parent = *p; 5003d14c5d2SYehuda Sadeh pi = rb_entry(parent, struct ceph_pg_pool_info, node); 5013d14c5d2SYehuda Sadeh if (new->id < pi->id) 5023d14c5d2SYehuda Sadeh p = &(*p)->rb_left; 5033d14c5d2SYehuda Sadeh else if (new->id > pi->id) 5043d14c5d2SYehuda Sadeh p = &(*p)->rb_right; 5053d14c5d2SYehuda Sadeh else 5063d14c5d2SYehuda Sadeh return -EEXIST; 5073d14c5d2SYehuda Sadeh } 5083d14c5d2SYehuda Sadeh 5093d14c5d2SYehuda Sadeh rb_link_node(&new->node, parent, p); 5103d14c5d2SYehuda Sadeh rb_insert_color(&new->node, root); 5113d14c5d2SYehuda Sadeh return 0; 5123d14c5d2SYehuda Sadeh } 5133d14c5d2SYehuda Sadeh 5144f6a7e5eSSage Weil static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, u64 id) 5153d14c5d2SYehuda Sadeh { 5163d14c5d2SYehuda Sadeh struct ceph_pg_pool_info *pi; 5173d14c5d2SYehuda Sadeh struct rb_node *n = root->rb_node; 5183d14c5d2SYehuda Sadeh 5193d14c5d2SYehuda Sadeh while (n) { 5203d14c5d2SYehuda Sadeh pi = rb_entry(n, struct ceph_pg_pool_info, node); 5213d14c5d2SYehuda Sadeh if (id < pi->id) 5223d14c5d2SYehuda Sadeh n = n->rb_left; 5233d14c5d2SYehuda Sadeh else if (id > pi->id) 5243d14c5d2SYehuda Sadeh n = n->rb_right; 5253d14c5d2SYehuda Sadeh else 5263d14c5d2SYehuda Sadeh return pi; 5273d14c5d2SYehuda Sadeh } 5283d14c5d2SYehuda Sadeh return NULL; 5293d14c5d2SYehuda Sadeh } 5303d14c5d2SYehuda Sadeh 531ce7f6a27SIlya Dryomov struct ceph_pg_pool_info *ceph_pg_pool_by_id(struct ceph_osdmap *map, u64 id) 532ce7f6a27SIlya Dryomov { 533ce7f6a27SIlya Dryomov return __lookup_pg_pool(&map->pg_pools, id); 534ce7f6a27SIlya Dryomov } 535ce7f6a27SIlya Dryomov 53672afc71fSAlex Elder const char *ceph_pg_pool_name_by_id(struct ceph_osdmap *map, u64 id) 53772afc71fSAlex Elder { 53872afc71fSAlex Elder struct ceph_pg_pool_info *pi; 53972afc71fSAlex Elder 54072afc71fSAlex Elder if (id == CEPH_NOPOOL) 54172afc71fSAlex Elder return NULL; 54272afc71fSAlex Elder 54372afc71fSAlex Elder if (WARN_ON_ONCE(id > (u64) INT_MAX)) 54472afc71fSAlex Elder return NULL; 54572afc71fSAlex Elder 54672afc71fSAlex Elder pi = __lookup_pg_pool(&map->pg_pools, (int) id); 54772afc71fSAlex Elder 54872afc71fSAlex Elder return pi ? pi->name : NULL; 54972afc71fSAlex Elder } 55072afc71fSAlex Elder EXPORT_SYMBOL(ceph_pg_pool_name_by_id); 55172afc71fSAlex Elder 5523d14c5d2SYehuda Sadeh int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name) 5533d14c5d2SYehuda Sadeh { 5543d14c5d2SYehuda Sadeh struct rb_node *rbp; 5553d14c5d2SYehuda Sadeh 5563d14c5d2SYehuda Sadeh for (rbp = rb_first(&map->pg_pools); rbp; rbp = rb_next(rbp)) { 5573d14c5d2SYehuda Sadeh struct ceph_pg_pool_info *pi = 5583d14c5d2SYehuda Sadeh rb_entry(rbp, struct ceph_pg_pool_info, node); 5593d14c5d2SYehuda Sadeh if (pi->name && strcmp(pi->name, name) == 0) 5603d14c5d2SYehuda Sadeh return pi->id; 5613d14c5d2SYehuda Sadeh } 5623d14c5d2SYehuda Sadeh return -ENOENT; 5633d14c5d2SYehuda Sadeh } 5643d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_pg_poolid_by_name); 5653d14c5d2SYehuda Sadeh 5663d14c5d2SYehuda Sadeh static void __remove_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *pi) 5673d14c5d2SYehuda Sadeh { 5683d14c5d2SYehuda Sadeh rb_erase(&pi->node, root); 5693d14c5d2SYehuda Sadeh kfree(pi->name); 5703d14c5d2SYehuda Sadeh kfree(pi); 5713d14c5d2SYehuda Sadeh } 5723d14c5d2SYehuda Sadeh 5730f70c7eeSIlya Dryomov static int decode_pool(void **p, void *end, struct ceph_pg_pool_info *pi) 5743d14c5d2SYehuda Sadeh { 5754f6a7e5eSSage Weil u8 ev, cv; 5764f6a7e5eSSage Weil unsigned len, num; 5774f6a7e5eSSage Weil void *pool_end; 5783d14c5d2SYehuda Sadeh 5794f6a7e5eSSage Weil ceph_decode_need(p, end, 2 + 4, bad); 5804f6a7e5eSSage Weil ev = ceph_decode_8(p); /* encoding version */ 5814f6a7e5eSSage Weil cv = ceph_decode_8(p); /* compat version */ 5824f6a7e5eSSage Weil if (ev < 5) { 583b9a67899SJoe Perches pr_warn("got v %d < 5 cv %d of ceph_pg_pool\n", ev, cv); 5844f6a7e5eSSage Weil return -EINVAL; 5854f6a7e5eSSage Weil } 58617a13e40SIlya Dryomov if (cv > 9) { 587b9a67899SJoe Perches pr_warn("got v %d cv %d > 9 of ceph_pg_pool\n", ev, cv); 5884f6a7e5eSSage Weil return -EINVAL; 5894f6a7e5eSSage Weil } 5904f6a7e5eSSage Weil len = ceph_decode_32(p); 5914f6a7e5eSSage Weil ceph_decode_need(p, end, len, bad); 5924f6a7e5eSSage Weil pool_end = *p + len; 5933d14c5d2SYehuda Sadeh 5944f6a7e5eSSage Weil pi->type = ceph_decode_8(p); 5954f6a7e5eSSage Weil pi->size = ceph_decode_8(p); 5964f6a7e5eSSage Weil pi->crush_ruleset = ceph_decode_8(p); 5974f6a7e5eSSage Weil pi->object_hash = ceph_decode_8(p); 5984f6a7e5eSSage Weil 5994f6a7e5eSSage Weil pi->pg_num = ceph_decode_32(p); 6004f6a7e5eSSage Weil pi->pgp_num = ceph_decode_32(p); 6014f6a7e5eSSage Weil 6024f6a7e5eSSage Weil *p += 4 + 4; /* skip lpg* */ 6034f6a7e5eSSage Weil *p += 4; /* skip last_change */ 6044f6a7e5eSSage Weil *p += 8 + 4; /* skip snap_seq, snap_epoch */ 6054f6a7e5eSSage Weil 6064f6a7e5eSSage Weil /* skip snaps */ 6074f6a7e5eSSage Weil num = ceph_decode_32(p); 6084f6a7e5eSSage Weil while (num--) { 6094f6a7e5eSSage Weil *p += 8; /* snapid key */ 6104f6a7e5eSSage Weil *p += 1 + 1; /* versions */ 6114f6a7e5eSSage Weil len = ceph_decode_32(p); 6124f6a7e5eSSage Weil *p += len; 6133d14c5d2SYehuda Sadeh } 6143d14c5d2SYehuda Sadeh 61517a13e40SIlya Dryomov /* skip removed_snaps */ 6164f6a7e5eSSage Weil num = ceph_decode_32(p); 6174f6a7e5eSSage Weil *p += num * (8 + 8); 6184f6a7e5eSSage Weil 6194f6a7e5eSSage Weil *p += 8; /* skip auid */ 6204f6a7e5eSSage Weil pi->flags = ceph_decode_64(p); 62117a13e40SIlya Dryomov *p += 4; /* skip crash_replay_interval */ 62217a13e40SIlya Dryomov 62317a13e40SIlya Dryomov if (ev >= 7) 62404812acfSIlya Dryomov pi->min_size = ceph_decode_8(p); 62504812acfSIlya Dryomov else 62604812acfSIlya Dryomov pi->min_size = pi->size - pi->size / 2; 62717a13e40SIlya Dryomov 62817a13e40SIlya Dryomov if (ev >= 8) 62917a13e40SIlya Dryomov *p += 8 + 8; /* skip quota_max_* */ 63017a13e40SIlya Dryomov 63117a13e40SIlya Dryomov if (ev >= 9) { 63217a13e40SIlya Dryomov /* skip tiers */ 63317a13e40SIlya Dryomov num = ceph_decode_32(p); 63417a13e40SIlya Dryomov *p += num * 8; 63517a13e40SIlya Dryomov 63617a13e40SIlya Dryomov *p += 8; /* skip tier_of */ 63717a13e40SIlya Dryomov *p += 1; /* skip cache_mode */ 63817a13e40SIlya Dryomov 63917a13e40SIlya Dryomov pi->read_tier = ceph_decode_64(p); 64017a13e40SIlya Dryomov pi->write_tier = ceph_decode_64(p); 64117a13e40SIlya Dryomov } else { 64217a13e40SIlya Dryomov pi->read_tier = -1; 64317a13e40SIlya Dryomov pi->write_tier = -1; 64417a13e40SIlya Dryomov } 6454f6a7e5eSSage Weil 64604812acfSIlya Dryomov if (ev >= 10) { 64704812acfSIlya Dryomov /* skip properties */ 64804812acfSIlya Dryomov num = ceph_decode_32(p); 64904812acfSIlya Dryomov while (num--) { 65004812acfSIlya Dryomov len = ceph_decode_32(p); 65104812acfSIlya Dryomov *p += len; /* key */ 65204812acfSIlya Dryomov len = ceph_decode_32(p); 65304812acfSIlya Dryomov *p += len; /* val */ 65404812acfSIlya Dryomov } 65504812acfSIlya Dryomov } 65604812acfSIlya Dryomov 65704812acfSIlya Dryomov if (ev >= 11) { 65804812acfSIlya Dryomov /* skip hit_set_params */ 65904812acfSIlya Dryomov *p += 1 + 1; /* versions */ 66004812acfSIlya Dryomov len = ceph_decode_32(p); 66104812acfSIlya Dryomov *p += len; 66204812acfSIlya Dryomov 66304812acfSIlya Dryomov *p += 4; /* skip hit_set_period */ 66404812acfSIlya Dryomov *p += 4; /* skip hit_set_count */ 66504812acfSIlya Dryomov } 66604812acfSIlya Dryomov 66704812acfSIlya Dryomov if (ev >= 12) 66804812acfSIlya Dryomov *p += 4; /* skip stripe_width */ 66904812acfSIlya Dryomov 67004812acfSIlya Dryomov if (ev >= 13) { 67104812acfSIlya Dryomov *p += 8; /* skip target_max_bytes */ 67204812acfSIlya Dryomov *p += 8; /* skip target_max_objects */ 67304812acfSIlya Dryomov *p += 4; /* skip cache_target_dirty_ratio_micro */ 67404812acfSIlya Dryomov *p += 4; /* skip cache_target_full_ratio_micro */ 67504812acfSIlya Dryomov *p += 4; /* skip cache_min_flush_age */ 67604812acfSIlya Dryomov *p += 4; /* skip cache_min_evict_age */ 67704812acfSIlya Dryomov } 67804812acfSIlya Dryomov 67904812acfSIlya Dryomov if (ev >= 14) { 68004812acfSIlya Dryomov /* skip erasure_code_profile */ 68104812acfSIlya Dryomov len = ceph_decode_32(p); 68204812acfSIlya Dryomov *p += len; 68304812acfSIlya Dryomov } 68404812acfSIlya Dryomov 68504812acfSIlya Dryomov if (ev >= 15) 68604812acfSIlya Dryomov pi->last_force_request_resend = ceph_decode_32(p); 68704812acfSIlya Dryomov else 68804812acfSIlya Dryomov pi->last_force_request_resend = 0; 68904812acfSIlya Dryomov 6904f6a7e5eSSage Weil /* ignore the rest */ 6914f6a7e5eSSage Weil 6924f6a7e5eSSage Weil *p = pool_end; 6934f6a7e5eSSage Weil calc_pg_masks(pi); 6943d14c5d2SYehuda Sadeh return 0; 6953d14c5d2SYehuda Sadeh 6963d14c5d2SYehuda Sadeh bad: 6973d14c5d2SYehuda Sadeh return -EINVAL; 6983d14c5d2SYehuda Sadeh } 6993d14c5d2SYehuda Sadeh 7000f70c7eeSIlya Dryomov static int decode_pool_names(void **p, void *end, struct ceph_osdmap *map) 7013d14c5d2SYehuda Sadeh { 7023d14c5d2SYehuda Sadeh struct ceph_pg_pool_info *pi; 7034f6a7e5eSSage Weil u32 num, len; 7044f6a7e5eSSage Weil u64 pool; 7053d14c5d2SYehuda Sadeh 7063d14c5d2SYehuda Sadeh ceph_decode_32_safe(p, end, num, bad); 7073d14c5d2SYehuda Sadeh dout(" %d pool names\n", num); 7083d14c5d2SYehuda Sadeh while (num--) { 7094f6a7e5eSSage Weil ceph_decode_64_safe(p, end, pool, bad); 7103d14c5d2SYehuda Sadeh ceph_decode_32_safe(p, end, len, bad); 7114f6a7e5eSSage Weil dout(" pool %llu len %d\n", pool, len); 712ad3b904cSXi Wang ceph_decode_need(p, end, len, bad); 7133d14c5d2SYehuda Sadeh pi = __lookup_pg_pool(&map->pg_pools, pool); 7143d14c5d2SYehuda Sadeh if (pi) { 715ad3b904cSXi Wang char *name = kstrndup(*p, len, GFP_NOFS); 716ad3b904cSXi Wang 717ad3b904cSXi Wang if (!name) 718ad3b904cSXi Wang return -ENOMEM; 7193d14c5d2SYehuda Sadeh kfree(pi->name); 720ad3b904cSXi Wang pi->name = name; 7213d14c5d2SYehuda Sadeh dout(" name is %s\n", pi->name); 7223d14c5d2SYehuda Sadeh } 7233d14c5d2SYehuda Sadeh *p += len; 7243d14c5d2SYehuda Sadeh } 7253d14c5d2SYehuda Sadeh return 0; 7263d14c5d2SYehuda Sadeh 7273d14c5d2SYehuda Sadeh bad: 7283d14c5d2SYehuda Sadeh return -EINVAL; 7293d14c5d2SYehuda Sadeh } 7303d14c5d2SYehuda Sadeh 7313d14c5d2SYehuda Sadeh /* 7323d14c5d2SYehuda Sadeh * osd map 7333d14c5d2SYehuda Sadeh */ 734e5253a7bSIlya Dryomov struct ceph_osdmap *ceph_osdmap_alloc(void) 735e5253a7bSIlya Dryomov { 736e5253a7bSIlya Dryomov struct ceph_osdmap *map; 737e5253a7bSIlya Dryomov 738e5253a7bSIlya Dryomov map = kzalloc(sizeof(*map), GFP_NOIO); 739e5253a7bSIlya Dryomov if (!map) 740e5253a7bSIlya Dryomov return NULL; 741e5253a7bSIlya Dryomov 742e5253a7bSIlya Dryomov map->pg_pools = RB_ROOT; 743e5253a7bSIlya Dryomov map->pool_max = -1; 744e5253a7bSIlya Dryomov map->pg_temp = RB_ROOT; 745e5253a7bSIlya Dryomov map->primary_temp = RB_ROOT; 746743efcffSIlya Dryomov mutex_init(&map->crush_workspace_mutex); 747e5253a7bSIlya Dryomov 748e5253a7bSIlya Dryomov return map; 749e5253a7bSIlya Dryomov } 750e5253a7bSIlya Dryomov 7513d14c5d2SYehuda Sadeh void ceph_osdmap_destroy(struct ceph_osdmap *map) 7523d14c5d2SYehuda Sadeh { 7533d14c5d2SYehuda Sadeh dout("osdmap_destroy %p\n", map); 7543d14c5d2SYehuda Sadeh if (map->crush) 7553d14c5d2SYehuda Sadeh crush_destroy(map->crush); 7563d14c5d2SYehuda Sadeh while (!RB_EMPTY_ROOT(&map->pg_temp)) { 7573d14c5d2SYehuda Sadeh struct ceph_pg_mapping *pg = 7583d14c5d2SYehuda Sadeh rb_entry(rb_first(&map->pg_temp), 7593d14c5d2SYehuda Sadeh struct ceph_pg_mapping, node); 7603d14c5d2SYehuda Sadeh rb_erase(&pg->node, &map->pg_temp); 7613d14c5d2SYehuda Sadeh kfree(pg); 7623d14c5d2SYehuda Sadeh } 7639686f94cSIlya Dryomov while (!RB_EMPTY_ROOT(&map->primary_temp)) { 7649686f94cSIlya Dryomov struct ceph_pg_mapping *pg = 7659686f94cSIlya Dryomov rb_entry(rb_first(&map->primary_temp), 7669686f94cSIlya Dryomov struct ceph_pg_mapping, node); 7679686f94cSIlya Dryomov rb_erase(&pg->node, &map->primary_temp); 7689686f94cSIlya Dryomov kfree(pg); 7699686f94cSIlya Dryomov } 7703d14c5d2SYehuda Sadeh while (!RB_EMPTY_ROOT(&map->pg_pools)) { 7713d14c5d2SYehuda Sadeh struct ceph_pg_pool_info *pi = 7723d14c5d2SYehuda Sadeh rb_entry(rb_first(&map->pg_pools), 7733d14c5d2SYehuda Sadeh struct ceph_pg_pool_info, node); 7743d14c5d2SYehuda Sadeh __remove_pg_pool(&map->pg_pools, pi); 7753d14c5d2SYehuda Sadeh } 7763d14c5d2SYehuda Sadeh kfree(map->osd_state); 7773d14c5d2SYehuda Sadeh kfree(map->osd_weight); 7783d14c5d2SYehuda Sadeh kfree(map->osd_addr); 7792cfa34f2SIlya Dryomov kfree(map->osd_primary_affinity); 78066a0e2d5SIlya Dryomov kfree(map->crush_workspace); 7813d14c5d2SYehuda Sadeh kfree(map); 7823d14c5d2SYehuda Sadeh } 7833d14c5d2SYehuda Sadeh 7843d14c5d2SYehuda Sadeh /* 7854d60351fSIlya Dryomov * Adjust max_osd value, (re)allocate arrays. 7864d60351fSIlya Dryomov * 7874d60351fSIlya Dryomov * The new elements are properly initialized. 7883d14c5d2SYehuda Sadeh */ 7893d14c5d2SYehuda Sadeh static int osdmap_set_max_osd(struct ceph_osdmap *map, int max) 7903d14c5d2SYehuda Sadeh { 7913d14c5d2SYehuda Sadeh u8 *state; 7923d14c5d2SYehuda Sadeh u32 *weight; 7934d60351fSIlya Dryomov struct ceph_entity_addr *addr; 7944d60351fSIlya Dryomov int i; 7953d14c5d2SYehuda Sadeh 7964d60351fSIlya Dryomov state = krealloc(map->osd_state, max*sizeof(*state), GFP_NOFS); 797589506f1SLi RongQing if (!state) 7983d14c5d2SYehuda Sadeh return -ENOMEM; 799589506f1SLi RongQing map->osd_state = state; 800589506f1SLi RongQing 801589506f1SLi RongQing weight = krealloc(map->osd_weight, max*sizeof(*weight), GFP_NOFS); 802589506f1SLi RongQing if (!weight) 803589506f1SLi RongQing return -ENOMEM; 804589506f1SLi RongQing map->osd_weight = weight; 805589506f1SLi RongQing 806589506f1SLi RongQing addr = krealloc(map->osd_addr, max*sizeof(*addr), GFP_NOFS); 807589506f1SLi RongQing if (!addr) 808589506f1SLi RongQing return -ENOMEM; 809589506f1SLi RongQing map->osd_addr = addr; 8103d14c5d2SYehuda Sadeh 8114d60351fSIlya Dryomov for (i = map->max_osd; i < max; i++) { 812589506f1SLi RongQing map->osd_state[i] = 0; 813589506f1SLi RongQing map->osd_weight[i] = CEPH_OSD_OUT; 814589506f1SLi RongQing memset(map->osd_addr + i, 0, sizeof(*map->osd_addr)); 8153d14c5d2SYehuda Sadeh } 8163d14c5d2SYehuda Sadeh 8172cfa34f2SIlya Dryomov if (map->osd_primary_affinity) { 8182cfa34f2SIlya Dryomov u32 *affinity; 8192cfa34f2SIlya Dryomov 8202cfa34f2SIlya Dryomov affinity = krealloc(map->osd_primary_affinity, 8212cfa34f2SIlya Dryomov max*sizeof(*affinity), GFP_NOFS); 8222cfa34f2SIlya Dryomov if (!affinity) 8232cfa34f2SIlya Dryomov return -ENOMEM; 824589506f1SLi RongQing map->osd_primary_affinity = affinity; 8252cfa34f2SIlya Dryomov 8262cfa34f2SIlya Dryomov for (i = map->max_osd; i < max; i++) 827589506f1SLi RongQing map->osd_primary_affinity[i] = 828589506f1SLi RongQing CEPH_OSD_DEFAULT_PRIMARY_AFFINITY; 8292cfa34f2SIlya Dryomov } 8302cfa34f2SIlya Dryomov 8313d14c5d2SYehuda Sadeh map->max_osd = max; 8324d60351fSIlya Dryomov 8333d14c5d2SYehuda Sadeh return 0; 8343d14c5d2SYehuda Sadeh } 8353d14c5d2SYehuda Sadeh 8361b6a78b5SIlya Dryomov static int osdmap_set_crush(struct ceph_osdmap *map, struct crush_map *crush) 8371b6a78b5SIlya Dryomov { 83866a0e2d5SIlya Dryomov void *workspace; 839743efcffSIlya Dryomov size_t work_size; 84066a0e2d5SIlya Dryomov 8411b6a78b5SIlya Dryomov if (IS_ERR(crush)) 8421b6a78b5SIlya Dryomov return PTR_ERR(crush); 8431b6a78b5SIlya Dryomov 844743efcffSIlya Dryomov work_size = crush_work_size(crush, CEPH_PG_MAX_SIZE); 845743efcffSIlya Dryomov dout("%s work_size %zu bytes\n", __func__, work_size); 846743efcffSIlya Dryomov workspace = kmalloc(work_size, GFP_NOIO); 84766a0e2d5SIlya Dryomov if (!workspace) { 84866a0e2d5SIlya Dryomov crush_destroy(crush); 84966a0e2d5SIlya Dryomov return -ENOMEM; 85066a0e2d5SIlya Dryomov } 85166a0e2d5SIlya Dryomov crush_init_workspace(crush, workspace); 85266a0e2d5SIlya Dryomov 8531b6a78b5SIlya Dryomov if (map->crush) 8541b6a78b5SIlya Dryomov crush_destroy(map->crush); 85566a0e2d5SIlya Dryomov kfree(map->crush_workspace); 8561b6a78b5SIlya Dryomov map->crush = crush; 85766a0e2d5SIlya Dryomov map->crush_workspace = workspace; 8581b6a78b5SIlya Dryomov return 0; 8591b6a78b5SIlya Dryomov } 8601b6a78b5SIlya Dryomov 861ec7af972SIlya Dryomov #define OSDMAP_WRAPPER_COMPAT_VER 7 862ec7af972SIlya Dryomov #define OSDMAP_CLIENT_DATA_COMPAT_VER 1 863ec7af972SIlya Dryomov 864ec7af972SIlya Dryomov /* 865ec7af972SIlya Dryomov * Return 0 or error. On success, *v is set to 0 for old (v6) osdmaps, 866ec7af972SIlya Dryomov * to struct_v of the client_data section for new (v7 and above) 867ec7af972SIlya Dryomov * osdmaps. 868ec7af972SIlya Dryomov */ 869ec7af972SIlya Dryomov static int get_osdmap_client_data_v(void **p, void *end, 870ec7af972SIlya Dryomov const char *prefix, u8 *v) 871ec7af972SIlya Dryomov { 872ec7af972SIlya Dryomov u8 struct_v; 873ec7af972SIlya Dryomov 874ec7af972SIlya Dryomov ceph_decode_8_safe(p, end, struct_v, e_inval); 875ec7af972SIlya Dryomov if (struct_v >= 7) { 876ec7af972SIlya Dryomov u8 struct_compat; 877ec7af972SIlya Dryomov 878ec7af972SIlya Dryomov ceph_decode_8_safe(p, end, struct_compat, e_inval); 879ec7af972SIlya Dryomov if (struct_compat > OSDMAP_WRAPPER_COMPAT_VER) { 880b9a67899SJoe Perches pr_warn("got v %d cv %d > %d of %s ceph_osdmap\n", 881ec7af972SIlya Dryomov struct_v, struct_compat, 882ec7af972SIlya Dryomov OSDMAP_WRAPPER_COMPAT_VER, prefix); 883ec7af972SIlya Dryomov return -EINVAL; 884ec7af972SIlya Dryomov } 885ec7af972SIlya Dryomov *p += 4; /* ignore wrapper struct_len */ 886ec7af972SIlya Dryomov 887ec7af972SIlya Dryomov ceph_decode_8_safe(p, end, struct_v, e_inval); 888ec7af972SIlya Dryomov ceph_decode_8_safe(p, end, struct_compat, e_inval); 889ec7af972SIlya Dryomov if (struct_compat > OSDMAP_CLIENT_DATA_COMPAT_VER) { 890b9a67899SJoe Perches pr_warn("got v %d cv %d > %d of %s ceph_osdmap client data\n", 891ec7af972SIlya Dryomov struct_v, struct_compat, 892ec7af972SIlya Dryomov OSDMAP_CLIENT_DATA_COMPAT_VER, prefix); 893ec7af972SIlya Dryomov return -EINVAL; 894ec7af972SIlya Dryomov } 895ec7af972SIlya Dryomov *p += 4; /* ignore client data struct_len */ 896ec7af972SIlya Dryomov } else { 897ec7af972SIlya Dryomov u16 version; 898ec7af972SIlya Dryomov 899ec7af972SIlya Dryomov *p -= 1; 900ec7af972SIlya Dryomov ceph_decode_16_safe(p, end, version, e_inval); 901ec7af972SIlya Dryomov if (version < 6) { 902b9a67899SJoe Perches pr_warn("got v %d < 6 of %s ceph_osdmap\n", 903b9a67899SJoe Perches version, prefix); 904ec7af972SIlya Dryomov return -EINVAL; 905ec7af972SIlya Dryomov } 906ec7af972SIlya Dryomov 907ec7af972SIlya Dryomov /* old osdmap enconding */ 908ec7af972SIlya Dryomov struct_v = 0; 909ec7af972SIlya Dryomov } 910ec7af972SIlya Dryomov 911ec7af972SIlya Dryomov *v = struct_v; 912ec7af972SIlya Dryomov return 0; 913ec7af972SIlya Dryomov 914ec7af972SIlya Dryomov e_inval: 915ec7af972SIlya Dryomov return -EINVAL; 916ec7af972SIlya Dryomov } 917ec7af972SIlya Dryomov 918433fbdd3SIlya Dryomov static int __decode_pools(void **p, void *end, struct ceph_osdmap *map, 919433fbdd3SIlya Dryomov bool incremental) 920433fbdd3SIlya Dryomov { 921433fbdd3SIlya Dryomov u32 n; 922433fbdd3SIlya Dryomov 923433fbdd3SIlya Dryomov ceph_decode_32_safe(p, end, n, e_inval); 924433fbdd3SIlya Dryomov while (n--) { 925433fbdd3SIlya Dryomov struct ceph_pg_pool_info *pi; 926433fbdd3SIlya Dryomov u64 pool; 927433fbdd3SIlya Dryomov int ret; 928433fbdd3SIlya Dryomov 929433fbdd3SIlya Dryomov ceph_decode_64_safe(p, end, pool, e_inval); 930433fbdd3SIlya Dryomov 931433fbdd3SIlya Dryomov pi = __lookup_pg_pool(&map->pg_pools, pool); 932433fbdd3SIlya Dryomov if (!incremental || !pi) { 933433fbdd3SIlya Dryomov pi = kzalloc(sizeof(*pi), GFP_NOFS); 934433fbdd3SIlya Dryomov if (!pi) 935433fbdd3SIlya Dryomov return -ENOMEM; 936433fbdd3SIlya Dryomov 937433fbdd3SIlya Dryomov pi->id = pool; 938433fbdd3SIlya Dryomov 939433fbdd3SIlya Dryomov ret = __insert_pg_pool(&map->pg_pools, pi); 940433fbdd3SIlya Dryomov if (ret) { 941433fbdd3SIlya Dryomov kfree(pi); 942433fbdd3SIlya Dryomov return ret; 943433fbdd3SIlya Dryomov } 944433fbdd3SIlya Dryomov } 945433fbdd3SIlya Dryomov 946433fbdd3SIlya Dryomov ret = decode_pool(p, end, pi); 947433fbdd3SIlya Dryomov if (ret) 948433fbdd3SIlya Dryomov return ret; 949433fbdd3SIlya Dryomov } 950433fbdd3SIlya