linux-kernel - [PATCH 4/9] io-wq: tweak io_get

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Date:   Fri, 29 Apr 2022 18:18:53 +0800
From:   Hao Xu <haoxu.linux@...il.com>
To:     io-uring@...r.kernel.org
Cc:     Jens Axboe <axboe@...nel.dk>,
        Pavel Begunkov <asml.silence@...il.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/9] io-wq: tweak io_get_acct()

From: Hao Xu <howeyxu@...cent.com>

Add an argument for io_get_acct() to indicate fixed or normal worker

Signed-off-by: Hao Xu <howeyxu@...cent.com>
---
 fs/io-wq.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/fs/io-wq.c b/fs/io-wq.c
index ac8faf1f7a0a..c67bd5e5d117 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -208,20 +208,24 @@ static void io_worker_release(struct io_worker *worker)
 		complete(&worker->ref_done);
 }
 
-static inline struct io_wqe_acct *io_get_acct(struct io_wqe *wqe, bool bound)
+static inline struct io_wqe_acct *io_get_acct(struct io_wqe *wqe, bool bound,
+					      bool fixed)
 {
-	return &wqe->acct[bound ? IO_WQ_ACCT_BOUND : IO_WQ_ACCT_UNBOUND];
+	unsigned index = bound ? IO_WQ_ACCT_BOUND : IO_WQ_ACCT_UNBOUND;
+
+	return fixed ? &wqe->fixed_acct[index] : &wqe->acct[index];
 }
 
 static inline struct io_wqe_acct *io_work_get_acct(struct io_wqe *wqe,
 						   struct io_wq_work *work)
 {
-	return io_get_acct(wqe, !(work->flags & IO_WQ_WORK_UNBOUND));
+	return io_get_acct(wqe, !(work->flags & IO_WQ_WORK_UNBOUND), false);
 }
 
 static inline struct io_wqe_acct *io_wqe_get_acct(struct io_worker *worker)
 {
-	return io_get_acct(worker->wqe, worker->flags & IO_WORKER_F_BOUND);
+	return io_get_acct(worker->wqe, worker->flags & IO_WORKER_F_BOUND,
+			   worker->flags & IO_WORKER_F_FIXED);
 }
 
 static void io_worker_ref_put(struct io_wq *wq)
@@ -1124,7 +1128,7 @@ static void io_wqe_cancel_pending_work(struct io_wqe *wqe,
 	int i;
 retry:
 	for (i = 0; i < IO_WQ_ACCT_NR; i++) {
-		struct io_wqe_acct *acct = io_get_acct(wqe, i == 0);
+		struct io_wqe_acct *acct = io_get_acct(wqe, i == 0, false);
 
 		if (io_acct_cancel_pending_work(wqe, acct, match)) {
 			if (match->cancel_all)
-- 
2.36.0