From 2840f710f23a3a867426637393acbdfa1f4f1d59 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Tue, 27 Apr 2021 16:13:51 +0100
Subject: io_uring: fix drain with rsrc CQEs
Resource emitted CQEs are not bound to requests, so fix up counters used
for DRAIN/defer logic.
Fixes: b60c8dce33895 ("io_uring: preparation for rsrc tagging")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/2b32f5f0a40d5928c3466d028f936e167f0654be.1619536280.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
fs/io_uring.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 360f81395d81..b0706f047c50 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -7539,6 +7539,7 @@ static void __io_rsrc_put_work(struct io_rsrc_node *ref_node)
io_ring_submit_lock(ctx, lock_ring);
spin_lock_irqsave(&ctx->completion_lock, flags);
io_cqring_fill_event(ctx, prsrc->tag, 0, 0);
+ ctx->cq_extra++;
io_commit_cqring(ctx);
spin_unlock_irqrestore(&ctx->completion_lock, flags);
io_cqring_ev_posted(ctx);
--
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