From 14cfbb7a7856f190035f8e53045bdbfa648fae41 Mon Sep 17 00:00:00 2001
From: Hao Xu <haoxu@linux.alibaba.com>
Date: Thu, 14 Oct 2021 22:04:00 +0800
Subject: [PATCH] io_uring: fix wrong condition to grab uring lock
Git-commit: 14cfbb7a7856f190035f8e53045bdbfa648fae41
Patch-mainline: v5.15-rc6
References: bsc#1205205
Grab uring lock when we are in io-worker rather than in the original
or system-wq context since we already hold it in these two situation.
Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Fixes: b66ceaf324b3 ("io_uring: move iopoll reissue into regular IO path")
Link: https://lore.kernel.org/r/20211014140400.50235-1-haoxu@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
fs/io_uring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 6b9e70208782..e68d27829bb2 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2949,7 +2949,7 @@ static void kiocb_done(struct kiocb *kiocb, ssize_t ret,
struct io_ring_ctx *ctx = req->ctx;
req_set_fail(req);
- if (issue_flags & IO_URING_F_NONBLOCK) {
+ if (!(issue_flags & IO_URING_F_NONBLOCK)) {
mutex_lock(&ctx->uring_lock);
__io_req_complete(req, issue_flags, ret, cflags);
mutex_unlock(&ctx->uring_lock);
--
2.35.3