mirror of https://github.com/ceph/ceph
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <sys/ioctl.h>
|
|
#include <string.h>
|
|
|
|
#include <linux/ioctl.h>
|
|
#include <linux/types.h>
|
|
#include "../../src/os/btrfs_ioctl.h"
|
|
|
|
struct btrfs_ioctl_vol_args_v2 va;
|
|
struct btrfs_ioctl_vol_args vold;
|
|
int max = 4;
|
|
|
|
void check_return(int r)
|
|
{
|
|
if (r < 0) {
|
|
printf("********* failed with %d %s ********\n", errno, strerror(errno));
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int num = 1000;
|
|
|
|
if (argc > 1)
|
|
num = atoi(argv[1]);
|
|
printf("will do %d iterations\n", num);
|
|
|
|
int cwd = open(".", O_RDONLY);
|
|
printf("cwd = %d\n", cwd);
|
|
while (num-- > 0) {
|
|
if (rand() % 10 == 0) {
|
|
__u64 transid;
|
|
int r;
|
|
printf("sync starting\n");
|
|
r = ioctl(cwd, BTRFS_IOC_START_SYNC, &transid);
|
|
check_return(r);
|
|
printf("sync started, transid %lld, waiting\n", transid);
|
|
r = ioctl(cwd, BTRFS_IOC_WAIT_SYNC, &transid);
|
|
check_return(r);
|
|
printf("sync finished\n");
|
|
}
|
|
|
|
int i = rand() % max;
|
|
struct stat st;
|
|
va.fd = cwd;
|
|
sprintf(va.name, "test.%d", i);
|
|
va.transid = 0;
|
|
int r = stat(va.name, &st);
|
|
if (r < 0) {
|
|
if (rand() % 3 == 0) {
|
|
printf("snap create (sync) %s\n", va.name);
|
|
va.flags = 0;
|
|
r = ioctl(cwd, BTRFS_IOC_SNAP_CREATE_V2, &va);
|
|
check_return(r);
|
|
} else {
|
|
printf("snap create (async) %s\n", va.name);
|
|
va.flags = BTRFS_SUBVOL_CREATE_ASYNC;
|
|
r = ioctl(cwd, BTRFS_IOC_SNAP_CREATE_V2, &va);
|
|
check_return(r);
|
|
printf("snap created, transid %lld\n", va.transid);
|
|
if (rand() % 2 == 0) {
|
|
printf("waiting for async snap create\n");
|
|
r = ioctl(cwd, BTRFS_IOC_WAIT_SYNC, &va.transid);
|
|
check_return(r);
|
|
}
|
|
}
|
|
} else {
|
|
printf("snap remove %s\n", va.name);
|
|
vold.fd = va.fd;
|
|
strcpy(vold.name, va.name);
|
|
r = ioctl(cwd, BTRFS_IOC_SNAP_DESTROY, &vold);
|
|
check_return(r);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|