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Diffstat (limited to 'net/ceph/osdmap.c')
-rw-r--r--net/ceph/osdmap.c305
1 files changed, 159 insertions, 146 deletions
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index de73214b5d26..603ddd92db19 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -13,26 +13,18 @@
char *ceph_osdmap_state_str(char *str, int len, int state)
{
- int flag = 0;
-
if (!len)
- goto done;
-
- *str = '\0';
- if (state) {
- if (state & CEPH_OSD_EXISTS) {
- snprintf(str, len, "exists");
- flag = 1;
- }
- if (state & CEPH_OSD_UP) {
- snprintf(str, len, "%s%s%s", str, (flag ? ", " : ""),
- "up");
- flag = 1;
- }
- } else {
+ return str;
+
+ if ((state & CEPH_OSD_EXISTS) && (state & CEPH_OSD_UP))
+ snprintf(str, len, "exists, up");
+ else if (state & CEPH_OSD_EXISTS)
+ snprintf(str, len, "exists");
+ else if (state & CEPH_OSD_UP)
+ snprintf(str, len, "up");
+ else
snprintf(str, len, "doesn't exist");
- }
-done:
+
return str;
}
@@ -53,13 +45,8 @@ static int calc_bits_of(unsigned int t)
*/
static void calc_pg_masks(struct ceph_pg_pool_info *pi)
{
- pi->pg_num_mask = (1 << calc_bits_of(le32_to_cpu(pi->v.pg_num)-1)) - 1;
- pi->pgp_num_mask =
- (1 << calc_bits_of(le32_to_cpu(pi->v.pgp_num)-1)) - 1;
- pi->lpg_num_mask =
- (1 << calc_bits_of(le32_to_cpu(pi->v.lpg_num)-1)) - 1;
- pi->lpgp_num_mask =
- (1 << calc_bits_of(le32_to_cpu(pi->v.lpgp_num)-1)) - 1;
+ pi->pg_num_mask = (1 << calc_bits_of(pi->pg_num-1)) - 1;
+ pi->pgp_num_mask = (1 << calc_bits_of(pi->pgp_num-1)) - 1;
}
/*
@@ -170,6 +157,7 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
c->choose_local_tries = 2;
c->choose_local_fallback_tries = 5;
c->choose_total_tries = 19;
+ c->chooseleaf_descend_once = 0;
ceph_decode_need(p, end, 4*sizeof(u32), bad);
magic = ceph_decode_32(p);
@@ -336,6 +324,11 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
dout("crush decode tunable choose_total_tries = %d",
c->choose_total_tries);
+ ceph_decode_need(p, end, sizeof(u32), done);
+ c->chooseleaf_descend_once = ceph_decode_32(p);
+ dout("crush decode tunable chooseleaf_descend_once = %d",
+ c->chooseleaf_descend_once);
+
done:
dout("crush_decode success\n");
return c;
@@ -354,12 +347,13 @@ bad:
*/
static int pgid_cmp(struct ceph_pg l, struct ceph_pg r)
{
- u64 a = *(u64 *)&l;
- u64 b = *(u64 *)&r;
-
- if (a < b)
+ if (l.pool < r.pool)
return -1;
- if (a > b)
+ if (l.pool > r.pool)
+ return 1;
+ if (l.seed < r.seed)
+ return -1;
+ if (l.seed > r.seed)
return 1;
return 0;
}
@@ -405,8 +399,8 @@ static struct ceph_pg_mapping *__lookup_pg_mapping(struct rb_root *root,
} else if (c > 0) {
n = n->rb_right;
} else {
- dout("__lookup_pg_mapping %llx got %p\n",
- *(u64 *)&pgid, pg);
+ dout("__lookup_pg_mapping %lld.%x got %p\n",
+ pgid.pool, pgid.seed, pg);
return pg;
}
}
@@ -418,12 +412,13 @@ static int __remove_pg_mapping(struct rb_root *root, struct ceph_pg pgid)
struct ceph_pg_mapping *pg = __lookup_pg_mapping(root, pgid);
if (pg) {
- dout("__remove_pg_mapping %llx %p\n", *(u64 *)&pgid, pg);
+ dout("__remove_pg_mapping %lld.%x %p\n", pgid.pool, pgid.seed,
+ pg);
rb_erase(&pg->node, root);
kfree(pg);
return 0;
}
- dout("__remove_pg_mapping %llx dne\n", *(u64 *)&pgid);