Dryomov 951433fbdd3SIlya Dryomov return 0; 952433fbdd3SIlya Dryomov 953433fbdd3SIlya Dryomov e_inval: 954433fbdd3SIlya Dryomov return -EINVAL; 955433fbdd3SIlya Dryomov } 956433fbdd3SIlya Dryomov 957433fbdd3SIlya Dryomov static int decode_pools(void **p, void *end, struct ceph_osdmap *map) 958433fbdd3SIlya Dryomov { 959433fbdd3SIlya Dryomov return __decode_pools(p, end, map, false); 960433fbdd3SIlya Dryomov } 961433fbdd3SIlya Dryomov 962433fbdd3SIlya Dryomov static int decode_new_pools(void **p, void *end, struct ceph_osdmap *map) 963433fbdd3SIlya Dryomov { 964433fbdd3SIlya Dryomov return __decode_pools(p, end, map, true); 965433fbdd3SIlya Dryomov } 966433fbdd3SIlya Dryomov 96710db634eSIlya Dryomov static int __decode_pg_temp(void **p, void *end, struct ceph_osdmap *map, 96810db634eSIlya Dryomov bool incremental) 96910db634eSIlya Dryomov { 97010db634eSIlya Dryomov u32 n; 97110db634eSIlya Dryomov 97210db634eSIlya Dryomov ceph_decode_32_safe(p, end, n, e_inval); 97310db634eSIlya Dryomov while (n--) { 97410db634eSIlya Dryomov struct ceph_pg pgid; 97510db634eSIlya Dryomov u32 len, i; 97610db634eSIlya Dryomov int ret; 97710db634eSIlya Dryomov 97810db634eSIlya Dryomov ret = ceph_decode_pgid(p, end, &pgid); 97910db634eSIlya Dryomov if (ret) 98010db634eSIlya Dryomov return ret; 98110db634eSIlya Dryomov 98210db634eSIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 98310db634eSIlya Dryomov 98410db634eSIlya Dryomov ret = __remove_pg_mapping(&map->pg_temp, pgid); 98510db634eSIlya Dryomov BUG_ON(!incremental && ret != -ENOENT); 98610db634eSIlya Dryomov 98710db634eSIlya Dryomov if (!incremental || len > 0) { 98810db634eSIlya Dryomov struct ceph_pg_mapping *pg; 98910db634eSIlya Dryomov 99010db634eSIlya Dryomov ceph_decode_need(p, end, len*sizeof(u32), e_inval); 99110db634eSIlya Dryomov 99210db634eSIlya Dryomov if (len > (UINT_MAX - sizeof(*pg)) / sizeof(u32)) 99310db634eSIlya Dryomov return -EINVAL; 99410db634eSIlya Dryomov 99510db634eSIlya Dryomov pg = kzalloc(sizeof(*pg) + len*sizeof(u32), GFP_NOFS); 99610db634eSIlya Dryomov if (!pg) 99710db634eSIlya Dryomov return -ENOMEM; 99810db634eSIlya Dryomov 99910db634eSIlya Dryomov pg->pgid = pgid; 100035a935d7SIlya Dryomov pg->pg_temp.len = len; 100110db634eSIlya Dryomov for (i = 0; i < len; i++) 100235a935d7SIlya Dryomov pg->pg_temp.osds[i] = ceph_decode_32(p); 100310db634eSIlya Dryomov 100410db634eSIlya Dryomov ret = __insert_pg_mapping(pg, &map->pg_temp); 100510db634eSIlya Dryomov if (ret) { 100610db634eSIlya Dryomov kfree(pg); 100710db634eSIlya Dryomov return ret; 100810db634eSIlya Dryomov } 100910db634eSIlya Dryomov } 101010db634eSIlya Dryomov } 101110db634eSIlya Dryomov 101210db634eSIlya Dryomov return 0; 101310db634eSIlya Dryomov 101410db634eSIlya Dryomov e_inval: 101510db634eSIlya Dryomov return -EINVAL; 101610db634eSIlya Dryomov } 101710db634eSIlya Dryomov 101810db634eSIlya Dryomov static int decode_pg_temp(void **p, void *end, struct ceph_osdmap *map) 101910db634eSIlya Dryomov { 102010db634eSIlya Dryomov return __decode_pg_temp(p, end, map, false); 102110db634eSIlya Dryomov } 102210db634eSIlya Dryomov 102310db634eSIlya Dryomov static int decode_new_pg_temp(void **p, void *end, struct ceph_osdmap *map) 102410db634eSIlya Dryomov { 102510db634eSIlya Dryomov return __decode_pg_temp(p, end, map, true); 102610db634eSIlya Dryomov } 102710db634eSIlya Dryomov 1028d286de79SIlya Dryomov static int __decode_primary_temp(void **p, void *end, struct ceph_osdmap *map, 1029d286de79SIlya Dryomov bool incremental) 1030d286de79SIlya Dryomov { 1031d286de79SIlya Dryomov u32 n; 1032d286de79SIlya Dryomov 1033d286de79SIlya Dryomov ceph_decode_32_safe(p, end, n, e_inval); 1034d286de79SIlya Dryomov while (n--) { 1035d286de79SIlya Dryomov struct ceph_pg pgid; 1036d286de79SIlya Dryomov u32 osd; 1037d286de79SIlya Dryomov int ret; 1038d286de79SIlya Dryomov 1039d286de79SIlya Dryomov ret = ceph_decode_pgid(p, end, &pgid); 1040d286de79SIlya Dryomov if (ret) 1041d286de79SIlya Dryomov return ret; 1042d286de79SIlya Dryomov 1043d286de79SIlya Dryomov ceph_decode_32_safe(p, end, osd, e_inval); 1044d286de79SIlya Dryomov 1045d286de79SIlya Dryomov ret = __remove_pg_mapping(&map->primary_temp, pgid); 1046d286de79SIlya Dryomov BUG_ON(!incremental && ret != -ENOENT); 1047d286de79SIlya Dryomov 1048d286de79SIlya Dryomov if (!incremental || osd != (u32)-1) { 1049d286de79SIlya Dryomov struct ceph_pg_mapping *pg; 1050d286de79SIlya Dryomov 1051d286de79SIlya Dryomov pg = kzalloc(sizeof(*pg), GFP_NOFS); 1052d286de79SIlya Dryomov if (!pg) 1053d286de79SIlya Dryomov return -ENOMEM; 1054d286de79SIlya Dryomov 1055d286de79SIlya Dryomov pg->pgid = pgid; 1056d286de79SIlya Dryomov pg->primary_temp.osd = osd; 1057d286de79SIlya Dryomov 1058d286de79SIlya Dryomov ret = __insert_pg_mapping(pg, &map->primary_temp); 1059d286de79SIlya Dryomov if (ret) { 1060d286de79SIlya Dryomov kfree(pg); 1061d286de79SIlya Dryomov return ret; 1062d286de79SIlya Dryomov } 1063d286de79SIlya Dryomov } 1064d286de79SIlya Dryomov } 1065d286de79SIlya Dryomov 1066d286de79SIlya Dryomov return 0; 1067d286de79SIlya Dryomov 1068d286de79SIlya Dryomov e_inval: 1069d286de79SIlya Dryomov return -EINVAL; 1070d286de79SIlya Dryomov } 1071d286de79SIlya Dryomov 1072d286de79SIlya Dryomov static int decode_primary_temp(void **p, void *end, struct ceph_osdmap *map) 1073d286de79SIlya Dryomov { 1074d286de79SIlya Dryomov return __decode_primary_temp(p, end, map, false); 1075d286de79SIlya Dryomov } 1076d286de79SIlya Dryomov 1077d286de79SIlya Dryomov static int decode_new_primary_temp(void **p, void *end, 1078d286de79SIlya Dryomov struct ceph_osdmap *map) 1079d286de79SIlya Dryomov { 1080d286de79SIlya Dryomov return __decode_primary_temp(p, end, map, true); 1081d286de79SIlya Dryomov } 1082d286de79SIlya Dryomov 10832cfa34f2SIlya Dryomov u32 ceph_get_primary_affinity(struct ceph_osdmap *map, int osd) 10842cfa34f2SIlya Dryomov { 10852cfa34f2SIlya Dryomov BUG_ON(osd >= map->max_osd); 10862cfa34f2SIlya Dryomov 10872cfa34f2SIlya Dryomov if (!map->osd_primary_affinity) 10882cfa34f2SIlya Dryomov return CEPH_OSD_DEFAULT_PRIMARY_AFFINITY; 10892cfa34f2SIlya Dryomov 10902cfa34f2SIlya Dryomov return map->osd_primary_affinity[osd]; 10912cfa34f2SIlya Dryomov } 10922cfa34f2SIlya Dryomov 10932cfa34f2SIlya Dryomov static int set_primary_affinity(struct ceph_osdmap *map, int osd, u32 aff) 10942cfa34f2SIlya Dryomov { 10952cfa34f2SIlya Dryomov BUG_ON(osd >= map->max_osd); 10962cfa34f2SIlya Dryomov 10972cfa34f2SIlya Dryomov if (!map->osd_primary_affinity) { 10982cfa34f2SIlya Dryomov int i; 10992cfa34f2SIlya Dryomov 11002cfa34f2SIlya Dryomov map->osd_primary_affinity = kmalloc(map->max_osd*sizeof(u32), 11012cfa34f2SIlya Dryomov GFP_NOFS); 11022cfa34f2SIlya Dryomov if (!map->osd_primary_affinity) 11032cfa34f2SIlya Dryomov return -ENOMEM; 11042cfa34f2SIlya Dryomov 11052cfa34f2SIlya Dryomov for (i = 0; i < map->max_osd; i++) 11062cfa34f2SIlya Dryomov map->osd_primary_affinity[i] = 11072cfa34f2SIlya Dryomov CEPH_OSD_DEFAULT_PRIMARY_AFFINITY; 11082cfa34f2SIlya Dryomov } 11092cfa34f2SIlya Dryomov 11102cfa34f2SIlya Dryomov map->osd_primary_affinity[osd] = aff; 11112cfa34f2SIlya Dryomov 11122cfa34f2SIlya Dryomov return 0; 11132cfa34f2SIlya Dryomov } 11142cfa34f2SIlya Dryomov 111563a6993fSIlya Dryomov static int decode_primary_affinity(void **p, void *end, 111663a6993fSIlya Dryomov struct ceph_osdmap *map) 111763a6993fSIlya Dryomov { 111863a6993fSIlya Dryomov u32 len, i; 111963a6993fSIlya Dryomov 112063a6993fSIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 112163a6993fSIlya Dryomov if (len == 0) { 112263a6993fSIlya Dryomov kfree(map->osd_primary_affinity); 112363a6993fSIlya Dryomov map->osd_primary_affinity = NULL; 112463a6993fSIlya Dryomov return 0; 112563a6993fSIlya Dryomov } 112663a6993fSIlya Dryomov if (len != map->max_osd) 112763a6993fSIlya Dryomov goto e_inval; 112863a6993fSIlya Dryomov 112963a6993fSIlya Dryomov ceph_decode_need(p, end, map->max_osd*sizeof(u32), e_inval); 113063a6993fSIlya Dryomov 113163a6993fSIlya Dryomov for (i = 0; i < map->max_osd; i++) { 113263a6993fSIlya Dryomov int ret; 113363a6993fSIlya Dryomov 113463a6993fSIlya Dryomov ret = set_primary_affinity(map, i, ceph_decode_32(p)); 113563a6993fSIlya Dryomov if (ret) 113663a6993fSIlya Dryomov return ret; 113763a6993fSIlya Dryomov } 113863a6993fSIlya Dryomov 113963a6993fSIlya Dryomov return 0; 114063a6993fSIlya Dryomov 114163a6993fSIlya Dryomov e_inval: 114263a6993fSIlya Dryomov return -EINVAL; 114363a6993fSIlya Dryomov } 114463a6993fSIlya Dryomov 114563a6993fSIlya Dryomov static int decode_new_primary_affinity(void **p, void *end, 114663a6993fSIlya Dryomov struct ceph_osdmap *map) 114763a6993fSIlya Dryomov { 114863a6993fSIlya Dryomov u32 n; 114963a6993fSIlya Dryomov 115063a6993fSIlya Dryomov ceph_decode_32_safe(p, end, n, e_inval); 115163a6993fSIlya Dryomov while (n--) { 115263a6993fSIlya Dryomov u32 osd, aff; 115363a6993fSIlya Dryomov int ret; 115463a6993fSIlya Dryomov 115563a6993fSIlya Dryomov ceph_decode_32_safe(p, end, osd, e_inval); 115663a6993fSIlya Dryomov ceph_decode_32_safe(p, end, aff, e_inval); 115763a6993fSIlya Dryomov 115863a6993fSIlya Dryomov ret = set_primary_affinity(map, osd, aff); 115963a6993fSIlya Dryomov if (ret) 116063a6993fSIlya Dryomov return ret; 1161f31da0f3SIlya Dryomov 1162f31da0f3SIlya Dryomov pr_info("osd%d primary-affinity 0x%x\n", osd, aff); 116363a6993fSIlya Dryomov } 116463a6993fSIlya Dryomov 116563a6993fSIlya Dryomov return 0; 116663a6993fSIlya Dryomov 116763a6993fSIlya Dryomov e_inval: 116863a6993fSIlya Dryomov return -EINVAL; 116963a6993fSIlya Dryomov } 117063a6993fSIlya Dryomov 11713d14c5d2SYehuda Sadeh /* 11723d14c5d2SYehuda Sadeh * decode a full map. 11733d14c5d2SYehuda Sadeh */ 1174a2505d63SIlya Dryomov static int osdmap_decode(void **p, void *end, struct ceph_osdmap *map) 11753d14c5d2SYehuda Sadeh { 1176ec7af972SIlya Dryomov u8 struct_v; 117738a8d560SIlya Dryomov u32 epoch = 0; 11783d14c5d2SYehuda Sadeh void *start = *p; 11793977058cSIlya Dryomov u32 max; 11803977058cSIlya Dryomov u32 len, i; 1181597b52f6SIlya Dryomov int err; 11823d14c5d2SYehuda Sadeh 1183a2505d63SIlya Dryomov dout("%s %p to %p len %d\n", __func__, *p, end, (int)(end - *p)); 11843d14c5d2SYehuda Sadeh 1185ec7af972SIlya Dryomov err = get_osdmap_client_data_v(p, end, "full", &struct_v); 1186ec7af972SIlya Dryomov if (err) 1187ec7af972SIlya Dryomov goto bad; 11883d14c5d2SYehuda Sadeh 118953bbaba9SIlya Dryomov /* fsid, epoch, created, modified */ 119053bbaba9SIlya Dryomov ceph_decode_need(p, end, sizeof(map->fsid) + sizeof(u32) + 119153bbaba9SIlya Dryomov sizeof(map->created) + sizeof(map->modified), e_inval); 11923d14c5d2SYehuda Sadeh ceph_decode_copy(p, &map->fsid, sizeof(map->fsid)); 119338a8d560SIlya Dryomov epoch = map->epoch = ceph_decode_32(p); 11943d14c5d2SYehuda Sadeh ceph_decode_copy(p, &map->created, sizeof(map->created)); 11953d14c5d2SYehuda Sadeh ceph_decode_copy(p, &map->modified, sizeof(map->modified)); 11963d14c5d2SYehuda Sadeh 1197433fbdd3SIlya Dryomov /* pools */ 1198433fbdd3SIlya Dryomov err = decode_pools(p, end, map); 1199433fbdd3SIlya Dryomov if (err) 12003d14c5d2SYehuda Sadeh goto bad; 12013d14c5d2SYehuda Sadeh 12020f70c7eeSIlya Dryomov /* pool_name */ 12030f70c7eeSIlya Dryomov err = decode_pool_names(p, end, map); 1204597b52f6SIlya Dryomov if (err) 12053d14c5d2SYehuda Sadeh goto bad; 12063d14c5d2SYehuda Sadeh 1207597b52f6SIlya Dryomov ceph_decode_32_safe(p, end, map->pool_max, e_inval); 12083d14c5d2SYehuda Sadeh 1209597b52f6SIlya Dryomov ceph_decode_32_safe(p, end, map->flags, e_inval); 12103d14c5d2SYehuda Sadeh 12113977058cSIlya Dryomov /* max_osd */ 12123977058cSIlya Dryomov ceph_decode_32_safe(p, end, max, e_inval); 12133d14c5d2SYehuda Sadeh 12143d14c5d2SYehuda Sadeh /* (re)alloc osd arrays */ 12153d14c5d2SYehuda Sadeh err = osdmap_set_max_osd(map, max); 1216597b52f6SIlya Dryomov if (err) 12173d14c5d2SYehuda Sadeh goto bad; 12183d14c5d2SYehuda Sadeh 12192d88b2e0SIlya Dryomov /* osd_state, osd_weight, osd_addrs->client_addr */ 12203d14c5d2SYehuda Sadeh ceph_decode_need(p, end, 3*sizeof(u32) + 12213d14c5d2SYehuda Sadeh map->max_osd*(1 + sizeof(*map->osd_weight) + 1222597b52f6SIlya Dryomov sizeof(*map->osd_addr)), e_inval); 1223597b52f6SIlya Dryomov 12242d88b2e0SIlya Dryomov if (ceph_decode_32(p) != map->max_osd) 12252d88b2e0SIlya Dryomov goto e_inval; 12262d88b2e0SIlya Dryomov 12273d14c5d2SYehuda Sadeh ceph_decode_copy(p, map->osd_state, map->max_osd); 12283d14c5d2SYehuda Sadeh 12292d88b2e0SIlya Dryomov if (ceph_decode_32(p) != map->max_osd) 12302d88b2e0SIlya Dryomov goto e_inval; 12312d88b2e0SIlya Dryomov 12323d14c5d2SYehuda Sadeh for (i = 0; i < map->max_osd; i++) 12333d14c5d2SYehuda Sadeh map->osd_weight[i] = ceph_decode_32(p); 12343d14c5d2SYehuda Sadeh 12352d88b2e0SIlya Dryomov if (ceph_decode_32(p) != map->max_osd) 12362d88b2e0SIlya Dryomov goto e_inval; 12372d88b2e0SIlya Dryomov 12383d14c5d2SYehuda Sadeh ceph_decode_copy(p, map->osd_addr, map->max_osd*sizeof(*map->osd_addr)); 12393d14c5d2SYehuda Sadeh for (i = 0; i < map->max_osd; i++) 12403d14c5d2SYehuda Sadeh ceph_decode_addr(&map->osd_addr[i]); 12413d14c5d2SYehuda Sadeh 12423d14c5d2SYehuda Sadeh /* pg_temp */ 124310db634eSIlya Dryomov err = decode_pg_temp(p, end, map); 1244d6c0dd6bSSage Weil if (err) 1245d6c0dd6bSSage Weil goto bad; 12463d14c5d2SYehuda Sadeh 1247d286de79SIlya Dryomov /* primary_temp */ 1248d286de79SIlya Dryomov if (struct_v >= 1) { 1249d286de79SIlya Dryomov err = decode_primary_temp(p, end, map); 1250d286de79SIlya Dryomov if (err) 1251d286de79SIlya Dryomov goto bad; 1252d286de79SIlya Dryomov } 1253d286de79SIlya Dryomov 125463a6993fSIlya Dryomov /* primary_affinity */ 125563a6993fSIlya Dryomov if (struct_v >= 2) { 125663a6993fSIlya Dryomov err = decode_primary_affinity(p, end, map); 125763a6993fSIlya Dryomov if (err) 125863a6993fSIlya Dryomov goto bad; 125963a6993fSIlya Dryomov } else { 126063a6993fSIlya Dryomov /* XXX can this happen? */ 126163a6993fSIlya Dryomov kfree(map->osd_primary_affinity); 126263a6993fSIlya Dryomov map->osd_primary_affinity = NULL; 126363a6993fSIlya Dryomov } 126463a6993fSIlya Dryomov 12653d14c5d2SYehuda Sadeh /* crush */ 1266597b52f6SIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 12671b6a78b5SIlya Dryomov err = osdmap_set_crush(map, crush_decode(*p, min(*p + len, end))); 12681b6a78b5SIlya Dryomov if (err) 12693d14c5d2SYehuda Sadeh goto bad; 12703d14c5d2SYehuda Sadeh 127138a8d560SIlya Dryomov /* ignore the rest */ 12723d14c5d2SYehuda Sadeh *p = end; 12733d14c5d2SYehuda Sadeh 127438a8d560SIlya Dryomov dout("full osdmap epoch %d max_osd %d\n", map->epoch, map->max_osd); 1275a2505d63SIlya Dryomov return 0; 12763d14c5d2SYehuda Sadeh 1277597b52f6SIlya Dryomov e_inval: 1278597b52f6SIlya Dryomov err = -EINVAL; 12793d14c5d2SYehuda Sadeh bad: 128038a8d560SIlya Dryomov pr_err("corrupt full osdmap (%d) epoch %d off %d (%p of %p-%p)\n", 128138a8d560SIlya Dryomov err, epoch, (int)(*p - start), *p, start, end); 128238a8d560SIlya Dryomov print_hex_dump(KERN_DEBUG, "osdmap: ", 128338a8d560SIlya Dryomov DUMP_PREFIX_OFFSET, 16, 1, 128438a8d560SIlya Dryomov start, end - start, true); 1285a2505d63SIlya Dryomov return err; 1286a2505d63SIlya Dryomov } 1287a2505d63SIlya Dryomov 1288a2505d63SIlya Dryomov /* 1289a2505d63SIlya Dryomov * Allocate and decode a full map. 1290a2505d63SIlya Dryomov */ 1291a2505d63SIlya Dryomov struct ceph_osdmap *ceph_osdmap_decode(void **p, void *end) 1292a2505d63SIlya Dryomov { 1293a2505d63SIlya Dryomov struct ceph_osdmap *map; 1294a2505d63SIlya Dryomov int ret; 1295a2505d63SIlya Dryomov 1296e5253a7bSIlya Dryomov map = ceph_osdmap_alloc(); 1297a2505d63SIlya Dryomov if (!map) 1298a2505d63SIlya Dryomov return ERR_PTR(-ENOMEM); 1299a2505d63SIlya Dryomov 1300a2505d63SIlya Dryomov ret = osdmap_decode(p, end, map); 1301a2505d63SIlya Dryomov if (ret) { 13023d14c5d2SYehuda Sadeh ceph_osdmap_destroy(map); 1303a2505d63SIlya Dryomov return ERR_PTR(ret); 1304a2505d63SIlya Dryomov } 1305a2505d63SIlya Dryomov 1306a2505d63SIlya Dryomov return map; 13073d14c5d2SYehuda Sadeh } 13083d14c5d2SYehuda Sadeh 13093d14c5d2SYehuda Sadeh /* 1310930c5328SIlya Dryomov * Encoding order is (new_up_client, new_state, new_weight). Need to 1311930c5328SIlya Dryomov * apply in the (new_weight, new_state, new_up_client) order, because 1312930c5328SIlya Dryomov * an incremental map may look like e.g. 1313930c5328SIlya Dryomov * 1314930c5328SIlya Dryomov * new_up_client: { osd=6, addr=... } # set osd_state and addr 1315930c5328SIlya Dryomov * new_state: { osd=6, xorstate=EXISTS } # clear osd_state 1316930c5328SIlya Dryomov */ 1317930c5328SIlya Dryomov static int decode_new_up_state_weight(void **p, void *end, 1318930c5328SIlya Dryomov struct ceph_osdmap *map) 1319930c5328SIlya Dryomov { 1320930c5328SIlya Dryomov void *new_up_client; 1321930c5328SIlya Dryomov void *new_state; 1322930c5328SIlya Dryomov void *new_weight_end; 1323930c5328SIlya Dryomov u32 len; 1324930c5328SIlya Dryomov 1325930c5328SIlya Dryomov new_up_client = *p; 1326930c5328SIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 1327930c5328SIlya Dryomov len *= sizeof(u32) + sizeof(struct ceph_entity_addr); 1328930c5328SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 1329930c5328SIlya Dryomov *p += len; 1330930c5328SIlya Dryomov 1331930c5328SIlya Dryomov new_state = *p; 1332930c5328SIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 1333930c5328SIlya Dryomov len *= sizeof(u32) + sizeof(u8); 1334930c5328SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 1335930c5328SIlya Dryomov *p += len; 1336930c5328SIlya Dryomov 1337930c5328SIlya Dryomov /* new_weight */ 1338930c5328SIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 1339930c5328SIlya Dryomov while (len--) { 1340930c5328SIlya Dryomov s32 osd; 1341930c5328SIlya Dryomov u32 w; 1342930c5328SIlya Dryomov 1343930c5328SIlya Dryomov ceph_decode_need(p, end, 2*sizeof(u32), e_inval); 1344930c5328SIlya Dryomov osd = ceph_decode_32(p); 1345930c5328SIlya Dryomov w = ceph_decode_32(p); 1346930c5328SIlya Dryomov BUG_ON(osd >= map->max_osd); 1347930c5328SIlya Dryomov pr_info("osd%d weight 0x%x %s\n", osd, w, 1348930c5328SIlya Dryomov w == CEPH_OSD_IN ? "(in)" : 1349930c5328SIlya Dryomov (w == CEPH_OSD_OUT ? "(out)" : "")); 1350930c5328SIlya Dryomov map->osd_weight[osd] = w; 1351930c5328SIlya Dryomov 1352930c5328SIlya Dryomov /* 1353930c5328SIlya Dryomov * If we are marking in, set the EXISTS, and clear the 1354930c5328SIlya Dryomov * AUTOOUT and NEW bits. 1355930c5328SIlya Dryomov */ 1356930c5328SIlya Dryomov if (w) { 1357930c5328SIlya Dryomov map->osd_state[osd] |= CEPH_OSD_EXISTS; 1358930c5328SIlya Dryomov map->osd_state[osd] &= ~(CEPH_OSD_AUTOOUT | 1359930c5328SIlya Dryomov CEPH_OSD_NEW); 1360930c5328SIlya Dryomov } 1361930c5328SIlya Dryomov } 1362930c5328SIlya Dryomov new_weight_end = *p; 1363930c5328SIlya Dryomov 1364930c5328SIlya Dryomov /* new_state (up/down) */ 1365930c5328SIlya Dryomov *p = new_state; 1366930c5328SIlya Dryomov len = ceph_decode_32(p); 1367930c5328SIlya Dryomov while (len--) { 1368930c5328SIlya Dryomov s32 osd; 1369930c5328SIlya Dryomov u8 xorstate; 1370930c5328SIlya Dryomov int ret; 1371930c5328SIlya Dryomov 1372930c5328SIlya Dryomov osd = ceph_decode_32(p); 1373930c5328SIlya Dryomov xorstate = ceph_decode_8(p); 1374930c5328SIlya Dryomov if (xorstate == 0) 1375930c5328SIlya Dryomov xorstate = CEPH_OSD_UP; 1376930c5328SIlya Dryomov BUG_ON(osd >= map->max_osd); 1377930c5328SIlya Dryomov if ((map->osd_state[osd] & CEPH_OSD_UP) && 1378930c5328SIlya Dryomov (xorstate & CEPH_OSD_UP)) 1379930c5328SIlya Dryomov pr_info("osd%d down\n", osd); 1380930c5328SIlya Dryomov if ((map->osd_state[osd] & CEPH_OSD_EXISTS) && 1381930c5328SIlya Dryomov (xorstate & CEPH_OSD_EXISTS)) { 1382930c5328SIlya Dryomov pr_info("osd%d does not exist\n", osd); 1383930c5328SIlya Dryomov ret = set_primary_affinity(map, osd, 1384930c5328SIlya Dryomov CEPH_OSD_DEFAULT_PRIMARY_AFFINITY); 1385930c5328SIlya Dryomov if (ret) 1386930c5328SIlya Dryomov return ret; 1387930c5328SIlya Dryomov memset(map->osd_addr + osd, 0, sizeof(*map->osd_addr)); 1388930c5328SIlya Dryomov map->osd_state[osd] = 0; 1389930c5328SIlya Dryomov } else { 1390930c5328SIlya Dryomov map->osd_state[osd] ^= xorstate; 1391930c5328SIlya Dryomov } 1392930c5328SIlya Dryomov } 1393930c5328SIlya Dryomov 1394930c5328SIlya Dryomov /* new_up_client */ 1395930c5328SIlya Dryomov *p = new_up_client; 1396930c5328SIlya Dryomov len = ceph_decode_32(p); 1397930c5328SIlya Dryomov while (len--) { 1398930c5328SIlya Dryomov s32 osd; 1399930c5328SIlya Dryomov struct ceph_entity_addr addr; 1400930c5328SIlya Dryomov 1401930c5328SIlya Dryomov osd = ceph_decode_32(p); 1402930c5328SIlya Dryomov ceph_decode_copy(p, &addr, sizeof(addr)); 1403930c5328SIlya Dryomov ceph_decode_addr(&addr); 1404930c5328SIlya Dryomov BUG_ON(osd >= map->max_osd); 1405930c5328SIlya Dryomov pr_info("osd%d up\n", osd); 1406930c5328SIlya Dryomov map->osd_state[osd] |= CEPH_OSD_EXISTS | CEPH_OSD_UP; 1407930c5328SIlya Dryomov map->osd_addr[osd] = addr; 1408930c5328SIlya Dryomov } 1409930c5328SIlya Dryomov 1410930c5328SIlya Dryomov *p = new_weight_end; 1411930c5328SIlya Dryomov return 0; 1412930c5328SIlya Dryomov 1413930c5328SIlya Dryomov e_inval: 1414930c5328SIlya Dryomov return -EINVAL; 1415930c5328SIlya Dryomov } 1416930c5328SIlya Dryomov 1417930c5328SIlya Dryomov /* 14183d14c5d2SYehuda Sadeh * decode and apply an incremental map update. 