Re: [PATCH 3/8] xfs: assert that xfs_reflink_allocate_cow is called with XFS_ILOCK_EXCL

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On Tue, Mar 13, 2018 at 03:35:56PM +0100, Christoph Hellwig wrote:
> Now that we convert COW preallocations from unwritten to real on every
> call this function needs to be called with the ilock held exclusively.
> 
> Fortunately we already do that, but update the assert to match.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

--D

> ---
>  fs/xfs/xfs_reflink.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
> index d81c4f868d69..90aac8889dd9 100644
> --- a/fs/xfs/xfs_reflink.c
> +++ b/fs/xfs/xfs_reflink.c
> @@ -394,7 +394,7 @@ xfs_reflink_allocate_cow(
>  
>  retry:
>  	ASSERT(xfs_is_reflink_inode(ip));
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL | XFS_ILOCK_SHARED));
> +	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
>  
>  	/*
>  	 * Even if the extent is not shared we might have a preallocation for
> -- 
> 2.14.2
> 
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