#ifndef __LINUX_CLASS_OBD_H
#define __LINUX_CLASS_OBD_H
+/*
+ * Copyright (C) 2001 Cluster File Systems, Inc.
+ *
+ * This code is issued under the GNU General Public License.
+ * See the file COPYING in this distribution
+ */
+#ifndef __KERNEL__
+#include <stdint.h>
+#define __KERNEL__
+#include <linux/list.h>
+#undef __KERNEL__
+#else
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/types.h>
#include <linux/fs.h>
-#include <linux/ext2_fs.h>
#include <linux/time.h>
#include <linux/obd.h>
-#include <linux/obd_sim.h>
+#include <linux/obd_ext2.h>
+#include <linux/obd_filter.h>
#include <linux/obd_snap.h>
+#include <linux/obd_trace.h>
/* #include <linux/obd_fc.h> */
#include <linux/obd_raid1.h>
#include <linux/obd_rpc.h>
+#endif
-#define OBD_PSDEV_MAJOR 120
-#define MAX_OBD_DEVICES 8
-#define MAX_MULTI 16
-
-typedef unsigned long objid;
-typedef struct inode obdattr;
-#if 0
-struct obdattr {
- objid oa_id;
- umode_t oa_mode;
- nlink_t oa_nlink;
- uid_t oa_uid;
- gid_t oa_gid;
- off_t oa_size;
- time_t oa_atime;
- time_t oa_mtime;
- time_t oa_ctime;
- unsigned long oa_blksize;
- unsigned long oa_blocks;
- char oa_data[116];
- struct obd_ops *oa_op;
-};
+/*
+ * ======== OBD type Declarations ===========
+ */
+#define MIN(a,b) (((a)<(b)) ? (a): (b))
+#define MAX(a,b) (((a)>(b)) ? (a): (b))
+#define MKSTR(ptr) ((ptr))? (ptr) : ""
+
+static inline int size_round(int val)
+{
+ return (val + 3) & (~0x3);
+}
+static inline size_t round_strlen(char *str)
+{
+ return size_round(strlen(str) + 1);
+}
+
+#ifdef __KERNEL__
+static inline char *strdup(char *str)
+{
+ char *tmp = kmalloc(strlen(str) + 1, GFP_KERNEL);
+ if (tmp)
+ memcpy(tmp, str, strlen(str) + 1);
+
+ return NULL;
+}
#endif
+/*
+ * copy sizeof(type) bytes from pointer to var and move ptr forward.
+ * return EFAULT if pointer goes beyond end
+ */
+#define UNLOGV(var,type,ptr,end) do {var = *(type *)ptr; ptr += sizeof(type); if (ptr > end ) return -EFAULT;} while (0)
+
+
+/* the following two macros convert to little endian */
+/* type must be 32 or 64 */
+#define LUNLOGV(var,type,ptr,end) \
+do { \
+ var = le_to_cpu##type(*(type *)ptr); \
+ ptr += sizeof(type); \
+ if (ptr > end ) \
+ return -EFAULT; \
+} while (0)
+
+/* now log values */
+#define LOGV(var,type,ptr) \
+do { \
+ *((type *)ptr) = var; \
+ ptr += sizeof(type); \
+} while (0)
+
+/* and in network order */
+#define LLOGV(var,type,ptr) \
+do { \
+ *((type *)ptr) = cpu_to_le##type(var); \
+ ptr += sizeof(type); \
+} while (0)
+
+/*
+ * set var to point at (type *)ptr, move ptr forward with sizeof(type)
+ * return from function with EFAULT if ptr goes beyond end
+ */
+#define UNLOGP(var,type,ptr,end) do {var = (type *)ptr; ptr += sizeof(type); if (ptr > end ) return -EFAULT; } while (0)
-extern struct obd_device obd_dev[MAX_OBD_DEVICES];
+/*
+ * set var to point at (char *)ptr, move ptr forward by size_round(len);
+ * return from function with EFAULT if ptr goes beyond end
+ */
+#define UNLOGL(var,type,len,ptr,end) do {var = (type *)ptr; ptr += size_round(len * sizeof(type)); if (ptr > end ) return -EFAULT; } while (0)
+
+
+#define LOGL(var,len,ptr) do {memcpy((char *)ptr, (const char *)var, len); ptr += size_round(len);} while (0)
+
+typedef uint64_t obd_id;
+typedef uint64_t obd_gr;
+typedef uint64_t obd_time;
+typedef uint64_t obd_size;
+typedef uint64_t obd_off;
+typedef uint64_t obd_blocks;
+typedef uint32_t obd_blksize;
+typedef uint32_t obd_mode;
+typedef uint32_t obd_uid;
+typedef uint32_t obd_gid;
+typedef uint32_t obd_rdev;
+typedef uint32_t obd_flag;
+typedef uint32_t obd_count;
+
+
+
+#define OBD_FL_INLINEDATA (0x00000001UL)
+#define OBD_FL_OBDMDEXISTS (0x00000002UL)
+
+#define OBD_INLINESZ 60
+#define OBD_OBDMDSZ 60
+/* Note: 64-bit types are 64-bit aligned in structure */
