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Bug #24137 » test_trim_caps.cc

Zheng Yan, 05/17/2018 08:42 AM

 
#define _FILE_OFFSET_BITS 64
#include <features.h>
#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 <cephfs/libcephfs.h>

int main(int argc, char *argv[])
{
char buf;
int pipefd[2];
pipe(pipefd);

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, "/etc/ceph/ceph.conf");

int ret = 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 = 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");
pause();
}
return 0;
}

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