X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flinux%2Fobd_class.h;h=d7e847d0112cf1573230f50a6594d2e4ec0653bd;hb=1ef040b59bd9d7f127ca491b1f89f2477e6553b2;hp=e1c658c086d08693c4a44aaa529ff16a7b2fb230;hpb=6ec7020ec578a881fc619e3ed1751c0d58d19c83;p=fs%2Flustre-release.git diff --git a/lustre/include/linux/obd_class.h b/lustre/include/linux/obd_class.h index e1c658c..d7e847d 100644 --- a/lustre/include/linux/obd_class.h +++ b/lustre/include/linux/obd_class.h @@ -1,7 +1,7 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * - * Copyright (C) 2001, 2002 Cluster File Systems, Inc. + * Copyright (C) 2001-2003 Cluster File Systems, Inc. * * This file is part of Lustre, http://www.lustre.org. * @@ -24,87 +24,171 @@ #define __LINUX_CLASS_OBD_H #ifndef __KERNEL__ -# include -# define __KERNEL__ -# include -# undef __KERNEL__ -#else +#include +#include +#else #include #include #include #include #include +#include +#endif #include +#include +#include #include #include #include -#endif +#include +#include - -/* - * ======== OBD Device Declarations =========== - */ -#define MAX_OBD_DEVICES 128 +/* OBD Device Declarations */ +#define MAX_OBD_DEVICES 256 extern struct obd_device obd_dev[MAX_OBD_DEVICES]; -#define OBD_ATTACHED 0x1 -#define OBD_SET_UP 0x2 +/* OBD Operations Declarations */ +extern struct obd_device *class_conn2obd(struct lustre_handle *); +extern struct obd_device *class_exp2obd(struct obd_export *); -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); +/* genops.c */ +struct obd_export *class_conn2export(struct lustre_handle *); +int class_register_type(struct obd_ops *ops, struct md_ops *md_ops, + struct lprocfs_vars *, char *nm); +int class_unregister_type(char *nm); -/* - * ======== OBD Operations Declarations =========== - */ +struct obd_device *class_newdev(int *dev); -#ifdef __KERNEL__ -extern struct obd_export *class_conn2export(struct lustre_handle *conn); -extern struct obd_device *class_conn2obd(struct lustre_handle *conn); - -struct obd_export { - __u64 export_cookie; - struct lustre_handle export_import; /* client handle */ - struct list_head export_chain; - struct obd_device *export_obd; - struct ptlrpc_connection *export_connection; - void *export_data; /* device specific data */ - int export_desclen; - char *export_desc; +int class_name2dev(char *name); +struct obd_device *class_name2obd(char *name); +int class_uuid2dev(struct obd_uuid *uuid); +struct obd_device *class_uuid2obd(struct obd_uuid *uuid); +struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid, + char * typ_name, + struct obd_uuid *grp_uuid); +struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid, + int *next); + +int oig_init(struct obd_io_group **oig); +void oig_add_one(struct obd_io_group *oig, + struct oig_callback_context *occ); +void oig_complete_one(struct obd_io_group *oig, + struct oig_callback_context *occ, int rc); +void oig_release(struct obd_io_group *oig); +int oig_wait(struct obd_io_group *oig); + +/* obd_config.c */ +int class_process_config(struct lustre_cfg *lcfg); + +/* Passed as data param to class_config_parse_handler() */ +struct config_llog_instance { + char * cfg_instance; + struct obd_uuid cfg_uuid; + ptl_nid_t cfg_local_nid; }; -struct obd_import { - __u64 import_cookie; - struct lustre_handle import_export; /* client handle */ - struct list_head import_chain; - struct obd_device *import_obd; - unsigned int import_id; - void *import_data; /* device specific data */ +int class_config_process_llog(struct llog_ctxt *ctxt, char *name, + struct config_llog_instance *cfg); +int class_config_dump_llog(struct llog_ctxt *ctxt, char *name, + struct config_llog_instance *cfg); + +struct lustre_profile { + struct list_head lp_list; + char * lp_profile; + char * lp_osc; + char * lp_mdc; }; -static inline int obd_check_conn(struct lustre_handle *conn) +struct lustre_profile *class_get_profile(char * prof); +void class_del_profile(char *prof); + +#define class_export_rpc_get(exp) \ +({ \ + atomic_inc(&(exp)->exp_rpc_count); \ + CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \ + (exp), atomic_read(&(exp)->exp_rpc_count)); \ + class_export_get(exp); \ +}) + +#define class_export_rpc_put(exp) \ +({ \ + atomic_dec(&(exp)->exp_rpc_count); \ + CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \ + (exp), atomic_read(&(exp)->exp_rpc_count)); \ + class_export_put(exp); \ +}) + +#define class_export_get(exp) \ +({ \ + struct obd_export *exp_ = exp; \ + atomic_inc(&exp_->exp_refcount); \ + CDEBUG(D_INFO, "GETting export %p : new refcount %d\n", exp_, \ + atomic_read(&exp_->exp_refcount)); \ + exp_; \ +}) + +#define class_export_put(exp) \ +do { \ + LASSERT((exp) != NULL); \ + CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", (exp), \ + atomic_read(&(exp)->exp_refcount) - 1); \ + LASSERT(atomic_read(&(exp)->exp_refcount) > 0); \ + LASSERT(atomic_read(&(exp)->exp_refcount) < 0x5a5a5a); \ + __class_export_put(exp); \ +} while (0) +void __class_export_put(struct obd_export *); +struct obd_export *class_new_export(struct obd_device *obddev); +void class_unlink_export(struct obd_export *exp); + +struct obd_import *class_import_get(struct obd_import *); +void class_import_put(struct obd_import *); +struct obd_import *class_new_import(void); +void class_destroy_import(struct obd_import *exp); + +struct obd_type *class_get_type(char *name); +void class_put_type(struct obd_type *type); +int class_connect(struct lustre_handle *conn, struct obd_device *obd, + struct obd_uuid *cluuid); +int