+struct obdo {
+ obd_id o_id;
+ obd_gr o_gr;
+ obd_time o_atime;
+ obd_time o_mtime;
+ obd_time o_ctime;
+ obd_size o_size;
+ obd_blocks o_blocks;
+ obd_blksize o_blksize;
+ obd_mode o_mode;
+ obd_uid o_uid;
+ obd_gid o_gid;
+ obd_flag o_flags;
+ obd_flag o_obdflags;
+ obd_count o_nlink;
+ obd_count o_generation;
+ obd_flag o_valid; /* hot fields in this obdo */
+ char o_inline[OBD_INLINESZ];
+ char o_obdmd[OBD_OBDMDSZ];
+ struct list_head o_list;
+ struct obd_ops *o_op;
+};
-
+struct obd_ioctl_data {
+ uint32_t ioc_len;
+ uint32_t ioc_version;
+ uint32_t ioc_conn1;
+ uint32_t ioc_conn2;
+ struct obdo ioc_obdo1;
+ struct obdo ioc_obdo2;
+ obd_size ioc_count;
+ obd_off ioc_offset;
+ uint32_t ioc_dev;
+
+ /* buffers the kernel will treat as user pointers */
+ uint32_t ioc_plen1;
+ char *ioc_pbuf1;
+ uint32_t ioc_plen2;
+ char *ioc_pbuf2;
+
+ /* two inline buffers */
+ uint32_t ioc_inllen1;
+ char *ioc_inlbuf1;
+ uint32_t ioc_inllen2;
+ char *ioc_inlbuf2;
+
+ char ioc_bulk[0];
+};
+
+#define OBD_MD_FLALL (~0UL)
+#define OBD_MD_FLID (0x00000001UL)
+#define OBD_MD_FLATIME (0x00000002UL)
+#define OBD_MD_FLMTIME (0x00000004UL)
+#define OBD_MD_FLCTIME (0x00000008UL)
+#define OBD_MD_FLSIZE (0x00000010UL)
+#define OBD_MD_FLBLOCKS (0x00000020UL)
+#define OBD_MD_FLBLKSZ (0x00000040UL)
+#define OBD_MD_FLMODE (0x00000080UL)
+#define OBD_MD_FLUID (0x00000100UL)
+#define OBD_MD_FLGID (0x00000200UL)
+#define OBD_MD_FLFLAGS (0x00000400UL)
+#define OBD_MD_FLOBDFLG (0x00000800UL)
+#define OBD_MD_FLNLINK (0x00001000UL)
+#define OBD_MD_FLGENER (0x00002000UL)
+#define OBD_MD_FLINLINE (0x00004000UL)
+#define OBD_MD_FLOBDMD (0x00008000UL)
+#define OBD_MD_FLNOTOBD (~(OBD_MD_FLOBDMD | OBD_MD_FLOBDFLG | OBD_MD_FLBLOCKS))
+
+/*
+ * ======== OBD Device Declarations ===========
+ */
+
+
+#define OBD_PSDEV_MAJOR 186
+#define MAX_OBD_DEVICES 8
+#define MAX_MULTI 16
+
+
+extern struct obd_device obd_dev[MAX_OBD_DEVICES];
#define OBD_ATTACHED 0x1
#define OBD_SET_UP 0x2
struct obd_conn {
- struct obd_device *oc_dev;
- unsigned int oc_id;
+ struct obd_device *oc_dev;
+ uint32_t oc_id;
};
+typedef struct {
+ uint32_t len;
+ char * name;
+ struct dentry *dentry; /* file system obd device names */
+ __u8 _uuid[16]; /* uuid obd device names */
+} obd_devicename;
+
+
+#ifdef __KERNEL__
/* corresponds to one of the obdx */
struct obd_device {
- struct obd_type *obd_type;
- int obd_minor;
- int obd_flags;
- int obd_refcnt;
- int obd_multi_count;
- struct obd_conn obd_multi_conn[MAX_MULTI];
- unsigned int obd_gen_last_id;
- unsigned long obd_gen_prealloc_quota;
- struct list_head obd_gen_clients;
- union {
- struct ext2_obd ext2;
- struct raid1_obd raid1;
- struct snap_obd snap;
- struct rpc_obd rpc;
- /* struct fc_obd fc; */
- } u;
+ struct obd_type *obd_type;
+ int obd_minor;
+ int obd_flags;
+ int obd_refcnt;
+ obd_devicename obd_fsname;
+ struct proc_dir_entry *obd_proc_entry;
+ int obd_multi_count;
+ struct obd_conn obd_multi_conn[MAX_MULTI];
+ unsigned int obd_gen_last_id;
+ unsigned long obd_gen_prealloc_quota;
+ struct list_head obd_gen_clients;
+ union {
+ struct ext2_obd ext2;
+ struct filter_obd filter;
+ struct raid1_obd raid1;
+ struct snap_obd snap;
+ struct trace_obd trace;
+ /* struct fc_obd fc; */
+ } u;
};
+extern struct proc_dir_entry *proc_lustre_register_obd_device(struct obd_device *obd);
+extern void proc_lustre_release_obd_device(struct obd_device *obd);
+extern void proc_lustre_remove_obd_entry(const char* name, struct obd_device *obd);
+
+/*
+ * ======== OBD Operations Declarations ===========
+ */
+
+#define OBD_BRW_READ (READ)
+#define OBD_BRW_WRITE (WRITE)
+#define OBD_BRW_RWMASK (READ | WRITE)
+#define OBD_BRW_CREATE (0x00000010UL)
+
struct obd_ops {
