[PATCH v1 2/2] fstress: add suport for using liburing getxattr

[Stefan Roesch <shr@fb.com>]

Summary:

Liburing added support for getxattr. This change adds
support for this this in fsstress when fsstress is built
with liburing support.

Signed-off-by: Stefan Roesch <shr@fb.com>
---
 ltp/fsstress.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 46 insertions(+), 2 deletions(-)

diff --git a/ltp/fsstress.c b/ltp/fsstress.c
index 4a5c4afe..df7820d6 100644
--- a/ltp/fsstress.c
+++ b/ltp/fsstress.c
@@ -3895,6 +3895,42 @@ getdents_f(opnum_t opno, long r)
 	closedir(dir);
 }
 
+static int
+io_uring_getxattr(const char *path, const char *name, void *value, size_t size)
+{
+	struct io_uring_sqe *sqe;
+	struct io_uring_cqe *cqe;
+	int ret;
+
+	sqe = io_uring_get_sqe(&ring);
+	if (!sqe) {
+		printf("io_uring_get_sqe failed\n");
+		ret = -1;
+		goto out;
+	}
+
+	io_uring_prep_getxattr(sqe, name, value, path, size);
+
+	ret = io_uring_submit_and_wait(&ring, 1);
+	if (ret != 1) {
+		printf("io_uring_submit_and_wait failed, ret=%d\n", ret);
+		ret = -1;
+		goto out;
+    	}
+
+	ret = io_uring_wait_cqe(&ring, &cqe);
+	if (ret < 0) {
+		printf("io_uring_wait_cqe failed, ret=%d\n", ret);
+		goto out;
+	}
+
+	ret = cqe->res;
+	io_uring_cqe_seen(&ring, cqe);
+
+out:
+	return ret;
+}
+
 void
 getfattr_f(opnum_t opno, long r)
 {
@@ -3932,7 +3968,11 @@ getfattr_f(opnum_t opno, long r)
 		goto out;
 	}
 
-	value_len = getxattr(f.path, name, NULL, 0);
+	if (have_io_uring)
+        	value_len = io_uring_getxattr(f.path, name, NULL, 0);
+    	else
+        	value_len = getxattr(f.path, name, NULL, 0);
+
 	if (value_len < 0) {
 		if (v)
 			printf("%d/%lld: getfattr file %s name %s failed %d\n",
@@ -3954,7 +3994,11 @@ getfattr_f(opnum_t opno, long r)
 		goto out;
 	}
 
-	e = getxattr(f.path, name, value, value_len) < 0 ? errno : 0;
+	if (have_io_uring)
+		e = io_uring_getxattr(f.path, name, value, value_len);
+	else
+		e = getxattr(f.path, name, value, value_len) < 0 ? errno : 0;
+
 out_log:
 	if (v)
 		printf("%d/%lld: getfattr file %s name %s value length %d %d\n",
-- 
2.30.2