linux-kernel - Re: [PATCH 18/20] ceph: ioctls

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Date:	Tue, 8 Sep 2009 16:05:09 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Sage Weil <sage@...dream.net>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 18/20] ceph: ioctls

On Tue,  8 Sep 2009 15:56:39 -0700 Sage Weil wrote:

> A few Ceph ioctls for getting and setting file layout (striping)
> parameters.
> 
> Signed-off-by: Sage Weil <sage@...dream.net>
> ---
>  fs/ceph/ioctl.c |   98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  fs/ceph/ioctl.h |   20 +++++++++++
>  2 files changed, 118 insertions(+), 0 deletions(-)
>  create mode 100644 fs/ceph/ioctl.c
>  create mode 100644 fs/ceph/ioctl.h


> diff --git a/fs/ceph/ioctl.h b/fs/ceph/ioctl.h
> new file mode 100644
> index 0000000..56f5e2c
> --- /dev/null
> +++ b/fs/ceph/ioctl.h
> @@ -0,0 +1,20 @@
> +#ifndef FS_CEPH_IOCTL_H
> +#define FS_CEPH_IOCTL_H
> +
> +#include <linux/ioctl.h>
> +#include <linux/types.h>
> +
> +#define CEPH_IOCTL_MAGIC 0x97
> +
> +/* just use u64 to align sanely on all archs */
> +struct ceph_ioctl_layout {
> +	__u64 stripe_unit, stripe_count, object_size;
> +	__u64 data_pool;
> +};
> +
> +#define CEPH_IOC_GET_LAYOUT _IOR(CEPH_IOCTL_MAGIC, 1,		\
> +				   struct ceph_ioctl_layout)
> +#define CEPH_IOC_SET_LAYOUT _IOW(CEPH_IOCTL_MAGIC, 2,		\
> +				   struct ceph_ioctl_layout)
> +
> +#endif
> -- 

Please also update Documentation/ioctl/ioctl-number.txt


---
~Randy
LPC 2009, Sept. 23-25, Portland, Oregon
http://linuxplumbersconf.org/2009/
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