From nobody Thu Dec 18 05:55:07 2025 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 2C4BB16B732 for ; Fri, 21 Jun 2024 05:42:23 +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=1718948543; cv=none; b=GrWi8cQIc+HBpsTLbTt9JzSATEEAgSxUxYVbo8gPWmHNCptY8bpfqpk0tcSpNNg+KiwjuqLmelmGm80JW1943UkY5pFGeDxAtxr3Hlt/wQ/dlpjjiTSZThEMoK19A924M3Ag643VrfMsSKFH6Z0TpSvwx4pvr09zPER4musDg90= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718948543; c=relaxed/simple; bh=Aj59HBvyuIXaYaW1di/3HOtWKFIv4GVuFVxywiNiDA0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=clXw2LsGJTNKDlEq7kJTP8JF43mbInAMXcZ1MBeDQDzOJObkkcQ5MUEXv3wJmPPitsxCDKOx9yBNzMrhQ2pYb4mrqFtIC2+VLRh1H1X/EHL4K5pqdq5KAH3lSC7ezalKMezNBGHgsUTWMz22O5teTxj5xM0RLDTzeUPRVCfBgNI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EsKyTF1/; 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="EsKyTF1/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5FEAEC4AF07; Fri, 21 Jun 2024 05:42:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718948542; bh=Aj59HBvyuIXaYaW1di/3HOtWKFIv4GVuFVxywiNiDA0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EsKyTF1/bKjYshawlayijtDnP8TUPAZKDtD/Mh/KT6Qq+EEO2S0IMoRSTTzJEp6WC rP1rbJdiN/rO43GsAOREos0OE0VzeKq9mxgnIr9xFw7ZVhj7pzSyzr6JDu7wmazDBE m8dwTE+C2Jn8TGnK9a1VrQHMluBY35EUgoAJKifG2p8UTdMFjLU4NvH4v9LT+ayQoK G0nwEdswmMNrjjmAz/ob2PsABybafsKanTwqe6OWhN6IkJQvNEl02+twpanS7M8zRm 6Y4lxyxLowIGC/YcvclDu1cpRRheNG0WyDbEusaKHHJU/rHddJ0Vu17098evnuFyRQ t5biyiMG26RoA== From: alexs@kernel.org To: Vitaly Wool , Miaohe Lin , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, minchan@kernel.org, willy@infradead.org, senozhatsky@chromium.org, david@redhat.com, 42.hyeyoo@gmail.com Cc: Alex Shi Subject: [PATCH 06/15] mm/z3fold: use zpdesc in free_z3fold_page Date: Fri, 21 Jun 2024 13:46:46 +0800 Message-ID: <20240621054658.1220796-7-alexs@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240621054658.1220796-1-alexs@kernel.org> References: <20240621054658.1220796-1-alexs@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Alex Shi Convert page to zpdesc in free_z3fold_page and introduce new helper zpdesc_lock/unlock. this patch could saves about 10kbytes on object file size. Signed-off-by: Alex Shi --- mm/z3fold.c | 10 ++++++---- mm/zpdesc.h | 10 ++++++++++ 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/mm/z3fold.c b/mm/z3fold.c index cd1332243c62..c3c740b42052 100644 --- a/mm/z3fold.c +++ b/mm/z3fold.c @@ -351,12 +351,14 @@ static struct z3fold_header *init_z3fold_page(struct = page *page, bool headless, /* Resets the struct page fields and frees the page */ static void free_z3fold_page(struct page *page, bool headless) { + struct zpdesc *zpdesc =3D page_zpdesc(page); + if (!headless) { - lock_page(page); - __ClearPageMovable(page); - unlock_page(page); + zpdesc_lock(zpdesc); + __ClearPageMovable(zpdesc_page(zpdesc)); + zpdesc_unlock(zpdesc); } - __free_page(page); + __free_page(zpdesc_page(zpdesc)); } =20 /* Helper function to build the index */ diff --git a/mm/zpdesc.h b/mm/zpdesc.h index 7fde29645331..06cfd33de330 100644 --- a/mm/zpdesc.h +++ b/mm/zpdesc.h @@ -58,4 +58,14 @@ static inline void zpdesc_put(struct zpdesc *zpdesc) folio_put(zpdesc_folio(zpdesc)); } =20 +static inline void zpdesc_lock(struct zpdesc *zpdesc) +{ + folio_lock(zpdesc_folio(zpdesc)); +} + +static inline void zpdesc_unlock(struct zpdesc *zpdesc) +{ + folio_unlock(zpdesc_folio(zpdesc)); +} + #endif --=20 2.43.0