- int (*o_attach)(struct obd_device *, int len, void *);
- int (*o_detach)(struct obd_device *);
- int (*o_format)(struct obd_device *, int len, void *);
- int (*o_partition)(struct obd_device *, int len, void *);
- int (*o_connect)(struct obd_conn *conn);
- int (*o_disconnect)(struct obd_conn *);
- int (*o_setup) (struct obd_device *dev, int len, void *data);
- int (*o_cleanup)(struct obd_device *dev);
- int (*o_setattr)(struct obd_conn *, obdattr *oa);
- int (*o_getattr)(struct obd_conn *, obdattr *oa);
- int (*o_statfs)(struct obd_conn *, struct statfs *statfs);
- int (*o_create)(struct obd_conn *, int prealloc_ino, int *er);
- int (*o_destroy)(struct obd_conn *, obdattr *oa);
- int (*o_read)(struct obd_conn *, obdattr *ino, char *buf, unsigned long *count, loff_t offset);
- int (*o_read2)(struct obd_conn *, obdattr *oa, char *buf, unsigned long *count, loff_t offset);
- int (*o_write)(struct obd_conn *, obdattr *oa, char *buf, unsigned long *count, loff_t offset);
- int (*o_brw)(int rw, struct obd_conn * conn, obdattr *obj, struct page *page, int create);
- int (*o_preallocate)(struct obd_conn *, unsigned long *req, long inodes[32]);
- int (*o_get_info)(struct obd_conn *, int keylen, void *key, int *vallen, void **val);
- int (*o_set_info)(struct obd_conn *, int keylen, void *key, int vallen, void *val);
- int (*o_migrate)(struct obd_conn *, obdattr *src, obdattr *dst);
- int (*o_copy)(struct obd_conn *dev, obdattr *source, obdattr *target);
- int (*o_iocontrol)(int cmd, struct obd_conn *, int len, void *karg, void *uarg);
- int (*o_iterate)(struct obd_conn *, objid, int (*)(objid, void *), void *);
+ int (*o_iocontrol)(int cmd, struct obd_conn *, int len, void *karg,
+ void *uarg);
+ int (*o_get_info)(struct obd_conn *, obd_count keylen, void *key,
+ obd_count *vallen, void **val);
+ int (*o_set_info)(struct obd_conn *, obd_count keylen, void *key,
+ obd_count vallen, void *val);
+ int (*o_attach)(struct obd_device *dev, struct obd_ioctl_data *data);
+ int (*o_detach)(struct obd_device *dev);
+ int (*o_setup) (struct obd_device *dev, struct obd_ioctl_data *data);
+ int (*o_cleanup)(struct obd_device *dev);
+ int (*o_connect)(struct obd_conn *conn);
+ int (*o_disconnect)(struct obd_conn *conn);
+ int (*o_statfs)(struct obd_conn *conn, struct statfs *statfs);
+ int (*o_preallocate)(struct obd_conn *, obd_count *req, obd_id *ids);
+ int (*o_create)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_destroy)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_setattr)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_getattr)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_read)(struct obd_conn *conn, struct obdo *oa, char *buf,
+ obd_size *count, obd_off offset);
+ int (*o_write)(struct obd_conn *conn, struct obdo *oa, char *buf,
+ obd_size *count, obd_off offset);
+ int (*o_brw)(int rw, struct obd_conn *conn, obd_count num_oa,
+ struct obdo **oa, obd_count *oa_bufs, struct page **buf,
+ obd_size *count, obd_off *offset, obd_flag *flags);
+ int (*o_punch)(struct obd_conn *conn, struct obdo *tgt, obd_size count,
+ obd_off offset);
+ int (*o_sync)(struct obd_conn *conn, struct obdo *tgt, obd_size count,
+ obd_off offset);
+ int (*o_migrate)(struct obd_conn *conn, struct obdo *dst,
+ struct obdo *src, obd_size count, obd_off offset);
+ int (*o_copy)(struct obd_conn *dstconn, struct obdo *dst,
+ struct obd_conn *srconn, struct obdo *src,
+ obd_size count, obd_off offset);
+ int (*o_iterate)(struct obd_conn *conn, int (*)(obd_id, obd_gr, void *),
+ obd_id *startid, obd_gr group, void *data);
+};
+
+#define OBT(dev) dev->obd_type->typ_ops
+#define OBP(dev,op) dev->obd_type->typ_ops->o_ ## op
+#endif
+
+/* This value is not arbitrarily chosen. KIO_STATIC_PAGES from linux/iobuf.h */
