linux-kernel - Re: [PATCH 1/3] xarray: add xa

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Message-ID: <Zrn_J_Yo4-BY-SHc@casper.infradead.org>
Date: Mon, 12 Aug 2024 13:25:11 +0100
From: Matthew Wilcox <willy@...radead.org>
To: Christoph Hellwig <hch@....de>
Cc: Chandan Babu R <chandan.babu@...cle.com>,
	"Darrick J. Wong" <djwong@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 1/3] xarray: add xa_set

On Mon, Aug 12, 2024 at 08:31:00AM +0200, Christoph Hellwig wrote:
> Add a convenience wrapper or xa_store that returns an error value when
> there is an existing entry instead of the old entry.  This simplifies
> code that wants to check that it is never overwriting an existing
> entry.

How is that different from xa_insert()?