From mboxrd@z Thu Jan 1 00:00:00 1970 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 99094D149E8 for ; Fri, 25 Oct 2024 19:17:31 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4XZsvN1WDBz3bdK; Sat, 26 Oct 2024 06:16:00 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2604:1380:4641:c500::1" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1729883760; cv=none; b=fYNfjyA0hCb0SBCDMGzwF8z0lXMcK86CqZpCOkn7OeDa0WrJAYDY7wCW0+X4mYetf88ZD2sE02kzj76/CCelPlIzS5fc77FVBRsiXiddXfsHY8n01DgIwCbhFPMt/NTvudjaYtXB2oxZhS0mNYnvoHJSp4kP+eV6qXvlMHROuby8lHGAUW6bI/kkrPswytErb2rnjjQl2yZH9pCprt6HlhMHaaQP+VRVUHj9wTs7+nDtCtvPoLhxe/pzuhmaCBYNLnf+QKIINcgNY910B9U+U+sogvaj1y0o9PjvWt75Nw6Hc2HHnYbGaULDCQiss12FLrXutJCobRZ4eEwtDJgU4g== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1729883760; c=relaxed/relaxed; bh=rMnm9AwgmDXEuc2yh8LmdqCJvJnHE1qDq44Z13ehTrw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BwyfCK1OQwcuW85GW34wHaM94vBeFOv0/d06AEt1ExgN64hk4mD1Dje+3uU5xMBUnU6PyuntK7lRAAG/OH0QzVC2l9bHo5pcDkjuybJk2QLkr7NwFJ6Qywortizj9HCdRjtCVZ3B3N5VJ0gTDmsonC37iejeGcT3ocFXsyr9OnDpPIesRYtb46/LqbMJcPj//LK+TXiwPJigEOyZYPK0UIw3UffF6Zf1d1/wEKsgb9dEM5rwUHGcU/dAPYwbc6zvlcVvvWuyO9dH1ki4fTuBFpGNzo5Yudn7RCBA9jcDigExLiAvHIEoHMjSVEZ1yYHEa3dGow+PNLKrvchBrYEMWg== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=uCCwJHNY; dkim-atps=neutral; spf=pass (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=ebiggers@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=uCCwJHNY; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=ebiggers@kernel.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4XZsvK39dhz3bjg for ; Sat, 26 Oct 2024 06:15:56 +1100 (AEDT) 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> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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"); - -- 2.47.0