linux-kernel - Re: [PATCH v10 1/8] iov_iter: Define flags to qualify page extraction.

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Message-ID: <e7d476d7-e201-86a3-9683-c2a559fc2f5b@redhat.com>
Date:   Thu, 26 Jan 2023 10:52:19 +0100
From:   David Hildenbrand <david@...hat.com>
To:     David Howells <dhowells@...hat.com>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Christoph Hellwig <hch@...radead.org>,
        Matthew Wilcox <willy@...radead.org>,
        Jens Axboe <axboe@...nel.dk>, Jan Kara <jack@...e.cz>,
        Jeff Layton <jlayton@...nel.org>,
        Jason Gunthorpe <jgg@...dia.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Christoph Hellwig <hch@....de>,
        John Hubbard <jhubbard@...dia.com>
Subject: Re: [PATCH v10 1/8] iov_iter: Define flags to qualify page
 extraction.

On 26.01.23 10:49, David Howells wrote:
> David Hildenbrand <david@...hat.com> wrote:
> 
>> Just a note that the usage of new __bitwise types instead of "unsigned" is
>> encouraged for flags.
>>
>> See rmap_t in include/linux/rmap.h as an example.
> 
> Hmmm...  rmap_t really ought to be unsigned int.

Not sure if that particularly matters here in practice, ... anyhow

$ git grep "typedef int" | grep __bitwise | wc -l
27
$ git grep "typedef unsigned" | grep __bitwise | wc -l
23

So chose what you prefer ;)


-- 
Thanks,

David / dhildenb