{"id":2219723,"url":"http://patchwork.ozlabs.org/api/patches/2219723/?format=json","web_url":"http://patchwork.ozlabs.org/project/ltp/patch/20260404011340.13288-1-wegao@suse.com/","project":{"id":59,"url":"http://patchwork.ozlabs.org/api/projects/59/?format=json","name":"Linux Test Project development","link_name":"ltp","list_id":"ltp.lists.linux.it","list_email":"ltp@lists.linux.it","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260404011340.13288-1-wegao@suse.com>","list_archive_url":null,"date":"2026-04-04T01:13:27","name":"[v7] io_submit04: Add test case for RWF_NOWAIT flag","commit_ref":null,"pull_url":null,"state":"needs-review-ack","archived":false,"hash":"67aed42d6f99c4a8632c133a7e7aba1d19ec1ac9","submitter":{"id":85577,"url":"http://patchwork.ozlabs.org/api/people/85577/?format=json","name":"Wei Gao","email":"wegao@suse.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/ltp/patch/20260404011340.13288-1-wegao@suse.com/mbox/","series":[{"id":498690,"url":"http://patchwork.ozlabs.org/api/series/498690/?format=json","web_url":"http://patchwork.ozlabs.org/project/ltp/list/?series=498690","date":"2026-04-04T01:13:27","name":"[v7] io_submit04: Add test case for RWF_NOWAIT flag","version":7,"mbox":"http://patchwork.ozlabs.org/series/498690/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2219723/comments/","check":"success","checks":"http://patchwork.ozlabs.org/api/patches/2219723/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","ltp@lists.linux.it"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ltp@picard.linux.it"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=lists.linux.it header.i=@lists.linux.it\n header.a=rsa-sha256 header.s=picard header.b=BNBAe+d0;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=suse.com header.i=@suse.com header.a=rsa-sha256\n header.s=google header.b=Vkzz8jeO;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=2001:1418:10:5::2; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" "},"content":"Fixes: #467\nSigned-off-by: Wei Gao \n---\nv6->v7:\n- Fix 32bit issue, use TST_PTR_TO_UINT convert buf\n- Updated the comment header to use the :manpage:\n- Simplify logic in cleanup()\n\n configure.ac | 1 +\n include/lapi/aio_abi.h | 44 +++++++++\n runtest/syscalls | 1 +\n .../kernel/syscalls/io_submit/.gitignore | 1 +\n .../kernel/syscalls/io_submit/io_submit04.c | 99 +++++++++++++++++++\n 5 files changed, 146 insertions(+)\n create mode 100644 include/lapi/aio_abi.h\n create mode 100644 testcases/kernel/syscalls/io_submit/io_submit04.c","diff":"diff --git a/configure.ac b/configure.ac\nindex e5d3ce063..812f17d8b 100644\n--- a/configure.ac\n+++ b/configure.ac\n@@ -173,6 +173,7 @@ AC_CHECK_FUNCS_ONCE([ \\\n ])\n AC_CHECK_FUNCS(mkdtemp,[],AC_MSG_ERROR(mkdtemp() not found!))\n \n+AC_CHECK_MEMBERS([struct iocb.aio_rw_flags],,,[#include ])\n AC_CHECK_MEMBERS([struct fanotify_event_info_fid.fsid.__val],,,[#include ])\n AC_CHECK_MEMBERS([struct perf_event_mmap_page.aux_head],,,[#include ])\n AC_CHECK_MEMBERS([struct sigaction.sa_sigaction],[],[],[#include ])\ndiff --git a/include/lapi/aio_abi.h b/include/lapi/aio_abi.h\nnew file mode 100644\nindex 000000000..ac78e5500\n--- /dev/null\n+++ b/include/lapi/aio_abi.h\n@@ -0,0 +1,44 @@\n+// SPDX-License-Identifier: GPL-2.0-or-later\n+/*\n+ * Copyright (c) 2025 Wei Gao \n+ */\n+\n+#ifndef LAPI_AIO_ABI_H__\n+#define LAPI_AIO_ABI_H__\n+\n+#include \n+#include \n+\n+#ifndef RWF_NOWAIT\n+# define RWF_NOWAIT 0x00000008\n+#endif\n+\n+struct iocb_fallback {\n+\tuint64_t aio_data;\n+#if __BYTE_ORDER == __LITTLE_ENDIAN\n+\tuint32_t aio_key;\n+\tuint32_t aio_rw_flags;\n+#elif __BYTE_ORDER == __BIG_ENDIAN\n+\tuint32_t aio_rw_flags;\n+\tuint32_t aio_key;\n+#else\n+#error edit for your odd byteorder.