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.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (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 84407C3ABD8 for ; Wed, 14 May 2025 15:31:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.sourceforge.net; s=beta; h=Content-Transfer-Encoding:Content-Type:Cc: Reply-To:From:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Subject:In-Reply-To:MIME-Version:References: Message-ID:To:Date:Sender:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ye0alspG+uck2XJSp+VcDCg405bCItRbgtpbK66NASU=; b=df/sIK9/nCqT9JPzSUSt6N3Ag3 Nej4HgCyChAqqUuRAa/hF1i/5fkKmrTCDdru8HE2Mp1BV78te3jf2Ot42PJcROHN61aWyEUNZbnWG lWDVUP0xrnB3kQs2/N+W4Jcb5TKULI1tOGX5HCsTgXMWQis8xj3nWeec5imv9kIBybj4=; Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1uFE4W-0007ma-K5; Wed, 14 May 2025 15:31:04 +0000 Received: from [172.30.29.66] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1uFE4V-0007mP-8m for linux-f2fs-devel@lists.sourceforge.net; Wed, 14 May 2025 15:31:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=In-Reply-To:Content-Transfer-Encoding:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=T66WFeLDl5tANA3AV5JhSpccU4FSmss2ID4S79erExU=; b=Iv7XYDWnmy+wqdx+jf3c62obBc LxA4ns8lOQZrLletLR6l2reft7sW05OOuBBfxobn3qdeUSkMryKLxo4TKJ/80vA4q1pzobS5VLthN bvag7/g1tUXqdQkg/H42lFoszumH9t8zj1SvgeWgkN0GPl7jY+9hTBmAEg7bXUl44KKA=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=In-Reply-To:Content-Transfer-Encoding:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=T66WFeLDl5tANA3AV5JhSpccU4FSmss2ID4S79erExU=; b=myo+NK+bVRwzLAMlrnnvcC0SfX r5KJEwMSjTpshkQoA+5SKyS4t/qWY2pO93c3xIy/u2YQQHPFozIqTiQYhI0BZaX3edMECtONR2XYH ooI7UFKGpgTZcDs4EIm7iz3QpYTEZ5r0QHC6MGzGecviTMss56BOBNRRyaZmhP6kjcU0=; Received: from dfw.source.kernel.org ([139.178.84.217]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1uFE4T-0001PR-T4 for linux-f2fs-devel@lists.sourceforge.net; Wed, 14 May 2025 15:31:03 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 046085C2B46; Wed, 14 May 2025 15:28:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A95B1C4CEED; Wed, 14 May 2025 15:30:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747236655; bh=WMWbEExOSKwyXgOEjUWgGcplV+n4pAYX0mSi0pWsXcg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IM86HjWKd1c938NlxPyK6EINAQlOisPXhQdAX4Mc32QdZjznhvdV90iZBq/GhxdZM Vdp8jJPWD80R/GSxKKXhJRB//GSC5FTOdjiFrnNS7c+mq2vanrU3yPEbP8yM3O8Wm7 MKMDG3wrVMsxBFXIcRm16t9nzYN0vCzeLsaLa7Xl8gAKvihziU3wiD2CluqhnwOxHZ P+ZFfhJ+RsU8sZt+1jk8Edo6o5SzWuaGrh27cAWyAtmXZ7lPb8ToIyO3FJdX3xe40W Ey/EAIC8HVry1As0T6+NLwwsx4XPmbecUI44aX4huA5Q6Z3AJSiyKrVtUvMLfiQbfw X+joedDKMPMwQ== Date: Wed, 14 May 2025 15:30:53 +0000 To: Hongbo Li Message-ID: References: <20250423170926.76007-1-sandeen@redhat.com> <20250423170926.76007-8-sandeen@redhat.com> <63d1977d-2f0b-4c58-9867-0dc1285815a0@huawei.com> <979015aa-433d-4057-a454-afaea2c68131@kernel.org> <2ea178cb-1ed3-40ba-8dc6-8fa3bff06850@huawei.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <2ea178cb-1ed3-40ba-8dc6-8fa3bff06850@huawei.com> X-Headers-End: 1uFE4T-0001PR-T4 Subject: Re: [f2fs-dev] [PATCH V3 7/7] f2fs: switch to the new mount api X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Jaegeuk Kim via Linux-f2fs-devel Reply-To: Jaegeuk Kim Cc: linux-fsdevel@vger.kernel.org, Eric Sandeen , linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net Hi, Hongbo, It seems we're getting more issues in the patch set. May I ask for some help sending the new patch series having all the fixes that I made as well as addressing the concerns? You can get the patches from [1]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/log/?h= =3Ddev-test On 05/14, Hongbo Li wrote: > = > = > On 2025/5/14 12:03, Chao Yu wrote: > > On 5/14/25 10:33, Hongbo Li wrote: > > > = > > > = > > > On 2025/5/13 16:59, Chao Yu wrote: > > > > On 4/24/25 01:08, Eric Sandeen wrote: > > > > > From: Hongbo Li > > > > > = > > > > > The new mount api will execute .parse_param, .init_fs_context, .g= et_tree > > > > > and will call .remount if remount happened. So we add the necessa= ry > > > > > functions for the fs_context_operations. If .init_fs_context is a= dded, > > > > > the old .mount should remove. > > > > > = > > > > > See Documentation/filesystems/mount_api.rst for more information. > > > > = > > > > mkfs.f2fs -f -O extra_attr,flexible_inline_xattr /dev/vdb > > > > mount -o inline_xattr_size=3D512 /dev/vdb /mnt/f2fs > > > > mount: /mnt/f2fs: wrong fs type, bad option, bad superblock on /dev= /vdb, missing codepage or helper program, or other error. > > > > =A0=A0=A0=A0=A0=A0=A0 dmesg(1) may have more information after fai= led mount system call. > > > > dmesg > > > > [ 1758.202282] F2FS-fs (vdb): Image doesn't support compression > > > > [ 1758.202286] F2FS-fs (vdb): inline_xattr_size option should be se= t with inline_xattr option > > > > = > > > > Eric, Hongbo, can you please take a look at this issue? > > > > = > > > Sorry, we only check the option hold in ctx, we should do the double = check in sbi. Or other elegant approaches. > > > = > > > For the "support compression", is it also the error in this testcase? > > = > > I think so, I checked this w/ additional logs, and found this: > > = > > #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00080000 > > #define F2FS_SPEC_compress_chksum (1 << 19) /* equal to 0x00080000) > > = > > if (!f2fs_sb_has_compression(sbi)) { > > if (test_compression_spec(ctx->opt_mask) || > > ctx_test_opt(ctx, F2FS_MOUNT_COMPRESS_CACHE)) > > f2fs_info(sbi, "Image doesn't support compression"); > > clear_compression_spec(ctx); > > ctx->opt_mask &=3D ~F2FS_MOUNT_COMPRESS_CACHE; > > return 0; > > } > > = > > We should use test_compression_spec(ctx->spec_mask) instead of > > test_compression_spec(ctx->opt_mask) to check special mask of compressi= on > > option? > > = > = > Yeah, you're right. test_compression_spec is used to check spec_mask, and= we > got it wrong. > = > Thanks, > Hongbo > = > > Thanks, > > = > > > = > > > Thanks, > > > Hongbo > > > = > > > > Thanks, > > > > = > > > > > = > > > > > Signed-off-by: Hongbo Li > > > > > [sandeen: forward port] > > > > > Signed-off-by: Eric Sandeen > > > > > --- > > > > > =A0 fs/f2fs/super.c | 156 +++++++++++++++++++-------------------= ---------- > > > > > =A0 1 file changed, 62 insertions(+), 94 deletions(-) > > > > > = > > > > > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c > > > > > index 37497fd80bb9..041bd6c482a0 100644 > > > > > --- a/fs/f2fs/super.c > > > > > +++ b/fs/f2fs/super.c > > > > > @@ -1141,47 +1141,6 @@ static int f2fs_parse_param(struct fs_cont= ext *fc, struct fs_parameter *param) > > > > > =A0=A0=A0=A0=A0 return 0; > > > > > =A0 } > > > > > =A0 -static int parse_options(struct fs_context *fc, char *optio= ns) > > > > > -{ > > > > > -=A0=A0=A0 struct fs_parameter param; > > > > > -=A0=A0=A0 char *key; > > > > > -=A0=A0=A0 int ret; > > > > > - > > > > > -=A0=A0=A0 if (!options) > > > > > -=A0=A0=A0=A0=A0=A0=A0 return 0; > > > > > - > > > > > -=A0=A0=A0 while ((key =3D strsep(&options, ",")) !=3D NULL) { > > > > > -=A0=A0=A0=A0=A0=A0=A0 if (*key) { > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 size_t v_len =3D 0; > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 char *value =3D strchr(key, '= =3D'); > > > > > - > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 param.type =3D fs_value_is_fla= g; > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 param.string =3D NULL; > > > > > - > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if (value) { > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if (value =3D=3D k= ey) > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 contin= ue; > > > > > - > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 *value++ =3D 0; > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 v_len =3D strlen(v= alue); > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 param.string =3D k= memdup_nul(value, v_len, GFP_KERNEL); > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if (!param.string) > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 return= -ENOMEM; > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 param.type =3D fs_= value_is_string; > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 } > > > > > - > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 param.key =3D key; > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 param.size =3D v_len; > > > > > - > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ret =3D f2fs_parse_param(fc, &= param); > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 kfree(param.string); > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if (ret < 0) > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 return ret; > > > > > -=A0=A0=A0=A0=A0=A0=A0 } > > > > > -=A0=A0=A0 } > > > > > -=A0=A0=A0 return 0; > > > > > -} > > > > > - > > > > > =A0 /* > > > > > =A0=A0 * Check quota settings consistency. > > > > > =A0=A0 */ > > > > > @@ -2583,13 +2542,12 @@ static void f2fs_enable_checkpoint(struct= f2fs_sb_info *sbi) > > > > > =A0=A0=A0=A0=A0 f2fs_flush_ckpt_thread(sbi); > > > > > =A0 } > > > > > =A0 -static int f2fs_remount(struct super_block *sb, int *flags,= char *data) > > > > > +static int __f2fs_remount(struct fs_context *fc, struct super_bl= ock *sb) > > > > > =A0 { > > > > > =A0=A0=A0=A0=A0 struct f2fs_sb_info *sbi =3D F2FS_SB(sb); > > > > > =A0=A0=A0=A0=A0 struct f2fs_mount_info org_mount_opt; > > > > > -=A0=A0=A0 struct f2fs_fs_context ctx; > > > > > -=A0=A0=A0 struct fs_context fc; > > > > > =A0=A0=A0=A0=A0 unsigned long old_sb_flags; > > > > > +=A0=A0=A0 unsigned int flags =3D fc->sb_flags; > > > > > =A0=A0=A0=A0=A0 int err; > > > > > =A0=A0=A0=A0=A0 bool need_restart_gc =3D false, need_stop_gc =3D= false; > > > > > =A0=A0=A0=A0=A0 bool need_restart_flush =3D false, need_stop_flu= sh =3D false; > > > > > @@ -2635,7 +2593,7 @@ static int f2fs_remount(struct super_block = *sb, int *flags, char *data) > > > > > =A0 #endif > > > > > =A0 =A0=A0=A0=A0=A0 /* recover superblocks we couldn't write due= to previous RO mount */ > > > > > -=A0=A0=A0 if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_= NEED_SB_WRITE)) { > > > > > +=A0=A0=A0 if (!(flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_N= EED_SB_WRITE)) { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 err =3D f2fs_commit_super(sbi, false= ); > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 f2fs_info(sbi, "Try to recover all t= he superblocks, ret: %d", > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 err); > > > > > @@ -2645,21 +2603,11 @@ static int f2fs_remount(struct super_bloc= k *sb, int *flags, char *data) > > > > > =A0 =A0=A0=A0=A0=A0 default_options(sbi, true); > > > > > =A0 -=A0=A0=A0 memset(&fc, 0, sizeof(fc)); > > > > > -=A0=A0=A0 memset(&ctx, 0, sizeof(ctx)); > > > > > -=A0=A0=A0 fc.fs_private =3D &ctx; > > > > > -=A0=A0=A0 fc.purpose =3D FS_CONTEXT_FOR_RECONFIGURE; > > > > > - > > > > > -=A0=A0=A0 /* parse mount options */ > > > > > -=A0=A0=A0 err =3D parse_options(&fc, data); > > > > > -=A0=A0=A0 if (err) > > > > > -=A0=A0=A0=A0=A0=A0=A0 goto restore_opts; > > > > > - > > > > > -=A0=A0=A0 err =3D f2fs_check_opt_consistency(&fc, sb); > > > > > +=A0=A0=A0 err =3D f2fs_check_opt_consistency(fc, sb); > > > > > =A0=A0=A0=A0=A0 if (err < 0) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 goto restore_opts; > > > > > =A0 -=A0=A0=A0 f2fs_apply_options(&fc, sb); > > > > > +=A0=A0=A0 f2fs_apply_options(fc, sb); > > > > > =A0 =A0 #ifdef CONFIG_BLK_DEV_ZONED > > > > > =A0=A0=A0=A0=A0 if (f2fs_sb_has_blkzoned(sbi) && > > > > > @@ -2678,20 +2626,20 @@ static int f2fs_remount(struct super_bloc= k *sb, int *flags, char *data) > > > > > =A0=A0=A0=A0=A0=A0 * Previous and new state of filesystem is RO, > > > > > =A0=A0=A0=A0=A0=A0 * so skip checking GC and FLUSH_MERGE conditi= ons. > > > > > =A0=A0=A0=A0=A0=A0 */ > > > > > -=A0=A0=A0 if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) > > > > > +=A0=A0=A0 if (f2fs_readonly(sb) && (flags & SB_RDONLY)) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 goto skip; > > > > > =A0 -=A0=A0=A0 if (f2fs_dev_is_readonly(sbi) && !(*flags & SB_RD= ONLY)) { > > > > > +=A0=A0=A0 if (f2fs_dev_is_readonly(sbi) && !(flags & SB_RDONLY))= { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 err =3D -EROFS; > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 goto restore_opts; > > > > > =A0=A0=A0=A0=A0 } > > > > > =A0 =A0 #ifdef CONFIG_QUOTA > > > > > -=A0=A0=A0 if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { > > > > > +=A0=A0=A0 if (!f2fs_readonly(sb) && (flags & SB_RDONLY)) { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 err =3D dquot_suspend(sb, -1); > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 if (err < 0) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 goto restore_opts; > > > > > -=A0=A0=A0 } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY))= { > > > > > +=A0=A0=A0 } else if (f2fs_readonly(sb) && !(flags & SB_RDONLY)) { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 /* dquot_resume needs RW */ > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 sb->s_flags &=3D ~SB_RDONLY; > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 if (sb_any_quota_suspended(sb)) { > > > > > @@ -2747,7 +2695,7 @@ static int f2fs_remount(struct super_block = *sb, int *flags, char *data) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 goto restore_opts; > > > > > =A0=A0=A0=A0=A0 } > > > > > =A0 -=A0=A0=A0 if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE= _CHECKPOINT)) { > > > > > +=A0=A0=A0 if ((flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECK= POINT)) { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 err =3D -EINVAL; > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 f2fs_warn(sbi, "disabling checkpoint= not compatible with read-only"); > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 goto restore_opts; > > > > > @@ -2758,7 +2706,7 @@ static int f2fs_remount(struct super_block = *sb, int *flags, char *data) > > > > > =A0=A0=A0=A0=A0=A0 * or if background_gc =3D off is passed in mo= unt > > > > > =A0=A0=A0=A0=A0=A0 * option. Also sync the filesystem. > > > > > =A0=A0=A0=A0=A0=A0 */ > > > > > -=A0=A0=A0 if ((*flags & SB_RDONLY) || > > > > > +=A0=A0=A0 if ((flags & SB_RDONLY) || > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 (F2FS_OPTION(sbi).bggc_m= ode =3D=3D BGGC_MODE_OFF && > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 !test_opt(sbi, GC_MERGE)= )) { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 if (sbi->gc_thread) { > > > > > @@ -2772,7 +2720,7 @@ static int f2fs_remount(struct super_block = *sb, int *flags, char *data) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 need_stop_gc =3D true; > > > > > =A0=A0=A0=A0=A0 } > > > > > =A0 -=A0=A0=A0 if (*flags & SB_RDONLY) { > > > > > +=A0=A0=A0 if (flags & SB_RDONLY) { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 sync_inodes_sb(sb); > > > > > =A0 =A0=A0=A0=A0=A0=A0=A0=A0=A0 set_sbi_flag(sbi, SBI_IS_DIRTY); > > > > > @@ -2785,7 +2733,7 @@ static int f2fs_remount(struct super_block = *sb, int *flags, char *data) > > > > > =A0=A0=A0=A0=A0=A0 * We stop issue flush thread if FS is mounted= as RO > > > > > =A0=A0=A0=A0=A0=A0 * or if flush_merge is not passed in mount op= tion. > > > > > =A0=A0=A0=A0=A0=A0 */ > > > > > -=A0=A0=A0 if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE= )) { > > > > > +=A0=A0=A0 if ((flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)= ) { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 clear_opt(sbi, FLUSH_MERGE); > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 f2fs_destroy_flush_cmd_control(sbi, = false); > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 