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Sage Weil8f4e91d2009-10-06 11:31:14 -07001#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 */
10struct ceph_ioctl_layout {
11 __u64 stripe_unit, stripe_count, object_size;
12 __u64 data_pool;
Sage Weil33d49092009-12-02 14:42:39 -080013 __s64 preferred_osd;
Sage Weil8f4e91d2009-10-06 11:31:14 -070014};
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 */
25struct 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
Sage Weil8c6e9222010-04-16 09:53:43 -070040#define CEPH_IOC_LAZYIO _IO(CEPH_IOCTL_MAGIC, 4)
41
Sage Weil8f4e91d2009-10-06 11:31:14 -070042#endif