ACK: [Vivid][SRU][PATCH] UBUNTU: SAUCE: Don't use atomic read in evlist.c

[Luis Henriques]

On Tue, Jul 07, 2015 at 12:00:10PM -0500, Chris J Arges wrote:
> BugLink: http://bugs.launchpad.net/bugs/1410673
> 
> commit 19a64c0f56ebb33fd8a19ac65351161557846236 introduced a build error
> because it references atomic_read before changes to evlist.h adding atomic_t
> and proper includes files. Instead of including additional changes, use the
> older way of simply using refcnt without using atomic_read.
> 
> Signed-off-by: Chris J Arges <chris.j.arges at canonical.com>
> ---
>  tools/perf/util/evlist.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
> index 5460e65..cc171f0 100644
> --- a/tools/perf/util/evlist.c
> +++ b/tools/perf/util/evlist.c
> @@ -643,7 +643,7 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)
>  	/*
>  	 * Check if event was unmapped due to a POLLHUP/POLLERR.
>  	 */
> -	if (!atomic_read(&md->refcnt))
> +	if (!md->refcnt)
>  		return NULL;
>  
>  	head = perf_mmap__read_head(md);
> -- 
> 1.9.1
> 
> 
> -- 
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> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Cheers,
--
Luís
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