linux-kernel - Re: [PATCH v3 2/6] mm: remove swap_free() and always use swap_free

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Date: Fri, 3 May 2024 21:03:44 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Chris Li <chrisl@...nel.org>
Cc: Ryan Roberts <ryan.roberts@....com>, Barry Song <21cnbao@...il.com>,
	akpm@...ux-foundation.org, linux-mm@...ck.org,
	baolin.wang@...ux.alibaba.com, david@...hat.com,
	hanchuanhua@...o.com, hannes@...xchg.org, hughd@...gle.com,
	kasong@...cent.com, linux-kernel@...r.kernel.org, surenb@...gle.com,
	v-songbaohua@...o.com, willy@...radead.org, xiang@...nel.org,
	ying.huang@...el.com, yosryahmed@...gle.com, yuzhao@...gle.com,
	ziy@...dia.com, "Rafael J. Wysocki" <rafael@...nel.org>,
	Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>
Subject: Re: [PATCH v3 2/6] mm: remove swap_free() and always use
 swap_free_nr()

On Fri, May 03, 2024 at 01:37:06PM -0700, Chris Li wrote:
> Either way works. It will produce the same machine code. I have a
> slight inclination to just drop swap_free(entry) API so that it
> discourages the caller to do a for loop over swap_free().

Then just ad the number of entries parameter to swap_free and do away
with the separate swap_free_nr.