need_restart_flush =3D true; > > > > > @@ -2827,7 +2775,7 @@ static int f2fs_remount(struct super_block = *sb, int *flags, char *data) > > > > > =A0=A0=A0=A0=A0=A0 * triggered while remount and we need to take= care of it before > > > > > =A0=A0=A0=A0=A0=A0 * returning from remount. > > > > > =A0=A0=A0=A0=A0=A0 */ > > > > > -=A0=A0=A0 if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHEC= KPOINT) || > > > > > +=A0=A0=A0 if ((flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECK= POINT) || > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 !test_opt(sbi, MERGE_CHE= CKPOINT)) { > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 f2fs_stop_ckpt_thread(sbi); > > > > > =A0=A0=A0=A0=A0 } else { > > > > > @@ -2854,7 +2802,7 @@ static int f2fs_remount(struct super_block = *sb, int *flags, char *data) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 (test_opt(sbi, POSIX_ACL) ? SB_POSIX= ACL : 0); > > > > > =A0 =A0=A0=A0=A0=A0 limit_reserve_root(sbi); > > > > > -=A0=A0=A0 *flags =3D (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB= _LAZYTIME); > > > > > +=A0=A0=A0 fc->sb_flags =3D (flags & ~SB_LAZYTIME) | (sb->s_flags= & SB_LAZYTIME); > > > > > =A0 =A0=A0=A0=A0=A0 sbi->umount_lock_holder =3D NULL; > > > > > =A0=A0=A0=A0=A0 return 0; > > > > > @@ -3523,7 +3471,6 @@ static const struct super_operations f2fs_s= ops =3D { > > > > > =A0=A0=A0=A0=A0 .freeze_fs=A0=A0=A0 =3D f2fs_freeze, > > > > > =A0=A0=A0=A0=A0 .unfreeze_fs=A0=A0=A0 =3D f2fs_unfreeze, > > > > > =A0=A0=A0=A0=A0 .statfs=A0=A0=A0=A0=A0=A0=A0 =3D f2fs_statfs, > > > > > -=A0=A0=A0 .remount_fs=A0=A0=A0 =3D f2fs_remount, > > > > > =A0=A0=A0=A0=A0 .shutdown=A0=A0=A0 =3D f2fs_shutdown, > > > > > =A0 }; > > > > > =A0 @@ -4745,16 +4692,13 @@ static void f2fs_tuning_parameters(s= truct f2fs_sb_info *sbi) > > > > > =A0=A0=A0=A0=A0 sbi->readdir_ra =3D true; > > > > > =A0 } > > > > > =A0 -static int f2fs_fill_super(struct super_block *sb, void *da= ta, int silent) > > > > > +static int f2fs_fill_super(struct super_block *sb, struct fs_con= text *fc) > > > > > =A0 { > > > > > =A0=A0=A0=A0=A0 struct f2fs_sb_info *sbi; > > > > > =A0=A0=A0=A0=A0 struct f2fs_super_block *raw_super; > > > > > -=A0=A0=A0 struct f2fs_fs_context ctx; > > > > > -=A0=A0=A0 struct fs_context fc; > > > > > =A0=A0=A0=A0=A0 struct inode *root; > > > > > =A0=A0=A0=A0=A0 int err; > > > > > =A0=A0=A0=A0=A0 bool skip_recovery =3D false, need_fsck =3D fals= e; > > > > > -=A0=A0=A0 char *options =3D NULL; > > > > > =A0=A0=A0=A0=A0 int recovery, i, valid_super_block; > > > > > =A0=A0=A0=A0=A0 struct curseg_info *seg_i; > > > > > =A0=A0=A0=A0=A0 int retry_cnt =3D 1; > > > > > @@ -4767,9 +4711,6 @@ static int f2fs_fill_super(struct super_blo= ck *sb, void *data, int silent) > > > > > =A0=A0=A0=A0=A0 raw_super =3D NULL; > > > > > =A0=A0=A0=A0=A0 valid_super_block =3D -1; > > > > > =A0=A0=A0=A0=A0 recovery =3D 0; > > > > > -=A0=A0=A0 memset(&fc, 0, sizeof(fc)); > > > > > -=A0=A0=A0 memset(&ctx, 0, sizeof(ctx)); > > > > > -=A0=A0=A0 fc.fs_private =3D &ctx; > > > > > =A0 =A0=A0=A0=A0=A0 /* allocate memory for f2fs-specific super b= lock info */ > > > > > =A0=A0=A0=A0=A0 sbi =3D kzalloc(sizeof(struct f2fs_sb_info), GFP= _KERNEL); > > > > > @@ -4820,22 +4761,12 @@ static int f2fs_fill_super(struct super_b= lock *sb, void *data, int silent) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0 sizeof(raw_super->uuid)); > > > > > =A0 =A0=A0=A0=A0=A0 default_options(sbi, false); > > > > > -=A0=A0=A0 /* parse mount options */ > > > > > -=A0=A0=A0 options =3D kstrdup((const char *)data, GFP_KERNEL); > > > > > -=A0=A0=A0 if (data && !options) { > > > > > -=A0=A0=A0=A0=A0=A0=A0 err =3D -ENOMEM; > > > > > -=A0=A0=A0=A0=A0=A0=A0 goto free_sb_buf; > > > > > -=A0=A0=A0 } > > > > > - > > > > > -=A0=A0=A0 err =3D parse_options(&fc, options); > > > > > -=A0=A0=A0 if (err) > > > > > -=A0=A0=A0=A0=A0=A0=A0 goto free_options; > > > > > =A0 -=A0=A0=A0 err =3D f2fs_check_opt_consistency(&fc, sb); > > > > > +=A0=A0=A0 err =3D f2fs_check_opt_consistency(fc, sb); > > > > > =A0=A0=A0=A0=A0 if (err < 0) > > > > > -=A0=A0=A0=A0=A0=A0=A0 goto free_options; > > > > > +=A0=A0=A0=A0=A0=A0=A0 goto free_sb_buf; > > > > > =A0 -=A0=A0=A0 f2fs_apply_options(&fc, sb); > > > > > +=A0=A0=A0 f2fs_apply_options(fc, sb); > > > > > =A0 =A0=A0=A0=A0=A0 sb->s_maxbytes =3D max_file_blocks(NULL) << > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 le32_to_cpu(= raw_super->log_blocksize); > > > > > @@ -5160,7 +5091,6 @@ static int f2fs_fill_super(struct super_blo= ck *sb, void *data, int silent) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 if (err) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 goto sync_free_meta; > > > > > =A0=A0=A0=A0=A0 } > > > > > -=A0=A0=A0 kvfree(options); > > > > > =A0 =A0=A0=A0=A0=A0 /* recover broken superblock */ > > > > > =A0=A0=A0=A0=A0 if (recovery) { > > > > > @@ -5255,7 +5185,6 @@ static int f2fs_fill_super(struct super_blo= ck *sb, void *data, int silent) > > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0 kfree(F2FS_OPTION(sbi).s_qf_names[i]= ); > > > > > =A0 #endif > > > > > =A0=A0=A0=A0=A0 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dumm= y_enc_policy); > > > > > -=A0=A0=A0 