+#define MAX_IOVEC (KIO_STATIC_PAGES - 1)
+
+
+/*
+ * ======== OBD Metadata Support ===========
+ */
+
+extern int obd_init_obdo_cache(void);
+extern void obd_cleanup_obdo_cache(void);
+
+
+static inline int obdo_has_inline(struct obdo *obdo)
+{
+ return (obdo->o_valid & OBD_MD_FLINLINE &&
+ obdo->o_obdflags & OBD_FL_INLINEDATA);
};
-#define OBP(dev,op) dev->obd_type->typ_ops->o_ ## op
+static inline int obdo_has_obdmd(struct obdo *obdo)
+{
+ return (obdo->o_valid & OBD_MD_FLOBDMD &&
+ obdo->o_obdflags & OBD_FL_OBDMDEXISTS);
+};
+
+#ifdef __KERNEL__
+/* support routines */
+extern kmem_cache_t *obdo_cachep;
+
+static __inline__ struct obdo *obdo_alloc(void)
+{
+ struct obdo *oa = NULL;
+
+ oa = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL);
+ memset(oa, 0, sizeof (*oa));
+
+ return oa;
+}
+
+static __inline__ void obdo_free(struct obdo *oa)
+{
+ if ( !oa )
+ return;
+ kmem_cache_free(obdo_cachep, oa);
+}
+
+
+
+static __inline__ struct obdo *obdo_fromid(struct obd_conn *conn, obd_id id,
+ obd_flag valid)
+{
+ struct obdo *oa;
+ int err;
+
+ ENTRY;
+ oa = obdo_alloc();
+ if ( !oa ) {
+ EXIT;
+ return ERR_PTR(-ENOMEM);
+ }
+
+ oa->o_id = id;
+ oa->o_valid = valid;
+ if ((err = OBP(conn->oc_dev, getattr)(conn, oa))) {
+ obdo_free(oa);
+ EXIT;
+ return ERR_PTR(err);
+ }
+ EXIT;
+ return oa;
+}
+
+static inline void obdo_from_iattr(struct obdo *oa, struct iattr *attr)
+{
+ unsigned int ia_valid = attr->ia_valid;
+
+ if (ia_valid & ATTR_ATIME) {
+ oa->o_atime = attr->ia_atime;
+ oa->o_valid |= OBD_MD_FLATIME;
+ }
+ if (ia_valid & ATTR_MTIME) {
+ oa->o_mtime = attr->ia_mtime;
+ oa->o_valid |= OBD_MD_FLMTIME;
+ }
+ if (ia_valid & ATTR_CTIME) {
+ oa->o_ctime = attr->ia_ctime;
+ oa->o_valid |= OBD_MD_FLCTIME;
+ }
+ if (ia_valid & ATTR_SIZE) {
+ oa->o_size = attr->ia_size;
+ oa->o_valid |= OBD_MD_FLSIZE;
+ }
+ if (ia_valid & ATTR_MODE) {
+ oa->o_mode = attr->ia_mode;
+ oa->o_valid |= OBD_MD_FLMODE;
+ if (!in_group_p(oa->o_gid) && !capable(CAP_FSETID))
+ oa->o_mode &= ~S_ISGID;
+ }
+ if (ia_valid & ATTR_UID)
+ {
+ oa->o_uid = attr->ia_uid;
+ oa->o_valid |= OBD_MD_FLUID;
+ }
+ if (ia_valid & ATTR_GID) {
+ oa->o_gid = attr->ia_gid;
+ oa->o_valid |= OBD_MD_FLGID;
+ }
+}
+
+
+static inline void iattr_from_obdo(struct iattr *attr, struct obdo *oa)
+{
+ unsigned int ia_valid = oa->o_valid;
+
+ if (ia_valid & OBD_MD_FLATIME) {
+ attr->ia_atime = oa->o_atime;
+ attr->ia_valid |= ATTR_ATIME;
+ }
+ if (ia_valid & OBD_MD_FLMTIME) {
+ attr->ia_mtime = oa->o_mtime;
+ attr->ia_valid |= ATTR_MTIME;
+ }
+ if (ia_valid & OBD_MD_FLCTIME) {
+ attr->ia_ctime = oa->o_ctime;
+ attr->ia_valid |= ATTR_CTIME;
+ }
+ if (ia_valid & OBD_MD_FLSIZE) {
+ attr->ia_size = oa->o_size;
+ attr->ia_valid |= ATTR_SIZE;
+ }
+ if (ia_valid & OBD_MD_FLMODE) {
+ attr->ia_mode = oa->o_mode;
+ attr->ia_valid |= ATTR_MODE;
+ if (!in_group_p(oa->o_gid) && !capable(CAP_FSETID))
+ attr->ia_mode &= ~S_ISGID;
+ }
+ if (ia_valid & OBD_MD_FLUID)
+ {
+ attr->ia_uid = oa->o_uid;
+ attr->ia_valid |= ATTR_UID;
+ }
+ if (ia_valid & OBD_MD_FLGID) {
+ attr->ia_gid = oa->o_gid;
+ attr->ia_valid |= ATTR_GID;
+ }
+}
+
+
+/* WARNING: the file systems must take care not to tinker with
+ attributes they don't manage (such as blocks). */
+
+static __inline__ void obdo_from_inode(struct obdo *dst, struct inode *src)
+{
+ if ( dst->o_valid & OBD_MD_FLID )
+ dst->o_id = src->i_ino;
+ if ( dst->o_valid & OBD_MD_FLATIME )
+ dst->o_atime = src->i_atime;
+ if ( dst->o_valid & OBD_MD_FLMTIME )
+ dst->o_mtime = src->i_mtime;
+ if ( dst->o_valid & OBD_MD_FLCTIME )
+ dst->o_ctime = src->i_ctime;
+ if ( dst->o_valid & OBD_MD_FLSIZE )
+ dst->o_size = src->i_size;
+ if ( dst->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
+ dst->o_blocks = src->i_blocks;
