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Date: Sun, 10 Dec 2023 09:30:04 +0800
From: kernel test robot <lkp@...el.com>
To: Ilya Dryomov <idryomov@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: net/ceph/crush/mapper.c:440: warning: No description found for
parameter 'work'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 21b73ffcc62ab772bc06e3e90bd87eff5e9e8ed4
commit: 66a0e2d579dbec5c676cfe446234ffebb267c564 crush: remove mutable part of CRUSH map
date: 7 years ago
config: i386-buildonly-randconfig-004-20231120 (https://download.01.org/0day-ci/archive/20231210/202312100923.SaslEo9a-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231210/202312100923.SaslEo9a-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312100923.SaslEo9a-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> net/ceph/crush/mapper.c:440: warning: No description found for parameter 'work'
net/ceph/crush/mapper.c:440: warning: No description found for parameter 'weight'
net/ceph/crush/mapper.c:440: warning: No description found for parameter 'weight_max'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'map'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'work'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'bucket'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'weight'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'weight_max'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'x'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'left'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'numrep'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'type'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'out'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'outpos'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'tries'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'recurse_tries'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'recurse_to_leaf'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'out2'
net/ceph/crush/mapper.c:626: warning: No description found for parameter 'parent_r'
vim +/work +440 net/ceph/crush/mapper.c
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 403
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 404 /**
9fe07182827d99 net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 405 * crush_choose_firstn - choose numrep distinct items of given type
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 406 * @map: the crush_map
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 407 * @bucket: the bucket we are choose an item from
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 408 * @x: crush input value
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 409 * @numrep: the number of items to choose
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 410 * @type: the type of item to choose
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 411 * @out: pointer to output vector
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 412 * @outpos: our position in that vector
45002267e8d269 net/ceph/crush/mapper.c Ilya Dryomov 2015-04-14 413 * @out_size: size of the out vector
0e32d7126cdf30 net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 414 * @tries: number of attempts to make
0e32d7126cdf30 net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 415 * @recurse_tries: number of attempts to have recursive chooseleaf make
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 416 * @local_retries: localized retries
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 417 * @local_fallback_retries: localized fallback retries
0e32d7126cdf30 net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 418 * @recurse_to_leaf: true if we want one device under each item of given type (chooseleaf instead of choose)
dc6ae6d8e7726b net/ceph/crush/mapper.c Ilya Dryomov 2016-01-31 419 * @stable: stable mode starts rep=0 in the recursive call for all replicas
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 420 * @vary_r: pass r to recursive calls
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 421 * @out2: second output vector for leaf items (if @recurse_to_leaf)
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 422 * @parent_r: r value passed from the parent
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 423 */
9fe07182827d99 net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 424 static int crush_choose_firstn(const struct crush_map *map,
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 425 struct crush_work *work,
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 426 const struct crush_bucket *bucket,
b3b33b0e43323a net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 427 const __u32 *weight, int weight_max,
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 428 int x, int numrep, int type,
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 429 int *out, int outpos,
45002267e8d269 net/ceph/crush/mapper.c Ilya Dryomov 2015-04-14 430 int out_size,
2d8be0bc8bc2dc net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 431 unsigned int tries,
2d8be0bc8bc2dc net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 432 unsigned int recurse_tries,
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 433 unsigned int local_retries,
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 434 unsigned int local_fallback_retries,
9fe07182827d99 net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 435 int recurse_to_leaf,
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 436 unsigned int vary_r,
dc6ae6d8e7726b net/ceph/crush/mapper.c Ilya Dryomov 2016-01-31 437 unsigned int stable,
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 438 int *out2,
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 439 int parent_r)
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 @440 {
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 441 int rep;
8b12d47b80c7a3 net/ceph/crush/mapper.c Sage Weil 2012-05-07 442 unsigned int ftotal, flocal;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 443 int retry_descent, retry_bucket, skip_rep;
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 444 const struct crush_bucket *in = bucket;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 445 int r;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 446 int i;
