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add defrag ioctl

master v0.6
Chris Mason 2007-08-07 16:15:59 -04:00 committed by David Woodhouse
parent 330f6227aa
commit 0528b69c15
4 changed files with 22 additions and 2 deletions
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11
btrfsctl.c
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@ -77,6 +77,12 @@ int main(int ac, char **av)
exit(1);
}
command = BTRFS_IOC_SNAP_CREATE;
} else if (strcmp(av[i], "-d") == 0) {
if (i >= ac - 1) {
fprintf(stderr, "-d requires an arg");
print_usage();
}
command = BTRFS_IOC_DEFRAG;
}
}
if (command == 0) {
@ -102,7 +108,10 @@ int main(int ac, char **av)
perror("open");
exit(1);
}
strcpy(args.name, name);
if (name)
strcpy(args.name, name);
else
args.name[0] = '\0';
ret = ioctl(fd, command, &args);
printf("ioctl returns %d\n", ret);
return 0;

2
ioctl.h
View File

@ -28,6 +28,6 @@ struct btrfs_ioctl_vol_args {
#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_ADD_DISK _IOW(BTRFS_IOCTL_MAGIC, 2, \
#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
struct btrfs_ioctl_vol_args)
#endif

1
mkfs.c
View File

@ -225,6 +225,7 @@ int mkfs(int fd, char *pathname, u64 num_blocks, u32 blocksize)
btrfs_set_inode_nblocks(inode_item, 1);
btrfs_set_inode_mode(inode_item, S_IFDIR | 0755);
// memset(&root_item, 0, sizeof(root_item));
btrfs_set_root_dirid(&root_item, 0);
btrfs_set_root_refs(&root_item, 1);
btrfs_set_disk_key_offset(&item.key, 0);

10
print-tree.c
View File

@ -96,6 +96,16 @@ void btrfs_print_leaf(struct btrfs_root *root, struct btrfs_leaf *l)
(unsigned long long)btrfs_root_blocknr(ri),
(unsigned long long)btrfs_root_dirid(ri),
btrfs_root_refs(ri));
if (1 || btrfs_root_refs(ri) == 0) {
struct btrfs_key drop_key;
btrfs_disk_key_to_cpu(&drop_key,
&ri->drop_progress);
printf("\t\tdrop key %Lu %x %Lu level %d\n",
(unsigned long long)drop_key.objectid,
drop_key.flags,
(unsigned long long)drop_key.offset,
ri->drop_level);
}
break;
case BTRFS_EXTENT_ITEM_KEY:
ei = btrfs_item_ptr(l, i, struct btrfs_extent_item);