[linux-2.6-block.git] / fs / ceph / ioctl.h

#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;
	__s64 preferred_osd;
};

#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)

/*
 * Extract identity, address of the OSD and object storing a given
 * file offset.
 */
struct ceph_ioctl_dataloc {
	__u64 file_offset;           /* in+out: file offset */
	__u64 object_offset;         /* out: offset in object */
	__u64 object_no;             /* out: object # */
	__u64 object_size;           /* out: object size */
	char object_name[64];        /* out: object name */
	__u64 block_offset;          /* out: offset in block */
	__u64 block_size;            /* out: block length */
	__s64 osd;                   /* out: osd # */
	struct sockaddr_storage osd_addr; /* out: osd address */
};

#define CEPH_IOC_GET_DATALOC _IOWR(CEPH_IOCTL_MAGIC, 3,	\
				   struct ceph_ioctl_dataloc)

#endif
Commit	Line	Data
8f4e91de SW	1	#ifndef FS_CEPH_IOCTL_H
	2	#define FS_CEPH_IOCTL_H
	3
	4	#include <linux/ioctl.h>
	5	#include <linux/types.h>
	6
	7	#define CEPH_IOCTL_MAGIC 0x97
	8
	9	/* just use u64 to align sanely on all archs */
	10	struct ceph_ioctl_layout {
	11	__u64 stripe_unit, stripe_count, object_size;
	12	__u64 data_pool;
33d4909c	13	__s64 preferred_osd;
8f4e91de SW	14	};
	15
	16	#define CEPH_IOC_GET_LAYOUT _IOR(CEPH_IOCTL_MAGIC, 1, \
	17	struct ceph_ioctl_layout)
	18	#define CEPH_IOC_SET_LAYOUT _IOW(CEPH_IOCTL_MAGIC, 2, \
	19	struct ceph_ioctl_layout)
	20
	21	/*
	22	* Extract identity, address of the OSD and object storing a given
	23	* file offset.
	24	*/
	25	struct ceph_ioctl_dataloc {
	26	__u64 file_offset; /* in+out: file offset */
	27	__u64 object_offset; /* out: offset in object */
	28	__u64 object_no; /* out: object # */
	29	__u64 object_size; /* out: object size */
	30	char object_name[64]; /* out: object name */
	31	__u64 block_offset; /* out: offset in block */
	32	__u64 block_size; /* out: block length */
	33	__s64 osd; /* out: osd # */
	34	struct sockaddr_storage osd_addr; /* out: osd address */
	35	};
	36
	37	#define CEPH_IOC_GET_DATALOC _IOWR(CEPH_IOCTL_MAGIC, 3, \
	38	struct ceph_ioctl_dataloc)
	39
	40	#endif