b28813a61d6ffe fs/ceph/crush/mapper.c Sage Weil 2009-10-07 447 int item = 0;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 448 int itemtype;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 449 int collide, reject;
45002267e8d269 net/ceph/crush/mapper.c Ilya Dryomov 2015-04-14 450 int count = out_size;
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 451
dc6ae6d8e7726b net/ceph/crush/mapper.c Ilya Dryomov 2016-01-31 452 dprintk("CHOOSE%s bucket %d x %d outpos %d numrep %d tries %d recurse_tries %d local_retries %d local_fallback_retries %d parent_r %d stable %d\n",
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 453 recurse_to_leaf ? "_LEAF" : "",
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 454 bucket->id, x, outpos, numrep,
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 455 tries, recurse_tries, local_retries, local_fallback_retries,
dc6ae6d8e7726b net/ceph/crush/mapper.c Ilya Dryomov 2016-01-31 456 parent_r, stable);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 457
dc6ae6d8e7726b net/ceph/crush/mapper.c Ilya Dryomov 2016-01-31 458 for (rep = stable ? 0 : outpos; rep < numrep && count > 0 ; rep++) {
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 459 /* keep trying until we get a non-out, non-colliding item */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 460 ftotal = 0;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 461 skip_rep = 0;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 462 do {
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 463 retry_descent = 0;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 464 in = bucket; /* initial bucket */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 465
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 466 /* choose through intervening buckets */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 467 flocal = 0;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 468 do {
b28813a61d6ffe fs/ceph/crush/mapper.c Sage Weil 2009-10-07 469 collide = 0;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 470 retry_bucket = 0;
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 471 r = rep + parent_r;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 472 /* r' = r + f_total */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 473 r += ftotal;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 474
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 475 /* bucket choose */
b28813a61d6ffe fs/ceph/crush/mapper.c Sage Weil 2009-10-07 476 if (in->size == 0) {
b28813a61d6ffe fs/ceph/crush/mapper.c Sage Weil 2009-10-07 477 reject = 1;
b28813a61d6ffe fs/ceph/crush/mapper.c Sage Weil 2009-10-07 478 goto reject;
b28813a61d6ffe fs/ceph/crush/mapper.c Sage Weil 2009-10-07 479 }
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 480 if (local_fallback_retries > 0 &&
546f04ef716dd4 net/ceph/crush/mapper.c Sage Weil 2012-07-30 481 flocal >= (in->size>>1) &&
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 482 flocal > local_fallback_retries)
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 483 item = bucket_perm_choose(
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 484 in, work->work[-1-in->id],
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 485 x, r);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 486 else
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 487 item = crush_bucket_choose(
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 488 in, work->work[-1-in->id],
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 489 x, r);
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 490 if (item >= map->max_devices) {
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 491 dprintk(" bad item %d\n", item);
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 492 skip_rep = 1;
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 493 break;
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 494 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 495
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 496 /* desired type? */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 497 if (item < 0)
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 498 itemtype = map->buckets[-1-item]->type;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 499 else
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 500 itemtype = 0;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 501 dprintk(" item %d type %d\n", item, itemtype);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 502
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 503 /* keep going? */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 504 if (itemtype != type) {
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 505 if (item >= 0 ||
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 506 (-1-item) >= map->max_buckets) {
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 507 dprintk(" bad item type %d\n", type);
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 508 skip_rep = 1;
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 509 break;
a1f4895be8bf1b net/ceph/crush/mapper.c Sage Weil 2012-05-07 510 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 511 in = map->buckets[-1-item];
55bda7aacd13f5 fs/ceph/crush/mapper.c Sage Weil 2010-06-24 512 retry_bucket = 1;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 513 continue;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 514 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 515
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 516 /* collision? */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 517 for (i = 0; i < outpos; i++) {
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 518 if (out[i] == item) {
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 519 collide = 1;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 520 break;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 521 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 522 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 523
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 524 reject = 0;
7d7c1f6136bac0 net/ceph/crush/mapper.c Sage Weil 2013-01-15 525 if (!collide && recurse_to_leaf) {
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 526 if (item < 0) {
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 527 int sub_r;
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 528 if (vary_r)
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 529 sub_r = r >> (vary_r-1);