+ if ( dst->o_valid & OBD_MD_FLBLKSZ )
+ dst->o_blksize = src->i_blksize;
+ if ( dst->o_valid & OBD_MD_FLMODE )
+ dst->o_mode = src->i_mode;
+ if ( dst->o_valid & OBD_MD_FLUID )
+ dst->o_uid = src->i_uid;
+ if ( dst->o_valid & OBD_MD_FLGID )
+ dst->o_gid = src->i_gid;
+ if ( dst->o_valid & OBD_MD_FLFLAGS )
+ dst->o_flags = src->i_flags;
+ if ( dst->o_valid & OBD_MD_FLNLINK )
+ dst->o_nlink = src->i_nlink;
+ if ( dst->o_valid & OBD_MD_FLGENER )
+ dst->o_generation = src->i_generation;
+}
+static __inline__ void obdo_to_inode(struct inode *dst, struct obdo *src)
+{
+
+ if ( src->o_valid & OBD_MD_FLID )
+ dst->i_ino = src->o_id;
+ if ( src->o_valid & OBD_MD_FLATIME )
+ dst->i_atime = src->o_atime;
+ if ( src->o_valid & OBD_MD_FLMTIME )
+ dst->i_mtime = src->o_mtime;
+ if ( src->o_valid & OBD_MD_FLCTIME )
+ dst->i_ctime = src->o_ctime;
+ if ( src->o_valid & OBD_MD_FLSIZE )
+ dst->i_size = src->o_size;
+ if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
+ dst->i_blocks = src->o_blocks;
+ if ( src->o_valid & OBD_MD_FLBLKSZ )
+ dst->i_blksize = src->o_blksize;
+ if ( src->o_valid & OBD_MD_FLMODE )
+ dst->i_mode = src->o_mode;
+ if ( src->o_valid & OBD_MD_FLUID )
+ dst->i_uid = src->o_uid;
+ if ( src->o_valid & OBD_MD_FLGID )
+ dst->i_gid = src->o_gid;
+ if ( src->o_valid & OBD_MD_FLFLAGS )
+ dst->i_flags = src->o_flags;
+ if ( src->o_valid & OBD_MD_FLNLINK )
+ dst->i_nlink = src->o_nlink;
+ if ( src->o_valid & OBD_MD_FLGENER )
+ dst->i_generation = src->o_generation;
+}
+
+#endif
+
+static __inline__ void obdo_cpy_md(struct obdo *dst, struct obdo *src)
+{
+#ifdef __KERNEL__
+ CDEBUG(D_INODE, "src obdo %Ld valid 0x%x, dst obdo %Ld\n",
+ src->o_id, src->o_valid, dst->o_id);
+#endif
+ if ( src->o_valid & OBD_MD_FLATIME )
+ dst->o_atime = src->o_atime;
+ if ( src->o_valid & OBD_MD_FLMTIME )
+ dst->o_mtime = src->o_mtime;
+ if ( src->o_valid & OBD_MD_FLCTIME )
+ dst->o_ctime = src->o_ctime;
+ if ( src->o_valid & OBD_MD_FLSIZE )
+ dst->o_size = src->o_size;
+ if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
+ dst->o_blocks = src->o_blocks;
+ if ( src->o_valid & OBD_MD_FLBLKSZ )
+ dst->o_blksize = src->o_blksize;
+ if ( src->o_valid & OBD_MD_FLMODE )
+ dst->o_mode = src->o_mode;
+ if ( src->o_valid & OBD_MD_FLUID )
+ dst->o_uid = src->o_uid;
+ if ( src->o_valid & OBD_MD_FLGID )
+ dst->o_gid = src->o_gid;
+ if ( src->o_valid & OBD_MD_FLFLAGS )
+ dst->o_flags = src->o_flags;
+ /*
+ if ( src->o_valid & OBD_MD_FLOBDFLG )
+ dst->o_obdflags = src->o_obdflags;
+ */
+ if ( src->o_valid & OBD_MD_FLNLINK )
+ dst->o_nlink = src->o_nlink;
+ if ( src->o_valid & OBD_MD_FLGENER )
+ dst->o_generation = src->o_generation;
+ if ( src->o_valid & OBD_MD_FLINLINE &&
+ src->o_obdflags & OBD_FL_INLINEDATA) {
+ memcpy(dst->o_inline, src->o_inline, sizeof(src->o_inline));
+ dst->o_obdflags |= OBD_FL_INLINEDATA;
+ }
+ if ( src->o_valid & OBD_MD_FLOBDMD &&
+ src->o_obdflags & OBD_FL_OBDMDEXISTS) {
+ memcpy(dst->o_obdmd, src->o_obdmd, sizeof(src->o_obdmd));
+ dst->o_obdflags |= OBD_FL_OBDMDEXISTS;
+ }
+
+ dst->o_valid |= src->o_valid;
+}
+
+
+/* returns FALSE if comparison (by flags) is same, TRUE if changed */
+static __inline__ int obdo_cmp_md(struct obdo *dst, struct obdo *src,
+ obd_flag compare)
+{
+ int res = 0;
+
+ if ( compare & OBD_MD_FLATIME )
+ res = (res || (dst->o_atime != src->o_atime));
+ if ( compare & OBD_MD_FLMTIME )
+ res = (res || (dst->o_mtime != src->o_mtime));
+ if ( compare & OBD_MD_FLCTIME )
+ res = (res || (dst->o_ctime != src->o_ctime));
+ if ( compare & OBD_MD_FLSIZE )
+ res = (res || (dst->o_size != src->o_size));
+ if ( compare & OBD_MD_FLBLOCKS ) /* allocation of space */
+ res = (res || (dst->o_blocks != src->o_blocks));
+ if ( compare & OBD_MD_FLBLKSZ )