+ dout("__remove_pg_mapping %lld.%x dne\n", pgid.pool, pgid.seed);
return -ENOENT;
}
@@ -452,7 +447,7 @@ static int __insert_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *new)
return 0;
}
-static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, int id)
+static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, u64 id)
{
struct ceph_pg_pool_info *pi;
struct rb_node *n = root->rb_node;
@@ -508,24 +503,57 @@ static void __remove_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *pi)
static int __decode_pool(void **p, void *end, struct ceph_pg_pool_info *pi)
{
- unsigned int n, m;
+ u8 ev, cv;
+ unsigned len, num;
+ void *pool_end;
+
+ ceph_decode_need(p, end, 2 + 4, bad);
+ ev = ceph_decode_8(p); /* encoding version */
+ cv = ceph_decode_8(p); /* compat version */
+ if (ev < 5) {
+ pr_warning("got v %d < 5 cv %d of ceph_pg_pool\n", ev, cv);
+ return -EINVAL;
+ }
+ if (cv > 7) {
+ pr_warning("got v %d cv %d > 7 of ceph_pg_pool\n", ev, cv);
+ return -EINVAL;
+ }
+ len = ceph_decode_32(p);
+ ceph_decode_need(p, end, len, bad);
+ pool_end = *p + len;
- ceph_decode_copy(p, &pi->v, sizeof(pi->v));
- calc_pg_masks(pi);
+ pi->type = ceph_decode_8(p);
+ pi->size = ceph_decode_8(p);
+ pi->crush_ruleset = ceph_decode_8(p);
+ pi->object_hash = ceph_decode_8(p);
+
+ pi->pg_num = ceph_decode_32(p);
+ pi->pgp_num = ceph_decode_32(p);
+
+ *p += 4 + 4; /* skip lpg* */
+ *p += 4; /* skip last_change */
+ *p += 8 + 4; /* skip snap_seq, snap_epoch */
- /* num_snaps * snap_info_t */
- n = le32_to_cpu(pi->v.num_snaps);
- while (n--) {
- ceph_decode_need(p, end, sizeof(u64) + 1 + sizeof(u64) +
- sizeof(struct ceph_timespec), bad);
- *p += sizeof(u64) + /* key */
- 1 + sizeof(u64) + /* u8, snapid */
- sizeof(struct ceph_timespec);
- m = ceph_decode_32(p); /* snap name */
- *p += m;
+ /* skip snaps */
+ num = ceph_decode_32(p);
+ while (num--) {
+ *p += 8; /* snapid key */
+ *p += 1 + 1; /* versions */
+ len = ceph_decode_32(p);
+ *p += len;
}
- *p += le32_to_cpu(pi->v.num_removed_snap_intervals) * sizeof(u64) * 2;
+ /* skip removed snaps */
+ num = ceph_decode_32(p);
+ *p += num * (8 + 8);
+
+ *p += 8; /* skip auid */
+ pi->flags = ceph_decode_64(p);
+
+ /* ignore the rest */
+
+ *p = pool_end;
+ calc_pg_masks(pi);
return 0;
bad:
@@ -535,14 +563,15 @@ bad:
static int __decode_pool_names(void **p, void *end, struct ceph_osdmap *map)
{
struct ceph_pg_pool_info *pi;
- u32 num, len, pool;
+ u32 num, len;
+ u64 pool;
ceph_decode_32_safe(p, end, num, bad);
dout(" %d pool names\n", num);
while (num--) {
- ceph_decode_32_safe(p, end, pool, bad);
+ ceph_decode_64_safe(p, end, pool, bad);
ceph_decode_32_safe(p, end, len, bad);
- dout(" pool %d len %d\n", pool, len);
+ dout(" pool %llu len %d\n", pool, len);
ceph_decode_need(p, end, len, bad);
pi = __lookup_pg_pool(&map->pg_pools, pool);
if (pi) {
@@ -633,7 +662,6 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
struct ceph_osdmap *map;
u16 version;
u32 len, max, i;
- u8 ev;
int err = -EINVAL;
void *start = *p;
struct ceph_pg_pool_info *pi;
@@ -646,9 +674,12 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
map->pg_temp = RB_ROOT;
