[PATCH liburing 1/1] io_uring: update buffer update feature testing
From: Pavel Begunkov <asml.silence@gmail.com>
Date: 2021-08-26 11:13:55
Subsystem:
the rest · Maintainer:
Linus Torvalds
IORING_FEAT_RSRC_TAGS came late, and it's the best way to check if a ring supports resource (i.e. buffer or file) tagging and dynamic buffer updates. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> --- test/rsrc_tags.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/test/rsrc_tags.c b/test/rsrc_tags.c
index 337fbb8..a82ba21 100644
--- a/test/rsrc_tags.c
+++ b/test/rsrc_tags.c@@ -75,17 +75,17 @@ static int update_rsrc(struct io_uring *ring, int type, int nr, int off, static bool has_rsrc_update(void) { struct io_uring ring; - char buf[1024]; - struct iovec vec = {.iov_base = buf, .iov_len = sizeof(buf), }; int ret; ret = io_uring_queue_init(1, &ring, 0); - if (ret) - return false; + if (ret) { + fprintf(stderr, "io_uring_queue_init() failed, %d\n", ret); + exit(1); + } - ret = register_rsrc(&ring, TEST_IORING_RSRC_BUFFER, 1, &vec, NULL); + ret = ring.features & IORING_FEAT_RSRC_TAGS; io_uring_queue_exit(&ring); - return ret != -EINVAL; + return ret; } static int test_tags_generic(int nr, int type, void *rsrc, int ring_flags)
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2.32.0