linux-kernel - RE: [PATCH v4 05/13] iov: Move iterator functions to a header file

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Date:   Thu, 14 Sep 2023 09:06:25 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'David Howells' <dhowells@...hat.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Linus Torvalds <torvalds@...ux-foundation.org>
CC:     Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>,
        "Christian Brauner" <christian@...uner.io>,
        Matthew Wilcox <willy@...radead.org>,
        "Jeff Layton" <jlayton@...nel.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v4 05/13] iov: Move iterator functions to a header file

From: David Howells
> Sent: 13 September 2023 17:57
> 
> Move the iterator functions to a header file so that other operations that
> need to scan over an iterator can be added.  For instance, the rbd driver
> could use this to scan a buffer to see if it is all zeros and libceph could
> use this to generate a crc.

These all look a bit big for being more generally inlined.

I know you want to avoid the indirect call in the normal cases,
but maybe it would be ok for other uses?

		David

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