ceph_decode_16_safe(p, end, version, bad);
- if (version > CEPH_OSDMAP_VERSION) {
- pr_warning("got unknown v %d > %d of osdmap\n", version,
- CEPH_OSDMAP_VERSION);
+ if (version > 6) {
+ pr_warning("got unknown v %d > 6 of osdmap\n", version);
+ goto bad;
+ }
+ if (version < 6) {
+ pr_warning("got old v %d < 6 of osdmap\n", version);
goto bad;
}
@@ -660,20 +691,12 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
ceph_decode_32_safe(p, end, max, bad);
while (max--) {
- ceph_decode_need(p, end, 4 + 1 + sizeof(pi->v), bad);
+ ceph_decode_need(p, end, 8 + 2, bad);
err = -ENOMEM;
pi = kzalloc(sizeof(*pi), GFP_NOFS);
if (!pi)
goto bad;
- pi->id = ceph_decode_32(p);
- err = -EINVAL;
- ev = ceph_decode_8(p); /* encoding version */
- if (ev > CEPH_PG_POOL_VERSION) {
- pr_warning("got unknown v %d > %d of ceph_pg_pool\n",
- ev, CEPH_PG_POOL_VERSION);
- kfree(pi);
- goto bad;
- }
+ pi->id = ceph_decode_64(p);
err = __decode_pool(p, end, pi);
if (err < 0) {
kfree(pi);
@@ -682,12 +705,10 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
__insert_pg_pool(&map->pg_pools, pi);
}
- if (version >= 5) {
- err = __decode_pool_names(p, end, map);
- if (err < 0) {
- dout("fail to decode pool names");
- goto bad;
- }
+ err = __decode_pool_names(p, end, map);
+ if (err < 0) {
+ dout("fail to decode pool names");
+ goto bad;
}
ceph_decode_32_safe(p, end, map->pool_max, bad);
@@ -726,8 +747,10 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
struct ceph_pg pgid;
struct ceph_pg_mapping *pg;
- ceph_decode_need(p, end, sizeof(u32) + sizeof(u64), bad);
- ceph_decode_copy(p, &pgid, sizeof(pgid));
+ err = ceph_decode_pgid(p, end, &pgid);
+ if (err)
+ goto bad;
+ ceph_decode_need(p, end, sizeof(u32), bad);
n = ceph_decode_32(p);
err = -EINVAL;
if (n > (UINT_MAX - sizeof(*pg)) / sizeof(u32))
@@ -745,7 +768,8 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
err = __insert_pg_mapping(pg, &map->pg_temp);
if (err)
goto bad;
- dout(" added pg_temp %llx len %d\n", *(u64 *)&pgid, len);
+ dout(" added pg_temp %lld.%x len %d\n", pgid.pool, pgid.seed,
+ len);
}
/* crush */
@@ -784,16 +808,17 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
struct ceph_fsid fsid;
u32 epoch = 0;
struct ceph_timespec modified;
- u32 len, pool;
- __s32 new_pool_max, new_flags, max;
+ s32 len;
+ u64 pool;
+ __s64 new_pool_max;
+ __s32 new_flags, max;
void *start = *p;
int err = -EINVAL;
u16 version;
ceph_decode_16_safe(p, end, version, bad);
- if (version > CEPH_OSDMAP_INC_VERSION) {
- pr_warning("got unknown v %d > %d of inc osdmap\n", version,
- CEPH_OSDMAP_INC_VERSION);
+ if (version != 6) {
+ pr_warning("got unknown v %d != 6 of inc osdmap\n", version);
goto bad;
}
@@ -803,7 +828,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
epoch = ceph_decode_32(p);
BUG_ON(epoch != map->epoch+1);
ceph_decode_copy(p, &modified, sizeof(modified));
- new_pool_max = ceph_decode_32(p);
+ new_pool_max = ceph_decode_64(p);
new_flags = ceph_decode_32(p);
/* full map? */
@@ -853,18 +878,9 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
/* new_pool */
ceph_decode_32_safe(p, end, len, bad);
while (len--) {
- __u8 ev;
struct ceph_pg_pool_info *pi;
- ceph_decode_32_safe(p, end, pool, bad);
