From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 CF42646C838 for ; Wed, 5 Aug 2026 12:20:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785932454; cv=none; b=HmTF5t+F4rGivzIRaEKxa34NZ7wlqOkBk8kOwtoj8AO773OhQphDq8MYeh+WSFL7DPRN7af4zZ82C2XIHoP1Rio3C5XBxqr3ImYEO3qjeiJRUvegiP58JHEcmLVM0ggGyd/MwR3dtQIPt7WtcUq6JFh51haDvCCE+t9gbNDvJjI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785932454; c=relaxed/simple; bh=nGQXRcyNqb0vsdFB7Q0R8uWpB2KFdAa7u25A28IWvcA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=M2+lqVC4lHz/Qz7XmqSRPccFEHa3+4I5JwUJfjX9LzD5L1menBR+ZcACyeeDNIpegaGjIXpbuQtQMz++AHe5FbN2JLTch0nWvqd2cFJT6USevPcGE4CiyNj712LTsIJkSjEDCX8RBKQpAAXsfYNIvo6akMlWo/0fkZLT14K7ClI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gZoKY76/; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gZoKY76/" 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== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu Subject: [PATCH] f2fs: avoid unnecessary shrink in f2fs_shrink_scan() 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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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