From: Kanchan Joshi <[email protected]>
To: [email protected], [email protected], [email protected]
Cc: [email protected], [email protected],
[email protected], [email protected], [email protected]
Subject: [RFC PATCH 3/6] io_uring: mark iopoll not supported for uring-cmd
Date: Thu, 5 Aug 2021 18:25:36 +0530 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
From: Anuj Gupta <[email protected]>
Currently uring-passthrough doesn't support iopoll. Bail out to avoid
the panic.
Signed-off-by: Anuj Gupta <[email protected]>
---
fs/io_uring.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index b73bc16c3e70..3361056313a7 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3587,6 +3587,11 @@ static int io_uring_cmd_prep(struct io_kiocb *req,
if (!req->file->f_op->uring_cmd)
return -EOPNOTSUPP;
+ if (req->ctx->flags & IORING_SETUP_IOPOLL) {
+ printk_once(KERN_WARNING "io_uring: iopoll not supported!\n");
+ return -EOPNOTSUPP;
+ }
+
cmd->op = READ_ONCE(csqe->op);
cmd->len = READ_ONCE(csqe->len);
--
2.25.1
next prev parent reply other threads:[~2021-08-05 13:16 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20210805125910epcas5p1100e7093dd2b1ac5bbb751331e2ded23@epcas5p1.samsung.com>
2021-08-05 12:55 ` [RFC PATCH 0/6] Fixed-buffers io_uring passthrough over nvme-char Kanchan Joshi
[not found] ` <CGME20210805125917epcas5p4f75c9423a7b886dc79500901cc8f55ab@epcas5p4.samsung.com>
2021-08-05 12:55 ` [RFC PATCH 1/6] io_uring: add infra for uring_cmd completion in submitter-task Kanchan Joshi
[not found] ` <CGME20210805125923epcas5p10e6c1b95475440be68f58244d5a3cb9a@epcas5p1.samsung.com>
2021-08-05 12:55 ` [RFC PATCH 2/6] nvme: wire-up support for async-passthru on char-device Kanchan Joshi
2021-09-07 7:46 ` Christoph Hellwig
2021-09-07 16:20 ` Kanchan Joshi
2021-09-08 6:15 ` Christoph Hellwig
2021-09-22 7:19 ` Kanchan Joshi
[not found] ` <CGME20210805125927epcas5p28f3413fe3d0a2baed37a05453df0d482@epcas5p2.samsung.com>
2021-08-05 12:55 ` Kanchan Joshi [this message]
[not found] ` <CGME20210805125931epcas5p259fec172085ea34fdbf5a1c1f8da5e90@epcas5p2.samsung.com>
2021-08-05 12:55 ` [RFC PATCH 4/6] io_uring: add helper for fixed-buffer uring-cmd Kanchan Joshi
2021-09-07 7:47 ` Christoph Hellwig
[not found] ` <CGME20210805125934epcas5p4ff88e95d558ad9f65d77a888a4211b18@epcas5p4.samsung.com>
2021-08-05 12:55 ` [RFC PATCH 5/6] io_uring: add support for uring_cmd with fixed-buffer Kanchan Joshi
2021-09-07 7:48 ` Christoph Hellwig
2021-09-07 16:29 ` Kanchan Joshi
[not found] ` <CGME20210805125937epcas5p15667b460e28d87bd40400f69005aafe3@epcas5p1.samsung.com>
2021-08-05 12:55 ` [RFC PATCH 6/6] nvme: enable passthrough " Kanchan Joshi
2021-09-07 7:50 ` Christoph Hellwig
2021-09-07 16:47 ` Kanchan Joshi
2021-09-08 6:16 ` Christoph Hellwig
2021-09-07 7:10 ` [RFC PATCH 0/6] Fixed-buffers io_uring passthrough over nvme-char Christoph Hellwig
2021-09-07 12:38 ` Jens Axboe
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