kvfree(options); > > > > > =A0 free_sb_buf: > > > > > =A0=A0=A0=A0=A0 kfree(raw_super); > > > > > =A0 free_sbi: > > > > > @@ -5271,14 +5200,39 @@ static int f2fs_fill_super(struct super_b= lock *sb, void *data, int silent) > > > > > =A0=A0=A0=A0=A0 return err; > > > > > =A0 } > > > > > =A0 -static struct dentry *f2fs_mount(struct file_system_type *f= s_type, int flags, > > > > > -=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 const char *dev_name, void *da= ta) > > > > > +static int f2fs_get_tree(struct fs_context *fc) > > > > > =A0 { > > > > > -=A0=A0=A0 return mount_bdev(fs_type, flags, dev_name, data, f2fs= _fill_super); > > > > > +=A0=A0=A0 return get_tree_bdev(fc, f2fs_fill_super); > > > > > +} > > > > > + > > > > > +static int f2fs_reconfigure(struct fs_context *fc) > > > > > +{ > > > > > +=A0=A0=A0 struct super_block *sb =3D fc->root->d_sb; > > > > > + > > > > > +=A0=A0=A0 return __f2fs_remount(fc, sb); > > > > > +} > > > > > + > > > > > +static void f2fs_fc_free(struct fs_context *fc) > > > > > +{ > > > > > +=A0=A0=A0 struct f2fs_fs_context *ctx =3D fc->fs_private; > > > > > +=A0=A0=A0 int i; > > > > > + > > > > > +=A0=A0=A0 if (!ctx) > > > > > +=A0=A0=A0=A0=A0=A0=A0 return; > > > > > + > > > > > +#ifdef CONFIG_QUOTA > > > > > +=A0=A0=A0 for (i =3D 0; i < MAXQUOTAS; i++) > > > > > +=A0=A0=A0=A0=A0=A0=A0 kfree(F2FS_CTX_INFO(ctx).s_qf_names[i]); > > > > > +#endif > > > > > +=A0=A0=A0 fscrypt_free_dummy_policy(&F2FS_CTX_INFO(ctx).dummy_en= c_policy); > > > > > +=A0=A0=A0 kfree(ctx); > > > > > =A0 } > > > > > =A0 =A0 static const struct fs_context_operations f2fs_context_o= ps =3D { > > > > > =A0=A0=A0=A0=A0 .parse_param=A0=A0=A0 =3D f2fs_parse_param, > > > > > +=A0=A0=A0 .get_tree=A0=A0=A0 =3D f2fs_get_tree, > > > > > +=A0=A0=A0 .reconfigure =3D f2fs_reconfigure, > > > > > +=A0=A0=A0 .free=A0=A0=A0 =3D f2fs_fc_free, > > > > > =A0 }; > > > > > =A0 =A0 static void kill_f2fs_super(struct super_block *sb) > > > > > @@ -5322,10 +5276,24 @@ static void kill_f2fs_super(struct super_= block *sb) > > > > > =A0=A0=A0=A0=A0 } > > > > > =A0 } > > > > > =A0 +static int f2fs_init_fs_context(struct fs_context *fc) > > > > > +{ > > > > > +=A0=A0=A0 struct f2fs_fs_context *ctx; > > > > > + > > > > > +=A0=A0=A0 ctx =3D kzalloc(sizeof(struct f2fs_fs_context), GFP_KE= RNEL); > > > > > +=A0=A0=A0 if (!ctx) > > > > > +=A0=A0=A0=A0=A0=A0=A0 return -ENOMEM; > > > > > + > > > > > +=A0=A0=A0 fc->fs_private =3D ctx; > > > > > +=A0=A0=A0 fc->ops =3D &f2fs_context_ops; > > > > > + > > > > > +=A0=A0=A0 return 0; > > > > > +} > > > > > + > > > > > =A0 static struct file_system_type f2fs_fs_type =3D { > > > > > =A0=A0=A0=A0=A0 .owner=A0=A0=A0=A0=A0=A0=A0 =3D THIS_MODULE, > > > > > =A0=A0=A0=A0=A0 .name=A0=A0=A0=A0=A0=A0=A0 =3D "f2fs", > > > > > -=A0=A0=A0 .mount=A0=A0=A0=A0=A0=A0=A0 =3D f2fs_mount, > > > > > +=A0=A0=A0 .init_fs_context =3D f2fs_init_fs_context, > > > > > =A0=A0=A0=A0=A0 .kill_sb=A0=A0=A0 =3D kill_f2fs_super, > > > > > =A0=A0=A0=A0=A0 .fs_flags=A0=A0=A0 =3D FS_REQUIRES_DEV | FS_ALLO= W_IDMAP, > > > > > =A0 }; > > > > = > > = > > = _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 74E751E5B79 for ; 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dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IM86HjWK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A95B1C4CEED; Wed, 14 May 2025 15:30:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747236655; bh=WMWbEExOSKwyXgOEjUWgGcplV+n4pAYX0mSi0pWsXcg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IM86HjWKd1c938NlxPyK6EINAQlOisPXhQdAX4Mc32QdZjznhvdV90iZBq/GhxdZM Vdp8jJPWD80R/GSxKKXhJRB//GSC5FTOdjiFrnNS7c+mq2vanrU3yPEbP8yM3O8Wm7 MKMDG3wrVMsxBFXIcRm16t9nzYN0vCzeLsaLa7Xl8gAKvihziU3wiD2CluqhnwOxHZ P+ZFfhJ+RsU8sZt+1jk8Edo6o5SzWuaGrh27cAWyAtmXZ7lPb8ToIyO3FJdX3xe40W Ey/EAIC8HVry1As0T6+NLwwsx4XPmbecUI44aX4huA5Q6Z3AJSiyKrVtUvMLfiQbfw X+joedDKMPMwQ== Date: Wed, 14 May 2025 15:30:53 +0000 From: Jaegeuk Kim To: Hongbo Li Cc: Chao Yu , Eric Sandeen , linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Subject: Re: [PATCH V3 7/7] f2fs: switch to the new mount api Message-ID: References: <20250423170926.76007-1-sandeen@redhat.com> <20250423170926.76007-8-sandeen@redhat.com> <63d1977d-2f0b-4c58-9867-0dc1285815a0@huawei.com> <979015aa-433d-4057-a454-afaea2c68131@kernel.org> <2ea178cb-1ed3-40ba-8dc6-8fa3bff06850@huawei.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <2ea178cb-1ed3-40ba-8dc6-8fa3bff06850@huawei.com> Hi, Hongbo, It seems we're getting more issues in the patch set. May I ask for some help sending the new patch series having all the fixes that I made as well as addressing the concerns? You can get the patches from [1]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/log/?h=dev-test On 05/14, Hongbo Li wrote: > > > On 2025/5/14 12:03, Chao Yu wrote: > > On 5/14/25 10:33, Hongbo Li wrote: > > > > > > > > > On 2025/5/13 16:59, Chao Yu wrote: > > > > On 4/24/25 01:08, Eric Sandeen wrote: > > > > > From: Hongbo Li > > > > > > > > > > The new mount api will execute .parse_param, .init_fs_context, .get_tree > > > > > and will call .remount if remount happened. So we add the necessary > > > > > functions for the fs_context_operations. If .init_fs_context is