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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <darrick.wong@oracle.com>
*
* Ensure the kernel returns the new lastip even when ocount is null.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <xfs/xfs.h>
static void die(const char *tag)
{
perror(tag);
exit(1);
}
int main(int argc, char *argv[])
{
struct xfs_bstat bstat;
__u64 last;
struct xfs_fsop_bulkreq bulkreq = {
.lastip = &last,
.icount = 1,
.ubuffer = &bstat,
.ocount = NULL,
};
int ret;
int fd;
fd = open(argv[1], O_RDONLY);
if (fd < 0)
die(argv[1]);
last = 0;
ret = ioctl(fd, XFS_IOC_FSINUMBERS, &bulkreq);
if (ret)
die("inumbers");
if (last == 0)
printf("inumbers last = %llu\n", (unsigned long long)last);
last = 0;
ret = ioctl(fd, XFS_IOC_FSBULKSTAT, &bulkreq);
if (ret)
die("bulkstat");
if (last == 0)
printf("bulkstat last = %llu\n", (unsigned long long)last);
ret = close(fd);
if (ret)
die("close");
return 0;
}
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