diff options
Diffstat (limited to 'fs/io-wq.c')
| -rw-r--r-- | fs/io-wq.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/io-wq.c b/fs/io-wq.c index 2b4276990571..31c5a10b0825 100644 --- a/fs/io-wq.c +++ b/fs/io-wq.c @@ -57,6 +57,7 @@ struct io_worker { struct rcu_head rcu; struct mm_struct *mm; + const struct cred *creds; struct files_struct *restore_files; }; @@ -111,6 +112,7 @@ struct io_wq { struct task_struct *manager; struct user_struct *user; + struct cred *creds; struct mm_struct *mm; refcount_t refs; struct completion done; @@ -136,6 +138,11 @@ static bool __io_worker_unuse(struct io_wqe *wqe, struct io_worker *worker) { bool dropped_lock = false; + if (worker->creds) { + revert_creds(worker->creds); + worker->creds = NULL; + } + if (current->files != worker->restore_files) { __acquire(&wqe->lock); spin_unlock_irq(&wqe->lock); @@ -442,6 +449,8 @@ next: set_fs(USER_DS); worker->mm = wq->mm; } + if (!worker->creds) + worker->creds = override_creds(wq->creds); if (test_bit(IO_WQ_BIT_CANCEL, &wq->state)) work->flags |= IO_WQ_WORK_CANCEL; if (worker->mm) @@ -995,6 +1004,7 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data) /* caller must already hold a reference to this */ wq->user = data->user; + wq->creds = data->creds; i = 0; for_each_online_node(node) { |