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 8RO3JUy+ 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 12/13/23 6:24 AM, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable > head: 4d9256c0c56bafd76b8b1517916451e168fae495 > commit: 84bda0b24555d3fdf52b56040696ee1ee00700c9 [208/262] maple_tree: do not preallocate nodes for slot stores > config: arc-allnoconfig (https://download.01.org/0day-ci/archive/20231213/202312132207.KsGGGt1v-lkp@intel.com/config) > compiler: arc-elf-gcc (GCC) 13.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231213/202312132207.KsGGGt1v-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 > | Closes: https://lore.kernel.org/oe-kbuild-all/202312132207.KsGGGt1v-lkp@intel.com/ > > Note: the akpm-mm/mm-unstable HEAD 4d9256c0c56bafd76b8b1517916451e168fae495 builds fine. > It only hurts bisectability. > > All errors (new ones prefixed by >>): > > lib/maple_tree.c: In function 'mas_preallocate': >>> lib/maple_tree.c:5506:30: error: 'struct ma_state' has no member named 'end' > 5506 | if ((node_size == mas->end) && ((!mt_in_rcu(mas->tree)) > | ^~ > Hi Andrew, I developed this patch over mm-unstable which contains the change to make end a member of struct ma_state. But because this patch is a hotfix, it shouldn't have been developed on top of feature commits that won't be a part of a 6.7 rc. I'll send a v2 with the coding style changes and using wr_mas->node_end. When this fix is merged into mm-unstable, it will cause another build error because Liam's series [PATCH 00/12] maple_tree: iterator state changes[1] will have to be updated to converting this patch's use of wr_mas->node. Thanks, Sid [1]: https://lore.kernel.org/all/20231101171629.3612299-5-Liam.Howlett@oracle.com/T/#mc0e5000f6de822182bf7579c230030c5ec4ec1a7 > > vim +5506 lib/maple_tree.c > > 5465 > 5466 /** > 5467 * mas_preallocate() - Preallocate enough nodes for a store operation > 5468 * @mas: The maple state > 5469 * @entry: The entry that will be stored > 5470 * @gfp: The GFP_FLAGS to use for allocations. > 5471 * > 5472 * Return: 0 on success, -ENOMEM if memory could not be allocated. > 5473 */ > 5474 int mas_preallocate(struct ma_state *mas, void *entry, gfp_t gfp) > 5475 { > 5476 MA_WR_STATE(wr_mas, mas, entry); > 5477 unsigned char node_size; > 5478 int request = 1; > 5479 int ret; > 5480 > 5481 > 5482 if (unlikely(!mas->index && mas->last == ULONG_MAX)) > 5483 goto ask_now; > 5484 > 5485 mas_wr_store_setup(&wr_mas); > 5486 wr_mas.content = mas_start(mas); > 5487 /* Root expand */ > 5488 if (unlikely(mas_is_none(mas) || mas_is_ptr(mas))) > 5489 goto ask_now; > 5490 > 5491 if (unlikely(!mas_wr_walk(&wr_mas))) { > 5492 /* Spanning store, use worst case for now */ > 5493 request = 1 + mas_mt_height(mas) * 3; > 5494 goto ask_now; > 5495 } > 5496 > 5497 /* At this point, we are at the leaf node that needs to be altered. */ > 5498 /* Exact fit, no nodes needed. */ > 5499 if (wr_mas.r_min == mas->index && wr_mas.r_max == mas->last) > 5500 return 0; > 5501 > 5502 mas_wr_end_piv(&wr_mas); > 5503 node_size = mas_wr_new_end(&wr_mas); > 5504 > 5505 /* Slot store, does not require additional nodes */ >> 5506 if ((node_size == mas->end) && ((!mt_in_rcu(mas->tree)) > 5507 || (wr_mas.offset_end - mas->offset == 1))) > 5508 return 0; > 5509 > 5510 if (node_size >= mt_slots[wr_mas.type]) { > 5511 /* Split, worst case for now. */ > 5512 request = 1 + mas_mt_height(mas) * 2; > 5513 goto ask_now; > 5514 } > 5515 > 5516 /* New root needs a singe node */ > 5517 if (unlikely(mte_is_root(mas->node))) > 5518 goto ask_now; > 5519 > 5520 /* Potential spanning rebalance collapsing a node, use worst-case */ > 5521 if (node_size - 1 <= mt_min_slots[wr_mas.type]) > 5522 request = mas_mt_height(mas) * 2 - 1; > 5523 > 5524 /* node store, slot store needs one node */ > 5525 ask_now: > 5526 mas_node_count_gfp(mas, request, gfp); > 5527 mas->mas_flags |= MA_STATE_PREALLOC; > 5528 if (likely(!mas_is_err(mas))) > 5529 return 0; > 5530 > 5531 mas_set_alloc_req(mas, 0); > 5532 ret = xa_err(mas->node); > 5533 mas_reset(mas); > 5534 mas_destroy(mas); > 5535 mas_reset(mas); > 5536 return ret; > 5537 } > 5538 EXPORT_SYMBOL_GPL(mas_preallocate); > 5539 >