linux-kernel - Re: [PATCH v14 023/138] mm/swap: Add folio_rotate

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1796499.1628609745@warthog.procyon.org.uk>
Date:   Tue, 10 Aug 2021 16:35:45 +0100
From:   David Howells <dhowells@...hat.com>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     dhowells@...hat.com, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
        Vlastimil Babka <vbabka@...e.cz>,
        William Kucharski <william.kucharski@...cle.com>,
        Christoph Hellwig <hch@....de>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: Re: [PATCH v14 023/138] mm/swap: Add folio_rotate_reclaimable()

Matthew Wilcox (Oracle) <willy@...radead.org> wrote:

> Convert rotate_reclaimable_page() to folio_rotate_reclaimable().  This
> eliminates all five of the calls to compound_head() in this function,
> saving 75 bytes at the cost of adding 15 bytes to its one caller,
> end_page_writeback().  We also save 36 bytes from pagevec_move_tail_fn()
> due to using folios there.  Net 96 bytes savings.
> 
> Also move its declaration to mm/internal.h as it's only used by filemap.c.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
> Acked-by: Vlastimil Babka <vbabka@...e.cz>
> Reviewed-by: William Kucharski <william.kucharski@...cle.com>
> Reviewed-by: Christoph Hellwig <hch@....de>
> Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

Reviewed-by: David Howells <dhowells@...hat.com>