From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 11BB0C56203 for ; Wed, 5 Aug 2026 12:21:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.sourceforge.net; s=beta; h=Content-Transfer-Encoding:Content-Type:Cc: Reply-To:From:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Subject:MIME-Version:Message-ID:Date:To:Sender: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=t7lRBg2mcjKjPDmKPdatAbbXji8+dl9xGlH/3yZYVlg=; b=bM5pbCpEG7xY3ku5nm3wENDmeB IdBAktYHV29Q9u2yqjQZOElhgGwPssSyJIgKsXSfmsK2D7E2U5TjL3TGtuAINE0xUOXyEHnNm0WvI zZUl8xup8UnnUcjn+UiqHwe61QhUCwE1w54shkqL+OYZ8BNPt/oF/RXHTlIfPf+aYJls=; Received: from [127.0.0.1] (helo=sfs-ml-3.v29.lw.sourceforge.com) by sfs-ml-3.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1wracG-0007Fz-TX; Wed, 05 Aug 2026 12:21:01 +0000 Received: from [172.30.29.66] (helo=mx.sourceforge.net) by sfs-ml-3.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1wracG-0007Fs-6I for linux-f2fs-devel@lists.sourceforge.net; Wed, 05 Aug 2026 12:21:00 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:Message-ID: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=WNxh06U8c10UoW/QQJLEF2gawLBuvh3FT0mFlT+rOco=; b=UzBcJQfElNPRxFU8VA/2MUZlkO ajrMzBhSJyGPykV6C14LhAnOqt/q0gpZWCmhfGO9oOoVBZHcFeAOe4cQQEo92Z9b9IsAVMG+7lSAQ xJ8LSmDyis+OMPHEXiJEclif7Ks+Lv36AiYh2mJPPTZPitzWK3JB5S6d4OAlUEo82MCM=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:Cc:To:From :Sender:Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=WNxh06U8c10UoW/QQJLEF2gawLBuvh3FT0mFlT+rOco=; b=a ZaGPrEarz+mAOGEl1jk1Gy4bQv2ZsUQDkT/cixcyd/1GsID2EZJ4yXQV5pB1d7qfsIAxEVmqnhp/1 6dxwELU4S8tC1ClJd2ooZ+kKVLBtwHrmfy07yKn58+zRZ2SU8ib1kaKKVVjaABzXfRUTrFWn45MU3 s1hxaK0dD09hE1vE=; Received: from sea.source.kernel.org ([172.234.252.31]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1wracF-0000OW-3s for linux-f2fs-devel@lists.sourceforge.net; Wed, 05 Aug 2026 12:21:00 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id B7BB0407EE for ; Wed, 5 Aug 2026 12:20:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BCD521F00A3F; Wed, 5 Aug 2026 12:20:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785932453; bh=WNxh06U8c10UoW/QQJLEF2gawLBuvh3FT0mFlT+rOco=; h=From:To:Cc:Subject:Date; b=gZoKY76/4inKUQi+f/1m/MQ9N9fphbn5hPiveoQo067GMkff+vCrMfJDeY5zhN+up DyzgwLjTBBVNozMg2SLLVNjgLRIkmYFWp46A6Jzzlujz3vbxEr5Alys/FrcfrUgb8j mxGSXb/ppk71635pfyJ7iFJSmBAUffY8QGRJN6FnW71aWN5CytAASogrYILTHPBEkE Km6rzZKm6xV2Mx+AczRnHUudeWPUkFFBkuQZ1vVJ30kOI3aoM0MxqyO06Nx8ybET00 A7LknB2K6XsfmCUhxyHEsTMuOfzD88RiDdG2OiBFShuiZQnsmFu/urtZfsel/v/9BT nHY8ppLu1ng8Q== To: jaegeuk@kernel.org Date: Wed, 5 Aug 2026 12:20:50 +0000 Message-ID: <20260805122050.665256-1-chao@kernel.org> X-Mailer: git-send-email 2.55.0.654.g21b8a5bc05-goog MIME-Version: 1.0 X-Headers-End: 1wracF-0000OW-3s Subject: [f2fs-dev] [PATCH] f2fs: avoid unnecessary shrink in f2fs_shrink_scan() X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Chao Yu via Linux-f2fs-devel Reply-To: Chao Yu Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net In f2fs_shrink_scan(), let's check if we have already shrinked enough number of memory before calling f2fs_shrink_read_extent_tree(). Signed-off-by: Chao Yu --- fs/f2fs/shrinker.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c index b88babcf6ab4..4f6bf5926de4 100644 --- a/fs/f2fs/shrinker.c +++ b/fs/f2fs/shrinker.c @@ -109,7 +109,8 @@ unsigned long f2fs_shrink_scan(struct shrinker *shrink, freed += f2fs_shrink_age_extent_tree(sbi, nr >> 2); /* shrink read extent cache entries */ - freed += f2fs_shrink_read_extent_tree(sbi, nr >> 2); + if (freed < nr) + freed += f2fs_shrink_read_extent_tree(sbi, nr >> 2); /* shrink clean nat cache entries */ if (freed < nr) -- 2.49.0 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel