Re: [PATCH 5/5] efivarfs: efivarfs_fill_super() ensure we clean up correctly on error

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Hi Andy,

If we break out of the loop on the second (and onwards) iteration,
won't we still have the other inodes and dentries remaining
allocated?

As we calling this from the mount_single() wrapper:

         return mount_single(fs_type, flags, data, efivarfs_fill_super);


which does this:

     struct dentry *mount_single(struct file_system_type *fs_type,
	    int flags, void *data,
	    int (*fill_super)(struct super_block *, void *, int))
     {
     [...]
		    error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
		    if (error) {
			    deactivate_locked_super(s);
			    return ERR_PTR(error);
		    }
     [...]

I am expecting us to get called back via deactivate_locked_super(),
which calls sb->kill_sb() which is:

     static void efivarfs_kill_sb(struct super_block *sb)
     {
	    kill_litter_super(sb);
	    efivarfs_sb = NULL;
     }

Which I believe will clean them up.

Awesome, thanks for that. Looks good to me.

Acked-by: Jeremy Kerr <jeremy.kerr@xxxxxxxxxxxxx>

Cheers,


Jeremy Kerr

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