class_disconnect(struct obd_export *exp, int failover); +void class_disconnect_exports(struct obd_device *obddev, int failover); +/* generic operations shared by various OBD types */ +int class_multi_setup(struct obd_device *obddev, uint32_t len, void *data); +int class_multi_cleanup(struct obd_device *obddev); + +/* obdo.c */ +#ifdef __KERNEL__ +void obdo_from_iattr(struct obdo *oa, struct iattr *attr, unsigned ia_valid); +void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid); +void obdo_from_inode(struct obdo *dst, struct inode *src, obd_flag valid); +void obdo_refresh_inode(struct inode *dst, struct obdo *src, obd_flag valid); +void obdo_to_inode(struct inode *dst, struct obdo *src, obd_flag valid); +#endif +void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid); +int obdo_cmp_md(struct obdo *dst, struct obdo *src, obd_flag compare); +void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj); + +static inline int obd_check_conn(struct lustre_handle *conn) { struct obd_device *obd; if (!conn) { CERROR("NULL conn\n"); RETURN(-ENOTCONN); } + obd = class_conn2obd(conn); if (!obd) { CERROR("NULL obd\n"); RETURN(-ENODEV); } - if (!obd->obd_flags & OBD_ATTACHED ) { + if (!obd->obd_attached) { CERROR("obd %d not attached\n", obd->obd_minor); RETURN(-ENODEV); } - if (!obd->obd_flags & OBD_SET_UP) { - CERROR("obd %d not setup\n", obd->obd_minor); + if (!obd->obd_set_up) { + CERROR("obd %d not setup\n", obd->obd_minor); RETURN(-ENODEV); } @@ -123,580 +207,1305 @@ static inline int obd_check_conn(struct lustre_handle *conn) #define OBT(dev) (dev)->obd_type -#define OBP(dev,op) (dev)->obd_type->typ_ops->o_ ## op +#define OBP(dev, op) (dev)->obd_type->typ_ops->o_ ## op +#define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op +#define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op + +/* Ensure obd_setup: used for disconnect which might be called while + an obd is stopping. */ +#define OBD_CHECK_SETUP(conn, exp) \ +do { \ + if (!(conn)) { \ + CERROR("NULL connection\n"); \ + RETURN(-EINVAL); \ + } \ + \ + exp = class_conn2export(conn); \ + if (!(exp)) { \ + CERROR("No export for conn "LPX64"\n", (conn)->cookie); \ + RETURN(-EINVAL); \ + } \ + \ + if (!(exp)->exp_obd->obd_set_up) { \ + CERROR("Device %d not setup\n", \ + (exp)->exp_obd->obd_minor); \ + class_export_put(exp); \ + RETURN(-EINVAL); \ + } \ +} while (0) -#define OBD_CHECK_SETUP(conn, export) \ +/* Ensure obd_setup and !obd_stopping. */ +#define OBD_CHECK_ACTIVE(conn, exp) \ +do { \ + if (!(conn)) { \ + CERROR("NULL connection\n"); \ + RETURN(-EINVAL); \ + } \ + \ + exp = class_conn2export(conn); \ + if (!(exp)) { \ + CERROR("No export for conn "LPX64"\n", (conn)->cookie); \ + RETURN(-EINVAL); \ + } \ + \ + if (!(exp)->exp_obd->obd_set_up || (exp)->exp_obd->obd_stopping) { \ + CERROR("Device %d not setup\n", \ + (exp)->exp_obd->obd_minor); \ + class_export_put(exp); \ + RETURN(-EINVAL); \ + } \ +} while (0) + +/* Ensure obd_setup: used for cleanup which must be called + while obd is stopping */ +#define OBD_CHECK_DEV_STOPPING(obd) \ do { \ - if (!(conn)) { \ - CERROR("NULL connection\n"); \ - RETURN(-EINVAL); \ + if (!(obd)) { \ + CERROR("NULL device\n"); \ + RETURN(-ENODEV); \ } \ \ - export = class_conn2export(conn);\ - if (!(export)) { \ - CERROR("No export\n"); \ - RETURN(-EINVAL); \ + if (!(obd)->obd_set_up) { \ + CERROR("Device %d not setup\n", \ + (obd)->obd_minor); \ + RETURN(-ENODEV); \ } \ \ - if ( !((export)->export_obd->obd_flags & OBD_SET_UP) ) { \ - CERROR("Device %d not setup\n", \ - (export)->export_obd->obd_minor); \ - RETURN(-EINVAL); \ + if (!(obd)->obd_stopping) { \ + CERROR("Device %d not stopping\n", \ + (obd)->obd_minor); \ + RETURN(-ENODEV); \ } \ } while (0) -#define OBD_CHECK_DEVSETUP(obd) \ +/* ensure obd_setup and !obd_stopping */ +#define OBD_CHECK_DEV_ACTIVE(obd) \ do { \ - if (!(obd)) { \ + if (!(obd)) { \ CERROR("NULL device\n"); \ - RETURN(-EINVAL); \ + RETURN(-ENODEV); \ } \ \ - if ( !((obd)->obd_flags & OBD_SET_UP) ) { \ + if (!(obd)->obd_set_up || (obd)->obd_stopping) { \ CERROR("Device %d not setup\n", \ (obd)->obd_minor); \ - RETURN(-EINVAL); \ + RETURN(-ENODEV); \ + } \ +} while (0) + + +#ifdef LPROCFS +#define OBD_COUNTER_OFFSET(op) \ + ((offsetof(struct obd_ops, o_ ## op) - \ + offsetof(struct obd_ops, o_iocontrol)) \ + / sizeof(((struct obd_ops *)(0))->o_iocontrol)) + +#define OBD_COUNTER_INCREMENT(obd, op) \ + if ((obd)->obd_stats != NULL) { \ + unsigned int coffset; \ + coffset = (unsigned int)(obd)->obd_cntr_base + \ + OBD_COUNTER_OFFSET(op); \ + LASSERT(coffset < obd->obd_stats->ls_num); \ + lprocfs_counter_incr(obd->obd_stats, coffset); \ + } +/* FIXME: real accounting here */ +#define MD_COUNTER_INCREMENT(obd, op) +#else +#define OBD_COUNTER_OFFSET(op) +#define OBD_COUNTER_INCREMENT(obd, op) +#define MD_COUNTER_INCREMENT(obd, op) +#endif + +#define OBD_CHECK_MD_OP(obd, op, err) \ +do { \ + if (!OBT(obd) || !MDP((obd), op)) {\ + if (err) \ + CERROR("obd_md" #op ": dev %d no operation\n", \ + obd->obd_minor); \ + RETURN(err); \ + } \ +} while (0) + +#define EXP_CHECK_MD_OP(exp, op) \ +do { \ + if ((exp) == NULL) { \ + CERROR("obd_" #op ": NULL export\n"); \ + RETURN(-ENODEV); \ + } \ + if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \ + CERROR("obd_" #op ": cleaned up obd\n"); \ + RETURN(-EOPNOTSUPP); \ + } \ + if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \ + CERROR("obd_" #op ": dev %d no operation\n", \ + (exp)->exp_obd->obd_minor); \ + RETURN(-EOPNOTSUPP); \ } \ } while (0) -#define OBD_CHECK_OP(obd,op) \ +#define OBD_CHECK_OP(obd, op, err) \ do { \ - if (!OBP((obd),op)) { \ + if (!OBT(obd) || !OBP((obd), op)) {\ + if (err) \ + CERROR("obd_" #op ": dev %d no operation\n", \ + obd->obd_minor); \ + RETURN(err); \ + } \ +} while (0) + +#define EXP_CHECK_OP(exp, op) \ +do { \ + if ((exp) == NULL) { \ + CERROR("obd_" #op ": NULL export\n"); \ + RETURN(-ENODEV); \ + } \ + if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \ + CERROR("obd_" #op ": cleaned up obd\n"); \ + RETURN(-EOPNOTSUPP); \ + } \ + if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \ CERROR("obd_" #op ": dev %d no operation\n", \ - obd->obd_minor); \ + (exp)->exp_obd->obd_minor); \ RETURN(-EOPNOTSUPP); \ } \ } while (0) -static inline int obd_get_info(struct lustre_handle *conn, obd_count keylen, - void *key, obd_count *vallen, void **val) +#define CTXT_CHECK_OP(ctxt, op, err) \ +do { \ + if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \ + if (err) \ + CERROR("lop_" #op ": dev %d no operation\n", \ + ctxt->loc_obd->obd_minor); \ + RETURN(err); \ + } \ +} while (0) + +static inline int obd_get_info(struct obd_export *exp, __u32 keylen, + void *key, __u32 *vallen, void *val) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,get_info); + ENTRY; - rc = OBP(export->export_obd, get_info)(conn, keylen, key, vallen, val); + EXP_CHECK_OP(exp, get_info); + OBD_COUNTER_INCREMENT(exp->exp_obd, get_info); + + rc = OBP(exp->exp_obd, get_info)(exp, keylen, key, vallen, val); RETURN(rc); } -static inline int obd_set_info(struct lustre_handle *conn, obd_count keylen, +static inline int obd_set_info(struct obd_export *exp, obd_count keylen, void *key, obd_count vallen, void *val) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,set_info); + ENTRY; + + EXP_CHECK_OP(exp, set_info); + OBD_COUNTER_INCREMENT(exp->exp_obd, set_info); - rc = OBP(export->export_obd, set_info)(conn, keylen, key, vallen, val); + rc = OBP(exp->exp_obd, set_info)(exp, keylen, key, vallen, val); RETURN(rc); } static inline int obd_setup(struct obd_device *obd, int datalen, void *data) { int rc; + ENTRY; - OBD_CHECK_OP(obd,setup); + OBD_CHECK_OP(obd, setup, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(obd, setup); rc = OBP(obd, setup)(obd, datalen, data); RETURN(rc); } -static inline int obd_cleanup(struct obd_device *obd) +static inline int obd_precleanup(struct obd_device *obd, int flags) { int rc; + ENTRY; - OBD_CHECK_DEVSETUP(obd); - OBD_CHECK_OP(obd,cleanup); + OBD_CHECK_OP(obd, precleanup, 0); + OBD_COUNTER_INCREMENT(obd, precleanup); - rc = OBP(obd, cleanup)(obd); + rc = OBP(obd, precleanup)(obd, flags); RETURN(rc); } -static inline int obd_create(struct lustre_handle *conn, struct obdo *obdo) +static inline int obd_cleanup(struct obd_device *obd, int flags) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,create); + ENTRY; + + OBD_CHECK_DEV_STOPPING(obd); + OBD_CHECK_OP(obd, cleanup, 0); + OBD_COUNTER_INCREMENT(obd, cleanup); - rc = OBP(export->export_obd, create)(conn, obdo); + rc = OBP(obd, cleanup)(obd, flags); RETURN(rc); } -static inline int obd_destroy(struct lustre_handle *conn, struct obdo *obdo) +static inline int +obd_process_config(struct obd_device *obd, int datalen, void *data) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,destroy); + ENTRY; - rc = OBP(export->export_obd, destroy)(conn, obdo); + OBD_CHECK_OP(obd, process_config, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(obd, process_config); + + rc = OBP(obd, process_config)(obd, datalen, data); RETURN(rc); } -static inline int obd_getattr(struct lustre_handle *conn, struct obdo *obdo) +/* Pack an in-memory MD struct for storage on disk. + * Returns +ve size of packed MD (0 for free), or -ve error. + * + * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL). + * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed. + * If @*disk_tgt == NULL, it will be allocated + */ +static inline int obd_packmd(struct obd_export *exp, + struct lov_mds_md **disk_tgt, + struct lov_stripe_md *mem_src) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,getattr); + ENTRY; - rc = OBP(export->export_obd, getattr)(conn, obdo); + EXP_CHECK_OP(exp, packmd); + OBD_COUNTER_INCREMENT(exp->exp_obd, packmd); + + rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src); RETURN(rc); } -static inline int obd_close(struct lustre_handle *conn, struct obdo *obdo) +static inline int obd_size_diskmd(struct obd_export *exp, + struct lov_stripe_md *mem_src) +{ + return obd_packmd(exp, NULL, mem_src); +} + +/* helper functions */ +static inline int obd_alloc_diskmd(struct obd_export *exp, + struct lov_mds_md **disk_tgt) +{ + LASSERT(disk_tgt); + LASSERT(*disk_tgt == NULL); + return obd_packmd(exp, disk_tgt, NULL); +} + +static inline int obd_free_diskmd(struct obd_export *exp, + struct lov_mds_md **disk_tgt) +{ + LASSERT(disk_tgt); + LASSERT(*disk_tgt); + return obd_packmd(exp, disk_tgt, NULL); +} + +/* Unpack an MD struct from disk to in-memory format. + * Returns +ve size of unpacked MD (0 for free), or -ve error. + * + * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL). + * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed. + * If @*mem_tgt == NULL, it will be allocated + */ +static inline int obd_unpackmd(struct obd_export *exp, + struct lov_stripe_md **mem_tgt, + struct lov_mds_md *disk_src, + int disk_len) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,close); + ENTRY; + + EXP_CHECK_OP(exp, unpackmd); + OBD_COUNTER_INCREMENT(exp->exp_obd, unpackmd); - rc = OBP(export->export_obd, close)(conn, obdo); + rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len); RETURN(rc); } -static inline int obd_open(struct lustre_handle *conn, struct obdo *obdo) + +/* helper functions */ +static inline int obd_alloc_memmd(struct obd_export *exp, + struct lov_stripe_md **mem_tgt) +{ + LASSERT(mem_tgt); + LASSERT(*mem_tgt == NULL); + return obd_unpackmd(exp, mem_tgt, NULL, 0); +} + +static inline int obd_free_memmd(struct obd_export *exp, + struct lov_stripe_md **mem_tgt) +{ + LASSERT(mem_tgt); + LASSERT(*mem_tgt); + return obd_unpackmd(exp, mem_tgt, NULL, 0); +} + +static inline int obd_revalidate_md(struct obd_export *exp, struct obdo *obdo, + struct lov_stripe_md *ea, + struct obd_trans_info *oti) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,open); + ENTRY; - rc = OBP(export->export_obd, open) (conn, obdo); + EXP_CHECK_OP(exp, revalidate_md); + OBD_COUNTER_INCREMENT(exp->exp_obd, revalidate_md); + + rc = OBP(exp->exp_obd, revalidate_md)(exp, obdo, ea, oti); RETURN(rc); } -static inline int obd_setattr(struct lustre_handle *conn, struct obdo *obdo) +static inline int obd_create(struct obd_export *exp, struct obdo *obdo, + struct lov_stripe_md **ea, + struct obd_trans_info *oti) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,setattr); + ENTRY; + + EXP_CHECK_OP(exp, create); + OBD_COUNTER_INCREMENT(exp->exp_obd, create); - rc = OBP(export->export_obd, setattr)(conn, obdo); + rc = OBP(exp->exp_obd, create)(exp, obdo, ea, oti); RETURN(rc); } -static inline int obd_connect(struct lustre_handle *conn, struct obd_device *obd) +static inline int obd_destroy(struct obd_export *exp, struct obdo *obdo, + struct lov_stripe_md *ea, + struct obd_trans_info *oti) { int rc; - OBD_CHECK_DEVSETUP(obd); - OBD_CHECK_OP(obd,connect); + ENTRY; + + EXP_CHECK_OP(exp, destroy); + OBD_COUNTER_INCREMENT(exp->exp_obd, destroy); - rc = OBP(obd, connect)(conn, obd); + rc = OBP(exp->exp_obd, destroy)(exp, obdo, ea, oti); RETURN(rc); } -static inline int obd_disconnect(struct lustre_handle *conn) +static inline int obd_getattr(struct obd_export *exp, struct obdo *obdo, + struct lov_stripe_md *ea) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,disconnect); + ENTRY; - rc = OBP(export->export_obd, disconnect)(conn); + EXP_CHECK_OP(exp, getattr); + OBD_COUNTER_INCREMENT(exp->exp_obd, getattr); + + rc = OBP(exp->exp_obd, getattr)(exp, obdo, ea); RETURN(rc); } -static inline int obd_statfs(struct lustre_handle *conn, struct statfs *buf) +static inline int obd_getattr_async(struct obd_export *exp, + struct obdo *obdo, struct lov_stripe_md *ea, + struct ptlrpc_request_set *set) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,statfs); + ENTRY; + + EXP_CHECK_OP(exp, getattr); + OBD_COUNTER_INCREMENT(exp->exp_obd, getattr); - rc = OBP(export->export_obd, statfs)(conn, buf); + rc = OBP(exp->exp_obd, getattr_async)(exp, obdo, ea, set); RETURN(rc); } -static inline int obd_punch(struct lustre_handle *conn, struct obdo *tgt, - obd_size count, obd_off offset) +static inline int obd_setattr(struct obd_export *exp, struct obdo *obdo, + struct lov_stripe_md *ea, + struct obd_trans_info *oti) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,punch); + ENTRY; + + EXP_CHECK_OP(exp, setattr); + OBD_COUNTER_INCREMENT(exp->exp_obd, setattr); - rc = OBP(export->export_obd, punch)(conn, tgt, count, offset); + rc = OBP(exp->exp_obd, setattr)(exp, obdo, ea, oti); RETURN(rc); } -static inline int obd_brw(int cmd, struct lustre_handle *conn, obd_count num_oa, - struct obdo **oa, obd_count *oa_bufs, - struct page **buf, obd_size *count, obd_off *offset, - obd_flag *flags, void *callback) +static inline int obd_connect(struct lustre_handle *conn, + struct obd_device *obd, struct obd_uuid *cluuid) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,brw); + ENTRY; + + OBD_CHECK_DEV_ACTIVE(obd); + OBD_CHECK_OP(obd, connect, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(obd, connect); + + rc = OBP(obd, connect)(conn, obd, cluuid); + RETURN(rc); +} + +static inline int obd_disconnect(struct obd_export *exp, int flags) +{ + int rc; + ENTRY; + + EXP_CHECK_OP(exp, disconnect); + OBD_COUNTER_INCREMENT(exp->exp_obd, disconnect); + + rc = OBP(exp->exp_obd, disconnect)(exp, flags); + RETURN(rc); +} + +static inline int obd_init_export(struct obd_export *exp) +{ + int rc = 0; + + ENTRY; + if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) && + OBP((exp)->exp_obd, init_export)) + rc = OBP(exp->exp_obd, init_export)(exp); + RETURN(rc); +} + +static inline int obd_destroy_export(struct obd_export *exp) +{ + ENTRY; + if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) && + OBP((exp)->exp_obd, destroy_export)) + OBP(exp->exp_obd, destroy_export)(exp); + RETURN(0); +} + +static inline struct dentry * +obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr) +{ + LASSERT(exp->exp_obd); + + return lvfs_fid2dentry(&exp->exp_obd->obd_lvfs_ctxt, id_ino, gen, gr, + exp->exp_obd); +} + +#ifndef time_before +#define time_before(t1, t2) ((long)t2 - (long)t1 > 0) +#endif + +/* @max_age is the oldest time in jiffies that we accept using a cached data. + * If the cache is older than @max_age we will get a new value from the + * target. Use a value of "jiffies + HZ" to guarantee freshness. */ +static inline int obd_statfs(struct obd_device *obd, struct obd_statfs *osfs, + unsigned long max_age) +{ + int rc = 0; + ENTRY; + + if (obd == NULL) + RETURN(-EINVAL); + + OBD_CHECK_OP(obd, statfs, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(obd, statfs); + + CDEBUG(D_SUPER, "osfs %lu, max_age %lu\n", obd->obd_osfs_age, max_age); + if (time_before(obd->obd_osfs_age, max_age)) { + rc = OBP(obd, statfs)(obd, osfs, max_age); + if (rc == 0) { + spin_lock(&obd->obd_osfs_lock); + memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs)); + obd->obd_osfs_age = jiffies; + spin_unlock(&obd->obd_osfs_lock); + } + } else { + CDEBUG(D_SUPER, "using cached obd_statfs data\n"); + spin_lock(&obd->obd_osfs_lock); + memcpy(osfs, &obd->obd_osfs, sizeof(*osfs)); + spin_unlock(&obd->obd_osfs_lock); + } + RETURN(rc); +} + +static inline int obd_sync(struct obd_export *exp, struct obdo *oa, + struct lov_stripe_md *ea, obd_size start, + obd_size end) +{ + int rc; + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, sync, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, sync); + + rc = OBP(exp->exp_obd, sync)(exp, oa, ea, start, end); + RETURN(rc); +} + +static inline int obd_punch(struct obd_export *exp, struct obdo *oa, + struct lov_stripe_md *ea, obd_size start, + obd_size end, struct obd_trans_info *oti) +{ + int rc; + ENTRY; + + EXP_CHECK_OP(exp, punch); + OBD_COUNTER_INCREMENT(exp->exp_obd, punch); + + rc = OBP(exp->exp_obd, punch)(exp, oa, ea, start, end, oti); + RETURN(rc); +} + +static inline int obd_brw(int cmd, struct obd_export *exp, struct obdo *oa, + struct lov_stripe_md *ea, obd_count oa_bufs, + struct brw_page *pg, struct obd_trans_info *oti) +{ + int rc; + ENTRY; + + EXP_CHECK_OP(exp, brw); + OBD_COUNTER_INCREMENT(exp->exp_obd, brw); + + if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) { + CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, " + "or OBD_BRW_CHECK\n"); + LBUG(); + } + + rc = OBP(exp->exp_obd, brw)(cmd, exp, oa, ea, oa_bufs, pg, oti); + RETURN(rc); +} + +static inline int obd_brw_async(int cmd, struct obd_export *exp, + struct obdo *oa, struct lov_stripe_md *ea, + obd_count oa_bufs, struct brw_page *pg, + struct ptlrpc_request_set *set, + struct obd_trans_info *oti) +{ + int rc; + ENTRY; + + EXP_CHECK_OP(exp, brw_async); + OBD_COUNTER_INCREMENT(exp->exp_obd, brw_async); if (!(cmd & OBD_BRW_RWMASK)) { CERROR("obd_brw: cmd must be OBD_BRW_READ or OBD_BRW_WRITE\n"); LBUG(); } - rc = OBP(export->export_obd, brw)(cmd, conn, num_oa, oa, oa_bufs, buf, - count, offset, flags, callback); + rc = OBP(exp->exp_obd, brw_async)(cmd, exp, oa, ea, oa_bufs, pg, set, + oti); + RETURN(rc); +} + +static inline int obd_prep_async_page(struct obd_export *exp, + struct lov_stripe_md *lsm, + struct lov_oinfo *loi, + struct page *page, obd_off offset, + struct obd_async_page_ops *ops, + void *data, void **res) +{ + int ret; + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, prep_async_page, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, prep_async_page); + + ret = OBP(exp->exp_obd, prep_async_page)(exp, lsm, loi, page, offset, + ops, data, res); + RETURN(ret); +} + +static inline int obd_queue_async_io(struct obd_export *exp, + struct lov_stripe_md *lsm, + struct lov_oinfo *loi, void *cookie, + int cmd, obd_off off, int count, + obd_flag brw_flags, obd_flag async_flags) +{ + int rc; + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, queue_async_io, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, queue_async_io); + LASSERT(cmd & OBD_BRW_RWMASK); + + rc = OBP(exp->exp_obd, queue_async_io)(exp, lsm, loi, cookie, cmd, off, + count, brw_flags, async_flags); + RETURN(rc); +} + +static inline int obd_set_async_flags(struct obd_export *exp, + struct lov_stripe_md *lsm, + struct lov_oinfo *loi, void *cookie, + obd_flag async_flags) +{ + int rc; + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, set_async_flags, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, set_async_flags); + + rc = OBP(exp->exp_obd, set_async_flags)(exp, lsm, loi, cookie, + async_flags); + RETURN(rc); +} + +static inline int obd_queue_group_io(struct obd_export *exp, + struct lov_stripe_md *lsm, + struct lov_oinfo *loi, + struct obd_io_group *oig, + void *cookie, int cmd, obd_off off, + int count, obd_flag brw_flags, + obd_flag async_flags) +{ + int rc; + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, queue_group_io, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, queue_group_io); + LASSERT(cmd & OBD_BRW_RWMASK); + + rc = OBP(exp->exp_obd, queue_group_io)(exp, lsm, loi, oig, cookie, + cmd, off, count, brw_flags, + async_flags); RETURN(rc); } -static inline int obd_preprw(int cmd, struct lustre_handle *conn, +static inline int obd_trigger_group_io(struct obd_export *exp, + struct lov_stripe_md *lsm, + struct lov_oinfo *loi, + struct obd_io_group *oig) +{ + int rc; + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, trigger_group_io, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, trigger_group_io); + + rc = OBP(exp->exp_obd, trigger_group_io)(exp, lsm, loi, oig); + RETURN(rc); +} + +static inline int obd_teardown_async_page(struct obd_export *exp, + struct lov_stripe_md *lsm, + struct lov_oinfo *loi, void *cookie) +{ + int rc; + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, teardown_async_page, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, teardown_async_page); + + rc = OBP(exp->exp_obd, teardown_async_page)(exp, lsm, loi, cookie); + RETURN(rc); +} + +static inline int obd_preprw(int cmd, struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, int niocount, struct niobuf_remote *remote, - struct niobuf_local *local, void **desc_private) + struct