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 7CAAC304972; Sat, 23 May 2026 17:56:17 +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=1779558978; cv=none; b=CTedX1hOW9QMD0LscWcvwBIIFTItobfRXOfcNMnGtHBUtMIf4o7mkV4w6PRh3KOQySATrGIALNYRqfJP/RkjwBhoHz1rAB/6+0fWgowJ3tbUE8sY3Ns1Ay0m/zPUJaJSbC4MeONRCxPDlmH001cxI7tUdX46KAv2mBmrH9k4tgQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779558978; c=relaxed/simple; bh=9jocJk3xNegPSqjFg768bKmBGXxSKUoFZQXOKLQq6xw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=O3i9vY+iJH3tKwTMt6A1rxVg/rQAdP0v29ah2Zy2jtzx3Ix5KvjJknvZfIDP+h/OpWPeTDcuV2OD7yEYG42lbF+8Msd8B1gKPe5CisAa1xFIeZcOfRKNeMTyIv58wgpoUPn41X93IVTfspZzAjZaEm9bByf3eEWeGZ4ZIaGwfYM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IPMImHOH; 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="IPMImHOH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 369561F00A3A; Sat, 23 May 2026 17:56:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779558977; bh=Lb9R1+4tK0UkG7ujaRwCAX/p5J9rcF0zL4gQIBfdRGo=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=IPMImHOHZX9R3AYIw3MrZ7UCgx62XFn7hoyyedz0iFQPJGvDjWaHpwmxJB5koBaxa /Zc5t8a2CPG487TQZEccpAsZr3Cf1rO92HRpgstttNSWqixLgLGXd0DvsUS9tZtlla d329bJbl/Atss8Vx+9BzQKI0uNEQtubea4TOBfBsFNekgNqOkGDqHmCQSubaFIZfAT TauGSVKvJQhiO+GYyWyay/Wiwy869ulfv9WbRoBbyef941Hh/lralRMIiBOuObnSZQ Z4Cg5jGvVivL+u0EWcq3emC3mmNYhjnSI624SUa8QgsCk9k0C1+RlnpQa3FfKJZTlc xbJ0tHiFeZ+0g== From: "Mike Rapoport (Microsoft)" Date: Sat, 23 May 2026 20:54:25 +0300 Subject: [PATCH 13/17] fs/select: replace __get_free_page() with kmalloc() Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260523-b4-fs-v1-13-275e36a83f0e@kernel.org> References: <20260523-b4-fs-v1-0-275e36a83f0e@kernel.org> In-Reply-To: <20260523-b4-fs-v1-0-275e36a83f0e@kernel.org> To: Jan Kara , Mark Fasheh , Joel Becker , Joseph Qi , Ryusuke Konishi , Viacheslav Dubeyko , Trond Myklebust , Anna Schumaker , Chuck Lever , Jeff Layton , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Alexander Viro , Christian Brauner , Jan Kara , Dave Kleikamp , Theodore Ts'o , Miklos Szeredi , Andreas Hindborg , Breno Leitao , Kees Cook , "Tigran A. Aivazian" Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, ocfs2-devel@lists.linux.dev, linux-nilfs@vger.kernel.org, linux-nfs@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-ext4@vger.kernel.org, linux-mm@kvack.org, "Mike Rapoport (Microsoft)" X-Mailer: b4 0.15.2 poll_get_entry() allocates new memory for poll_table entries using __get_free_page(). kmalloc() is a better API for such use and it also provides better scalability and more debugging possibilities. Replace use of __get_free_page() with kmalloc(). Signed-off-by: Mike Rapoport (Microsoft) --- fs/select.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/select.c b/fs/select.c index 75978b18f48f..6fa63e48cdee 100644 --- a/fs/select.c +++ b/fs/select.c @@ -150,7 +150,7 @@ void poll_freewait(struct poll_wqueues *pwq) } while (entry > p->entries); old = p; p = p->next; - free_page((unsigned long) old); + kfree(old); } } EXPORT_SYMBOL(poll_freewait); @@ -165,7 +165,7 @@ static struct poll_table_entry *poll_get_entry(struct poll_wqueues *p) if (!table || POLL_TABLE_FULL(table)) { struct poll_table_page *new_table; - new_table = (struct poll_table_page *) __get_free_page(GFP_KERNEL); + new_table = kmalloc(PAGE_SIZE, GFP_KERNEL); if (!new_table) { p->error = -ENOMEM; return NULL; -- 2.53.0