+ res = (res || (dst->o_blksize != src->o_blksize));
+ if ( compare & OBD_MD_FLMODE )
+ res = (res || (dst->o_mode != src->o_mode));
+ if ( compare & OBD_MD_FLUID )
+ res = (res || (dst->o_uid != src->o_uid));
+ if ( compare & OBD_MD_FLGID )
+ res = (res || (dst->o_gid != src->o_gid));
+ if ( compare & OBD_MD_FLFLAGS )
+ res = (res || (dst->o_flags != src->o_flags));
+ if ( compare & OBD_MD_FLNLINK )
+ res = (res || (dst->o_nlink != src->o_nlink));
+ if ( compare & OBD_MD_FLGENER )
+ res = (res || (dst->o_generation != src->o_generation));
+ /* XXX Don't know if thses should be included here - wasn't previously
+ if ( compare & OBD_MD_FLINLINE )
+ res = (res || memcmp(dst->o_inline, src->o_inline));
+ if ( compare & OBD_MD_FLOBDMD )
+ res = (res || memcmp(dst->o_obdmd, src->o_obdmd));
+ */
+ return res;
+}
+
+
+#ifdef __KERNEL__
int obd_register_type(struct obd_ops *ops, char *nm);
int obd_unregister_type(char *nm);
struct obd_client {
- struct list_head cli_chain;
- struct obd_device *cli_obd;
- unsigned int cli_id;
- unsigned long cli_prealloc_quota;
- struct list_head cli_prealloc_inodes;
+ struct list_head cli_chain;
+ struct obd_device *cli_obd;
+ unsigned int cli_id;
+ unsigned long cli_prealloc_quota;
+ struct list_head cli_prealloc_inodes;
};
struct obd_prealloc_inode {
- struct list_head obd_prealloc_chain;
- unsigned long inode;
+ struct list_head obd_prealloc_chain;
+ unsigned long inode;
};
/* generic operations shared by various OBD types */
-int gen_connect (struct obd_conn *conn);
-int gen_disconnect(struct obd_conn *conn);
-int gen_multi_setup(struct obd_device *obddev, int len, void *data);
+int gen_multi_setup(struct obd_device *obddev, uint32_t len, void *data);
int gen_multi_cleanup(struct obd_device *obddev);
-int gen_multi_attach(struct obd_device *obddev, int len, void *data);
-struct obd_client *gen_client(struct obd_conn *);
+int gen_multi_attach(struct obd_device *obddev, uint32_t len, void *data);
int gen_multi_detach(struct obd_device *obddev);
+int gen_connect (struct obd_conn *conn);
+int gen_disconnect(struct obd_conn *conn);
+struct obd_client *gen_client(const struct obd_conn *);
int gen_cleanup(struct obd_device *obddev);
-int gen_copy_data(struct obd_conn *, obdattr *source, obdattr *target);
-
+int gen_copy_data(struct obd_conn *dst_conn, struct obdo *dst,
+ struct obd_conn *src_conn, struct obdo *src,
+ obd_size count, obd_off offset);
+#endif
/*
- * ioctl commands
+ * ======== OBD IOCL Declarations ===========
*/
-struct oic_generic {
- int att_connid;
- int att_typelen;
- void *att_type;
- int att_datalen;
- void *att_data;
-};
-struct oic_prealloc_s {
- unsigned long cli_id;
- unsigned long alloc; /* user sets it to the number of inodes requesting
- * to be preallocated. kernel sets it to the actual number
- * of succesfully preallocated inodes */
- long inodes[32]; /* actual inode numbers */
-};
+#define OBD_IOCTL_VERSION 0x00010001
-struct oic_create_s {
- unsigned int conn_id;
- unsigned long prealloc;
+struct obd_ioctl_hdr {
+ uint32_t ioc_len;
+ uint32_t ioc_version;
};
-struct oic_attr_s {
- unsigned int conn_id;
- unsigned long ino;
- struct iattr iattr;
-};
+static inline int obd_ioctl_packlen(struct obd_ioctl_data *data)
+{
+ int len = sizeof(struct obd_ioctl_data);
+ len += size_round(data->ioc_inllen1);
+ len += size_round(data->ioc_inllen2);
+ return len;
+}
-struct ioc_mv_s {
- unsigned int conn_id;
- objid src;
- objid tgt;
-};
+static inline int obd_ioctl_is_invalid(struct obd_ioctl_data *data)
+{
+ if (data->ioc_len > (1<<30)) {
+ printk("OBD ioctl: ioc_len larger than 1<<30\n");
+ return 1;
+ }
+ if (data->ioc_inllen1 > (1<<30)) {
+ printk("OBD ioctl: ioc_inllen1 larger than 1<<30\n");
+ return 1;
+ }
+ if (data->ioc_inllen2 > (1<<30)) {
