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SubjectRe: [RFC PATCH] i_version: remount support
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On Tue, 2008-10-07 at 07:48 -0400, Christoph Hellwig wrote:
> On Tue, Oct 07, 2008 at 07:30:48AM -0400, Mimi Zohar wrote:
> > Add support for remounting a filesystem with the i_version option.
> >
> > Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
> > ---
> > diff --git a/fs/super.c b/fs/super.c
> > index e931ae9..3758cbe 100644
> > --- a/fs/super.c
> > +++ b/fs/super.c
> > @@ -641,6 +641,8 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
> > return retval;
> > }
> > sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK);
> > + if (flags & MS_I_VERSION)
> > + sb->s_flags |= MS_I_VERSION;
>
> The proper way would be to add it to MS_RMT_MASK.
>

That works. Here's the replacement patch.

Thanks!

Mimi

Add support for remounting a filesystem with the i_version option.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>

Index: security-testing-2.6/include/linux/fs.h
===================================================================
--- security-testing-2.6.orig/include/linux/fs.h
+++ security-testing-2.6/include/linux/fs.h
@@ -134,7 +134,7 @@ extern int dir_notify_enable;
/*
* Superblock flags that can be altered by MS_REMOUNT
*/
-#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK)
+#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION)

/*
* Old magic mount flag and mask



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