diff options
Diffstat (limited to 'btrfsctl.c')
| -rw-r--r-- | btrfsctl.c | 15 |
1 files changed, 14 insertions, 1 deletions
@@ -46,7 +46,7 @@ static inline int ioctl(int fd, int define, void *arg) { return 0; } static void print_usage(void) { printf("usage: btrfsctl [ -d file|dir] [ -s snap_name subvol|tree ]\n"); - printf(" [-r size] [-A device] [-a] [-c]\n"); + printf(" [-r size] [-A device] [-a] [-c] [-D dir .]\n"); printf("\t-d filename: defragments one file\n"); printf("\t-d directory: defragments the entire Btree\n"); printf("\t-s snap_name dir: creates a new snapshot of dir\n"); @@ -55,6 +55,7 @@ static void print_usage(void) printf("\t-A device: scans the device file for a Btrfs filesystem\n"); printf("\t-a: scans all devices for Btrfs filesystems\n"); printf("\t-c: forces a single FS sync\n"); + printf("\t-D: delete snapshot\n"); printf("%s\n", BTRFS_BUILD_VERSION); exit(1); } @@ -158,6 +159,18 @@ int main(int ac, char **av) print_usage(); } command = BTRFS_IOC_DEFRAG; + } else if (strcmp(av[i], "-D") == 0) { + if (i >= ac - 1) { + fprintf(stderr, "-D requires an arg\n"); + print_usage(); + } + command = BTRFS_IOC_SNAP_DESTROY; + name = av[i + 1]; + len = strlen(name); + if (len == 0 || len >= BTRFS_VOL_NAME_MAX) { + fprintf(stderr, "-D size too long\n"); + exit(1); + } } else if (strcmp(av[i], "-A") == 0) { if (i >= ac - 1) { fprintf(stderr, "-A requires an arg\n"); |