Re: [PATCH 06/11] xfs: remove the readpage / readpages tracing code

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On Tue, Oct 01, 2019 at 09:11:47AM +0200, Christoph Hellwig wrote:
> The actual iomap implementations now have equivalent trace points.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---

Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>

>  fs/xfs/xfs_aops.c  |  2 --
>  fs/xfs/xfs_trace.h | 26 --------------------------
>  2 files changed, 28 deletions(-)
> 
> diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
> index f16d5f196c6b..b6101673c8fb 100644
> --- a/fs/xfs/xfs_aops.c
> +++ b/fs/xfs/xfs_aops.c
> @@ -1160,7 +1160,6 @@ xfs_vm_readpage(
>  	struct file		*unused,
>  	struct page		*page)
>  {
> -	trace_xfs_vm_readpage(page->mapping->host, 1);
>  	return iomap_readpage(page, &xfs_iomap_ops);
>  }
>  
> @@ -1171,7 +1170,6 @@ xfs_vm_readpages(
>  	struct list_head	*pages,
>  	unsigned		nr_pages)
>  {
> -	trace_xfs_vm_readpages(mapping->host, nr_pages);
>  	return iomap_readpages(mapping, pages, nr_pages, &xfs_iomap_ops);
>  }
>  
> diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
> index eaae275ed430..eae4b29c174e 100644
> --- a/fs/xfs/xfs_trace.h
> +++ b/fs/xfs/xfs_trace.h
> @@ -1197,32 +1197,6 @@ DEFINE_PAGE_EVENT(xfs_writepage);
>  DEFINE_PAGE_EVENT(xfs_releasepage);
>  DEFINE_PAGE_EVENT(xfs_invalidatepage);
>  
> -DECLARE_EVENT_CLASS(xfs_readpage_class,
> -	TP_PROTO(struct inode *inode, int nr_pages),
> -	TP_ARGS(inode, nr_pages),
> -	TP_STRUCT__entry(
> -		__field(dev_t, dev)
> -		__field(xfs_ino_t, ino)
> -		__field(int, nr_pages)
> -	),
> -	TP_fast_assign(
> -		__entry->dev = inode->i_sb->s_dev;
> -		__entry->ino = inode->i_ino;
> -		__entry->nr_pages = nr_pages;
> -	),
> -	TP_printk("dev %d:%d ino 0x%llx nr_pages %d",
> -		  MAJOR(__entry->dev), MINOR(__entry->dev),
> -		  __entry->ino,
> -		  __entry->nr_pages)
> -)
> -
> -#define DEFINE_READPAGE_EVENT(name)		\
> -DEFINE_EVENT(xfs_readpage_class, name,	\
> -	TP_PROTO(struct inode *inode, int nr_pages), \
> -	TP_ARGS(inode, nr_pages))
> -DEFINE_READPAGE_EVENT(xfs_vm_readpage);
> -DEFINE_READPAGE_EVENT(xfs_vm_readpages);
> -
>  DECLARE_EVENT_CLASS(xfs_imap_class,
>  	TP_PROTO(struct xfs_inode *ip, xfs_off_t offset, ssize_t count,
>  		 int whichfork, struct xfs_bmbt_irec *irec),
> -- 
> 2.20.1
> 



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