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 530 else
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 531 sub_r = 0;
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 532 if (crush_choose_firstn(
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 533 map,
66a0e2d579dbec net/ceph/crush/mapper.c Ilya Dryomov 2017-01-31 534 work,
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 535 map->buckets[-1-item],
b3b33b0e43323a net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 536 weight, weight_max,
dc6ae6d8e7726b net/ceph/crush/mapper.c Ilya Dryomov 2016-01-31 537 x, stable ? 1 : outpos+1, 0,
45002267e8d269 net/ceph/crush/mapper.c Ilya Dryomov 2015-04-14 538 out2, outpos, count,
2d8be0bc8bc2dc net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 539 recurse_tries, 0,
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 540 local_retries,
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 541 local_fallback_retries,
9fe07182827d99 net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 542 0,
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 543 vary_r,
dc6ae6d8e7726b net/ceph/crush/mapper.c Ilya Dryomov 2016-01-31 544 stable,
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 545 NULL,
e2b149cc4ba007 net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 546 sub_r) <= outpos)
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 547 /* didn't get leaf */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 548 reject = 1;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 549 } else {
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 550 /* we already have a leaf! */
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 551 out2[outpos] = item;
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 552 }
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 553 }
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 554
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 555 if (!reject) {
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 556 /* out? */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 557 if (itemtype == 0)
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 558 reject = is_out(map, weight,
b3b33b0e43323a net/ceph/crush/mapper.c Ilya Dryomov 2013-12-24 559 weight_max,
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 560 item, x);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 561 else
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 562 reject = 0;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 563 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 564
b28813a61d6ffe fs/ceph/crush/mapper.c Sage Weil 2009-10-07 565 reject:
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 566 if (reject || collide) {
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 567 ftotal++;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 568 flocal++;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 569
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 570 if (collide && flocal <= local_retries)
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 571 /* retry locally a few times */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 572 retry_bucket = 1;
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 573 else if (local_fallback_retries > 0 &&
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 574 flocal <= in->size + local_fallback_retries)
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 575 /* exhaustive bucket search */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 576 retry_bucket = 1;
48a163dbb517eb net/ceph/crush/mapper.c Ilya Dryomov 2014-03-19 577 else if (ftotal < tries)
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 578 /* then retry descent */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 579 retry_descent = 1;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 580 else
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 581 /* else give up */
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 582 skip_rep = 1;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 583 dprintk(" reject %d collide %d "
8b12d47b80c7a3 net/ceph/crush/mapper.c Sage Weil 2012-05-07 584 "ftotal %u flocal %u\n",
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 585 reject, collide, ftotal,
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 586 flocal);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 587 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 588 } while (retry_bucket);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 589 } while (retry_descent);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 590
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 591 if (skip_rep) {
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 592 dprintk("skip rep\n");
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 593 continue;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 594 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 595
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 596 dprintk("CHOOSE got %d\n", item);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 597 out[outpos] = item;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 598 outpos++;
45002267e8d269 net/ceph/crush/mapper.c Ilya Dryomov 2015-04-14 599 count--;
b459be739f97e2 net/ceph/crush/mapper.c Ilya Dryomov 2015-06-12 600 #ifndef __KERNEL__
b459be739f97e2 net/ceph/crush/mapper.c Ilya Dryomov 2015-06-12 601 if (map->choose_tries && ftotal <= map->choose_total_tries)
b459be739f97e2 net/ceph/crush/mapper.c Ilya Dryomov 2015-06-12 602 map->choose_tries[ftotal]++;
b459be739f97e2 net/ceph/crush/mapper.c Ilya Dryomov 2015-06-12 603 #endif
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 604 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 605
a1a31e734241ae fs/ceph/crush/mapper.c Sage Weil 2010-06-24 606 dprintk("CHOOSE returns %d\n", outpos);
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 607 return outpos;
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 608 }
5ecc0a0f8128b1 fs/ceph/crush/mapper.c Sage Weil 2009-10-06 609
:::::: The code at line 440 was first introduced by commit
:::::: 5ecc0a0f8128b1876e8614638deaed49cc8b174c ceph: CRUSH mapping algorithm
:::::: TO: Sage Weil <sage@...dream.net>
:::::: CC: Sage Weil <sage@...dream.net>
--
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