From patchwork Fri Oct 25 19:14:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 13851471 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 0E4BFD149E7 for ; Fri, 25 Oct 2024 19:34:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ikZY3g63aOxhGQPWyBngz2E2Mjdv6kWCgS7DFnYKMWI=; b=QlNu7sTSOsy9Kl eUq5+YixCTHBPeez6kGfmDwSNxQyWXQ83mDkavWQ563XcqbklH6Vl9oa1Ftvo5ehqhF+It7wqi9yE LNPSLWzEHCCLIfo5vahbDfrNNHCyQvJpCi63ML3UcAXixjDbDype3wdMbltZi5aeipd2KdyqutGmS P5HKJl+LvchBff1yAYy0cXhyX3l8ITsxpIK4CiS5xfI0w05nHLsKXyHrMWuDjM+NIlokae0CVhw8E HDIDasjhPDmSuGcYvz53qv4D2wvoY8ZLhLvggbnXXW9kNpsHRYnm4GaoYE2KxDqPodkCv9xcVSbQ3 u56/cX/yfD7X6YAZZuBQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t4Q4K-000000050I3-1qtk; Fri, 25 Oct 2024 19:33:56 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t4Pn2-00000004vS3-1BQX; Fri, 25 Oct 2024 19:16:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=rMnm9AwgmDXEuc2yh8LmdqCJvJnHE1qDq44Z13ehTrw=; b=KEYTed34x4FVPnan2xt3fzsaDy bcghCCx9CCXsZy2by7Feso3h/AllE5YWtWtILibsxQXh5Vk+2L5ZsGqgZy6Pp5bIvJqyxJDwO/PNl WFxhFa9lm9Cotd6RHk2QXHNUnlZZHBPm7aWooxCljxkpSPaX5njuE72qm2n/ftBqXgMYuns6p74lb 65fMGlpRqUlBNbu4stbBHOlzVlNt3YfKvaahN5F/5X5W06/lwC07BrIuT9WNfG02nzndmT3JSRDSA I6rTHzarJbx0L7NgEXfPdn0MHGRnzgWM23/ayFzjeEmcuW/fy9La/f+eBQlq9s+r2YC9TnFPWpV6b J1JxR6AA==; Received: from dfw.source.kernel.org ([139.178.84.217]) by desiato.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t4Pmv-000000092Fy-1f3x; Fri, 25 Oct 2024 19:16:02 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id CF5535C59B9; Fri, 25 Oct 2024 19:15:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47B18C4CEE5; Fri, 25 Oct 2024 19:15:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729883753; bh=WfN2SwQ1SfAPzqKDOcxOjX9pk3UC1SwykLtsIrx3B8I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uCCwJHNYYf343z6r1gEo9PunPQGR1ODph4209rcKOCpQYQ+Z9cKoDHqLtaqlEYjIN 2z+sKje/XEHhSVs1cW9BMdxxPDBwY/8FQEVauYvT4cXN2A4iOYNINsY5i0l8MCF3Ai 8q8X0FhxnigxeUIMEBJmTPwhzbSWVaA9MFxkKUhwN8wIFBFZxp4tuHQutYqCnUlmWV cqk5IIIqvbKBQzhnndsielpobBKgJOaBd54yeDLDV1uZhFlv57rqiHuzwNWxJcKnNA +UiwI5ZIfG85E83/zepiJUyaJTVqaFMCjzmt83JkiUljxXtaIcF4uNjlFC9cXsmWEg OwXqjgm4rW7jQ== From: Eric Biggers To: linux-kernel@vger.kernel.org Cc: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, sparclinux@vger.kernel.org, x86@kernel.org, Ard Biesheuvel Subject: [PATCH v2 17/18] f2fs: switch to using the crc32 library Date: Fri, 25 Oct 2024 12:14:53 -0700 Message-ID: <20241025191454.72616-18-ebiggers@kernel.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241025191454.72616-1-ebiggers@kernel.org> References: <20241025191454.72616-1-ebiggers@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241025_201558_003543_A7C01590 X-CRM114-Status: GOOD ( 15.59 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Eric Biggers Now that the crc32() library function takes advantage of architecture-specific optimizations, it is unnecessary to go through the crypto API. Just use crc32(). This is much simpler, and it improves performance due to eliminating the crypto API overhead. Reviewed-by: Ard Biesheuvel Signed-off-by: Eric Biggers --- fs/f2fs/Kconfig | 3 +-- fs/f2fs/f2fs.h | 19 +------------------ fs/f2fs/super.c | 15 --------------- 3 files changed, 