14193d14c5d2SYehuda Sadeh */ 14203d14c5d2SYehuda Sadeh struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end, 14210c0a8de1SIlya Dryomov struct ceph_osdmap *map) 14223d14c5d2SYehuda Sadeh { 14233d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 14243d14c5d2SYehuda Sadeh u32 epoch = 0; 14253d14c5d2SYehuda Sadeh struct ceph_timespec modified; 14264f6a7e5eSSage Weil s32 len; 14274f6a7e5eSSage Weil u64 pool; 14284f6a7e5eSSage Weil __s64 new_pool_max; 14294f6a7e5eSSage Weil __s32 new_flags, max; 14303d14c5d2SYehuda Sadeh void *start = *p; 143186f1742bSIlya Dryomov int err; 1432ec7af972SIlya Dryomov u8 struct_v; 14333d14c5d2SYehuda Sadeh 143438a8d560SIlya Dryomov dout("%s %p to %p len %d\n", __func__, *p, end, (int)(end - *p)); 143538a8d560SIlya Dryomov 1436ec7af972SIlya Dryomov err = get_osdmap_client_data_v(p, end, "inc", &struct_v); 1437ec7af972SIlya Dryomov if (err) 1438ec7af972SIlya Dryomov goto bad; 14393d14c5d2SYehuda Sadeh 144053bbaba9SIlya Dryomov /* fsid, epoch, modified, new_pool_max, new_flags */ 144153bbaba9SIlya Dryomov ceph_decode_need(p, end, sizeof(fsid) + sizeof(u32) + sizeof(modified) + 144253bbaba9SIlya Dryomov sizeof(u64) + sizeof(u32), e_inval); 14433d14c5d2SYehuda Sadeh ceph_decode_copy(p, &fsid, sizeof(fsid)); 14443d14c5d2SYehuda Sadeh epoch = ceph_decode_32(p); 14453d14c5d2SYehuda Sadeh BUG_ON(epoch != map->epoch+1); 14463d14c5d2SYehuda Sadeh ceph_decode_copy(p, &modified, sizeof(modified)); 14474f6a7e5eSSage Weil new_pool_max = ceph_decode_64(p); 14483d14c5d2SYehuda Sadeh new_flags = ceph_decode_32(p); 14493d14c5d2SYehuda Sadeh 14503d14c5d2SYehuda Sadeh /* full map? */ 145186f1742bSIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 14523d14c5d2SYehuda Sadeh if (len > 0) { 14533d14c5d2SYehuda Sadeh dout("apply_incremental full map len %d, %p to %p\n", 14543d14c5d2SYehuda Sadeh len, *p, end); 1455a2505d63SIlya Dryomov return ceph_osdmap_decode(p, min(*p+len, end)); 14563d14c5d2SYehuda Sadeh } 14573d14c5d2SYehuda Sadeh 14583d14c5d2SYehuda Sadeh /* new crush? */ 145986f1742bSIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 14603d14c5d2SYehuda Sadeh if (len > 0) { 14611b6a78b5SIlya Dryomov err = osdmap_set_crush(map, 14621b6a78b5SIlya Dryomov crush_decode(*p, min(*p + len, end))); 14631b6a78b5SIlya Dryomov if (err) 146486f1742bSIlya Dryomov goto bad; 14653d14c5d2SYehuda Sadeh *p += len; 14663d14c5d2SYehuda Sadeh } 14673d14c5d2SYehuda Sadeh 14683d14c5d2SYehuda Sadeh /* new flags? */ 14693d14c5d2SYehuda Sadeh if (new_flags >= 0) 14703d14c5d2SYehuda Sadeh map->flags = new_flags; 14713d14c5d2SYehuda Sadeh if (new_pool_max >= 0) 14723d14c5d2SYehuda Sadeh map->pool_max = new_pool_max; 14733d14c5d2SYehuda Sadeh 14743d14c5d2SYehuda Sadeh /* new max? */ 147553bbaba9SIlya Dryomov ceph_decode_32_safe(p, end, max, e_inval); 14763d14c5d2SYehuda Sadeh if (max >= 0) { 14773d14c5d2SYehuda Sadeh err = osdmap_set_max_osd(map, max); 147886f1742bSIlya Dryomov if (err) 14793d14c5d2SYehuda Sadeh goto bad; 14803d14c5d2SYehuda Sadeh } 14813d14c5d2SYehuda Sadeh 14823d14c5d2SYehuda Sadeh map->epoch++; 148331456665SSage Weil map->modified = modified; 14843d14c5d2SYehuda Sadeh 1485433fbdd3SIlya Dryomov /* new_pools */ 1486433fbdd3SIlya Dryomov err = decode_new_pools(p, end, map); 1487433fbdd3SIlya Dryomov if (err) 14883d14c5d2SYehuda Sadeh goto bad; 14899464d008SIlya Dryomov 14900f70c7eeSIlya Dryomov /* new_pool_names */ 14910f70c7eeSIlya Dryomov err = decode_pool_names(p, end, map); 149286f1742bSIlya Dryomov if (err) 14933d14c5d2SYehuda Sadeh goto bad; 14943d14c5d2SYehuda Sadeh 14953d14c5d2SYehuda Sadeh /* old_pool */ 149686f1742bSIlya Dryomov ceph_decode_32_safe(p, end, len, e_inval); 14973d14c5d2SYehuda Sadeh while (len--) { 14983d14c5d2SYehuda Sadeh struct ceph_pg_pool_info *pi; 14993d14c5d2SYehuda Sadeh 150086f1742bSIlya Dryomov ceph_decode_64_safe(p, end, pool, e_inval); 15013d14c5d2SYehuda Sadeh pi = __lookup_pg_pool(&map->pg_pools, pool); 15023d14c5d2SYehuda Sadeh if (pi) 15033d14c5d2SYehuda Sadeh __remove_pg_pool(&map->pg_pools, pi); 15043d14c5d2SYehuda Sadeh } 15053d14c5d2SYehuda Sadeh 1506930c5328SIlya Dryomov /* new_up_client, new_state, new_weight */ 1507930c5328SIlya Dryomov err = decode_new_up_state_weight(p, end, map); 1508930c5328SIlya Dryomov if (err) 1509930c5328SIlya Dryomov goto bad; 15103d14c5d2SYehuda Sadeh 15113d14c5d2SYehuda Sadeh /* new_pg_temp */ 151210db634eSIlya Dryomov err = decode_new_pg_temp(p, end, map); 1513d6c0dd6bSSage Weil if (err) 1514d6c0dd6bSSage Weil goto bad; 15153d14c5d2SYehuda Sadeh 1516d286de79SIlya Dryomov /* new_primary_temp */ 1517d286de79SIlya Dryomov if (struct_v >= 1) { 1518d286de79SIlya Dryomov err = decode_new_primary_temp(p, end, map); 1519d286de79SIlya Dryomov if (err) 1520d286de79SIlya Dryomov goto bad; 1521d286de79SIlya Dryomov } 1522d286de79SIlya Dryomov 152363a6993fSIlya Dryomov /* new_primary_affinity */ 152463a6993fSIlya Dryomov if (struct_v >= 2) { 152563a6993fSIlya Dryomov err = decode_new_primary_affinity(p, end, map); 152663a6993fSIlya Dryomov if (err) 152763a6993fSIlya Dryomov goto bad; 152863a6993fSIlya Dryomov } 152963a6993fSIlya Dryomov 15303d14c5d2SYehuda Sadeh /* ignore the rest */ 15313d14c5d2SYehuda Sadeh *p = end; 153238a8d560SIlya Dryomov 153338a8d560SIlya Dryomov dout("inc osdmap epoch %d max_osd %d\n", map->epoch, map->max_osd); 15343d14c5d2SYehuda Sadeh return map; 15353d14c5d2SYehuda Sadeh 153686f1742bSIlya Dryomov e_inval: 153786f1742bSIlya Dryomov err = -EINVAL; 15383d14c5d2SYehuda Sadeh bad: 153938a8d560SIlya Dryomov pr_err("corrupt inc osdmap (%d) epoch %d off %d (%p of %p-%p)\n", 154038a8d560SIlya Dryomov err, epoch, (int)(*p - start), *p, start, end); 15413d14c5d2SYehuda Sadeh print_hex_dump(KERN_DEBUG, "osdmap: ", 15423d14c5d2SYehuda Sadeh DUMP_PREFIX_OFFSET, 16, 1, 15433d14c5d2SYehuda Sadeh start, end - start, true); 15443d14c5d2SYehuda Sadeh return ERR_PTR(err); 15453d14c5d2SYehuda Sadeh } 15463d14c5d2SYehuda Sadeh 154730c156d9SYan, Zheng void ceph_oloc_copy(struct ceph_object_locator *dest, 154830c156d9SYan, Zheng const struct ceph_object_locator *src) 154930c156d9SYan, Zheng { 1550ca35ffeaSIlya Dryomov ceph_oloc_destroy(dest); 155130c156d9SYan, Zheng 155230c156d9SYan, Zheng dest->pool = src->pool; 155330c156d9SYan, Zheng if (src->pool_ns) 155430c156d9SYan, Zheng dest->pool_ns = ceph_get_string(src->pool_ns); 1555ca35ffeaSIlya Dryomov else 1556ca35ffeaSIlya Dryomov dest->pool_ns = NULL; 155730c156d9SYan, Zheng } 155830c156d9SYan, Zheng EXPORT_SYMBOL(ceph_oloc_copy); 155930c156d9SYan, Zheng 156030c156d9SYan, Zheng void ceph_oloc_destroy(struct ceph_object_locator *oloc) 156130c156d9SYan, Zheng { 156230c156d9SYan, Zheng ceph_put_string(oloc->pool_ns); 156330c156d9SYan, Zheng } 156430c156d9SYan, Zheng EXPORT_SYMBOL(ceph_oloc_destroy); 156530c156d9SYan, Zheng 1566d30291b9SIlya Dryomov void ceph_oid_copy(struct ceph_object_id *dest, 1567d30291b9SIlya Dryomov const struct ceph_object_id *src) 1568d30291b9SIlya Dryomov { 1569ca35ffeaSIlya Dryomov ceph_oid_destroy(dest); 15703d14c5d2SYehuda Sadeh 1571d30291b9SIlya Dryomov if (src->name != src->inline_name) { 1572d30291b9SIlya Dryomov /* very rare, see ceph_object_id definition */ 1573d30291b9SIlya Dryomov dest->name = kmalloc(src->name_len + 1, 1574d30291b9SIlya Dryomov GFP_NOIO | __GFP_NOFAIL); 1575ca35ffeaSIlya Dryomov } else { 1576ca35ffeaSIlya Dryomov dest->name = dest->inline_name; 1577d30291b9SIlya Dryomov } 1578d30291b9SIlya Dryomov memcpy(dest->name, src->name, src->name_len + 1); 1579d30291b9SIlya Dryomov dest->name_len = src->name_len; 1580d30291b9SIlya Dryomov } 1581d30291b9SIlya Dryomov EXPORT_SYMBOL(ceph_oid_copy); 1582d30291b9SIlya Dryomov 1583d30291b9SIlya Dryomov static __printf(2, 0) 1584d30291b9SIlya Dryomov int oid_printf_vargs(struct ceph_object_id *oid, const char *fmt, va_list ap) 1585d30291b9SIlya Dryomov { 1586d30291b9SIlya Dryomov int len; 1587d30291b9SIlya Dryomov 1588d30291b9SIlya Dryomov WARN_ON(!ceph_oid_empty(oid)); 1589d30291b9SIlya Dryomov 1590d30291b9SIlya Dryomov len = vsnprintf(oid->inline_name, sizeof(oid->inline_name), fmt, ap); 1591d30291b9SIlya Dryomov if (len >= sizeof(oid->inline_name)) 1592d30291b9SIlya Dryomov return len; 1593d30291b9SIlya Dryomov 1594d30291b9SIlya Dryomov oid->name_len = len; 1595d30291b9SIlya Dryomov return 0; 1596d30291b9SIlya Dryomov } 1597d30291b9SIlya Dryomov 1598d30291b9SIlya Dryomov /* 1599d30291b9SIlya Dryomov * If oid doesn't fit into inline buffer, BUG. 1600d30291b9SIlya Dryomov */ 1601d30291b9SIlya Dryomov void ceph_oid_printf(struct ceph_object_id *oid, const char *fmt, ...) 