From: Hao Xu Date: Thu, 14 Oct 2021 14:04:00 +0000 (+0800) Subject: io_uring: fix wrong condition to grab uring lock X-Git-Tag: v5.15~39^2~4 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=14cfbb7a7856f190035f8e53045bdbfa648fae41;p=platform%2Fkernel%2Flinux-starfive.git 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 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 --- diff --git a/fs/io_uring.c b/fs/io_uring.c index 6b9e702..e68d278 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);