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X-Received-From: 2607:f8b0:4864:20::441 Subject: [Qemu-devel] [PATCH v5 11/12] qemu-io: adds support for io_uring X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Kevin Wolf , Sergio Lopez , qemu-block@nongnu.org, Markus Armbruster , Max Reitz , saket.sinha89@gmail.com, Stefan Hajnoczi , Paolo Bonzini , Maxim Levitsky , Julia Suvorova , Aarushi Mehta Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Aarushi Mehta --- qemu-io.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/qemu-io.c b/qemu-io.c index 8d5d5911cb..54b82151c4 100644 --- a/qemu-io.c +++ b/qemu-io.c @@ -129,6 +129,7 @@ static void open_help(void) " -n, -- disable host cache, short for -t none\n" " -U, -- force shared permissions\n" " -k, -- use kernel AIO implementation (on Linux only)\n" +" -i -- use kernel io_uring (Linux 5.1+)\n" " -t, -- use the given cache mode for the image\n" " -d, -- use the given discard mode for the image\n" " -o, -- options to be given to the block driver" @@ -188,6 +189,11 @@ static int open_f(BlockBackend *blk, int argc, char **argv) case 'k': flags |= BDRV_O_NATIVE_AIO; break; +#ifdef CONFIG_LINUX_IO_URING + case 'i': + flags |= BDRV_O_IO_URING; + break; +#endif case 't': if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) < 0) { error_report("Invalid cache option: %s", optarg); @@ -290,6 +296,7 @@ static void usage(const char *name) " -C, --copy-on-read enable copy-on-read\n" " -m, --misalign misalign allocations for O_DIRECT\n" " -k, --native-aio use kernel AIO implementation (on Linux only)\n" +" -i --io_uring use kernel io_uring (Linux 5.1+)\n" " -t, --cache=MODE use the given cache mode for the image\n" " -d, --discard=MODE use the given discard mode for the image\n" " -T, --trace [[enable=]][,events=][,file=]\n" @@ -499,6 +506,7 @@ int main(int argc, char **argv) { "copy-on-read", no_argument, NULL, 'C' }, { "misalign", no_argument, NULL, 'm' }, { "native-aio", no_argument, NULL, 'k' }, + { "io_uring", no_argument, NULL, 'i' }, { "discard", required_argument, NULL, 'd' }, { "cache", required_argument, NULL, 't' }, { "trace", required_argument, NULL, 'T' }, @@ -566,6 +574,11 @@ int main(int argc, char **argv) case 'k': flags |= BDRV_O_NATIVE_AIO; break; +#ifdef CONFIG_LINUX_IO_URING + case 'i': + flags |= BDRV_O_IO_URING; + break; +#endif case 't': if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) < 0) { error_report("Invalid cache option: %s", optarg); -- 2.17.1