diff options
| -rw-r--r-- | block/io_uring.c | 12 | ||||
| -rw-r--r-- | meson.build | 1 |
2 files changed, 12 insertions, 1 deletions
diff --git a/block/io_uring.c b/block/io_uring.c index 0b401512b9..d48e472e74 100644 --- a/block/io_uring.c +++ b/block/io_uring.c @@ -18,6 +18,7 @@ #include "qapi/error.h" #include "trace.h" + /* io_uring ring size */ #define MAX_ENTRIES 128 @@ -434,8 +435,17 @@ LuringState *luring_init(Error **errp) } ioq_init(&s->io_q); - return s; +#ifdef CONFIG_LIBURING_REGISTER_RING_FD + if (io_uring_register_ring_fd(&s->ring) < 0) { + /* + * Only warn about this error: we will fallback to the non-optimized + * io_uring operations. + */ + warn_report("failed to register linux io_uring ring file descriptor"); + } +#endif + return s; } void luring_cleanup(LuringState *s) diff --git a/meson.build b/meson.build index 0c2e11ff07..9e65cc5367 100644 --- a/meson.build +++ b/meson.build @@ -1752,6 +1752,7 @@ config_host_data.set('CONFIG_LIBNFS', libnfs.found()) config_host_data.set('CONFIG_LIBSSH', libssh.found()) config_host_data.set('CONFIG_LINUX_AIO', libaio.found()) config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found()) +config_host_data.set('CONFIG_LIBURING_REGISTER_RING_FD', cc.has_function('io_uring_register_ring_fd', prefix: '#include <liburing.h>', dependencies:linux_io_uring)) config_host_data.set('CONFIG_LIBPMEM', libpmem.found()) config_host_data.set('CONFIG_NUMA', numa.found()) config_host_data.set('CONFIG_OPENGL', opengl.found()) |