mirror of
https://github.com/ceph/ceph
synced 2024-12-25 04:43:17 +00:00
35 lines
757 B
C
35 lines
757 B
C
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <string.h>
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#include "../../src/os/btrfs_ioctl.h"
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struct btrfs_ioctl_vol_args_v2 va;
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int main(int argc, char **argv)
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{
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int fd;
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int r;
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if (argc != 3) {
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printf("usage: %s <source subvol> <name>\n", argv[0]);
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return 1;
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}
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printf("creating snap ./%s from %s\n", argv[2], argv[1]);
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fd = open(".", O_RDONLY);
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va.fd = open(argv[1], O_RDONLY);
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va.flags = BTRFS_SUBVOL_CREATE_ASYNC;
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strcpy(va.name, argv[2]);
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r = ioctl(fd, BTRFS_IOC_SNAP_CREATE_V2, (unsigned long long)&va);
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printf("result %d\n", r ? -errno:0);
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return r;
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}
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