Re: [PATCH v2] hugetlbfs: Remove useless BUG_ON(!inode) in hugetlbfs_setattr()

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CC Andrew

On 1/18/21 3:07 AM, Miaohe Lin wrote:
> When we reach here with inode = NULL, we should have crashed as inode has
> already been dereferenced via hstate_inode. So this BUG_ON(!inode) does not
> take effect and should be removed.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
> ---
>  fs/hugetlbfs/inode.c | 2 --
>  1 file changed, 2 deletions(-)

Thanks,

Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>

-- 
Mike Kravetz

> 
> diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
> index 016c863b493b..79464963f95e 100644
> --- a/fs/hugetlbfs/inode.c
> +++ b/fs/hugetlbfs/inode.c
> @@ -759,8 +759,6 @@ static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr)
>  	unsigned int ia_valid = attr->ia_valid;
>  	struct hugetlbfs_inode_info *info = HUGETLBFS_I(inode);
>  
> -	BUG_ON(!inode);
> -
>  	error = setattr_prepare(dentry, attr);
>  	if (error)
>  		return error;
> 




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