niobuf_local *local, + struct obd_trans_info *oti) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,preprw); + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, preprw, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, preprw); - rc = OBP(export->export_obd, preprw)(cmd, conn, objcount, obj, niocount, - remote, local, desc_private); + rc = OBP(exp->exp_obd, preprw)(cmd, exp, oa, objcount, obj, niocount, + remote, local, oti); RETURN(rc); } -static inline int obd_commitrw(int cmd, struct lustre_handle *conn, +static inline int obd_commitrw(int cmd, struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, int niocount, struct niobuf_local *local, - void *desc_private) + struct obd_trans_info *oti, int rc) +{ + ENTRY; + + OBD_CHECK_OP(exp->exp_obd, commitrw, -EOPNOTSUPP); + OBD_COUNTER_INCREMENT(exp->exp_obd, commitrw); + + rc = OBP(exp->exp_obd, commitrw)(cmd, exp, oa, objcount, obj, niocount, + local, oti, rc); + RETURN(rc); +} + +static inline int obd_do_cow(struct obd_export *exp, struct obd_ioobj *obj, + int objcount,struct niobuf_remote *rnb) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,commitrw); + ENTRY; - rc = OBP(export->export_obd, commitrw)(cmd, conn, objcount, obj, niocount, - local, desc_private); + /* there are cases when write_extents is not implemented. */ + if (!OBP(exp->exp_obd, do_cow)) + RETURN(0); + + OBD_COUNTER_INCREMENT(exp->exp_obd, do_cow); + + rc = OBP(exp->exp_obd, do_cow)(exp, obj, objcount, rnb); + + RETURN(rc); +} + +static inline int obd_write_extents(struct obd_export *exp, + struct obd_ioobj *obj, + int objcount, int niocount, + struct niobuf_local *local, + int rc) +{ + ENTRY; + + /* there are cases when write_extents is not implemented. */ + if (!OBP(exp->exp_obd, write_extents)) + RETURN(0); + + OBD_COUNTER_INCREMENT(exp->exp_obd, write_extents); + + rc = OBP(exp->exp_obd, write_extents)(exp, obj, objcount, niocount, + local, rc); RETURN(rc); } -static inline int obd_iocontrol(int cmd, struct lustre_handle *conn, +static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp, int len, void *karg, void *uarg) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,iocontrol); + ENTRY; + + EXP_CHECK_OP(exp, iocontrol); + OBD_COUNTER_INCREMENT(exp->exp_obd, iocontrol); - rc = OBP(export->export_obd, iocontrol)(cmd, conn, len, karg, uarg); + rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg); RETURN(rc); } -static inline int obd_enqueue(struct lustre_handle *conn, - struct lustre_handle *parent_lock, __u64 *res_id, - __u32 type, void *cookie, int cookielen, - __u32 mode, int *flags, void *cb, void *data, - int datalen, struct lustre_handle *lockh) +static inline int obd_enqueue(struct obd_export *exp, struct lov_stripe_md *ea, + __u32 type, ldlm_policy_data_t *policy, + __u32 mode, int *flags, void *bl_cb, void *cp_cb, + void *gl_cb, void *data, __u32 lvb_len, + void *lvb_swabber, struct lustre_handle *lockh) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,enqueue); + ENTRY; - rc = OBP(export->export_obd, enqueue)(conn, parent_lock, res_id, type, - cookie, cookielen, mode, flags, cb, - data, datalen, lockh); + EXP_CHECK_OP(exp, enqueue); + OBD_COUNTER_INCREMENT(exp->exp_obd, enqueue); + + rc = OBP(exp->exp_obd, enqueue)(exp, ea, type, policy, mode, flags, + bl_cb, cp_cb, gl_cb, data, lvb_len, + lvb_swabber, lockh); RETURN(rc); } -static inline int obd_cancel(struct lustre_handle *conn, __u32 mode, - struct lustre_handle *lockh) +static inline int obd_match(struct obd_export *exp, struct lov_stripe_md *ea, + __u32 type, ldlm_policy_data_t *policy, __u32 mode, + int *flags, void *data, struct lustre_handle *lockh) { int rc; - struct obd_export *export; - OBD_CHECK_SETUP(conn, export); - OBD_CHECK_OP(export->export_obd,cancel); + ENTRY; + + EXP_CHECK_OP(exp, match); + OBD_COUNTER_INCREMENT(exp->exp_obd, match); - rc = OBP(export->export_obd, cancel)(conn, mode, lockh); + rc = OBP(exp->exp_obd, match)(exp, ea, type, policy, mode, flags, data, + lockh); RETURN(rc); } -#endif +static inline int obd_change_cbdata(struct obd_export *exp, + struct lov_stripe_md *lsm, + ldlm_iterator_t it, void *data) +{ + int rc; + ENTRY; -/* - * ======== OBD Metadata Support =========== - */ + EXP_CHECK_OP(exp, change_cbdata); + OBD_COUNTER_INCREMENT(exp->exp_obd, change_cbdata); -extern int obd_init_caches(void); -extern void obd_cleanup_caches(void); + rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data); + RETURN(rc); +} -static inline int obdo_has_inline(struct obdo *obdo) +static inline int obd_cancel(struct obd_export *exp, + struct lov_stripe_md *ea, __u32 mode, + struct lustre_handle *lockh) { - return (obdo->o_valid & OBD_MD_FLINLINE && - obdo->o_obdflags & OBD_FL_INLINEDATA); -}; + int rc; + ENTRY; -#ifdef __KERNEL__ -/* support routines */ -extern kmem_cache_t *obdo_cachep; -static inline struct obdo *obdo_alloc(void) + EXP_CHECK_OP(exp, cancel); + OBD_COUNTER_INCREMENT(exp->exp_obd, cancel); + + rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh); + RETURN(rc); +} + +static inline int obd_cancel_unused(struct obd_export *exp, + struct lov_stripe_md *ea, int flags, + void *opaque) { - struct obdo *oa = NULL; + int rc; + ENTRY; - oa = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL); - if (oa == NULL) - LBUG(); - memset(oa, 0, sizeof (*oa)); + EXP_CHECK_OP(exp, cancel_unused); + OBD_COUNTER_INCREMENT(exp->exp_obd, cancel_unused); - return oa; + rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque); + RETURN(rc); } -static inline void