On Fri, Nov 15, 2013 at 07:25:34PM +0800, Anand Jain wrote:
> static int btrfs_scan_kernel(void *search)
> {
> - int ret = 0, fd;
> - FILE *f;
> - struct mntent *mnt;
> - struct btrfs_ioctl_fs_info_args fs_info_arg;
> - struct btrfs_ioctl_dev_info_args *dev_info_arg = NULL;
> - struct btrfs_ioctl_space_args *space_info_arg;
> + int ret = 0;
> char label[BTRFS_LABEL_SIZE];
> -
> - f = setmntent("/proc/self/mounts", "r");
> - if (f == NULL)
> - return 1;
> -
> - memset(label, 0, sizeof(label));
> - while ((mnt = getmntent(f)) != NULL) {
> - if (strcmp(mnt->mnt_type, "btrfs"))
> + char mnt[BTRFS_PATH_NAME_MAX + 1];
> + struct btrfs_ioctl_fslist *fslist;
> + struct btrfs_ioctl_fslist *fslist_saved;
[CC] cmds-send.o
cmds-filesystem.c: In function ‘btrfs_scan_kernel’:
cmds-filesystem.c:461:29: warning: variable ‘fslist_saved’ set but not used [-Wunused-but-set-variable]
> + u64 cnt_fs;
> + int cnt_mnt;
> + __u8 *fsid;
> + __u64 flags;
> +
> + ret = get_fslist(&fslist, &cnt_fs);
> + if (ret)
> + return ret;
> + fslist_saved = fslist;
> + while (cnt_fs--) {
> + fsid = fslist->fsid;
> + flags = fslist->flags;
> + fslist++;
> + if (!(flags & BTRFS_FS_MOUNTED))
> continue;
> - ret = get_fs_info(mnt->mnt_dir, &fs_info_arg,
> - &dev_info_arg);
> + memset(mnt, 0, BTRFS_PATH_NAME_MAX + 1);
> + memset(label, 0, sizeof(label));
> + ret = fsid_to_mntpt(fsid, mnt, &cnt_mnt);
> if (ret)
> return ret;
> -
> - if (get_label_mounted(mnt->mnt_dir, label)) {
> - kfree(dev_info_arg);
> + if (get_label_mounted(mnt, label))
> return 1;
> - }
> - if (search && !match_search_item_kernel(fs_info_arg.fsid,
> - mnt->mnt_dir, label, search)) {
> - kfree(dev_info_arg);
> +
> + if (search && !match_search_item_kernel(fsid,
> + mnt, label, search))
> continue;
> - }
>
> - fd = open(mnt->mnt_dir, O_RDONLY);
> - if ((fd != -1) && !get_df(fd, &space_info_arg)) {
> - print_one_fs(&fs_info_arg, dev_info_arg,
> - space_info_arg, label, mnt->mnt_dir);
> - kfree(space_info_arg);
> - memset(label, 0, sizeof(label));
> - }
> - if (fd != -1)
> - close(fd);
> - kfree(dev_info_arg);
> + handle_print(mnt, label);
> if (search)
> return 0;
> }
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