1602d30291b9SIlya Dryomov { 1603d30291b9SIlya Dryomov va_list ap; 1604d30291b9SIlya Dryomov 1605d30291b9SIlya Dryomov va_start(ap, fmt); 1606d30291b9SIlya Dryomov BUG_ON(oid_printf_vargs(oid, fmt, ap)); 1607d30291b9SIlya Dryomov va_end(ap); 1608d30291b9SIlya Dryomov } 1609d30291b9SIlya Dryomov EXPORT_SYMBOL(ceph_oid_printf); 1610d30291b9SIlya Dryomov 1611d30291b9SIlya Dryomov static __printf(3, 0) 1612d30291b9SIlya Dryomov int oid_aprintf_vargs(struct ceph_object_id *oid, gfp_t gfp, 1613d30291b9SIlya Dryomov const char *fmt, va_list ap) 1614d30291b9SIlya Dryomov { 1615d30291b9SIlya Dryomov va_list aq; 1616d30291b9SIlya Dryomov int len; 1617d30291b9SIlya Dryomov 1618d30291b9SIlya Dryomov va_copy(aq, ap); 1619d30291b9SIlya Dryomov len = oid_printf_vargs(oid, fmt, aq); 1620d30291b9SIlya Dryomov va_end(aq); 1621d30291b9SIlya Dryomov 1622d30291b9SIlya Dryomov if (len) { 1623d30291b9SIlya Dryomov char *external_name; 1624d30291b9SIlya Dryomov 1625d30291b9SIlya Dryomov external_name = kmalloc(len + 1, gfp); 1626d30291b9SIlya Dryomov if (!external_name) 1627d30291b9SIlya Dryomov return -ENOMEM; 1628d30291b9SIlya Dryomov 1629d30291b9SIlya Dryomov oid->name = external_name; 1630d30291b9SIlya Dryomov WARN_ON(vsnprintf(oid->name, len + 1, fmt, ap) != len); 1631d30291b9SIlya Dryomov oid->name_len = len; 1632d30291b9SIlya Dryomov } 1633d30291b9SIlya Dryomov 1634d30291b9SIlya Dryomov return 0; 1635d30291b9SIlya Dryomov } 1636d30291b9SIlya Dryomov 1637d30291b9SIlya Dryomov /* 1638d30291b9SIlya Dryomov * If oid doesn't fit into inline buffer, allocate. 1639d30291b9SIlya Dryomov */ 1640d30291b9SIlya Dryomov int ceph_oid_aprintf(struct ceph_object_id *oid, gfp_t gfp, 1641d30291b9SIlya Dryomov const char *fmt, ...) 1642d30291b9SIlya Dryomov { 1643d30291b9SIlya Dryomov va_list ap; 1644d30291b9SIlya Dryomov int ret; 1645d30291b9SIlya Dryomov 1646d30291b9SIlya Dryomov va_start(ap, fmt); 1647d30291b9SIlya Dryomov ret = oid_aprintf_vargs(oid, gfp, fmt, ap); 1648d30291b9SIlya Dryomov va_end(ap); 1649d30291b9SIlya Dryomov 1650d30291b9SIlya Dryomov return ret; 1651d30291b9SIlya Dryomov } 1652d30291b9SIlya Dryomov EXPORT_SYMBOL(ceph_oid_aprintf); 1653d30291b9SIlya Dryomov 1654d30291b9SIlya Dryomov void ceph_oid_destroy(struct ceph_object_id *oid) 1655d30291b9SIlya Dryomov { 1656d30291b9SIlya Dryomov if (oid->name != oid->inline_name) 1657d30291b9SIlya Dryomov kfree(oid->name); 1658d30291b9SIlya Dryomov } 1659d30291b9SIlya Dryomov EXPORT_SYMBOL(ceph_oid_destroy); 16603d14c5d2SYehuda Sadeh 166163244fa1SIlya Dryomov /* 166263244fa1SIlya Dryomov * osds only 166363244fa1SIlya Dryomov */ 166463244fa1SIlya Dryomov static bool __osds_equal(const struct ceph_osds *lhs, 166563244fa1SIlya Dryomov const struct ceph_osds *rhs) 166663244fa1SIlya Dryomov { 166763244fa1SIlya Dryomov if (lhs->size == rhs->size && 166863244fa1SIlya Dryomov !memcmp(lhs->osds, rhs->osds, rhs->size * sizeof(rhs->osds[0]))) 166963244fa1SIlya Dryomov return true; 167063244fa1SIlya Dryomov 167163244fa1SIlya Dryomov return false; 167263244fa1SIlya Dryomov } 167363244fa1SIlya Dryomov 167463244fa1SIlya Dryomov /* 167563244fa1SIlya Dryomov * osds + primary 167663244fa1SIlya Dryomov */ 167763244fa1SIlya Dryomov static bool osds_equal(const struct ceph_osds *lhs, 167863244fa1SIlya Dryomov const struct ceph_osds *rhs) 167963244fa1SIlya Dryomov { 168063244fa1SIlya Dryomov if (__osds_equal(lhs, rhs) && 168163244fa1SIlya Dryomov lhs->primary == rhs->primary) 168263244fa1SIlya Dryomov return true; 168363244fa1SIlya Dryomov 168463244fa1SIlya Dryomov return false; 168563244fa1SIlya Dryomov } 168663244fa1SIlya Dryomov 16876f3bfd45SIlya Dryomov static bool osds_valid(const struct ceph_osds *set) 16886f3bfd45SIlya Dryomov { 16896f3bfd45SIlya Dryomov /* non-empty set */ 16906f3bfd45SIlya Dryomov if (set->size > 0 && set->primary >= 0) 16916f3bfd45SIlya Dryomov return true; 16926f3bfd45SIlya Dryomov 16936f3bfd45SIlya Dryomov /* empty can_shift_osds set */ 16946f3bfd45SIlya Dryomov if (!set->size && set->primary == -1) 16956f3bfd45SIlya Dryomov return true; 16966f3bfd45SIlya Dryomov 16976f3bfd45SIlya Dryomov /* empty !can_shift_osds set - all NONE */ 16986f3bfd45SIlya Dryomov if (set->size > 0 && set->primary == -1) { 16996f3bfd45SIlya Dryomov int i; 17006f3bfd45SIlya Dryomov 17016f3bfd45SIlya Dryomov for (i = 0; i < set->size; i++) { 17026f3bfd45SIlya Dryomov if (set->osds[i] != CRUSH_ITEM_NONE) 17036f3bfd45SIlya Dryomov break; 17046f3bfd45SIlya Dryomov } 17056f3bfd45SIlya Dryomov if (i == set->size) 17066f3bfd45SIlya Dryomov return true; 17076f3bfd45SIlya Dryomov } 17086f3bfd45SIlya Dryomov 17096f3bfd45SIlya Dryomov return false; 17106f3bfd45SIlya Dryomov } 17116f3bfd45SIlya Dryomov 17126f3bfd45SIlya Dryomov void ceph_osds_copy(struct ceph_osds *dest, const struct ceph_osds *src) 17136f3bfd45SIlya Dryomov { 17146f3bfd45SIlya Dryomov memcpy(dest->osds, src->osds, src->size * sizeof(src->osds[0])); 17156f3bfd45SIlya Dryomov dest->size = src->size; 17166f3bfd45SIlya Dryomov dest->primary = src->primary; 17176f3bfd45SIlya Dryomov } 17186f3bfd45SIlya Dryomov 171963244fa1SIlya Dryomov static bool is_split(const struct ceph_pg *pgid, 172063244fa1SIlya Dryomov u32 old_pg_num, 172163244fa1SIlya Dryomov u32 new_pg_num) 172263244fa1SIlya Dryomov { 172363244fa1SIlya Dryomov int old_bits = calc_bits_of(old_pg_num); 172463244fa1SIlya Dryomov int old_mask = (1 << old_bits) - 1; 172563244fa1SIlya Dryomov int n; 172663244fa1SIlya Dryomov 172763244fa1SIlya Dryomov WARN_ON(pgid->seed >= old_pg_num); 172863244fa1SIlya Dryomov if (new_pg_num <= old_pg_num) 172963244fa1SIlya Dryomov return false; 173063244fa1SIlya Dryomov 173163244fa1SIlya Dryomov for (n = 1; ; n++) { 173263244fa1SIlya Dryomov int next_bit = n << (old_bits - 1); 173363244fa1SIlya Dryomov u32 s = next_bit | pgid->seed; 173463244fa1SIlya Dryomov 173563244fa1SIlya Dryomov if (s < old_pg_num || s == pgid->seed) 173663244fa1SIlya Dryomov continue; 173763244fa1SIlya Dryomov if (s >= new_pg_num) 173863244fa1SIlya Dryomov break; 173963244fa1SIlya Dryomov 174063244fa1SIlya Dryomov s = ceph_stable_mod(s, old_pg_num, old_mask); 174163244fa1SIlya Dryomov if (s == pgid->seed) 174263244fa1SIlya Dryomov return true; 174363244fa1SIlya Dryomov } 174463244fa1SIlya Dryomov 174563244fa1SIlya Dryomov return false; 174663244fa1SIlya Dryomov } 174763244fa1SIlya Dryomov 174863244fa1SIlya Dryomov bool ceph_is_new_interval(const struct ceph_osds *old_acting, 174963244fa1SIlya Dryomov const struct ceph_osds *new_acting, 175063244fa1SIlya Dryomov const struct ceph_osds *old_up, 175163244fa1SIlya Dryomov const struct ceph_osds *new_up, 175263244fa1SIlya Dryomov int old_size, 175363244fa1SIlya Dryomov int new_size, 175463244fa1SIlya Dryomov int old_min_size, 175563244fa1SIlya Dryomov int new_min_size, 175663244fa1SIlya Dryomov u32 old_pg_num, 175763244fa1SIlya Dryomov u32 new_pg_num, 175863244fa1SIlya Dryomov bool old_sort_bitwise, 175963244fa1SIlya Dryomov bool new_sort_bitwise, 176063244fa1SIlya Dryomov const struct ceph_pg *pgid) 176163244fa1SIlya Dryomov { 176263244fa1SIlya Dryomov return !osds_equal(old_acting, new_acting) || 176363244fa1SIlya Dryomov !osds_equal(old_up, new_up) || 176463244fa1SIlya Dryomov old_size != new_size || 176563244fa1SIlya Dryomov old_min_size != new_min_size || 176663244fa1SIlya Dryomov is_split(pgid, old_pg_num, new_pg_num) || 176763244fa1SIlya Dryomov old_sort_bitwise != new_sort_bitwise; 176863244fa1SIlya Dryomov } 176963244fa1SIlya Dryomov 177063244fa1SIlya Dryomov static int calc_pg_rank(int osd, const struct ceph_osds *acting) 177163244fa1SIlya Dryomov { 177263244fa1SIlya Dryomov int i; 177363244fa1SIlya Dryomov 177463244fa1SIlya Dryomov for (i = 0; i < acting->size; i++) { 177563244fa1SIlya Dryomov if (acting->osds[i] == osd) 177663244fa1SIlya Dryomov return i; 177763244fa1SIlya Dryomov } 177863244fa1SIlya Dryomov 177963244fa1SIlya Dryomov return -1; 178063244fa1SIlya Dryomov } 178163244fa1SIlya Dryomov 178263244fa1SIlya Dryomov static bool primary_changed(const struct ceph_osds *old_acting, 178363244fa1SIlya Dryomov const struct ceph_osds *new_acting) 178463244fa1SIlya Dryomov { 178563244fa1SIlya Dryomov if (!old_acting->size && !new_acting->size) 178663244fa1SIlya Dryomov return false; /* both still empty */ 178763244fa1SIlya Dryomov 178863244fa1SIlya Dryomov if (!old_acting->size ^ !new_acting->size) 178963244fa1SIlya Dryomov return true; /* was empty, now not, or vice versa */ 179063244fa1SIlya Dryomov 179163244fa1SIlya Dryomov if (old_acting->primary != new_acting->primary) 179263244fa1SIlya Dryomov return true; /* primary changed */ 179363244fa1SIlya Dryomov 179463244fa1SIlya Dryomov if (calc_pg_rank(old_acting->primary, old_acting) != 179563244fa1SIlya Dryomov calc_pg_rank(new_acting->primary, new_acting)) 179663244fa1SIlya Dryomov return true; 179763244fa1SIlya Dryomov 179863244fa1SIlya Dryomov return false; /* same primary (tho replicas may have changed) */ 179963244fa1SIlya Dryomov } 180063244fa1SIlya Dryomov 180163244fa1SIlya Dryomov bool ceph_osds_changed(const struct ceph_osds *old_acting, 180263244fa1SIlya Dryomov const struct ceph_osds *new_acting, 180363244fa1SIlya Dryomov bool any_change) 180463244fa1SIlya Dryomov { 180563244fa1SIlya Dryomov if (primary_changed(old_acting, new_acting)) 180663244fa1SIlya Dryomov return true; 180763244fa1SIlya Dryomov 180863244fa1SIlya Dryomov if (any_change && !__osds_equal(old_acting, new_acting)) 180963244fa1SIlya Dryomov return true; 181063244fa1SIlya Dryomov 181163244fa1SIlya Dryomov return false; 181263244fa1SIlya Dryomov } 181363244fa1SIlya Dryomov 18143d14c5d2SYehuda Sadeh /* 18153d14c5d2SYehuda Sadeh * calculate file layout from given offset, length. 18163d14c5d2SYehuda Sadeh * fill in correct oid, logical length, and object extent 18173d14c5d2SYehuda Sadeh * offset, length. 18183d14c5d2SYehuda Sadeh * 18193d14c5d2SYehuda Sadeh * for now, we write only a single su, until we can 18203d14c5d2SYehuda Sadeh * pass a stride back to the caller. 