From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E98BB21FF5C for ; Mon, 4 Aug 2025 16:26:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754324791; cv=none; b=WL9XrGccddSibBGK3b6DsxMSPTteTNIxJcOQLJslPE7/X3evou3Os0Pjh1XCmH6X00acvDW0zh4PvR9QAqHZwIp2kYsX+ncYNbR+94aJ4fzP01qbyGdguP1rEIZdTkCC13TzZcTNsv7dvXaQQDxDRN8oIHs7zzgNCAscWxWefOk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754324791; c=relaxed/simple; bh=L5ACyzAlA0YlxAF7uYe/Bpae6JGRGz2cx1uIB+/4ZTc=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=uZpEVie7U3PGWwZftYGOM1mRQN0EAIq2irAlyrxmb0rBourEEVfV5TWldCqHACEnrsFx9FfLYnOEuQqoXNku23GtMCDNnqLyMC2WbxDSvmWhlCBy3dgbRjKNR9LwdY+E7CpsGCAdCgiSER6xdjqXxdbz/S2cWAcIvGDrd+Y+cv4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=W+bYsi7N; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="W+bYsi7N" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C86D0C4CEE7; Mon, 4 Aug 2025 16:26:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754324790; bh=L5ACyzAlA0YlxAF7uYe/Bpae6JGRGz2cx1uIB+/4ZTc=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=W+bYsi7NBjs3nD34FDIGMu1pn3rCxNEOgweJjcvVNxgjiYW2/sUWAcgdYh1tRRZWZ GxcToDthAhyDufHnjIqhBh9Dtr60ZrOR0vFR68G/fwmN3+hZkSzMMxsPFUxS0YyY4g z6mWIwGrwoVkG4VNMIn+BgI37IfyBe9NjTLvXmYvQ5GK0/L/XAZtx03I+ohfCDIg6D ObTk9DOyn3tDSq/r/oYP/c9Hy3iLJAJrM7AIzF+dQAiE+0Dr+0CwwRjLqr51Nc634p Qc0Jj8zjQr35qvQ4zSZWfEtu9OTD0CS8MNB03m8Owvrvc29w6LN7I/PHx9T1z5lYWU gb6/Ht7IDBdmw== Message-ID: <51c6bdaca7b9cde34a3114208283098de827b639.camel@kernel.org> Subject: Re: [RFC PATCH v1 08/10] mm: refactor clearing dirty stats into helper function From: Jeff Layton To: Joanne Koong , linux-mm@kvack.org, brauner@kernel.org Cc: willy@infradead.org, jack@suse.cz, hch@infradead.org, djwong@kernel.org, linux-fsdevel@vger.kernel.org, kernel-team@meta.com Date: Mon, 04 Aug 2025 12:26:28 -0400 In-Reply-To: <20250801002131.255068-9-joannelkoong@gmail.com> References: <20250801002131.255068-1-joannelkoong@gmail.com> <20250801002131.255068-9-joannelkoong@gmail.com> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv 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linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2025-07-31 at 17:21 -0700, Joanne Koong wrote: > Move logic for clearing dirty stats into a helper function > both folio_account_cleaned() and __folio_clear_dirty_for_io() invoke. >=20 > Signed-off-by: Joanne Koong > --- > mm/page-writeback.c | 23 ++++++++++++----------- > 1 file changed, 12 insertions(+), 11 deletions(-) >=20 > diff --git a/mm/page-writeback.c b/mm/page-writeback.c > index c1fec76ee869..f5916711db2d 100644 > --- a/mm/page-writeback.c > +++ b/mm/page-writeback.c > @@ -2703,6 +2703,14 @@ static void folio_account_dirtied(struct folio *fo= lio, > } > } > =20 > +static void __clear_dirty_for_io_stats(struct folio *folio, > + struct bdi_writeback *wb, long nr_pages) > +{ > + lruvec_stat_mod_folio(folio, NR_FILE_DIRTY, -nr_pages); > + zone_stat_mod_folio(folio, NR_ZONE_WRITE_PENDING, -nr_pages); > + wb_stat_mod(wb, WB_RECLAIMABLE, -nr_pages); > +} > + > /* > * Helper function for deaccounting dirty page without writeback. > * > @@ -2711,9 +2719,7 @@ void folio_account_cleaned(struct folio *folio, str= uct bdi_writeback *wb) > { > long nr =3D folio_nr_pages(folio); > =20 > - lruvec_stat_mod_folio(folio, NR_FILE_DIRTY, -nr); > - zone_stat_mod_folio(folio, NR_ZONE_WRITE_PENDING, -nr); > - wb_stat_mod(wb, WB_RECLAIMABLE, -nr); > + __clear_dirty_for_io_stats(folio, wb, nr); > task_io_account_cancelled_write(nr * PAGE_SIZE); > } > =20 > @@ -2977,14 +2983,9 @@ static bool __folio_clear_dirty_for_io(struct foli= o *folio, bool update_stats) > */ > wb =3D unlocked_inode_to_wb_begin(inode, &cookie); > if (folio_test_clear_dirty(folio)) { > - if (update_stats) { > - long nr =3D folio_nr_pages(folio); > - lruvec_stat_mod_folio(folio, NR_FILE_DIRTY, > - -nr); > - zone_stat_mod_folio(folio, > - NR_ZONE_WRITE_PENDING, -nr); > - wb_stat_mod(wb, WB_RECLAIMABLE, -nr); > - } > + if (update_stats) > + __clear_dirty_for_io_stats(folio, wb, > + folio_nr_pages(folio)); > ret =3D true; > } > unlocked_inode_to_wb_end(inode, &cookie); This seems like a nice cleanup that isn't dependent on the rest of the series. Reviewed-by: Jeff Layton