Re: [PATCH] hfsplus: return file attributes on statx

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On Mon, Oct 15, 2018 at 05:26:23PM -0700, Viacheslav Dubeyko wrote:
> On Sun, 2018-10-14 at 13:35 -0300, Ernesto A. Fernández wrote:
> > The immutable, append-only and no-dump attributes can only be retrieved
> > with an ioctl; implement the ->getattr() method to return them on statx.
> > Do not return the inode birthtime yet, because the issue of how best to
> > handle the post-2038 timestamps is still under discussion.
> > 
> 
> As far as I can see, the stable branch doesn't contain the inode
> birthtime yet. So, I believe we have no troubles with it.

What stable branch?  What are you talking about?  Of course the inode
birthtime is in the code, how could it not be?

> 
> > This patch is needed to pass xfstests generic/424.
> 
> Do you mean that the patch isn't been tested yet? Do it needs to wait
> the testing result report before taking the patch? Otherwise, it looks
> weird to have such remark in the comment section of the patch.

Look, I'm not a native speaker either, but I think that's a pretty simple
sentence.  You need this patch if you want xfstests generic/424 to pass.

> 
> > 
> > Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@xxxxxxxxx>
> > ---
> >  fs/hfsplus/dir.c        |  1 +
> >  fs/hfsplus/hfsplus_fs.h |  2 ++
> >  fs/hfsplus/inode.c      | 21 +++++++++++++++++++++
> >  3 files changed, 24 insertions(+)
> > 
> > diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
> > index f37662675c3a..29a9dcfbe81f 100644
> > --- a/fs/hfsplus/dir.c
> > +++ b/fs/hfsplus/dir.c
> > @@ -565,6 +565,7 @@ const struct inode_operations hfsplus_dir_inode_operations = {
> >  	.symlink		= hfsplus_symlink,
> >  	.mknod			= hfsplus_mknod,
> >  	.rename			= hfsplus_rename,
> > +	.getattr		= hfsplus_getattr,
> >  	.listxattr		= hfsplus_listxattr,
> >  };
> >  
> > diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
> > index dd7ad9f13e3a..b8471bf05def 100644
> > --- a/fs/hfsplus/hfsplus_fs.h
> > +++ b/fs/hfsplus/hfsplus_fs.h
> > @@ -488,6 +488,8 @@ void hfsplus_inode_write_fork(struct inode *inode,
> >  			      struct hfsplus_fork_raw *fork);
> >  int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd);
> >  int hfsplus_cat_write_inode(struct inode *inode);
> > +int hfsplus_getattr(const struct path *path, struct kstat *stat,
> > +		    u32 request_mask, unsigned int query_flags);
> >  int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
> >  		       int datasync);
> >  
> > diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
> > index d7ab9d8c4b67..d131c8ea7eb6 100644
> > --- a/fs/hfsplus/inode.c
> > +++ b/fs/hfsplus/inode.c
> > @@ -270,6 +270,26 @@ static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr)
> >  	return 0;
> >  }
> >  
> > +int hfsplus_getattr(const struct path *path, struct kstat *stat,
> > +		    u32 request_mask, unsigned int query_flags)
> > +{
> > +	struct inode *inode = d_inode(path->dentry);
> > +	struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
> > +
> > +	if (inode->i_flags & S_APPEND)
> > +		stat->attributes |= STATX_ATTR_APPEND;
> > +	if (inode->i_flags & S_IMMUTABLE)
> > +		stat->attributes |= STATX_ATTR_IMMUTABLE;
> > +	if (hip->userflags & HFSPLUS_FLG_NODUMP)
> > +		stat->attributes |= STATX_ATTR_NODUMP;
> > +
> > +	stat->attributes_mask |= STATX_ATTR_APPEND | STATX_ATTR_IMMUTABLE |
> > +				 STATX_ATTR_NODUMP;
> > +
> > +	generic_fillattr(inode, stat);
> > +	return 0;
> > +}
> > +
> >  int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
> >  		       int datasync)
> >  {
> > @@ -329,6 +349,7 @@ int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
> >  
> >  static const struct inode_operations hfsplus_file_inode_operations = {
> >  	.setattr	= hfsplus_setattr,
> > +	.getattr	= hfsplus_getattr,
> >  	.listxattr	= hfsplus_listxattr,
> >  };
> >  
> 
> The patch looks good. I don't see any issue with it.
> 
> Reviewed-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
> 
> Thanks,
> Vyacheslav Dubeyko.
> 
> 



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