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| author | Li Lingfeng <lilingfeng3@huawei.com> | 2023-08-03 10:17:11 +0300 |
|---|---|---|
| committer | Song Liu <song@kernel.org> | 2023-08-15 19:40:26 +0300 |
| commit | 7eb8ff02c1df279bf7f7f29b866beb655a9eebe9 (patch) | |
| tree | cb3020d5e092ac44bef479e32bb05730aeafbc06 /drivers/md/md.h | |
| parent | 892da88d1cd93426e9c6d7717876ca705fe2b9fa (diff) | |
| download | linux-7eb8ff02c1df279bf7f7f29b866beb655a9eebe9.tar.xz | |
md: Hold mddev->reconfig_mutex when trying to get mddev->sync_thread
Commit ba9d9f1a707f ("Revert "md: unlock mddev before reap sync_thread in
action_store"") removed the scenario of calling md_unregister_thread()
without holding mddev->reconfig_mutex, so add a lock holding check before
acquiring mddev->sync_thread by passing mdev to md_unregister_thread().
Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20230803071711.2546560-1-lilingfeng@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
Diffstat (limited to 'drivers/md/md.h')
| -rw-r--r-- | drivers/md/md.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index 8ae957480976..9bcb77bca963 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -761,7 +761,7 @@ extern struct md_thread *md_register_thread( void (*run)(struct md_thread *thread), struct mddev *mddev, const char *name); -extern void md_unregister_thread(struct md_thread __rcu **threadp); +extern void md_unregister_thread(struct mddev *mddev, struct md_thread __rcu **threadp); extern void md_wakeup_thread(struct md_thread __rcu *thread); extern void md_check_recovery(struct mddev *mddev); extern void md_reap_sync_thread(struct mddev *mddev); |