[PATCH 11/11] io_uring: cancel works in exec work list for fixed worker

[Hao Xu <hao.xu@xxxxxxxxx>]

From: Hao Xu <howeyxu@xxxxxxxxxxx>

When users want to cancel a request, look into the exec work list of
fixed worker as well. It's not sane to ignore it.

Signed-off-by: Hao Xu <howeyxu@xxxxxxxxxxx>
---
 io_uring/io-wq.c | 44 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/io_uring/io-wq.c b/io_uring/io-wq.c
index 38d88da70a40..9e8ad7455373 100644
--- a/io_uring/io-wq.c
+++ b/io_uring/io-wq.c
@@ -1285,32 +1285,44 @@ static bool io_acct_cancel_pending_work(struct io_wqe *wqe,
 	return false;
 }
 
-static void io_wqe_cancel_pending_work(struct io_wqe *wqe,
-				       struct io_cb_cancel_data *match)
+static void io_wqe_cancel_pending_work_normal(struct io_wqe *wqe,
+					      struct io_cb_cancel_data *match)
 {
-	int i, j;
-	struct io_wqe_acct *acct, *iw_acct;
+	int i;
+	struct io_wqe_acct *acct;
 
-retry_public:
+retry:
 	for (i = 0; i < IO_WQ_ACCT_NR; i++) {
 		acct = io_get_acct(wqe, i == 0, false);
 		if (io_acct_cancel_pending_work(wqe, acct, match)) {
 			if (match->cancel_all)
-				goto retry_public;
+				goto retry;
 			return;
 		}
 	}
+}
+
+static void __io_wqe_cancel_pending_work_fixed(struct io_wqe *wqe,
+					       struct io_cb_cancel_data *match,
+					       bool exec)
+{
+	int i, j;
+	struct io_wqe_acct *acct, *iw_acct;
 
-retry_private:
+retry:
 	for (i = 0; i < IO_WQ_ACCT_NR; i++) {
 		acct = io_get_acct(wqe, i == 0, true);
 		raw_spin_lock(&acct->lock);
 		for (j = 0; j < acct->nr_fixed; j++) {
-			iw_acct = &acct->fixed_workers[j]->acct;
+			if (exec)
+				iw_acct = &acct->fixed_workers[j]->acct;
+			else
+				iw_acct = &acct->fixed_workers[j]->exec_acct;
+
 			if (io_acct_cancel_pending_work(wqe, iw_acct, match)) {
 				if (match->cancel_all) {
 					raw_spin_unlock(&acct->lock);
-					goto retry_private;
+					goto retry;
 				}
 				break;
 			}
@@ -1319,6 +1331,20 @@ static void io_wqe_cancel_pending_work(struct io_wqe *wqe,
 	}
 }
 
+static void io_wqe_cancel_pending_work_fixed(struct io_wqe *wqe,
+					     struct io_cb_cancel_data *match)
+{
+	__io_wqe_cancel_pending_work_fixed(wqe, match, false);
+	__io_wqe_cancel_pending_work_fixed(wqe, match, true);
+}
+
+static void io_wqe_cancel_pending_work(struct io_wqe *wqe,
+				       struct io_cb_cancel_data *match)
+{
+	io_wqe_cancel_pending_work_normal(wqe, match);
+	io_wqe_cancel_pending_work_fixed(wqe, match);
+}
+
 static void io_wqe_cancel_running_work(struct io_wqe *wqe,
 				       struct io_cb_cancel_data *match)
 {
-- 
2.25.1