1 files changed, 85 insertions, 0 deletions
diff --git a/src/test/fs/test_trim_caps.cc b/src/test/fs/test_trim_caps.cc
new file mode 100644
index 000000000..11acabb0a
--- /dev/null
+++ b/src/test/fs/test_trim_caps.cc
@@ -0,0 +1,85 @@
+#define _FILE_OFFSET_BITS 64
+#if defined(__linux__)
+#include <features.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <assert.h>
+#include <unistd.h>
+#include <include/cephfs/libcephfs.h>
+
+int main(int argc, char *argv[]) 
+{
+	char buf;
+	int pipefd[2];
+	int rc [[maybe_unused]] = pipe(pipefd);
+        assert(rc >= 0);
+
+	pid_t pid = fork();
+	assert(pid >= 0);
+	if (pid == 0)
+		close(pipefd[1]);
+	else
+		close(pipefd[0]);
+
+	struct ceph_mount_info *cmount = NULL;
+
+	ceph_create(&cmount, "admin");
+	ceph_conf_read_file(cmount, NULL);
+
+	int ret [[maybe_unused]] = ceph_mount(cmount, NULL);
+	assert(ret >= 0);
+
+	if (pid == 0) {
+		ret = read(pipefd[0], &buf, 1);
+		assert(ret == 1);
+
+		ret = ceph_rename(cmount, "1", "3");
+		assert(ret >= 0);
+
+		ret = ceph_rename(cmount, "2", "1");
+		assert(ret >= 0);
+
+		ceph_unmount(cmount);
+		printf("child exits\n");
+	} else {
+		ret = ceph_mkdirs(cmount, "1/2", 0755);
+		assert(ret >= 0);
+
+		struct ceph_statx stx;
+		ret = ceph_statx(cmount, "1", &stx, 0, 0);
+		assert(ret >= 0);
+		uint64_t orig_ino [[maybe_unused]] = stx.stx_ino;
+
+
+		ret = ceph_mkdir(cmount, "2", 0755);
+		assert(ret >= 0);
+
+		ret = write(pipefd[1], &buf, 1);
+		assert(ret == 1);
+
+		int wstatus;
+		ret = waitpid(pid, &wstatus, 0);
+		assert(ret >= 0);
+		assert(wstatus == 0);
+
+		// make origin '1' no parent dentry
+		ret = ceph_statx(cmount, "1", &stx, 0, 0);
+		assert(ret >= 0);
+		assert(orig_ino != stx.stx_ino);
+
+		// move root inode's cap_item to tail of session->caps
+		ret = ceph_statx(cmount, ".", &stx, 0, 0);
+		assert(ret >= 0);
+
+		printf("waiting for crash\n");
+        sleep(60);
+	}
+	return 0;
+}