Re: [PATCH] xfs_io: rework includes for statx structures

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On Tue, Apr 30, 2019 at 03:02:56PM -0500, Eric Sandeen wrote:
> Only include the kernel's linux/stat.h headers if we haven't
> already picked up statx bits from glibc, to avoid redefinition.
> 
> Suggested-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> Tested-by: Bill O'Donnell <billodo@xxxxxxxxxx>
> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>

We'll never have problems again!! :D

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

(I built it on Ubuntu 18.04 LTS if anyone cares)

--D

> ---
> 
> diff --git a/io/stat.c b/io/stat.c
> index 517be66..37c0b2e 100644
> --- a/io/stat.c
> +++ b/io/stat.c
> @@ -6,9 +6,6 @@
>   * Portions of statx support written by David Howells (dhowells@xxxxxxxxxx)
>   */
>  
> -/* Try to pick up statx definitions from the system headers. */
> -#include <linux/stat.h>
> -
>  #include "command.h"
>  #include "input.h"
>  #include "init.h"
> diff --git a/io/statx.h b/io/statx.h
> index 4f40eaa..c6625ac 100644
> --- a/io/statx.h
> +++ b/io/statx.h
> @@ -33,7 +33,14 @@
>  # endif
>  #endif
>  
> +
> +#ifndef STATX_TYPE
> +/* Pick up kernel definitions if glibc didn't already provide them */
> +#include <linux/stat.h>
> +#endif
> +
>  #ifndef STATX_TYPE
> +/* Local definitions if glibc & kernel headers didn't already provide them */
>  
>  /*
>   * Timestamp structure for the timestamps in struct statx.
> 



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