author: Christoph Hellwig <hch@lst.de> 2020-06-10 18:42:10 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2020-06-10 19:14:18 -0700
commit: 37c54f9bd48663f7657a9178fe08c47e4f5b537b
parent: f5678e7f2ac31c270334b936352f0ef2fe7dd2b3
Commit Summary:
Diffstat:
1 file changed, 2 insertions, 6 deletions
diff --git a/fs/io-wq.c b/fs/io-wq.c
index 748621f7391e..a5e90ac39e4d 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -169,7 +169,6 @@ static bool __io_worker_unuse(struct io_wqe *wqe, struct io_worker *worker)
dropped_lock = true;
}
__set_current_state(TASK_RUNNING);
- set_fs(KERNEL_DS);
kthread_unuse_mm(worker->mm);
mmput(worker->mm);
worker->mm = NULL;
@@ -421,14 +420,11 @@ static void io_wq_switch_mm(struct io_worker *worker, struct io_wq_work *work)
mmput(worker->mm);
worker->mm = NULL;
}
- if (!work->mm) {
- set_fs(KERNEL_DS);
+ if (!work->mm)
return;
- }
+
if (mmget_not_zero(work->mm)) {
kthread_use_mm(work->mm);
- if (!worker->mm)
- set_fs(USER_DS);
worker->mm = work->mm;
/* hang on to this mm */
work->mm = NULL;