From: Pavel Begunkov Date: Thu, 10 Jun 2021 15:37:38 +0000 (+0100) Subject: io_uring: add feature flag for rsrc tags X-Git-Tag: accepted/tizen/unified/20230118.172025~7081^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9690557e22d63f13534fd167d293ac8ed8b104f9;p=platform%2Fkernel%2Flinux-rpi.git io_uring: add feature flag for rsrc tags Add IORING_FEAT_RSRC_TAGS indicating that io_uring supports a bunch of new IORING_REGISTER operations, in particular IORING_REGISTER_[FILES[,UPDATE]2,BUFFERS[2,UPDATE]] that support rsrc tagging, and also indicating implemented dynamic fixed buffer updates. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/9b995d4045b6c6b4ab7510ca124fd25ac2203af7.1623339162.git.asml.silence@gmail.com Signed-off-by: Jens Axboe --- diff --git a/fs/io_uring.c b/fs/io_uring.c index 663fef3..fa8794c 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -9676,7 +9676,8 @@ static int io_uring_create(unsigned entries, struct io_uring_params *p, IORING_FEAT_SUBMIT_STABLE | IORING_FEAT_RW_CUR_POS | IORING_FEAT_CUR_PERSONALITY | IORING_FEAT_FAST_POLL | IORING_FEAT_POLL_32BITS | IORING_FEAT_SQPOLL_NONFIXED | - IORING_FEAT_EXT_ARG | IORING_FEAT_NATIVE_WORKERS; + IORING_FEAT_EXT_ARG | IORING_FEAT_NATIVE_WORKERS | + IORING_FEAT_RSRC_TAGS; if (copy_to_user(params, p, sizeof(*p))) { ret = -EFAULT; diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 48b4ddc..162ff99 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -280,6 +280,7 @@ struct io_uring_params { #define IORING_FEAT_SQPOLL_NONFIXED (1U << 7) #define IORING_FEAT_EXT_ARG (1U << 8) #define IORING_FEAT_NATIVE_WORKERS (1U << 9) +#define IORING_FEAT_RSRC_TAGS (1U << 10) /* * io_uring_register(2) opcodes and arguments