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SubjectRe: [PATCH v3] exfat: integrates dir-entry getting and validation
Thank you for your reply.

>> @@ -171,7 +174,9 @@ struct exfat_entry_set_cache {
>> unsigned int start_off;
>> int num_bh;
>> struct buffer_head *bh[DIR_CACHE_SIZE];
>> - unsigned int num_entries;
>> + int num_entries;
>> + struct exfat_de_file *de_file;
>> + struct exfat_de_stream *de_stream;
> I prefer to assign validated entries to **de and use it using enum value.
> struct exfat_dentry **de;

I've tried several implementations that add a struct exfat_dentry type.(*de0 & *de1; *de[2]; etc...)
The problem with the struct exfat_dentry type is that it is too flexible for type.
This means weak typing.
Therefore, when using them,
de[XXX_FILE]->dentry.file.zzz ...
It is necessary to re-specify the type. (against the DRY principle)
Strong typing prevents use with wrong type, at compiling.

I think the approach of using de_file/de_stream could be strongly typed.
I don't think we need excessive flexibility.

Tetsuhiro Kohada <>

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