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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-xfs@vger.kernel.org, bfoster@redhat.com
Subject: Re: [PATCH 3/9] xfs: handle "raw" delayed extents xfs_reflink_trim_around_shared
Date: Mon, 17 Oct 2016 09:27:24 -0700	[thread overview]
Message-ID: <20161017162724.GC1120@birch.djwong.org> (raw)
In-Reply-To: <1476521554-1894-4-git-send-email-hch@lst.de>

On Sat, Oct 15, 2016 at 10:52:28AM +0200, Christoph Hellwig wrote:
> Delalloc extents in the extent list contain the number of reserved
> indirect blocks in their startblock value and don't use the magic
> DELAYSTARTBLOCK constant.  Ensure that xfs_reflink_trim_around_shared
> handles them properly by checking for isnullstartblock().
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

> ---
>  fs/xfs/xfs_reflink.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
> index 5965e94..46c824c 100644
> --- a/fs/xfs/xfs_reflink.c
> +++ b/fs/xfs/xfs_reflink.c
> @@ -182,7 +182,8 @@ xfs_reflink_trim_around_shared(
>  	if (!xfs_is_reflink_inode(ip) ||
>  	    ISUNWRITTEN(irec) ||
>  	    irec->br_startblock == HOLESTARTBLOCK ||
> -	    irec->br_startblock == DELAYSTARTBLOCK) {
> +	    irec->br_startblock == DELAYSTARTBLOCK ||
> +	    isnullstartblock(irec->br_startblock)) {
>  		*shared = false;
>  		return 0;
>  	}
> -- 
> 2.1.4
> 

  parent reply	other threads:[~2016-10-17 16:27 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-15  8:52 optimize the COW I/O path V2 Christoph Hellwig
2016-10-15  8:52 ` [PATCH 1/9] iomap: add IOMAP_REPORT Christoph Hellwig
2016-10-17 15:35   ` Brian Foster
2016-10-17 16:18   ` Darrick J. Wong
2016-10-15  8:52 ` [PATCH 2/9] xfs: add xfs_trim_extent Christoph Hellwig
2016-10-17 15:35   ` Brian Foster
2016-10-17 16:27   ` Darrick J. Wong
2016-10-15  8:52 ` [PATCH 3/9] xfs: handle "raw" delayed extents xfs_reflink_trim_around_shared Christoph Hellwig
2016-10-17 15:35   ` Brian Foster
2016-10-17 16:27   ` Darrick J. Wong [this message]
2016-10-15  8:52 ` [PATCH 4/9] xfs: don't bother looking at the refcount tree for reads Christoph Hellwig
2016-10-17 15:36   ` Brian Foster
2016-10-17 16:41   ` Darrick J. Wong
2016-10-15  8:52 ` [PATCH 5/9] xfs: optimize writes to reflink files Christoph Hellwig
2016-10-17 17:19   ` Brian Foster
2016-10-17 17:34   ` Darrick J. Wong
2016-10-15  8:52 ` [PATCH 6/9] xfs: refactor xfs_bunmapi_cow Christoph Hellwig
2016-10-17 17:21   ` Brian Foster
2016-10-17 17:44     ` Christoph Hellwig
2016-10-17 17:53       ` Brian Foster
2016-10-17 18:32   ` Darrick J. Wong
2016-10-15  8:52 ` [PATCH 7/9] xfs: optimize xfs_reflink_cancel_cow_blocks Christoph Hellwig
2016-10-17 17:52   ` Brian Foster
2016-10-17 18:33   ` Darrick J. Wong
2016-10-15  8:52 ` [PATCH 8/9] xfs: optimize xfs_reflink_end_cow Christoph Hellwig
2016-10-17 17:53   ` Brian Foster
2016-10-17 18:34   ` Darrick J. Wong
2016-10-15  8:52 ` [PATCH 9/9] xfs: remove xfs_bunmapi_cow Christoph Hellwig
2016-10-17 17:53   ` Brian Foster
2016-10-17 18:34   ` Darrick J. Wong
  -- strict thread matches above, loose matches on Subject: below --
2016-10-10 13:37 optimize the COW I/O path Christoph Hellwig
2016-10-10 13:37 ` [PATCH 3/9] xfs: handle "raw" delayed extents xfs_reflink_trim_around_shared Christoph Hellwig

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