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Merge tag 'block-6.19-20260102' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

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Pull block fixes from Jens Axboe:

 - Scan partition tables asynchronously for ublk, similarly to how nvme
   does it. This avoids potential deadlocks, which is why nvme does it
   that way too. Includes a set of selftests as well.

 - MD pull request via Yu:
     - Fix null-pointer dereference in raid5 sysfs group_thread_cnt
       store (Tuo Li)
     - Fix possible mempool corruption during raid1 raid_disks update
       via sysfs (FengWei Shih)
     - Fix logical_block_size configuration being overwritten during
       super_1_validate() (Li Nan)
     - Fix forward incompatibility with configurable logical block size:
       arrays assembled on new kernels could not be assembled on older
       kernels (v6.18 and before) due to non-zero reserved pad rejection
       (Li Nan)
     - Fix static checker warning about iterator not incremented (Li Nan)

 - Skip CPU offlining notifications on unmapped hardware queues

 - bfq-iosched block stats fix

 - Fix outdated comment in bfq-iosched

* tag 'block-6.19-20260102' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  block, bfq: update outdated comment
  blk-mq: skip CPU offline notify on unmapped hctx
  selftests/ublk: fix Makefile to rebuild on header changes
  selftests/ublk: add test for async partition scan
  ublk: scan partition in async way
  block,bfq: fix aux stat accumulation destination
  md: Fix forward incompatibility from configurable logical block size
  md: Fix logical_block_size configuration being overwritten
  md: suspend array while updating raid_disks via sysfs
  md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt()
  md: Fix static checker warning in analyze_sbs
This commit is contained in:
Linus Torvalds
2026-01-02 12:15:59 -08:00
parent 509b5b1152 69153e8b97
commit bea82c80a5
9 changed files with 174 additions and 27 deletions
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2
block/bfq-cgroup.c
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@@ -380,7 +380,7 @@ static void bfqg_stats_add_aux(struct bfqg_stats *to, struct bfqg_stats *from)
blkg_rwstat_add_aux(&to->merged, &from->merged);
blkg_rwstat_add_aux(&to->service_time, &from->service_time);
blkg_rwstat_add_aux(&to->wait_time, &from->wait_time);
bfq_stat_add_aux(&from->time, &from->time);
bfq_stat_add_aux(&to->time, &from->time);
bfq_stat_add_aux(&to->avg_queue_size_sum, &from->avg_queue_size_sum);
bfq_stat_add_aux(&to->avg_queue_size_samples,
&from->avg_queue_size_samples);

2
block/bfq-iosched.h
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@@ -984,7 +984,7 @@ struct bfq_group_data {
* unused for the root group. Used to know whether there
* are groups with more than one active @bfq_entity
* (see the comments to the function
* bfq_bfqq_may_idle()).
* bfq_better_to_idle()).
* @rq_pos_tree: rbtree sorted by next_request position, used when
* determining if two or more queues have interleaving
* requests (see bfq_find_close_cooperator()).

2
block/blk-mq.c
View File

@@ -3721,7 +3721,7 @@ static int blk_mq_hctx_notify_offline(unsigned int cpu, struct hlist_node *node)
struct blk_mq_hw_ctx, cpuhp_online);
int ret = 0;
if (blk_mq_hctx_has_online_cpu(hctx, cpu))
if (!hctx->nr_ctx || blk_mq_hctx_has_online_cpu(hctx, cpu))
return 0;
/*