Signed-off-by: Aarushi Mehta <mehta.aar...@gmail.com>
---
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=]<pattern>][,events=<file>][,file=<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
