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Message-ID: <ZDWQcJJ9ceNK9Vi8@google.com>
Date: Tue, 11 Apr 2023 09:53:04 -0700
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: Chao Yu <chao@...nel.org>
Cc: linux-kernel@...r.kernel.org,
linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH] f2fs: fix to check readonly condition
correctly
On 04/11, Chao Yu wrote:
> On 2023/4/10 10:19, Chao Yu wrote:
> > On 2023/4/4 1:59, Jaegeuk Kim wrote:
> > > On 04/02, Chao Yu wrote:
> > > > This patch does below changes:
> > > >
> > > > - If f2fs enables readonly feature or device is readonly, allow to
> > > > mount readonly mode only
> > > > - Introduce f2fs_dev_is_readonly() to indicate whether image or device
> > > > is readonly
> > > > - remove unnecessary f2fs_hw_is_readonly() in f2fs_write_checkpoint()
> > > > and f2fs_convert_inline_inode()
> > > > - enable FLUSH_MERGE only if f2fs is mounted as rw and image/device
> > > > is writable
> >
> > Jaegeuk,
> >
> > Please drop this patch, and help to check below one, thanks. :)
> >
> > f2fs: use f2fs_hw_is_readonly() instead of bdev_read_only()
>
> Oh, I didn't make it clear.
>
> I found you applied both v1 and v2 of this patch.
Yeah, I was keeping the fixes locally. Please check again.
>
> So I mean how about keeping v2:
>
> [PATCH v2] f2fs: fix to check readonly condition correctly
> https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=dev-test&id=2bce08d26c0fe3a4ce1cca03ee0ea0c59d98c0b2
>
> and apply
>
> [PATCH] f2fs: use f2fs_hw_is_readonly() instead of bdev_read_only()
> https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=dev-test&id=7ec21ff2e8f521842938415af741fc72f39c0135
>
> to instead
>
> [PATCH] f2fs: fix to check readonly condition correctly
> https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=dev-test&id=66eb18a8b892afe085097747521fb280a1577ea4
>
> Thanks,
>
> >
> > Thanks,
> >
> > >
> > > What is the problem to solve here?
> > >
> > > >
> > > > Signed-off-by: Chao Yu <chao@...nel.org>
> > > > ---
> > > > fs/f2fs/checkpoint.c | 2 +-
> > > > fs/f2fs/f2fs.h | 10 +++++-----
> > > > fs/f2fs/inline.c | 3 +--
> > > > fs/f2fs/super.c | 13 +++++++------
> > > > 4 files changed, 14 insertions(+), 14 deletions(-)
> > > >
> > > > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> > > > index 8e1db5752fff..1eef597ed393 100644
> > > > --- a/fs/f2fs/checkpoint.c
> > > > +++ b/fs/f2fs/checkpoint.c
> > > > @@ -1604,7 +1604,7 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
> > > > unsigned long long ckpt_ver;
> > > > int err = 0;
> > > > - if (f2fs_readonly(sbi->sb) || f2fs_hw_is_readonly(sbi))
> > > > + if (f2fs_readonly(sbi->sb))
> > > > return -EROFS;
> > > > if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
> > > > diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> > > > index 2d4a7ef62537..7de95133478a 100644
> > > > --- a/fs/f2fs/f2fs.h
> > > > +++ b/fs/f2fs/f2fs.h
> > > > @@ -4446,6 +4446,11 @@ static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
> > > > return false;
> > > > }
> > > > +static inline bool f2fs_dev_is_readonly(struct f2fs_sb_info *sbi)
> > > > +{
> > > > + return f2fs_sb_has_readonly(sbi) || f2fs_hw_is_readonly(sbi);
> > > > +}
> > > > +
> > > > static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
> > > > {
> > > > return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
> > > > @@ -4546,11 +4551,6 @@ static inline void f2fs_handle_page_eio(struct f2fs_sb_info *sbi, pgoff_t ofs,
> > > > }
> > > > }
> > > > -static inline bool f2fs_is_readonly(struct f2fs_sb_info *sbi)
> > > > -{
> > > > - return f2fs_sb_has_readonly(sbi) || f2fs_readonly(sbi->sb);
> > > > -}
> > > > -
> > > > #define EFSBADCRC EBADMSG /* Bad CRC detected */
> > > > #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
> > > > diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
> > > > index 72269e7efd26..2c36f2dc2317 100644
> > > > --- a/fs/f2fs/inline.c
> > > > +++ b/fs/f2fs/inline.c
> > > > @@ -203,8 +203,7 @@ int f2fs_convert_inline_inode(struct inode *inode)
> > > > struct page *ipage, *page;
> > > > int err = 0;
> > > > - if (!f2fs_has_inline_data(inode) ||
> > > > - f2fs_hw_is_readonly(sbi) || f2fs_readonly(sbi->sb))
> > > > + if (!f2fs_has_inline_data(inode) || f2fs_readonly(sbi->sb))
> > > > return 0;
> > > > err = f2fs_dquot_initialize(inode);
> > > > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> > > > index d016f398fcad..db7649010c12 100644
> > > > --- a/fs/f2fs/super.c
> > > > +++ b/fs/f2fs/super.c
> > > > @@ -1382,15 +1382,16 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
> > > > return -EINVAL;
> > > > }
> > > > - if (f2fs_is_readonly(sbi) && test_opt(sbi, FLUSH_MERGE)) {
> > > > + if (f2fs_dev_is_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
> > > > + f2fs_err(sbi, "Allow to mount readonly mode only");
> > > > + return -EROFS;
> > > > + }
> > > > +
> > > > + if (f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) {
> > > > f2fs_err(sbi, "FLUSH_MERGE not compatible with readonly mode");
> > > > return -EINVAL;
> > > > }
> > > > - if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
> > > > - f2fs_err(sbi, "Allow to mount readonly mode only");
> > > > - return -EROFS;
> > > > - }
> > > > return 0;
> > > > }
> > > > @@ -2122,7 +2123,7 @@ static void default_options(struct f2fs_sb_info *sbi)
> > > > set_opt(sbi, MERGE_CHECKPOINT);
> > > > F2FS_OPTION(sbi).unusable_cap = 0;
> > > > sbi->sb->s_flags |= SB_LAZYTIME;
> > > > - if (!f2fs_is_readonly(sbi))
> > > > + if (!f2fs_readonly(sbi->sb) && !f2fs_dev_is_readonly(sbi))
> > > > set_opt(sbi, FLUSH_MERGE);
> > > > if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
> > > > set_opt(sbi, DISCARD);
> > > > --
> > > > 2.36.1
> >
> >
> > _______________________________________________
> > Linux-f2fs-devel mailing list
> > Linux-f2fs-devel@...ts.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
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