- ceph_decode_need(p, end, 1 + sizeof(pi->v), bad);
- ev = ceph_decode_8(p); /* encoding version */
- if (ev > CEPH_PG_POOL_VERSION) {
- pr_warning("got unknown v %d > %d of ceph_pg_pool\n",
- ev, CEPH_PG_POOL_VERSION);
- err = -EINVAL;
- goto bad;
- }
+ ceph_decode_64_safe(p, end, pool, bad);
pi = __lookup_pg_pool(&map->pg_pools, pool);
if (!pi) {
pi = kzalloc(sizeof(*pi), GFP_NOFS);
@@ -890,7 +906,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
while (len--) {
struct ceph_pg_pool_info *pi;
- ceph_decode_32_safe(p, end, pool, bad);
+ ceph_decode_64_safe(p, end, pool, bad);
pi = __lookup_pg_pool(&map->pg_pools, pool);
if (pi)
__remove_pg_pool(&map->pg_pools, pi);
@@ -948,10 +964,12 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
int j;
struct ceph_pg pgid;
u32 pglen;
- ceph_decode_need(p, end, sizeof(u64) + sizeof(u32), bad);
- ceph_decode_copy(p, &pgid, sizeof(pgid));
- pglen = ceph_decode_32(p);
+ err = ceph_decode_pgid(p, end, &pgid);
+ if (err)
+ goto bad;
+ ceph_decode_need(p, end, sizeof(u32), bad);
+ pglen = ceph_decode_32(p);
if (pglen) {
ceph_decode_need(p, end, pglen*sizeof(u32), bad);
@@ -975,8 +993,8 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
kfree(pg);
goto bad;
}
- dout(" added pg_temp %llx len %d\n", *(u64 *)&pgid,
- pglen);
+ dout(" added pg_temp %lld.%x len %d\n", pgid.pool,
+ pgid.seed, pglen);
} else {
/* remove */
__remove_pg_mapping(&map->pg_temp, pgid);
@@ -1010,7 +1028,7 @@ bad:
* pass a stride back to the caller.
*/
int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
- u64 off, u64 *plen,
+ u64 off, u64 len,
u64 *ono,
u64 *oxoff, u64 *oxlen)
{
@@ -1021,7 +1039,7 @@ int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
u32 su_per_object;
u64 t, su_offset;
- dout("mapping %llu~%llu osize %u fl_su %u\n", off, *plen,
+ dout("mapping %llu~%llu osize %u fl_su %u\n", off, len,
osize, su);
if (su == 0 || sc == 0)
goto invalid;
@@ -1054,11 +1072,10 @@ int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
/*
* Calculate the length of the extent being written to the selected
- * object. This is the minimum of the full length requested (plen) or
+ * object. This is the minimum of the full length requested (len) or
* the remainder of the current stripe being written to.
*/
- *oxlen = min_t(u64, *plen, su - su_offset);
- *plen = *oxlen;
+ *oxlen = min_t(u64, len, su - su_offset);
dout(" obj extent %llu~%llu\n", *oxoff, *oxlen);
return 0;
@@ -1076,36 +1093,22 @@ EXPORT_SYMBOL(ceph_calc_file_object_mapping);
* calculate an object layout (i.e. pgid) from an oid,
* file_layout, and osdmap
*/
-int ceph_calc_object_layout(struct ceph_object_layout *ol,
- const char *oid,
- struct ceph_file_layout *fl,
- struct ceph_osdmap *osdmap)
+int ceph_calc_ceph_pg(struct ceph_pg *pg, const char *oid,
+ struct ceph_osdmap *osdmap, uint64_t pool)
{
- unsigned int num, num_mask;
- struct ceph_pg pgid;
- int poolid = le32_to_cpu(fl->fl_pg_pool);
- struct ceph_pg_pool_info *pool;
- unsigned int ps;
+ struct ceph_pg_pool_info *pool_info;
BUG_ON(!osdmap);
-
- pool = __lookup_pg_pool(&osdmap->pg_pools, poolid);
- if (!pool)
+ pool_info = __lookup_pg_pool(&osdmap->pg_pools, pool);
