From patchwork Mon Feb 24 21:20:46 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Al Viro X-Patchwork-Id: 13988964 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (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 D89D31DB365 for ; Mon, 24 Feb 2025 21:20:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740432057; cv=none; b=u3m+n5hHMS3mQQ3g+np/83Ahi8Od9RzxcvfoGuPOv+OixoOFuF+100R3TN/B6h99fOHTgUkbQOGht8z80lAxzGEYjSbcm53Z03bNtIXRhktDSUtPQlCdLYkBGCmxImIjvwLSEzE0HlxwTLqibQgqrXFUPeZdVpFtknlr5g5ObmE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740432057; c=relaxed/simple; bh=hSOG7xe+/GVqAfdCPIjEuY0FzmW4woWIO62hXEvnXjY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oi4nMphBS11v3n8BGXTIUjphzjwN765Eo3L8QUZ3fIyEB6nGn/AQ8go0iRYAtBnRQKCkEFAQLkObTQDOTZ6vCJ1AYf4IFD+OyTOxCi2qCQjzXgtCZzm2IHuBlotAnezbcRjSrjdYFiiPtUehG+xMoiIXFXBZ5C/UogNs5alXo0k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk; spf=none smtp.mailfrom=ftp.linux.org.uk; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b=Gd8vKzW8; arc=none smtp.client-ip=62.89.141.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=ftp.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b="Gd8vKzW8" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description; bh=kQxbqwabztLHj1KjTc0ureYK+atGoV7lXfY1w60QLO4=; b=Gd8vKzW80GoEfHiovQCaC7ea24 WCVTOW01dBif2tYqrOtF0ebMZjMVa74qXk5N3/H/suxm9tFXgNh055PNDwL4XEJh/9E++GYrYEyD5 JdBjjkOcSLOXTASkV69gOeyYqSdD5L8hr8baqU+YeVmpLhTUKXUxbMOTPsqJD9Gw6YJ9j3rUVlY3o fHkcBtdbgCww5wg1hLo8DKiREFSsMsW+cAXtPlXKLdJOb+wiPsuSu+q0G39lqGp1yGG3VWMGG02NB RzJdJVlGy5jBvvXf03FU65F9yuX25vJU+igvKN8YflEId+b0KGsmkI2EwoH9HHUu10vfVLNBaJD0J Fuy/gK6w==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.98 #2 (Red Hat Linux)) id 1tmfsj-00000007Mz2-1dtd; Mon, 24 Feb 2025 21:20:53 +0000 From: Al Viro To: linux-fsdevel@vger.kernel.org Cc: Linus Torvalds , Christian Brauner , Neil Brown , Miklos Szeredi , Jan Kara Subject: [PATCH 16/21] ramfs, hugetlbfs, mqueue: set DCACHE_DONTCACHE Date: Mon, 24 Feb 2025 21:20:46 +0000 Message-ID: <20250224212051.1756517-16-viro@zeniv.linux.org.uk> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250224212051.1756517-1-viro@zeniv.linux.org.uk> References: <20250224141444.GX1977892@ZenIV> <20250224212051.1756517-1-viro@zeniv.linux.org.uk> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Sender: Al Viro makes simple_lookup() slightly cheaper there. Signed-off-by: Al Viro Reviewed-by: Christian Brauner --- fs/hugetlbfs/inode.c | 1 + fs/ramfs/inode.c | 1 + ipc/mqueue.c | 1 + 3 files changed, 3 insertions(+) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 0fc179a59830..205dd7562be1 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1431,6 +1431,7 @@ hugetlbfs_fill_super(struct super_block *sb, struct fs_context *fc) sb->s_blocksize_bits = huge_page_shift(ctx->hstate); sb->s_magic = HUGETLBFS_MAGIC; sb->s_op = &hugetlbfs_ops; + sb->s_d_flags = DCACHE_DONTCACHE; sb->s_time_gran = 1; /* diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index 8006faaaf0ec..c4ee67870c4b 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -269,6 +269,7 @@ static int ramfs_fill_super(struct super_block *sb, struct fs_context *fc) sb->s_blocksize_bits = PAGE_SHIFT; sb->s_magic = RAMFS_MAGIC; sb->s_op = &ramfs_ops; + sb->s_d_flags = DCACHE_DONTCACHE; sb->s_time_gran = 1; inode = ramfs_get_inode(sb, NULL, S_IFDIR | fsi->mount_opts.mode, 0); diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 35b4f8659904..dbd5c74eecb2 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -411,6 +411,7 @@ static int mqueue_fill_super(struct super_block *sb, struct fs_context *fc) sb->s_blocksize_bits = PAGE_SHIFT; sb->s_magic = MQUEUE_MAGIC; sb->s_op = &mqueue_super_ops; + sb->s_d_flags = DCACHE_DONTCACHE; inode = mqueue_get_inode(sb, ns, S_IFDIR | S_ISVTX | S_IRWXUGO, NULL); if (IS_ERR(inode))