VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Pavel Begunkov <asml.silence@gmail.com> 2021-02-04 13:52:08 +0000 committer: Jens Axboe <axboe@kernel.dk> 2021-02-04 08:05:46 -0700 commit: 5280f7e530f71ba85baf90169393196976ad0e52 parent: ea64ec02b31d5b05ae94ac4d57e38f8a02117c76
Commit Summary:
io_uring/io-wq: return 2-step work swap scheme
Diffstat:
1 file changed, 6 insertions, 10 deletions
diff --git a/fs/io-wq.c b/fs/io-wq.c
index 2e2f14f42bf2..63ef195b1acb 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -555,23 +555,21 @@ get_next:
 
 		/* handle a whole dependent link */
 		do {
-			struct io_wq_work *old_work, *next_hashed, *linked;
+			struct io_wq_work *next_hashed, *linked;
 			unsigned int hash = io_get_work_hash(work);
 
 			next_hashed = wq_next_work(work);
 			io_impersonate_work(worker, work);
+			wq->do_work(work);
+			io_assign_current_work(worker, NULL);
 
-			old_work = work;
-			linked = wq->do_work(work);
-
+			linked = wq->free_work(work);
 			work = next_hashed;
 			if (!work && linked && !io_wq_is_hashed(linked)) {
 				work = linked;
 				linked = NULL;
 			}
 			io_assign_current_work(worker, work);
-			wq->free_work(old_work);
-
 			if (linked)
 				io_wqe_enqueue(wqe, linked);
 
@@ -850,11 +848,9 @@ static void io_run_cancel(struct io_wq_work *work, struct io_wqe *wqe)
 	struct io_wq *wq = wqe->wq;
 
 	do {
-		struct io_wq_work *old_work = work;
-
 		work->flags |= IO_WQ_WORK_CANCEL;
-		work = wq->do_work(work);
-		wq->free_work(old_work);
+		wq->do_work(work);
+		work = wq->free_work(work);
 	} while (work);
 }