From patchwork Sat Aug 27 06:58:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 12956800 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5840EC6FA85 for ; Sat, 27 Aug 2022 07:01:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232964AbiH0HBi (ORCPT ); Sat, 27 Aug 2022 03:01:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231880AbiH0HBe (ORCPT ); Sat, 27 Aug 2022 03:01:34 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F414E8FD49; Sat, 27 Aug 2022 00:01:33 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8ADAC610A4; Sat, 27 Aug 2022 07:01:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A5FB4C433B5; Sat, 27 Aug 2022 07:01:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661583692; bh=8UZ3nfyjvR/tlY+3mxGCVsnHwuM9TQPRtN/Xaf4/Y3k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ow3GS9VpEWEwaBcfZsOmQP3mhfwpOEhyaxUiMt1sumBXKJzOjeWFbPUm+P0JSfHsg VtA6vPA/q4JLRxmxt2pGM5L693TcfBzdpgRm/EFZ1NZhJ6lfmYUel8pwvNZoifkQds JXuuBeZheUzAFx5xwRSEwfEQO8LFPmen2nLAipWnVExDTkuoBDj8j0a1B0MO0mG8SF xmekiN4n+XelAPcJSWJRL6/k2QglePYbdIO7cyDRxuiPHYT1b7K6GPDXEhkT1VFn56 wEi6KFndg39w3zleKkYb/RGdzMpBQZtBoqG0/n6XWum3PyNszMiwFUD4a4geFjHMfC C3oDVdTYXnQ1g== From: Eric Biggers To: linux-fsdevel@vger.kernel.org Cc: linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-api@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Keith Busch Subject: [PATCH v5 6/8] f2fs: simplify f2fs_force_buffered_io() Date: Fri, 26 Aug 2022 23:58:49 -0700 Message-Id: <20220827065851.135710-7-ebiggers@kernel.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220827065851.135710-1-ebiggers@kernel.org> References: <20220827065851.135710-1-ebiggers@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org From: Eric Biggers f2fs only allows direct I/O that is aligned to the filesystem block size. Given that fact, simplify f2fs_force_buffered_io() by removing the redundant call to block_unaligned_IO(). This makes it easier to reuse this code for STATX_DIOALIGN. Signed-off-by: Eric Biggers Acked-by: Jaegeuk Kim --- fs/f2fs/file.c | 27 +++++---------------------- 1 file changed, 5 insertions(+), 22 deletions(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 8a9455bf956f16..8e11311db21060 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -808,22 +808,9 @@ int f2fs_truncate(struct inode *inode) return 0; } -static int block_unaligned_IO(struct inode *inode, struct kiocb *iocb, - struct iov_iter *iter) -{ - unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); - unsigned int blocksize_mask = (1 << i_blkbits) - 1; - loff_t offset = iocb->ki_pos; - unsigned long align = offset | iov_iter_alignment(iter); - - return align & blocksize_mask; -} - -static bool f2fs_force_buffered_io(struct inode *inode, - struct kiocb *iocb, struct iov_iter *iter) +static bool f2fs_force_buffered_io(struct inode *inode, int rw) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); - int rw = iov_iter_rw(iter); if (!fscrypt_dio_supported(inode)) return true; @@ -836,13 +823,9 @@ static bool f2fs_force_buffered_io(struct inode *inode, if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize) return true; - if (f2fs_lfs_mode(sbi) && (rw == WRITE)) { - if (block_unaligned_IO(inode, iocb, iter)) - return true; - if (F2FS_IO_ALIGNED(sbi)) - return true; - } - if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) + if (f2fs_lfs_mode(sbi) && rw == WRITE && F2FS_IO_ALIGNED(sbi)) + return true; + if (is_sbi_flag_set(sbi, SBI_CP_DISABLED)) return true; return false; @@ -4222,7 +4205,7 @@ static bool f2fs_should_use_dio(struct inode *inode, struct kiocb *iocb, if (!(iocb->ki_flags & IOCB_DIRECT)) return false; - if (f2fs_force_buffered_io(inode, iocb, iter)) + if (f2fs_force_buffered_io(inode, iov_iter_rw(iter))) return false; /*