\n+#endif\n+\tuint16_t aio_lio_opcode;\n+\tint16_t aio_reqprio;\n+\tuint32_t aio_fildes;\n+\tuint64_t aio_buf;\n+\tuint64_t aio_nbytes;\n+\tint64_t aio_offset;\n+\tuint64_t aio_reserved2;\n+\tuint32_t aio_flags;\n+\tuint32_t aio_resfd;\n+};\n+\n+#ifndef HAVE_STRUCT_IOCB_AIO_RW_FLAGS\n+typedef struct iocb_fallback iocb;\n+#else\n+typedef struct iocb iocb;\n+#endif\n+\n+#endif /* LAPI_AIO_ABI_H__ */\ndiff --git a/runtest/syscalls b/runtest/syscalls\nindex 6ba0227a8..d72fceb5e 100644\n--- a/runtest/syscalls\n+++ b/runtest/syscalls\n@@ -699,6 +699,7 @@ io_setup02 io_setup02\n io_submit01 io_submit01\n io_submit02 io_submit02\n io_submit03 io_submit03\n+io_submit04 io_submit04\n \n keyctl01 keyctl01\n keyctl02 keyctl02\ndiff --git a/testcases/kernel/syscalls/io_submit/.gitignore b/testcases/kernel/syscalls/io_submit/.gitignore\nindex 60b07970a..abe962e1c 100644\n--- a/testcases/kernel/syscalls/io_submit/.gitignore\n+++ b/testcases/kernel/syscalls/io_submit/.gitignore\n@@ -1,3 +1,4 @@\n /io_submit01\n /io_submit02\n /io_submit03\n+/io_submit04\ndiff --git a/testcases/kernel/syscalls/io_submit/io_submit04.c b/testcases/kernel/syscalls/io_submit/io_submit04.c\nnew file mode 100644\nindex 000000000..d68bde909\n--- /dev/null\n+++ b/testcases/kernel/syscalls/io_submit/io_submit04.c\n@@ -0,0 +1,99 @@\n+// SPDX-License-Identifier: GPL-2.0-or-later\n+/*\n+ * Copyright (c) 2025 Wei Gao \n+ */\n+\n+/*\\\n+ * Test RWF_NOWAIT support in io_submit(), verifying that an\n+ * asynchronous read operation on a blocking resource (empty pipe)\n+ * will cause -EAGAIN. This is done by checking that io_getevents()\n+ * :manpage:`io_getevents(2)` syscall returns immediately and\n+ * io_event.res is equal to -EAGAIN.\n+ */\n+\n+#include \"config.h\"\n+#include \"tst_test.h\"\n+#include \"lapi/syscalls.h\"\n+#include \"lapi/aio_abi.h\"\n+\n+#define BUF_SIZE 100\n+\n+static int fd[2] = {-1, -1};\n+static aio_context_t ctx;\n+static char *buf;\n+static iocb *cb;\n+static iocb **iocbs;\n+\n+static void setup(void)\n+{\n+\tif (tst_syscall(__NR_io_setup, 1, &ctx))\n+\t\ttst_brk(TBROK | TERRNO, \"io_setup failed\");\n+\n+\tSAFE_PIPE(fd);\n+\n+\tcb->aio_fildes = fd[0];\n+\tcb->aio_lio_opcode = IOCB_CMD_PREAD;\n+\tcb->aio_buf = TST_PTR_TO_UINT(buf);\n+\tcb->aio_offset = 0;\n+\tcb->aio_nbytes = BUF_SIZE;\n+\tcb->aio_rw_flags = RWF_NOWAIT;\n+\n+\tiocbs[0] = cb;\n+}\n+\n+static void cleanup(void)\n+{\n+\tif (fd[0] != -1)\n+\t\tSAFE_CLOSE(fd[0]);\n+\n+\tif (fd[1] != -1)\n+\t\tSAFE_CLOSE(fd[1]);\n+\n+\tif (ctx && tst_syscall(__NR_io_destroy, ctx))\n+\t\ttst_brk(TBROK | TERRNO, \"io_destroy() failed\");\n+}\n+\n+static void run(void)\n+{\n+\tstruct io_event evbuf;\n+\tstruct timespec timeout = { .tv_sec = 1 };\n+\tlong nr = 1;\n+\n+\tTEST(tst_syscall(__NR_io_submit, ctx, nr, iocbs));\n+\n+\tif (TST_RET == -1 && TST_ERR == EOPNOTSUPP) {\n+\t\ttst_brk(TCONF, \"RWF_NOWAIT not supported by kernel\");\n+\t} else if (TST_RET != nr) {\n+\t\ttst_brk(TBROK | TTERRNO, \"io_submit() returns %ld, expected %ld\",\n+\t\t\t\tTST_RET, nr);\n+\t}\n+\n+\tTEST(tst_syscall(__NR_io_getevents, ctx, 1, 1, &evbuf, &timeout));\n+\n+\tif (TST_RET != 1) {\n+\t\ttst_res(TFAIL | TTERRNO, \"io_getevents() failed to get 1 event\");\n+\t\treturn;\n+\t}\n+\n+\tif (evbuf.res == -EAGAIN)\n+\t\ttst_res(TPASS, \"io_getevents() returned EAGAIN on read event\");\n+\telse\n+\t\ttst_res(TFAIL, \"io_getevents() returned with %s instead of EAGAIN\",\n+\t\t\tstrerror(-evbuf.res));\n+}\n+\n+static struct tst_test test = {\n+\t.test_all = run,\n+\t.setup = setup,\n+\t.cleanup = cleanup,\n+\t.needs_kconfigs = (const char *[]) {\n+\t\t\"CONFIG_AIO=y\",\n+\t\tNULL\n+\t},\n+\t.bufs = (struct tst_buffers []) {\n+\t\t{&buf, .size = BUF_SIZE},\n+\t\t{&cb, .size = sizeof(iocb)},\n+\t\t{&iocbs, .size = sizeof(iocb *)},\n+\t\t{},\n+\t}\n+};\n","prefixes":["v7"]}