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SubjectRe: linux-next: build failure after merge of the vfs tree
On 10/16, Stephen Rothwell wrote:
> Hi all,
>
> On Wed, 3 Oct 2018 10:32:22 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> >
> > After merging the vfs tree, today's linux-next build (x86_64 allmodconfig)
> > failed like this:
> >
> > /home/sfr/next/next/fs/f2fs/super.c: In function 'f2fs_remount':
> > /home/sfr/next/next/fs/f2fs/super.c:1589:16: error: 'MS_RDONLY' undeclared (first use in this function); did you mean 'IS_RDONLY'?
> > if ((*flags & MS_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
> > ^~~~~~~~~
> > IS_RDONLY
> >
> > Caused by commit
> >
> > dcf8001d292b ("vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled")
> >
> > interacting with commit
> >
> > f80f781514ef ("f2fs: checkpoint disabling")
> >
> > from the f2fs tree.
> >
> > I have added the following merge fix patch for today. If it is correct,
> > I assume that it could be applied to f2fs tree as the the other uses of
> > MS_RDONLY have already been changed to SB_RDONLY. (There is another
> > use of MS_READONLY in this function that is already cleaned up in the
> > vfs tree commit.)
>
> Can this be applied to the f2fs tree?

Hi Stephen,

I've modified this patch in f2fs tree to use SB_RDONLY.

Thanks,

>
> > From: Stephen Rothwell <sfr@canb.auug.org.au>
> > Date: Wed, 3 Oct 2018 10:27:04 +1000
> > Subject: [PATCH] f2fs: update for MS_* flags mostly going away
> >
> > Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> > ---
> > fs/f2fs/super.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> > index 6ed77589ff2b..b612a9e4a35e 100644
> > --- a/fs/f2fs/super.c
> > +++ b/fs/f2fs/super.c
> > @@ -1586,7 +1586,7 @@ static int f2fs_remount(struct super_block *sb, int *flags,
> > goto restore_opts;
> > }
> >
> > - if ((*flags & MS_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
> > + if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
> > err = -EINVAL;
> > f2fs_msg(sbi->sb, KERN_WARNING,
> > "disabling checkpoint not compatible with read-only");
> > --
> > 2.18.0
>
> --
> Cheers,
> Stephen Rothwell


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