linux-kernel - Re: [Outreachy kernel] [PATCH v5] staging: unisys: visorhba: Convert module from IDR to XArray

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Message-ID: <YJAlWJXDnK9KLg2H@kroah.com>
Date:   Mon, 3 May 2021 18:31:20 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     "Fabio M. De Francesco" <fmdefrancesco@...il.com>
Cc:     outreachy-kernel@...glegroups.com,
        David Kershner <david.kershner@...sys.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Daniel Vetter <daniel@...ll.ch>,
        Matthew Wilcox <willy@...radead.org>
Subject: Re: [Outreachy kernel] [PATCH v5] staging: unisys: visorhba: Convert
 module from IDR to XArray

On Tue, Apr 27, 2021 at 05:07:19PM +0200, Fabio M. De Francesco wrote:
> Converted visorhba from IDR to XArray. The abstract data type XArray is
> more memory-efficient, parallelisable and cache friendly. It takes
> advantage of RCU to perform lookups without locking.

And does any of that affect the runtime of this driver?

I would need this to be tested by the maintainer before I could do
anything, and a review from willy@ would be also appreciated as I'm
guessing he asked you to do this?

thanks,

greg k-h