+ if (!pool_info)
return -EIO;
- ps = ceph_str_hash(pool->v.object_hash, oid, strlen(oid));
- num = le32_to_cpu(pool->v.pg_num);
- num_mask = pool->pg_num_mask;
-
- pgid.ps = cpu_to_le16(ps);
- pgid.preferred = cpu_to_le16(-1);
- pgid.pool = fl->fl_pg_pool;
- dout("calc_object_layout '%s' pgid %d.%x\n", oid, poolid, ps);
+ pg->pool = pool;
+ pg->seed = ceph_str_hash(pool_info->object_hash, oid, strlen(oid));
- ol->ol_pgid = pgid;
- ol->ol_stripe_unit = fl->fl_object_stripe_unit;
+ dout("%s '%s' pgid %lld.%x\n", __func__, oid, pg->pool, pg->seed);
return 0;
}
-EXPORT_SYMBOL(ceph_calc_object_layout);
+EXPORT_SYMBOL(ceph_calc_ceph_pg);
/*
* Calculate raw osd vector for the given pgid. Return pointer to osd
@@ -1117,19 +1120,16 @@ static int *calc_pg_raw(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
struct ceph_pg_mapping *pg;
struct ceph_pg_pool_info *pool;
int ruleno;
- unsigned int poolid, ps, pps, t, r;
+ int r;
+ u32 pps;
- poolid = le32_to_cpu(pgid.pool);
- ps = le16_to_cpu(pgid.ps);
-
- pool = __lookup_pg_pool(&osdmap->pg_pools, poolid);
+ pool = __lookup_pg_pool(&osdmap->pg_pools, pgid.pool);
if (!pool)
return NULL;
/* pg_temp? */
- t = ceph_stable_mod(ps, le32_to_cpu(pool->v.pg_num),
- pool->pgp_num_mask);
- pgid.ps = cpu_to_le16(t);
+ pgid.seed = ceph_stable_mod(pgid.seed, pool->pg_num,
+ pool->pgp_num_mask);
pg = __lookup_pg_mapping(&osdmap->pg_temp, pgid);
if (pg) {
*num = pg->len;
@@ -1137,26 +1137,39 @@ static int *calc_pg_raw(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
}
/* crush */
- ruleno = crush_find_rule(osdmap->crush, pool->v.crush_ruleset,
- pool->v.type, pool->v.size);
+ ruleno = crush_find_rule(osdmap->crush, pool->crush_ruleset,
+ pool->type, pool->size);
if (ruleno < 0) {
- pr_err("no crush rule pool %d ruleset %d type %d size %d\n",
- poolid, pool->v.crush_ruleset, pool->v.type,
- pool->v.size);
+ pr_err("no crush rule pool %lld ruleset %d type %d size %d\n",
+ pgid.pool, pool->crush_ruleset, pool->type,
+ pool->size);
return NULL;
}
- pps = ceph_stable_mod(ps,
- le32_to_cpu(pool->v.pgp_num),
- pool->pgp_num_mask);
- pps += poolid;
+ if (pool->flags & CEPH_POOL_FLAG_HASHPSPOOL) {
+ /* hash pool id and seed sothat pool PGs do not overlap */
+ pps = crush_hash32_2(CRUSH_HASH_RJENKINS1,
+ ceph_stable_mod(pgid.seed, pool->pgp_num,
+ pool->pgp_num_mask),
+ pgid.pool);
+ } else {
+ /*
+ * legacy ehavior: add ps and pool together. this is
+ * not a great approach because the PGs from each pool
+ * will overlap on top of each other: 0.5 == 1.4 ==
+ * 2.3 == ...
+ */
+ pps = ceph_stable_mod(pgid.seed, pool->pgp_num,
+ pool->pgp_num_mask) +
+ (unsigned)pgid.pool;
+ }
r = crush_do_rule(osdmap->crush, ruleno, pps, osds,
- min_t(int, pool->v.size, *num),
+ min_t(int, pool->size, *num),
osdmap->osd_weight);
if (r < 0) {
- pr_err("error %d from crush rule: pool %d ruleset %d type %d"
- " size %d\n", r, poolid, pool->v.crush_ruleset,
- pool->v.type, pool->v.size);
+ pr_err("error %d from crush rule: pool %lld ruleset %d type %d"
+ " size %d\n", r, pgid.pool, pool->crush_ruleset,
+ pool->type, pool->size);
return NULL;
}
*num = r;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 14:46:37 +0100