18213d14c5d2SYehuda Sadeh */ 1822d63b77f4SSage Weil int ceph_calc_file_object_mapping(struct ceph_file_layout *layout, 1823e8afad65SAlex Elder u64 off, u64 len, 18243d14c5d2SYehuda Sadeh u64 *ono, 18253d14c5d2SYehuda Sadeh u64 *oxoff, u64 *oxlen) 18263d14c5d2SYehuda Sadeh { 18277627151eSYan, Zheng u32 osize = layout->object_size; 18287627151eSYan, Zheng u32 su = layout->stripe_unit; 18297627151eSYan, Zheng u32 sc = layout->stripe_count; 18303d14c5d2SYehuda Sadeh u32 bl, stripeno, stripepos, objsetno; 18313d14c5d2SYehuda Sadeh u32 su_per_object; 18323d14c5d2SYehuda Sadeh u64 t, su_offset; 18333d14c5d2SYehuda Sadeh 1834e8afad65SAlex Elder dout("mapping %llu~%llu osize %u fl_su %u\n", off, len, 18353d14c5d2SYehuda Sadeh osize, su); 1836d63b77f4SSage Weil if (su == 0 || sc == 0) 1837d63b77f4SSage Weil goto invalid; 18383d14c5d2SYehuda Sadeh su_per_object = osize / su; 1839d63b77f4SSage Weil if (su_per_object == 0) 1840d63b77f4SSage Weil goto invalid; 18413d14c5d2SYehuda Sadeh dout("osize %u / su %u = su_per_object %u\n", osize, su, 18423d14c5d2SYehuda Sadeh su_per_object); 18433d14c5d2SYehuda Sadeh 1844d63b77f4SSage Weil if ((su & ~PAGE_MASK) != 0) 1845d63b77f4SSage Weil goto invalid; 1846d63b77f4SSage Weil 18473d14c5d2SYehuda Sadeh /* bl = *off / su; */ 18483d14c5d2SYehuda Sadeh t = off; 18493d14c5d2SYehuda Sadeh do_div(t, su); 18503d14c5d2SYehuda Sadeh bl = t; 18513d14c5d2SYehuda Sadeh dout("off %llu / su %u = bl %u\n", off, su, bl); 18523d14c5d2SYehuda Sadeh 18533d14c5d2SYehuda Sadeh stripeno = bl / sc; 18543d14c5d2SYehuda Sadeh stripepos = bl % sc; 18553d14c5d2SYehuda Sadeh objsetno = stripeno / su_per_object; 18563d14c5d2SYehuda Sadeh 18573d14c5d2SYehuda Sadeh *ono = objsetno * sc + stripepos; 185895c96174SEric Dumazet dout("objset %u * sc %u = ono %u\n", objsetno, sc, (unsigned int)*ono); 18593d14c5d2SYehuda Sadeh 18603d14c5d2SYehuda Sadeh /* *oxoff = *off % layout->fl_stripe_unit; # offset in su */ 18613d14c5d2SYehuda Sadeh t = off; 18623d14c5d2SYehuda Sadeh su_offset = do_div(t, su); 18633d14c5d2SYehuda Sadeh *oxoff = su_offset + (stripeno % su_per_object) * su; 18643d14c5d2SYehuda Sadeh 18653d14c5d2SYehuda Sadeh /* 18663d14c5d2SYehuda Sadeh * Calculate the length of the extent being written to the selected 1867e8afad65SAlex Elder * object. This is the minimum of the full length requested (len) or 18683d14c5d2SYehuda Sadeh * the remainder of the current stripe being written to. 18693d14c5d2SYehuda Sadeh */ 1870e8afad65SAlex Elder *oxlen = min_t(u64, len, su - su_offset); 18713d14c5d2SYehuda Sadeh 18723d14c5d2SYehuda Sadeh dout(" obj extent %llu~%llu\n", *oxoff, *oxlen); 1873d63b77f4SSage Weil return 0; 1874d63b77f4SSage Weil 1875d63b77f4SSage Weil invalid: 1876d63b77f4SSage Weil dout(" invalid layout\n"); 1877d63b77f4SSage Weil *ono = 0; 1878d63b77f4SSage Weil *oxoff = 0; 1879d63b77f4SSage Weil *oxlen = 0; 1880d63b77f4SSage Weil return -EINVAL; 18813d14c5d2SYehuda Sadeh } 18823d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_calc_file_object_mapping); 18833d14c5d2SYehuda Sadeh 18843d14c5d2SYehuda Sadeh /* 1885d9591f5eSIlya Dryomov * Map an object into a PG. 1886d9591f5eSIlya Dryomov * 1887d9591f5eSIlya Dryomov * Should only be called with target_oid and target_oloc (as opposed to 1888d9591f5eSIlya Dryomov * base_oid and base_oloc), since tiering isn't taken into account. 18893d14c5d2SYehuda Sadeh */ 1890d9591f5eSIlya Dryomov int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap, 18917c13cb64SIlya Dryomov struct ceph_object_id *oid, 1892d9591f5eSIlya Dryomov struct ceph_object_locator *oloc, 1893d9591f5eSIlya Dryomov struct ceph_pg *raw_pgid) 18943d14c5d2SYehuda Sadeh { 18957c13cb64SIlya Dryomov struct ceph_pg_pool_info *pi; 18963d14c5d2SYehuda Sadeh 1897d9591f5eSIlya Dryomov pi = ceph_pg_pool_by_id(osdmap, oloc->pool); 18987c13cb64SIlya Dryomov if (!pi) 1899d9591f5eSIlya Dryomov return -ENOENT; 19003d14c5d2SYehuda Sadeh 190130c156d9SYan, Zheng if (!oloc->pool_ns) { 1902d9591f5eSIlya Dryomov raw_pgid->pool = oloc->pool; 1903d9591f5eSIlya Dryomov raw_pgid->seed = ceph_str_hash(pi->object_hash, oid->name, 19047c13cb64SIlya Dryomov oid->name_len); 19054a3262b1SIlya Dryomov dout("%s %s -> raw_pgid %llu.%x\n", __func__, oid->name, 19064a3262b1SIlya Dryomov raw_pgid->pool, raw_pgid->seed); 190730c156d9SYan, Zheng } else { 190830c156d9SYan, Zheng char stack_buf[256]; 190930c156d9SYan, Zheng char *buf = stack_buf; 191030c156d9SYan, Zheng int nsl = oloc->pool_ns->len; 191130c156d9SYan, Zheng size_t total = nsl + 1 + oid->name_len; 191230c156d9SYan, Zheng 191330c156d9SYan, Zheng if (total > sizeof(stack_buf)) { 191430c156d9SYan, Zheng buf = kmalloc(total, GFP_NOIO); 191530c156d9SYan, Zheng if (!buf) 191630c156d9SYan, Zheng return -ENOMEM; 191730c156d9SYan, Zheng } 191830c156d9SYan, Zheng memcpy(buf, oloc->pool_ns->str, nsl); 191930c156d9SYan, Zheng buf[nsl] = '\037'; 192030c156d9SYan, Zheng memcpy(buf + nsl + 1, oid->name, oid->name_len); 192130c156d9SYan, Zheng raw_pgid->pool = oloc->pool; 192230c156d9SYan, Zheng raw_pgid->seed = ceph_str_hash(pi->object_hash, buf, total); 192330c156d9SYan, Zheng if (buf != stack_buf) 192430c156d9SYan, Zheng kfree(buf); 192530c156d9SYan, Zheng dout("%s %s ns %.*s -> raw_pgid %llu.%x\n", __func__, 192630c156d9SYan, Zheng oid->name, nsl, oloc->pool_ns->str, 192730c156d9SYan, Zheng raw_pgid->pool, raw_pgid->seed); 192830c156d9SYan, Zheng } 19293d14c5d2SYehuda Sadeh return 0; 19303d14c5d2SYehuda Sadeh } 1931d9591f5eSIlya Dryomov EXPORT_SYMBOL(ceph_object_locator_to_pg); 19323d14c5d2SYehuda Sadeh 19336f3bfd45SIlya Dryomov /* 19346f3bfd45SIlya Dryomov * Map a raw PG (full precision ps) into an actual PG. 19356f3bfd45SIlya Dryomov */ 19366f3bfd45SIlya Dryomov static void raw_pg_to_pg(struct ceph_pg_pool_info *pi, 19376f3bfd45SIlya Dryomov const struct ceph_pg *raw_pgid, 19386f3bfd45SIlya Dryomov struct ceph_pg *pgid) 19396f3bfd45SIlya Dryomov { 19406f3bfd45SIlya Dryomov pgid->pool = raw_pgid->pool; 19416f3bfd45SIlya Dryomov pgid->seed = ceph_stable_mod(raw_pgid->seed, pi->pg_num, 19426f3bfd45SIlya Dryomov pi->pg_num_mask); 19436f3bfd45SIlya Dryomov } 19446f3bfd45SIlya Dryomov 19456f3bfd45SIlya Dryomov /* 19466f3bfd45SIlya Dryomov * Map a raw PG (full precision ps) into a placement ps (placement 19476f3bfd45SIlya Dryomov * seed). Include pool id in that value so that different pools don't 19486f3bfd45SIlya Dryomov * use the same seeds. 19496f3bfd45SIlya Dryomov */ 19506f3bfd45SIlya Dryomov static u32 raw_pg_to_pps(struct ceph_pg_pool_info *pi, 19516f3bfd45SIlya Dryomov const struct ceph_pg *raw_pgid) 19526f3bfd45SIlya Dryomov { 19536f3bfd45SIlya Dryomov if (pi->flags & CEPH_POOL_FLAG_HASHPSPOOL) { 19546f3bfd45SIlya Dryomov /* hash pool id and seed so that pool PGs do not overlap */ 19556f3bfd45SIlya Dryomov return crush_hash32_2(CRUSH_HASH_RJENKINS1, 19566f3bfd45SIlya Dryomov ceph_stable_mod(raw_pgid->seed, 19576f3bfd45SIlya Dryomov pi->pgp_num, 19586f3bfd45SIlya Dryomov pi->pgp_num_mask), 19596f3bfd45SIlya Dryomov raw_pgid->pool); 19606f3bfd45SIlya Dryomov } else { 19616f3bfd45SIlya Dryomov /* 19626f3bfd45SIlya Dryomov * legacy behavior: add ps and pool together. this is 19636f3bfd45SIlya Dryomov * not a great approach because the PGs from each pool 19646f3bfd45SIlya Dryomov * will overlap on top of each other: 0.5 == 1.4 == 19656f3bfd45SIlya Dryomov * 2.3 == ... 19666f3bfd45SIlya Dryomov */ 19676f3bfd45SIlya Dryomov return ceph_stable_mod(raw_pgid->seed, pi->pgp_num, 19686f3bfd45SIlya Dryomov pi->pgp_num_mask) + 19696f3bfd45SIlya Dryomov (unsigned)raw_pgid->pool; 19706f3bfd45SIlya Dryomov } 19716f3bfd45SIlya Dryomov } 19726f3bfd45SIlya Dryomov 19739d521470SIlya Dryomov static int do_crush(struct ceph_osdmap *map, int ruleno, int x, 1974e8ef19c4SIlya Dryomov int *result, int result_max, 1975e8ef19c4SIlya Dryomov const __u32 *weight, int weight_max) 1976e8ef19c4SIlya Dryomov { 19779d521470SIlya Dryomov int r; 1978e8ef19c4SIlya Dryomov 19799d521470SIlya Dryomov BUG_ON(result_max > CEPH_PG_MAX_SIZE); 19809d521470SIlya Dryomov 1981743efcffSIlya Dryomov mutex_lock(&map->crush_workspace_mutex); 19829d521470SIlya Dryomov r = crush_do_rule(map->crush, ruleno, x, result, result_max, 1983743efcffSIlya Dryomov weight, weight_max, map->crush_workspace); 1984743efcffSIlya Dryomov mutex_unlock(&map->crush_workspace_mutex); 19859d521470SIlya Dryomov 19869d521470SIlya Dryomov return r; 1987e8ef19c4SIlya Dryomov } 1988e8ef19c4SIlya Dryomov 19893d14c5d2SYehuda Sadeh /* 19906f3bfd45SIlya Dryomov * Calculate raw set (CRUSH output) for given PG. The result may 19916f3bfd45SIlya Dryomov * contain nonexistent OSDs. ->primary is undefined for a raw set. 19922bd93d4dSIlya Dryomov * 19936f3bfd45SIlya Dryomov * Placement seed (CRUSH input) is returned through @ppps. 19942bd93d4dSIlya Dryomov */ 19956f3bfd45SIlya Dryomov static void pg_to_raw_osds(struct ceph_osdmap *osdmap, 19966f3bfd45SIlya Dryomov struct ceph_pg_pool_info *pi, 19976f3bfd45SIlya Dryomov const struct ceph_pg *raw_pgid, 19986f3bfd45SIlya Dryomov struct ceph_osds *raw, 19996f3bfd45SIlya Dryomov u32 *ppps) 20002bd93d4dSIlya Dryomov { 20016f3bfd45SIlya Dryomov u32 pps = raw_pg_to_pps(pi, raw_pgid); 20022bd93d4dSIlya Dryomov int ruleno; 20032bd93d4dSIlya Dryomov int len; 20042bd93d4dSIlya Dryomov 20056f3bfd45SIlya Dryomov ceph_osds_init(raw); 20066f3bfd45SIlya Dryomov if (ppps) 20076f3bfd45SIlya Dryomov *ppps = pps; 20086f3bfd45SIlya Dryomov 20096f3bfd45SIlya Dryomov ruleno = crush_find_rule(osdmap->crush, pi->crush_ruleset, pi->type, 20106f3bfd45SIlya Dryomov pi->size); 20112bd93d4dSIlya Dryomov if (ruleno < 0) { 20122bd93d4dSIlya Dryomov pr_err("no crush rule: pool %lld ruleset %d type %d size %d\n", 20136f3bfd45SIlya Dryomov pi->id, pi->crush_ruleset, pi->type, pi->size); 20146f3bfd45SIlya Dryomov return; 20152bd93d4dSIlya Dryomov } 20162bd93d4dSIlya Dryomov 2017ef9324bbSIlya Dryomov if (pi->size > ARRAY_SIZE(raw->osds)) { 2018ef9324bbSIlya Dryomov pr_err_ratelimited("pool %lld ruleset %d type %d too wide: size %d > %zu\n", 2019ef9324bbSIlya Dryomov pi->id, pi->crush_ruleset, pi->type, pi->size, 2020ef9324bbSIlya Dryomov ARRAY_SIZE(raw->osds)); 2021ef9324bbSIlya Dryomov return; 2022ef9324bbSIlya Dryomov } 2023ef9324bbSIlya Dryomov 2024ef9324bbSIlya Dryomov len = do_crush(osdmap, ruleno, pps, raw->osds, pi->size, 20252bd93d4dSIlya Dryomov osdmap->osd_weight, osdmap->max_osd); 20262bd93d4dSIlya Dryomov if (len < 0) { 20272bd93d4dSIlya Dryomov pr_err("error %d from crush rule %d: pool %lld ruleset %d type %d size %d\n", 20286f3bfd45SIlya Dryomov len, ruleno, pi->id, pi->crush_ruleset, pi->type, 20296f3bfd45SIlya Dryomov pi->size); 20306f3bfd45SIlya Dryomov return; 20312bd93d4dSIlya Dryomov } 20322bd93d4dSIlya Dryomov 20336f3bfd45SIlya Dryomov raw->size = len; 20342bd93d4dSIlya Dryomov } 20352bd93d4dSIlya Dryomov 20362bd93d4dSIlya Dryomov /* 20376f3bfd45SIlya Dryomov * Given raw set, calculate up set and up primary. By definition of an 20386f3bfd45SIlya Dryomov * up set, the result won't contain nonexistent or down OSDs. 20392bd93d4dSIlya Dryomov * 20406f3bfd45SIlya Dryomov * This is done in-place - on return @set is the up set. If it's 20416f3bfd45SIlya Dryomov * empty, ->primary will remain undefined. 