From ff16cfcfdaafa3c4287be92c6944fb8ea6dc75d1 Mon Sep 17 00:00:00 2001 From: Usama Arif Date: Fri, 4 Feb 2022 14:51:16 +0000 Subject: [PATCH] io_uring: avoid ring quiesce while registering restrictions and enabling rings IORING_SETUP_R_DISABLED prevents submitting requests and so there will be no requests until IORING_REGISTER_ENABLE_RINGS is called. And IORING_REGISTER_RESTRICTIONS works only before IORING_REGISTER_ENABLE_RINGS is called. Hence ring quiesce is not needed for these opcodes. Signed-off-by: Usama Arif Link: https://lore.kernel.org/r/20220204145117.1186568-5-usama.arif@bytedance.com Signed-off-by: Jens Axboe --- fs/io_uring.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index 961866b..6ff9f67 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -11021,6 +11021,8 @@ static bool io_register_op_must_quiesce(int op) case IORING_REGISTER_PROBE: case IORING_REGISTER_PERSONALITY: case IORING_UNREGISTER_PERSONALITY: + case IORING_REGISTER_ENABLE_RINGS: + case IORING_REGISTER_RESTRICTIONS: case IORING_REGISTER_FILES2: case IORING_REGISTER_FILES_UPDATE2: case IORING_REGISTER_BUFFERS2: -- 2.7.4