Re: [RFC PATCH 2/4] mm: shmem: Support case-insensitive file name lookups

[André Almeida]

Às 17:18 de 23/03/21, Gabriel Krisman Bertazi escreveu:
> André Almeida <andrealmeid@xxxxxxxxxxxxx> writes:
> >   	opt = fs_parse(fc, shmem_fs_parameters, param, &result);
> >   	if (opt < 0)
> > @@ -3468,6 +3519,23 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
> >   		ctx->full_inums = true;
> >   		ctx->seen |= SHMEM_SEEN_INUMS;
> >   		break;
> > +	case Opt_casefold:
> > +		if (strncmp(param->string, "utf8-", 5))
> > +			return invalfc(fc, "Only utf8 encondings are supported");
> > +		ret = strscpy(version, param->string + 5, sizeof(version));
>
> Ugh.  Now we are doing two strscpy for the parse api (in unicode_load).
> Can change the unicode_load api to reuse it?

So instead of getting just the version number (e.g. "12.1.0") as 
parameter, utf8_load/unicode_load would get the full encoding string 
(e.g. "utf8-12.1.0") right?