On 9/15/22 8:42 PM, Jia Zhu wrote:
> struct erofs_fscache *erofs_fscache_register_cookie(struct super_block *sb,
> char *name, bool need_inode)
> {
> @@ -481,27 +578,18 @@ void erofs_fscache_unregister_cookie(struct erofs_fscache *ctx)
> int erofs_fscache_register_fs(struct super_block *sb)
> {
> struct erofs_sb_info *sbi = EROFS_SB(sb);
> - struct fscache_volume *volume;
> struct erofs_fscache *fscache;
> - char *name;
> - int ret = 0;
> -
> - name = kasprintf(GFP_KERNEL, "erofs,%s", sbi->opt.fsid);
> - if (!name)
> - return -ENOMEM;
> -
> - volume = fscache_acquire_volume(name, NULL, NULL, 0);
> - if (IS_ERR_OR_NULL(volume)) {
> - erofs_err(sb, "failed to register volume for %s", name);
> - kfree(name);
> - return volume ? PTR_ERR(volume) : -EOPNOTSUPP;
> - }
> + int ret;
>
> - sbi->volume = volume;
> - kfree(name);
> + if (sbi->opt.domain_id)
> + ret = erofs_fscache_register_domain(sb);
> + else
> + ret = erofs_fscache_register_volume(sb);
> + if (ret)
> + return ret;
>
> + /* acquired domain/volume will be relinquished in kill_sb() if error occurs */
"... in kill_sb() on error" is better to make this line within 80 chars
length.
> fscache = erofs_fscache_register_cookie(sb, sbi->opt.fsid, true);
> - /* acquired volume will be relinquished in kill_sb() */
> if (IS_ERR(fscache))
> return PTR_ERR(fscache);
>
--
Thanks,
Jingbo
