io_uring: fix wrong condition to grab uring lock

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>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 6b9e702..e68d278 100644 (file)
--- 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);