+ printk("OBD ioctl: ioc_inllen2 larger than 1<<30\n");
+ return 1;
+ }
+ if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
+ printk("OBD ioctl: inlbuf1 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
+ printk("OBD ioctl: inlbuf2 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_pbuf1 && !data->ioc_plen1) {
+ printk("OBD ioctl: pbuf1 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_pbuf2 && !data->ioc_plen2) {
+ printk("OBD ioctl: pbuf2 pointer but 0 length\n");
+ return 1;
+ }
+ if (obd_ioctl_packlen(data) != data->ioc_len ) {
+ printk("OBD ioctl: packlen exceeds ioc_len\n");
+ return 1;
+ }
+ if (data->ioc_inllen1 &&
+ data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
+ printk("OBD ioctl: inlbuf1 not 0 terminated\n");
+ return 1;
+ }
+ if (data->ioc_inllen2 &&
+ data->ioc_bulk[size_round(data->ioc_inllen1) + data->ioc_inllen2 - 1] != '\0') {
+ printk("OBD ioctl: inlbuf2 not 0 terminated\n");
+ return 1;
+ }
+ return 0;
+}
-struct oic_rw_s {
- unsigned int conn_id;
- unsigned long id;
- char * buf;
- unsigned long count;
- loff_t offset;
-};
+#ifndef __KERNEL__
+static inline int obd_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max)
+{
+ char *ptr;
+ struct obd_ioctl_data *overlay;
+ data->ioc_len = obd_ioctl_packlen(data);
+ data->ioc_version = OBD_IOCTL_VERSION;
+
+ if (*pbuf && obd_ioctl_packlen(data) > max)
+ return 1;
+ if (*pbuf == NULL) {
+ *pbuf = malloc(data->ioc_len);
+ }
+ if (!*pbuf)
+ return 1;
+ overlay = (struct obd_ioctl_data *)*pbuf;
+ memcpy(*pbuf, data, sizeof(*data));
+
+ ptr = overlay->ioc_bulk;
+ if (data->ioc_inlbuf1)
+ LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
+ if (data->ioc_inlbuf2)
+ LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
+ if (obd_ioctl_is_invalid(overlay))
+ return 1;
+
+ return 0;
+}
+#else
-struct oic_partition {
- int partition;
- unsigned int size;
-};
+
+/* buffer MUST be at least the size of obd_ioctl_hdr */
+static inline int obd_ioctl_getdata(char *buf, char *end, void *arg)
+{
+ struct obd_ioctl_hdr *hdr;
+ struct obd_ioctl_data *data;
+ int err;
+ ENTRY;
+
+ hdr = (struct obd_ioctl_hdr *)buf;
+ data = (struct obd_ioctl_data *)buf;
+
+ err = copy_from_user(buf, (void *)arg, sizeof(*hdr));
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ if (hdr->ioc_version != OBD_IOCTL_VERSION) {
+ printk("OBD: version mismatch kernel vs application\n");
+ return -EINVAL;
+ }
+
+ if (hdr->ioc_len + buf >= end) {
+ printk("OBD: user buffer exceeds kernel buffer\n");
+ return -EINVAL;
+ }
+
+
+ if (hdr->ioc_len < sizeof(struct obd_ioctl_data)) {
+ printk("OBD: user buffer too small for ioctl\n");
+ return -EINVAL;
+ }
+
+ err = copy_from_user(buf, (void *)arg, hdr->ioc_len);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ if (obd_ioctl_is_invalid(data)) {
+ printk("OBD: ioctl not correctly formatted\n");
+ return -EINVAL;
+ }
+
+ if (data->ioc_inllen1) {
+ data->ioc_inlbuf1 = &data->ioc_bulk[0];
+ }
+
+ if (data->ioc_inllen2) {
+ data->ioc_inlbuf2 = &data->ioc_bulk[0] + size_round(data->ioc_inllen1);
+ }
+
+ EXIT;
+ return 0;
+}
+#endif
#define OBD_IOC_CREATE _IOR ('f', 3, long)
#define OBD_IOC_CONNECT _IOR ('f', 13, long)
#define OBD_IOC_DISCONNECT _IOW ('f', 14, long)
#define OBD_IOC_STATFS _IOWR('f', 15, long)
-#define OBD_IOC_SYNC _IOR ('f', 16, long)
+#define OBD_IOC_SYNC _IOR ('f', 16, long)
#define OBD_IOC_READ2 _IOWR('f', 17, long)
#define OBD_IOC_FORMAT _IOWR('f', 18, long)
#define OBD_IOC_PARTITION _IOWR('f', 19, long)
#define OBD_IOC_DETACH _IOWR('f', 21, long)
#define OBD_IOC_COPY _IOWR('f', 22, long)
#define OBD_IOC_MIGR _IOWR('f', 23, long)
+#define OBD_IOC_PUNCH _IOWR('f', 24, long)
+#define OBD_IOC_DEVICE _IOWR('f', 25, long)
#define OBD_IOC_DEC_FS_USE_COUNT _IO ('f', 32 )