added, > > > > > the old .mount should remove. > > > > > > > > > > See Documentation/filesystems/mount_api.rst for more information. > > > > > > > > mkfs.f2fs -f -O extra_attr,flexible_inline_xattr /dev/vdb > > > > mount -o inline_xattr_size=512 /dev/vdb /mnt/f2fs > > > > mount: /mnt/f2fs: wrong fs type, bad option, bad superblock on /dev/vdb, missing codepage or helper program, or other error. > > > >         dmesg(1) may have more information after failed mount system call. > > > > dmesg > > > > [ 1758.202282] F2FS-fs (vdb): Image doesn't support compression > > > > [ 1758.202286] F2FS-fs (vdb): inline_xattr_size option should be set with inline_xattr option > > > > > > > > Eric, Hongbo, can you please take a look at this issue? > > > > > > > Sorry, we only check the option hold in ctx, we should do the double check in sbi. Or other elegant approaches. > > > > > > For the "support compression", is it also the error in this testcase? > > > > I think so, I checked this w/ additional logs, and found this: > > > > #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00080000 > > #define F2FS_SPEC_compress_chksum (1 << 19) /* equal to 0x00080000) > > > > if (!f2fs_sb_has_compression(sbi)) { > > if (test_compression_spec(ctx->opt_mask) || > > ctx_test_opt(ctx, F2FS_MOUNT_COMPRESS_CACHE)) > > f2fs_info(sbi, "Image doesn't support compression"); > > clear_compression_spec(ctx); > > ctx->opt_mask &= ~F2FS_MOUNT_COMPRESS_CACHE; > > return 0; > > } > > > > We should use test_compression_spec(ctx->spec_mask) instead of > > test_compression_spec(ctx->opt_mask) to check special mask of compression > > option? > > > > Yeah, you're right. test_compression_spec is used to check spec_mask, and we > got it wrong. > > Thanks, > Hongbo > > > Thanks, > > > > > > > > Thanks, > > > Hongbo > > > > > > > Thanks, > > > > > > > > > > > > > > Signed-off-by: Hongbo Li > > > > > [sandeen: forward port] > > > > > Signed-off-by: Eric Sandeen > > > > > --- > > > > >   fs/f2fs/super.c | 156 +++++++++++++++++++----------------------------- > > > > >   1 file changed, 62 insertions(+), 94 deletions(-) > > > > > > > > > > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c > > > > > index 37497fd80bb9..041bd6c482a0 100644 > > > > > --- a/fs/f2fs/super.c > > > > > +++ b/fs/f2fs/super.c > > > > > @@ -1141,47 +1141,6 @@ static int f2fs_parse_param(struct fs_context *fc, struct fs_parameter *param) > > > > >       return 0; > > > > >   } > > > > >   -static int parse_options(struct fs_context *fc, char *options) > > > > > -{ > > > > > -    struct fs_parameter param; > > > > > -    char *key; > > > > > -    int ret; > > > > > - > > > > > -    if (!options) > > > > > -        return 0; > > > > > - > > > > > -    while ((key = strsep(&options, ",")) != NULL) { > > > > > -        if (*key) { > > > > > -            size_t v_len = 0; > > > > > -            char *value = strchr(key, '='); > > > > > - > > > > > -            param.type = fs_value_is_flag; > > > > > -            param.string = NULL; > > > > > - > > > > > -            if (value) { > > > > > -                if (value == key) > > > > > -                    continue; > > > > > - > > > > > -                *value++ = 0; > > > > > -                v_len = strlen(value); > > > > > -                param.string = kmemdup_nul(value, v_len, GFP_KERNEL); > > > > > -                if (!param.string) > > > > > -                    return -ENOMEM; > > > > > -                param.type = fs_value_is_string; > > > > > -            } > > > > > - > > > > > -            param.key = key; > > > > > -            param.size = v_len; > > > > > - > > > > > -            ret = f2fs_parse_param(fc, ¶m); > > > > > -            kfree(param.string); > > > > > -            if (ret < 0) > > > > > -                return ret; > > > > > -        } > > > > > -    } > > > > > -    return 0; > > > > > -} > > > > > - > > > > >   /* > > > > >    * Check quota settings consistency. > > > > >    */ > > > > > @@ -2583,13 +2542,12 @@ static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi) > > > > >       f2fs_flush_ckpt_thread(sbi); > > > > >   } > > > > >   -static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > > +static int __f2fs_remount(struct fs_context *fc, struct super_block *sb) > > > > >   { > > > > >       struct f2fs_sb_info *sbi = F2FS_SB(sb); > > > > >       struct f2fs_mount_info org_mount_opt; > > > > > -    struct f2fs_fs_context ctx; > > > > > -    struct fs_context fc; > > > > >       unsigned long old_sb_flags; > > > > > +    unsigned int flags = fc->sb_flags; > > > > >       int err; > > > > >       bool need_restart_gc = false, need_stop_gc = false; > > > > >       bool need_restart_flush = false, need_stop_flush = false; > > > > > @@ -2635,7 +2593,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >   #endif > > > > >         /* recover superblocks we couldn't write due to previous RO mount */ > > > > > -    if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { > > > > > +    if (!(flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { > > > > >           err = f2fs_commit_super(sbi, false); > > > > >           f2fs_info(sbi, "Try to recover all the superblocks, ret: %d", > > > > >                 err); > > > > > @@ -2645,21 +2603,11 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >         default_options(sbi, true); > > > > >   -    memset(&fc, 0, sizeof(fc)); > > > > > -    memset(&ctx, 0, sizeof(ctx)); > > > > > -    fc.fs_private = &ctx; > > > > > -    fc.purpose = FS_CONTEXT_FOR_RECONFIGURE; > > > > > - > > > > > -    /* parse mount options */ > > > > > -    err = parse_options(&fc, data); > > > > > -    if (err) > > > > > -        goto restore_opts; > > > > > - > > > > > -    err = f2fs_check_opt_consistency(&fc, sb); > > > > > +    err = f2fs_check_opt_consistency(fc, sb); > > > > >       if (err < 0) > > > > >           goto restore_opts; > > > > >   -    f2fs_apply_options(&fc, sb); > > > > > +    f2fs_apply_options(fc, sb); > > > > >     #ifdef CONFIG_BLK_DEV_ZONED > > > > >       if (f2fs_sb_has_blkzoned(sbi) && > > > > > @@ -2678,20 +2626,20 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >        * Previous and new state of filesystem is RO, > > > > >        * so skip checking GC and FLUSH_MERGE conditions. > > > > >        */ > > > > > -    if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) > > > > > +    if (f2fs_readonly(sb) && (flags & SB_RDONLY)) > > > > >           goto skip; > > > > >   -    if (f2fs_dev_is_readonly(sbi) && !(*flags & SB_RDONLY)) { > > > > > +    if (f2fs_dev_is_readonly(sbi) && !(flags & SB_RDONLY)) { > > > > >           err = -EROFS; > > > > >           goto restore_opts; > > > > >       } > > > > >     #ifdef CONFIG_QUOTA > > > > > -    if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { > > > > > +    if (!f2fs_readonly(sb) && (flags & SB_RDONLY)) { > > > > >           err = dquot_suspend(sb, -1); > > > > >           if (err < 0) > > > > >               goto restore_opts; > > > > > -    } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) { > > > > > +    } else if (f2fs_readonly(sb) && !(flags & SB_RDONLY)) { > > > > >           /* dquot_resume needs RW */ > > > > >           sb->s_flags &= ~SB_RDONLY; > > > > >           if (sb_any_quota_suspended(sb)) { > > > > > @@ -2747,7 +2695,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >           goto restore_opts; > > > > >       } > > > > >   -    if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) { > > > > > +    if ((flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) { > > > > >           err = -EINVAL; > > > > >           f2fs_warn(sbi, "disabling checkpoint not compatible with read-only"); > > > > >           goto restore_opts; > > > > > @@ -2758,7 +2706,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >        * or if background_gc = off is passed in mount > > > > >        * option. Also sync the filesystem. > > > > >        */ > > > > > -    if ((*flags & SB_RDONLY) || > > > > > +    if ((flags & SB_RDONLY) || > > > > >               (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF && > > > > >               !test_opt(sbi, GC_MERGE))) { > > > > >           if (sbi->gc_thread) { > > > > > @@ -2772,7 +2720,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >           need_stop_gc = true; > > > > >       } > > > > >   -    if (*flags & SB_RDONLY) { > > > > > +    if (flags & SB_RDONLY) { > > > > >           sync_inodes_sb(sb); > > > > >             set_sbi_flag(sbi, SBI_IS_DIRTY); > > > > > @@ -2785,7 +2733,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >        * We stop issue flush thread if FS is mounted as RO > > > > >        * or if flush_merge is not passed in mount option. > > > > >        */ > > > > > -    if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { > > > > > +    if ((flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { > > > > >           clear_opt(sbi, FLUSH_MERGE); > > > > >           f2fs_destroy_flush_cmd_control(sbi, false); > > > > >           need_restart_flush = true; > > > > > @@ -2827,7 +2775,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >        * triggered while remount and we need to take care of it before > > > > >        * returning from remount. > > > > >        */ > > > > > -    if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) || > > > > > +    if ((flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) || > > > > >               !test_opt(sbi, MERGE_CHECKPOINT)) { > > > > >           f2fs_stop_ckpt_thread(sbi); > > > > >       } else { > > > > > @@ -2854,7 +2802,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) > > > > >           (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); > > > > >         limit_reserve_root(sbi); > > > > > -    *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME); > > > > > +    fc->sb_flags = (flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME); > > > > >         sbi->umount_lock_holder = NULL; > > > > >       return 0; > > > > > @@ -3523,7 +3471,6 @@ static const struct super_operations f2fs_sops = { > > > > >       .freeze_fs    = f2fs_freeze, > > > > >       .unfreeze_fs    = f2fs_unfreeze, > > > > >       .statfs        = f2fs_statfs, > > > > > -    .remount_fs    = f2fs_remount, > > > > >       .shutdown    = f2fs_shutdown, > > > > >   }; > > > > >   @@ -4745,16 +4692,13 @@ static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi) > > > > >       sbi->readdir_ra = true; > > > > >   } > > > > >   -static int f2fs_fill_super(struct super_block *sb, void *data, int silent) > > > > > +static int f2fs_fill_super(struct super_block *sb, struct fs_context *fc) > > > > >   { > > > > >       struct f2fs_sb_info *sbi; > > > > >       struct f2fs_super_block *raw_super; > > > > > -    struct f2fs_fs_context ctx; > > > > > -    struct fs_context fc; > > > > >       struct inode *root; > > > > >       int err; > > > > >       bool skip_recovery = false, need_fsck = false; > > > > > -    char *options = NULL; > > > > >       int recovery, i, valid_super_block; > > > > >       struct curseg_info *seg_i; > > > > >       int retry_cnt = 1; > > > > > @@ -4767,9 +4711,6 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) > > > > >       raw_super = NULL; > > > > >       valid_super_block = -1; > > > > >       recovery = 0; > > > > > -    memset(&fc, 0, sizeof(fc)); > > > > > -    memset(&ctx, 0, sizeof(ctx)); > > > > > -    fc.fs_private = &ctx; > > > > >         /* allocate memory for f2fs-specific super block info */ > > > > >       sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); > > > > > @@ -4820,22 +4761,12 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) > > > > >                           sizeof(raw_super->uuid)); > > > > >         default_options(sbi, false); > > > > > -    /* parse mount options */ > > > > > -    options = kstrdup((const char *)data, GFP_KERNEL); > > > > > -    if (data && !options) { > > > > > -        err = -ENOMEM; > > > > > -        goto free_sb_buf; > > > > > -    } > > > > > - > > > > > -    err = parse_options(&fc, options); > > > > > -    if (err) > > > > > -        goto free_options; > > > > >   -    err = f2fs_check_opt_consistency(&fc, sb); > > > > > +    err = f2fs_check_opt_consistency(fc, sb); > > > > >       if (err < 0) > > > > > -        goto free_options; > > > > > +        goto free_sb_buf; > > > > >   -    f2fs_apply_options(&fc, sb); > > > > > +    f2fs_apply_options(fc, sb); > > > > >         sb->s_maxbytes = max_file_blocks(NULL) << > > > > >                   le32_to_cpu(raw_super->log_blocksize); > > > > > @@ -5160,7 +5091,6 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) > > > > >           if (err) > > > > >               goto sync_free_meta; > > > > >       } > > > > > -    kvfree(options); > > > > >         /* recover broken superblock */ > > > > >       if (recovery) { > > > > > @@ -5255,7 +5185,6 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) > > > > >           kfree(F2FS_OPTION(sbi).s_qf_names[i]); > > > > >   #endif > > > > >       fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy); > > > > > -    kvfree(options); > > > > >   free_sb_buf: > > > > >       kfree(raw_super); > > > > >   free_sbi: > > > > > @@ -5271,14 +5200,39 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) > > > > >       return err; > > > > >   } > > > > >   -static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, > > > > > -            const char *dev_name, void *data) > > > > > +static int f2fs_get_tree(struct fs_context *fc) > > > > >   { > > > > > -    return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); > > > > > +    return get_tree_bdev(fc, f2fs_fill_super); > > > > > +} > > > > > + > > > > > +static int f2fs_reconfigure(struct fs_context *fc) > > > > > +{ > > > > > +    struct super_block *sb = fc->root->d_sb; > > > > > + > > > > > +    return __f2fs_remount(fc, sb); > > > > > +} > > > > > + > > > > > +static void f2fs_fc_free(struct fs_context *fc) > > > > > +{ > > > > > +    struct f2fs_fs_context *ctx = fc->fs_private; > > > > > +    int i; > > > > > + > > > > > +    if (!ctx) > > > > > +        return; > > > > > + > > > > > +#ifdef CONFIG_QUOTA > > > > > +    for (i = 0; i < MAXQUOTAS; i++) > > > > > +        kfree(F2FS_CTX_INFO(ctx).s_qf_names[i]); > > > > > +#endif > > > > > +    fscrypt_free_dummy_policy(&F2FS_CTX_INFO(ctx).dummy_enc_policy); > > > > > +    kfree(ctx); > > > > >   } > > > > >     static const struct fs_context_operations f2fs_context_ops = { > > > > >       .parse_param    = f2fs_parse_param, > > > > > +    .get_tree    = f2fs_get_tree, > > > > > +    .reconfigure = f2fs_reconfigure, > > > > > +    .free    = f2fs_fc_free, > > > > >   }; > > > > >     static void kill_f2fs_super(struct super_block *sb) > > > > > @@ -5322,10 +5276,24 @@ static void kill_f2fs_super(struct super_block *sb) > > > > >       } > > > > >   } > > > > >   +static int f2fs_init_fs_context(struct fs_context *fc) > > > > > +{ > > > > > +    struct f2fs_fs_context *ctx; > > > > > + > > > > > +    ctx = kzalloc(sizeof(struct f2fs_fs_context), GFP_KERNEL); > > > > > +    if (!ctx) > > > > > +        return -ENOMEM; > > > > > + > > > > > +    fc->fs_private = ctx; > > > > > +    fc->ops = &f2fs_context_ops; > > > > > + > > > > > +    return 0; > > > > > +} > > > > > + > > > > >   static struct file_system_type f2fs_fs_type = { > > > > >       .owner        = THIS_MODULE, > > > > >       .name        = "f2fs", > > > > > -    .mount        = f2fs_mount, > > > > > +    .init_fs_context = f2fs_init_fs_context, > > > > >       .kill_sb    = kill_f2fs_super, > > > > >       .fs_flags    = FS_REQUIRES_DEV | FS_ALLOW_IDMAP, > > > > >   }; > > > > > > > >