2 insertions(+), 35 deletions(-) diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig index 68a1e23e1557..5916a02fb46d 100644 --- a/fs/f2fs/Kconfig +++ b/fs/f2fs/Kconfig @@ -2,12 +2,11 @@ config F2FS_FS tristate "F2FS filesystem support" depends on BLOCK select BUFFER_HEAD select NLS - select CRYPTO - select CRYPTO_CRC32 + select CRC32 select F2FS_FS_XATTR if FS_ENCRYPTION select FS_ENCRYPTION_ALGS if FS_ENCRYPTION select FS_IOMAP select LZ4_COMPRESS if F2FS_FS_LZ4 select LZ4_DECOMPRESS if F2FS_FS_LZ4 diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 33f5449dc22d..1fc5c2743c8d 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1761,13 +1761,10 @@ struct f2fs_sb_info { /* For write statistics */ u64 sectors_written_start; u64 kbytes_written; - /* Reference to checksum algorithm driver via cryptoapi */ - struct crypto_shash *s_chksum_driver; - /* Precomputed FS UUID checksum for seeding other checksums */ __u32 s_chksum_seed; struct workqueue_struct *post_read_wq; /* post read workqueue */ @@ -1941,25 +1938,11 @@ static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, * Inline functions */ static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, const void *address, unsigned int length) { - struct { - struct shash_desc shash; - char ctx[4]; - } desc; - int err; - - BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); - - desc.shash.tfm = sbi->s_chksum_driver; - *(u32 *)desc.ctx = crc; - - err = crypto_shash_update(&desc.shash, address, length); - BUG_ON(err); - - return *(u32 *)desc.ctx; + return crc32(crc, address, length); } static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, unsigned int length) { diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 87ab5696bd48..003d3bcb0caa 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1670,12 +1670,10 @@ static void f2fs_put_super(struct super_block *sb) f2fs_destroy_post_read_wq(sbi); kvfree(sbi->ckpt); - if (sbi->s_chksum_driver) - crypto_free_shash(sbi->s_chksum_driver); kfree(sbi->raw_super); f2fs_destroy_page_array_cache(sbi); f2fs_destroy_xattr_caches(sbi); #ifdef CONFIG_QUOTA @@ -4419,19 +4417,10 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) INIT_LIST_HEAD(&sbi->inode_list[i]); spin_lock_init(&sbi->inode_lock[i]); } mutex_init(&sbi->flush_lock); - /* Load the checksum driver */ - sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); - if (IS_ERR(sbi->s_chksum_driver)) { - f2fs_err(sbi, "Cannot load crc32 driver."); - err = PTR_ERR(sbi->s_chksum_driver); - sbi->s_chksum_driver = NULL; - goto free_sbi; - } - /* set a block size */ if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { f2fs_err(sbi, "unable to set blocksize"); goto free_sbi; } @@ -4872,12 +4861,10 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy); kvfree(options); free_sb_buf: kfree(raw_super); free_sbi: - if (sbi->s_chksum_driver) - crypto_free_shash(sbi->s_chksum_driver); kfree(sbi); sb->s_fs_info = NULL; /* give only one another chance */ if (retry_cnt > 0 && skip_recovery) { @@ -5080,7 +5067,5 @@ module_init(init_f2fs_fs) module_exit(exit_f2fs_fs) MODULE_AUTHOR("Samsung Electronics's Praesto Team"); MODULE_DESCRIPTION("Flash Friendly File System"); MODULE_LICENSE("GPL"); -MODULE_SOFTDEP("pre: crc32"); -