extern void obd_sysctl_init (void);
extern void obd_sysctl_clean (void);
-#define CHKCONN(conn) do { if (!gen_client(conn)) {\
- printk("%s %d invalid client %u\n", __FILE__, __LINE__, \
- conn->oc_id);\
- return -EINVAL; }} while (0)
-
-
-/* support routines */
-static __inline__ obdattr *obd_empty_oa(void)
-{
- obdattr *res = NULL;
- OBD_ALLOC(res, obdattr *, sizeof(*res));
- memset(res, 0, sizeof (*res));
- return res;
-}
-
-static __inline__ void obd_free_oa(obdattr *oa)
-{
- if ( !oa )
- return;
- OBD_FREE(oa,sizeof(*oa));
-}
-
-
-
-static __inline__ obdattr *obd_oa_fromid(struct obd_conn *conn, objid id)
-{
- obdattr *res = NULL;
-
- OBD_ALLOC(res, obdattr *, sizeof(*res));
- if ( !res ) {
- EXIT;
- return NULL;
- }
- memset(res, 0, sizeof(*res));
- res->i_ino = id;
- if (conn->oc_dev->obd_type->typ_ops->o_getattr(conn, res)) {
- OBD_FREE(res, sizeof(*res));
- EXIT;
- return NULL;
- }
- EXIT;
- return res;
-}
-
-#define OBD_MD_FLMODE (1UL<<1)
-#define OBD_MD_FLUID (1UL<<2)
-#define OBD_MD_FLGID (1UL<<3)
-#define OBD_MD_FLSIZE (1UL<<4)
-#define OBD_MD_FLATIME (1UL<<5)
-#define OBD_MD_FLMTIME (1UL<<6)
-#define OBD_MD_FLCTIME (1UL<<7)
-#define OBD_MD_FLFLAGS (1UL<<8)
-#define OBD_MD_FLBLOCKS (1UL<<9)
-#define OBD_MD_FLOBDMD (1UL<<10)
-
+#define CHKCONN(conn) do { if (!gen_client(conn)) {\
+ printk("%s %d invalid client %u\n", __FILE__, __LINE__, \
+ conn->oc_id);\
+ return -EINVAL; }} while (0)
-static __inline__ void obdo_cpy_md(obdattr *dst, obdattr *src, int mask)
-{
- CDEBUG(D_INODE, "flags %x\n", mask);
- if ( ! (mask & OBD_MD_FLMODE) )
- dst->i_mode = src->i_mode;
- if ( ! (mask & OBD_MD_FLUID) )
- dst->i_uid = src->i_uid;
- if ( ! (mask & OBD_MD_FLGID) )
- dst->i_gid = src->i_gid;
- if ( ! (mask & OBD_MD_FLSIZE) )
- dst->i_size = src->i_size;
- if ( ! (mask & OBD_MD_FLATIME) )
- dst->i_atime = src->i_atime;
- if ( ! (mask & OBD_MD_FLMTIME) )
- dst->i_mtime = src->i_mtime;
- if ( ! (mask & OBD_MD_FLCTIME) )
- dst->i_ctime = src->i_ctime;
- if ( ! (mask & OBD_MD_FLFLAGS) )
- dst->i_flags = src->i_flags;
- /* allocation of space */
- if ( ! (mask & OBD_MD_FLBLOCKS) )
- dst->i_blocks = src->i_blocks;
- if ( ! (mask & OBD_MD_FLOBDMD) && !src->i_blocks ) {
- CDEBUG(D_IOCTL, "copying inline data: ino %ld\n", dst->i_ino);
- memcpy(&dst->u.ext2_i.i_data, &src->u.ext2_i.i_data,
- sizeof(src->u.ext2_i.i_data));
- } else {
- CDEBUG(D_INODE, "XXXX cpy_obdmd: ino %ld iblocks not 0!\n", src->i_ino);
- }
-}
-static __inline__ int obdo_cmp_md(obdattr *dst, obdattr *src, int mask)
-{
- int res = 1;
- if ( ! (mask & OBD_MD_FLMODE) )
- res = (res && (dst->i_mode == src->i_mode));
- if ( ! (mask & OBD_MD_FLUID) )
- res = (res && (dst->i_uid == src->i_uid));
- if ( ! (mask & OBD_MD_FLGID) )
- res = (res && (dst->i_gid == src->i_gid));
- if ( ! (mask & OBD_MD_FLSIZE) )
- res = (res && (dst->i_size == src->i_size));
- if ( ! (mask & OBD_MD_FLATIME) )
- res = (res && (dst->i_atime == src->i_atime));
- if ( ! (mask & OBD_MD_FLMTIME) )
- res = (res && (dst->i_mtime == src->i_mtime));
- if ( ! (mask & OBD_MD_FLCTIME) )
- res = (res && (dst->i_ctime == src->i_ctime));
- if ( ! (mask & OBD_MD_FLFLAGS) )
- res = (res && (dst->i_flags == src->i_flags));
- /* allocation of space */
- if ( ! (mask & OBD_MD_FLBLOCKS) )
- res = (res && (dst->i_blocks == src->i_blocks));
- return res;
-}
-
-
-static __inline__ void obd_cpy_appmd(obdattr *dst, obdattr *src)
-{
- dst->i_mode = src->i_mode;
- dst->i_uid = src->i_uid;
- dst->i_gid = src->i_gid;
- dst->i_size = src->i_size;
- dst->i_atime = src->i_atime;
- dst->i_mtime = src->i_mtime;
- dst->i_ctime = src->i_ctime;
- dst->i_flags = src->i_flags;
- /* allocation of space */
- dst->i_blocks = src->i_blocks;
-}
#endif /* __LINUX_CLASS_OBD_H */