20422bd93d4dSIlya Dryomov */ 20436f3bfd45SIlya Dryomov static void raw_to_up_osds(struct ceph_osdmap *osdmap, 20446f3bfd45SIlya Dryomov struct ceph_pg_pool_info *pi, 20456f3bfd45SIlya Dryomov struct ceph_osds *set) 20462bd93d4dSIlya Dryomov { 20472bd93d4dSIlya Dryomov int i; 20482bd93d4dSIlya Dryomov 20496f3bfd45SIlya Dryomov /* ->primary is undefined for a raw set */ 20506f3bfd45SIlya Dryomov BUG_ON(set->primary != -1); 20516f3bfd45SIlya Dryomov 20526f3bfd45SIlya Dryomov if (ceph_can_shift_osds(pi)) { 20532bd93d4dSIlya Dryomov int removed = 0; 20542bd93d4dSIlya Dryomov 20556f3bfd45SIlya Dryomov /* shift left */ 20566f3bfd45SIlya Dryomov for (i = 0; i < set->size; i++) { 20576f3bfd45SIlya Dryomov if (ceph_osd_is_down(osdmap, set->osds[i])) { 20582bd93d4dSIlya Dryomov removed++; 20592bd93d4dSIlya Dryomov continue; 20602bd93d4dSIlya Dryomov } 20612bd93d4dSIlya Dryomov if (removed) 20626f3bfd45SIlya Dryomov set->osds[i - removed] = set->osds[i]; 20632bd93d4dSIlya Dryomov } 20646f3bfd45SIlya Dryomov set->size -= removed; 20656f3bfd45SIlya Dryomov if (set->size > 0) 20666f3bfd45SIlya Dryomov set->primary = set->osds[0]; 20672bd93d4dSIlya Dryomov } else { 20686f3bfd45SIlya Dryomov /* set down/dne devices to NONE */ 20696f3bfd45SIlya Dryomov for (i = set->size - 1; i >= 0; i--) { 20706f3bfd45SIlya Dryomov if (ceph_osd_is_down(osdmap, set->osds[i])) 20716f3bfd45SIlya Dryomov set->osds[i] = CRUSH_ITEM_NONE; 20722bd93d4dSIlya Dryomov else 20736f3bfd45SIlya Dryomov set->primary = set->osds[i]; 20746f3bfd45SIlya Dryomov } 20752bd93d4dSIlya Dryomov } 20762bd93d4dSIlya Dryomov } 20772bd93d4dSIlya Dryomov 20786f3bfd45SIlya Dryomov static void apply_primary_affinity(struct ceph_osdmap *osdmap, 20796f3bfd45SIlya Dryomov struct ceph_pg_pool_info *pi, 20806f3bfd45SIlya Dryomov u32 pps, 20816f3bfd45SIlya Dryomov struct ceph_osds *up) 208247ec1f3cSIlya Dryomov { 208347ec1f3cSIlya Dryomov int i; 208447ec1f3cSIlya Dryomov int pos = -1; 208547ec1f3cSIlya Dryomov 208647ec1f3cSIlya Dryomov /* 208747ec1f3cSIlya Dryomov * Do we have any non-default primary_affinity values for these 208847ec1f3cSIlya Dryomov * osds? 208947ec1f3cSIlya Dryomov */ 209047ec1f3cSIlya Dryomov if (!osdmap->osd_primary_affinity) 209147ec1f3cSIlya Dryomov return; 209247ec1f3cSIlya Dryomov 20936f3bfd45SIlya Dryomov for (i = 0; i < up->size; i++) { 20946f3bfd45SIlya Dryomov int osd = up->osds[i]; 209592b2e751SIlya Dryomov 209692b2e751SIlya Dryomov if (osd != CRUSH_ITEM_NONE && 209792b2e751SIlya Dryomov osdmap->osd_primary_affinity[osd] != 209847ec1f3cSIlya Dryomov CEPH_OSD_DEFAULT_PRIMARY_AFFINITY) { 209947ec1f3cSIlya Dryomov break; 210047ec1f3cSIlya Dryomov } 210147ec1f3cSIlya Dryomov } 21026f3bfd45SIlya Dryomov if (i == up->size) 210347ec1f3cSIlya Dryomov return; 210447ec1f3cSIlya Dryomov 210547ec1f3cSIlya Dryomov /* 210647ec1f3cSIlya Dryomov * Pick the primary. Feed both the seed (for the pg) and the 210747ec1f3cSIlya Dryomov * osd into the hash/rng so that a proportional fraction of an 210847ec1f3cSIlya Dryomov * osd's pgs get rejected as primary. 210947ec1f3cSIlya Dryomov */ 21106f3bfd45SIlya Dryomov for (i = 0; i < up->size; i++) { 21116f3bfd45SIlya Dryomov int osd = up->osds[i]; 211247ec1f3cSIlya Dryomov u32 aff; 211347ec1f3cSIlya Dryomov 211447ec1f3cSIlya Dryomov if (osd == CRUSH_ITEM_NONE) 211547ec1f3cSIlya Dryomov continue; 211647ec1f3cSIlya Dryomov 211747ec1f3cSIlya Dryomov aff = osdmap->osd_primary_affinity[osd]; 211847ec1f3cSIlya Dryomov if (aff < CEPH_OSD_MAX_PRIMARY_AFFINITY && 211947ec1f3cSIlya Dryomov (crush_hash32_2(CRUSH_HASH_RJENKINS1, 212047ec1f3cSIlya Dryomov pps, osd) >> 16) >= aff) { 212147ec1f3cSIlya Dryomov /* 212247ec1f3cSIlya Dryomov * We chose not to use this primary. Note it 212347ec1f3cSIlya Dryomov * anyway as a fallback in case we don't pick 212447ec1f3cSIlya Dryomov * anyone else, but keep looking. 212547ec1f3cSIlya Dryomov */ 212647ec1f3cSIlya Dryomov if (pos < 0) 212747ec1f3cSIlya Dryomov pos = i; 212847ec1f3cSIlya Dryomov } else { 212947ec1f3cSIlya Dryomov pos = i; 213047ec1f3cSIlya Dryomov break; 213147ec1f3cSIlya Dryomov } 213247ec1f3cSIlya Dryomov } 213347ec1f3cSIlya Dryomov if (pos < 0) 213447ec1f3cSIlya Dryomov return; 213547ec1f3cSIlya Dryomov 21366f3bfd45SIlya Dryomov up->primary = up->osds[pos]; 213747ec1f3cSIlya Dryomov 21386f3bfd45SIlya Dryomov if (ceph_can_shift_osds(pi) && pos > 0) { 213947ec1f3cSIlya Dryomov /* move the new primary to the front */ 214047ec1f3cSIlya Dryomov for (i = pos; i > 0; i--) 21416f3bfd45SIlya Dryomov up->osds[i] = up->osds[i - 1]; 21426f3bfd45SIlya Dryomov up->osds[0] = up->primary; 214347ec1f3cSIlya Dryomov } 214447ec1f3cSIlya Dryomov } 214547ec1f3cSIlya Dryomov 21462bd93d4dSIlya Dryomov /* 21476f3bfd45SIlya Dryomov * Get pg_temp and primary_temp mappings for given PG. 214845966c34SIlya Dryomov * 21496f3bfd45SIlya Dryomov * Note that a PG may have none, only pg_temp, only primary_temp or 21506f3bfd45SIlya Dryomov * both pg_temp and primary_temp mappings. This means @temp isn't 21516f3bfd45SIlya Dryomov * always a valid OSD set on return: in the "only primary_temp" case, 21526f3bfd45SIlya Dryomov * @temp will have its ->primary >= 0 but ->size == 0. 215345966c34SIlya Dryomov */ 21546f3bfd45SIlya Dryomov static void get_temp_osds(struct ceph_osdmap *osdmap, 21556f3bfd45SIlya Dryomov struct ceph_pg_pool_info *pi, 21566f3bfd45SIlya Dryomov const struct ceph_pg *raw_pgid, 21576f3bfd45SIlya Dryomov struct ceph_osds *temp) 215845966c34SIlya Dryomov { 21596f3bfd45SIlya Dryomov struct ceph_pg pgid; 216045966c34SIlya Dryomov struct ceph_pg_mapping *pg; 216145966c34SIlya Dryomov int i; 216245966c34SIlya Dryomov 21636f3bfd45SIlya Dryomov raw_pg_to_pg(pi, raw_pgid, &pgid); 21646f3bfd45SIlya Dryomov ceph_osds_init(temp); 216545966c34SIlya Dryomov 216645966c34SIlya Dryomov /* pg_temp? */ 216745966c34SIlya Dryomov pg = __lookup_pg_mapping(&osdmap->pg_temp, pgid); 216845966c34SIlya Dryomov if (pg) { 216945966c34SIlya Dryomov for (i = 0; i < pg->pg_temp.len; i++) { 217045966c34SIlya Dryomov if (ceph_osd_is_down(osdmap, pg->pg_temp.osds[i])) { 21716f3bfd45SIlya Dryomov if (ceph_can_shift_osds(pi)) 217245966c34SIlya Dryomov continue; 21736f3bfd45SIlya Dryomov 21746f3bfd45SIlya Dryomov temp->osds[temp->size++] = CRUSH_ITEM_NONE; 217545966c34SIlya Dryomov } else { 21766f3bfd45SIlya Dryomov temp->osds[temp->size++] = pg->pg_temp.osds[i]; 217745966c34SIlya Dryomov } 217845966c34SIlya Dryomov } 217945966c34SIlya Dryomov 218045966c34SIlya Dryomov /* apply pg_temp's primary */ 21816f3bfd45SIlya Dryomov for (i = 0; i < temp->size; i++) { 21826f3bfd45SIlya Dryomov if (temp->osds[i] != CRUSH_ITEM_NONE) { 21836f3bfd45SIlya Dryomov temp->primary = temp->osds[i]; 218445966c34SIlya Dryomov break; 218545966c34SIlya Dryomov } 218645966c34SIlya Dryomov } 218745966c34SIlya Dryomov } 218845966c34SIlya Dryomov 21895e8d4d36SIlya Dryomov /* primary_temp? */ 21905e8d4d36SIlya Dryomov pg = __lookup_pg_mapping(&osdmap->primary_temp, pgid); 21915e8d4d36SIlya Dryomov if (pg) 21926f3bfd45SIlya Dryomov temp->primary = pg->primary_temp.osd; 219345966c34SIlya Dryomov } 219445966c34SIlya Dryomov 219545966c34SIlya Dryomov /* 21966f3bfd45SIlya Dryomov * Map a PG to its acting set as well as its up set. 2197ac972230SIlya Dryomov * 21986f3bfd45SIlya Dryomov * Acting set is used for data mapping purposes, while up set can be 21996f3bfd45SIlya Dryomov * recorded for detecting interval changes and deciding whether to 22006f3bfd45SIlya Dryomov * resend a request. 22013d14c5d2SYehuda Sadeh */ 22026f3bfd45SIlya Dryomov void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap, 22036f3bfd45SIlya Dryomov const struct ceph_pg *raw_pgid, 22046f3bfd45SIlya Dryomov struct ceph_osds *up, 22056f3bfd45SIlya Dryomov struct ceph_osds *acting) 22063d14c5d2SYehuda Sadeh { 22076f3bfd45SIlya Dryomov struct ceph_pg_pool_info *pi; 2208ac972230SIlya Dryomov u32 pps; 22093d14c5d2SYehuda Sadeh 22106f3bfd45SIlya Dryomov pi = ceph_pg_pool_by_id(osdmap, raw_pgid->pool); 22116f3bfd45SIlya Dryomov if (!pi) { 22126f3bfd45SIlya Dryomov ceph_osds_init(up); 22136f3bfd45SIlya Dryomov ceph_osds_init(acting); 22146f3bfd45SIlya Dryomov goto out; 22158008ab10SIlya Dryomov } 22163d14c5d2SYehuda Sadeh 22176f3bfd45SIlya Dryomov pg_to_raw_osds(osdmap, pi, raw_pgid, up, &pps); 22186f3bfd45SIlya Dryomov raw_to_up_osds(osdmap, pi, up); 22196f3bfd45SIlya Dryomov apply_primary_affinity(osdmap, pi, pps, up); 22206f3bfd45SIlya Dryomov get_temp_osds(osdmap, pi, raw_pgid, acting); 22216f3bfd45SIlya Dryomov if (!acting->size) { 22226f3bfd45SIlya Dryomov memcpy(acting->osds, up->osds, up->size * sizeof(up->osds[0])); 22236f3bfd45SIlya Dryomov acting->size = up->size; 22246f3bfd45SIlya Dryomov if (acting->primary == -1) 22256f3bfd45SIlya Dryomov acting->primary = up->primary; 2226ac972230SIlya Dryomov } 22276f3bfd45SIlya Dryomov out: 22286f3bfd45SIlya Dryomov WARN_ON(!osds_valid(up) || !osds_valid(acting)); 22293d14c5d2SYehuda Sadeh } 22303d14c5d2SYehuda Sadeh 22313d14c5d2SYehuda Sadeh /* 2232f81f1633SIlya Dryomov * Return acting primary for given PG, or -1 if none. 22333d14c5d2SYehuda Sadeh */ 2234f81f1633SIlya Dryomov int ceph_pg_to_acting_primary(struct ceph_osdmap *osdmap, 2235f81f1633SIlya Dryomov const struct ceph_pg *raw_pgid) 22363d14c5d2SYehuda Sadeh { 22376f3bfd45SIlya Dryomov struct ceph_osds up, acting; 22383d14c5d2SYehuda Sadeh 2239f81f1633SIlya Dryomov ceph_pg_to_up_acting_osds(osdmap, raw_pgid, &up, &acting); 22406f3bfd45SIlya Dryomov return acting.primary; 22413d14c5d2SYehuda Sadeh } 2242f81f1633SIlya Dryomov EXPORT_SYMBOL(ceph_pg_to_acting_primary); 2243