obdo_free(struct obdo *oa) + + +static inline int obd_san_preprw(int cmd, struct obd_export *exp, + struct obdo *oa, + int objcount, struct obd_ioobj *obj, + int niocount, struct niobuf_remote *remote) { - if (!oa) - return; - kmem_cache_free(obdo_cachep, oa); + int rc; + + EXP_CHECK_OP(exp, preprw); + OBD_COUNTER_INCREMENT(exp->exp_obd, preprw); + + rc = OBP(exp->exp_obd, san_preprw)(cmd, exp, oa, objcount, obj, + niocount, remote); + class_export_put(exp); + return(rc); } +static inline int obd_pin(struct obd_export *exp, obd_id ino, __u32 gen, + int type, struct obd_client_handle *handle, int flag) +{ + int rc; + + EXP_CHECK_OP(exp, pin); + OBD_COUNTER_INCREMENT(exp->exp_obd, pin); + + rc = OBP(exp->exp_obd, pin)(exp, ino, gen, type, handle, flag); + return(rc); +} -static inline void obdo_from_iattr(struct obdo *oa, struct iattr *attr) +static inline int obd_unpin(struct obd_export *exp, + struct obd_client_handle *handle, int flag) { - unsigned int ia_valid = attr->ia_valid; + int rc; - 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; + EXP_CHECK_OP(exp, unpin); + OBD_COUNTER_INCREMENT(exp->exp_obd, unpin); + + rc = OBP(exp->exp_obd, unpin)(exp, handle, flag); + return(rc); +} + + +static inline void obd_import_event(struct obd_device *obd, + struct obd_import *imp, + enum obd_import_event event) +{ + if (obd->obd_set_up && OBP(obd, import_event)) { + OBD_COUNTER_INCREMENT(obd, import_event); + OBP(obd, import_event)(obd, imp, event); } - if (ia_valid & ATTR_SIZE) { - oa->o_size = attr->ia_size; - oa->o_valid |= OBD_MD_FLSIZE; +} + +static inline int obd_llog_connect(struct obd_device *obd, + struct llogd_conn_body *body) +{ + ENTRY; + if (!obd->obd_set_up) { + CERROR("obd %s not set up\n", obd->obd_name); + return -EINVAL; } - 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 (!OBP(obd, llog_connect)) { + CERROR("obd %s has no llog_connect handler\n", obd->obd_name); + return -ENOSYS; } - if (ia_valid & ATTR_UID) - { - oa->o_uid = attr->ia_uid; - oa->o_valid |= OBD_MD_FLUID; + + return OBP(obd, llog_connect)(obd, body); +} + +static inline int obd_notify(struct obd_device *obd, + struct obd_device *watched, + int active) +{ + if (!obd->obd_set_up) { + CERROR("obd %s not set up\n", obd->obd_name); + return -EINVAL; } - if (ia_valid & ATTR_GID) { - oa->o_gid = attr->ia_gid; - oa->o_valid |= OBD_MD_FLGID; + + if (!OBP(obd, notify)) { + CERROR("obd %s has no notify handler\n", obd->obd_name); + return -ENOSYS; } + + OBD_COUNTER_INCREMENT(obd, notify); + return OBP(obd, notify)(obd, watched, active); } +static inline int obd_register_observer(struct obd_device *obd, + struct obd_device *observer) +{ + ENTRY; + if (obd->obd_observer && observer) + RETURN(-EALREADY); + obd->obd_observer = observer; + RETURN(0); +} -static inline void iattr_from_obdo(struct iattr *attr, struct obdo *oa) +static inline int obd_init_ea_size(struct obd_export *exp, int size, int size2) { - unsigned int ia_valid = oa->o_valid; + int rc; + ENTRY; + LASSERT(OBP(exp->exp_obd, init_ea_size) != NULL); + OBD_COUNTER_INCREMENT(exp->exp_obd, init_ea_size); + rc = OBP(exp->exp_obd, init_ea_size)(exp, size, size2); + RETURN(rc); +} - memset(attr, 0, sizeof(*attr)); - 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; - } +static inline int md_getstatus(struct obd_export *exp, struct ll_fid *fid) +{ + int rc; + + EXP_CHECK_MD_OP(exp, getstatus); + MD_COUNTER_INCREMENT(exp->exp_obd, getstatus); + rc = MDP(exp->exp_obd, getstatus)(exp, fid); + RETURN(rc); } +/* this function notifies MDC, that inode described by @fid gets removed from + * memory.*/ +static inline int md_delete_object(struct obd_export *exp, + struct ll_fid *fid) +{ + int rc; + ENTRY; + + /* as this method only notifies MDC that inode gets deleted, we can + * return zero if method is not implemented, this means, that OBD does + * not need such a notification. */ + if (MDP(exp->exp_obd, delete_object) == NULL) + RETURN(0); + + MD_COUNTER_INCREMENT(exp->exp_obd, delete_object); + rc = MDP(exp->exp_obd, delete_object)(exp, fid); + RETURN(rc); +} -/* 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) +static inline int md_getattr(struct obd_export *exp, struct ll_fid *fid, + unsigned long valid, unsigned int ea_size, + struct ptlrpc_request **request) { -#ifdef __KERNEL__ - CDEBUG(D_INODE, "src obdo %Ld valid 0x%x, dst obdo %Ld\n", - (unsigned long long)src->o_id, src->o_valid, - (unsigned long long)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; - } + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, getattr); + MD_COUNTER_INCREMENT(exp->exp_obd, getattr); + rc = MDP(exp->exp_obd, getattr)(exp, fid, valid, ea_size, request); + RETURN(rc); +} - 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; +static inline int md_change_cbdata(struct obd_export *exp, struct ll_fid *fid, + ldlm_iterator_t it, void *data) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, change_cbdata); + MD_COUNTER_INCREMENT(exp->exp_obd, change_cbdata); + rc = MDP(exp->exp_obd, change_cbdata)(exp, fid, it, data); + RETURN(rc); } +static inline int md_change_cbdata_name(struct obd_export *exp, + struct ll_fid *fid, char *name, + int namelen, struct ll_fid *fid2, + ldlm_iterator_t it, void *data) +{ + int rc; + + /* this seem to be needed only for lmv. */ + if (!MDP(exp->exp_obd, change_cbdata_name)) + return 0; + + ENTRY; + + MD_COUNTER_INCREMENT(exp->exp_obd, change_cbdata_name); + rc = MDP(exp->exp_obd, change_cbdata_name)(exp, fid, name, namelen, + fid2, it, data); + RETURN(rc); +} -#ifdef __KERNEL__ -int class_register_type(struct obd_ops *ops, char *nm); -int class_unregister_type(char *nm); -int class_name2dev(char *name); -int class_uuid2dev(char *name); -struct obd_device *class_uuid2obd(char *name); -int class_connect (struct lustre_handle *conn, struct obd_device *obd); -int class_disconnect(struct lustre_handle *conn); -struct obd_export *class_conn2export(struct lustre_handle *); +static inline int md_close(struct obd_export *exp, struct obdo *obdo, + struct obd_client_handle *och, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, close); + MD_COUNTER_INCREMENT(exp->exp_obd, close); + rc = MDP(exp->exp_obd, close)(exp, obdo, och, request); + RETURN(rc); +} -/* generic operations shared by various OBD types */ -int class_multi_setup(struct obd_device *obddev, uint32_t len, void *data); -int class_multi_cleanup(struct obd_device *obddev); +static inline int md_create(struct obd_export *exp, struct mdc_op_data *op_data, + const void *data, int datalen, int mode, + __u32 uid, __u32 gid, __u64 rdev, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, create); + MD_COUNTER_INCREMENT(exp->exp_obd, create); + rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode, + uid, gid, rdev, request); + RETURN(rc); +} + +static inline int md_done_writing(struct obd_export *exp, struct obdo *obdo) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, done_writing); + MD_COUNTER_INCREMENT(exp->exp_obd, done_writing); + rc = MDP(exp->exp_obd, done_writing)(exp, obdo); + RETURN(rc); +} + +static inline int md_enqueue(struct obd_export *exp, int lock_type, + struct lookup_intent *it, int lock_mode, + struct mdc_op_data *data, + struct lustre_handle *lockh, + void *lmm, int lmmsize, + ldlm_completion_callback cb_completion, + ldlm_blocking_callback cb_blocking, + void *cb_data) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, enqueue); + MD_COUNTER_INCREMENT(exp->exp_obd, enqueue); + rc = MDP(exp->exp_obd, enqueue)(exp, lock_type, it, lock_mode, + data, lockh, lmm, lmmsize, + cb_completion, cb_blocking, + cb_data); + RETURN(rc); +} + +static inline int md_getattr_name(struct obd_export *exp, struct ll_fid *fid, + char *filename, int namelen, + unsigned long valid, unsigned int ea_size, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, getattr_name); + MD_COUNTER_INCREMENT(exp->exp_obd, getattr_name); + rc = MDP(exp->exp_obd, getattr_name)(exp, fid, filename, namelen, + valid, ea_size, request); + RETURN(rc); +} + +static inline int md_intent_lock(struct obd_export *exp, struct ll_uctxt *uctxt, + struct ll_fid *pfid, const char *name, + int len, void *lmm, int lmmsize, + struct ll_fid *cfid, struct lookup_intent *it, + int flags, struct ptlrpc_request **reqp, + ldlm_blocking_callback cb_blocking) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, intent_lock); + MD_COUNTER_INCREMENT(exp->exp_obd, intent_lock); + rc = MDP(exp->exp_obd, intent_lock)(exp, uctxt, pfid, name, len, + lmm, lmmsize, cfid, it, flags, + reqp, cb_blocking); + RETURN(rc); +} + +static inline int md_link(struct obd_export *exp, struct mdc_op_data *data, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, link); + MD_COUNTER_INCREMENT(exp->exp_obd, link); + rc = MDP(exp->exp_obd, link)(exp, data, request); + RETURN(rc); +} + +static inline int md_rename(struct obd_export *exp, struct mdc_op_data *data, + const char *old, int oldlen, + const char *new, int newlen, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, rename); + MD_COUNTER_INCREMENT(exp->exp_obd, rename); + rc = MDP(exp->exp_obd, rename)(exp, data, old, oldlen, new, + newlen, request); + RETURN(rc); +} + +static inline int md_setattr(struct obd_export *exp, struct mdc_op_data *data, + struct iattr *iattr, void *ea, int ealen, + void *ea2, int ea2len, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, setattr); + MD_COUNTER_INCREMENT(exp->exp_obd, setattr); + rc = MDP(exp->exp_obd, setattr)(exp, data, iattr, ea, ealen, + ea2, ea2len, request); + RETURN(rc); +} + +static inline int md_sync(struct obd_export *exp, struct ll_fid *fid, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, sync); + MD_COUNTER_INCREMENT(exp->exp_obd, sync); + rc = MDP(exp->exp_obd, sync)(exp, fid, request); + RETURN(rc); +} + +static inline int md_readpage(struct obd_export *exp, struct ll_fid *fid, + __u64 offset, struct page *page, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, readpage); + MD_COUNTER_INCREMENT(exp->exp_obd, readpage); + rc = MDP(exp->exp_obd, readpage)(exp, fid, offset, page, request); + RETURN(rc); +} + +static inline int md_unlink(struct obd_export *exp, struct mdc_op_data *data, + struct ptlrpc_request **request) +{ + int rc; + ENTRY; + EXP_CHECK_MD_OP(exp, unlink); + MD_COUNTER_INCREMENT(exp->exp_obd, unlink); + rc = MDP(exp->exp_obd, unlink)(exp, data, request); + RETURN(rc); +} + +static inline struct obd_device *md_get_real_obd(struct obd_export *exp, + char *name, int len) +{ + ENTRY; + if (MDP(exp->exp_obd, get_real_obd) == NULL) + return exp->exp_obd; + MD_COUNTER_INCREMENT(exp->exp_obd, get_real_obd); + return MDP(exp->exp_obd, get_real_obd)(exp, name, len); +} + +static inline int md_valid_attrs(struct obd_export *exp, struct ll_fid *fid) +{ + ENTRY; + EXP_CHECK_MD_OP(exp, valid_attrs); + MD_COUNTER_INCREMENT(exp->exp_obd, valid_attrs); + return MDP(exp->exp_obd, valid_attrs)(exp, fid); +} + +static inline int md_req2lustre_md(struct obd_export *exp, + struct ptlrpc_request *req, + unsigned int offset, + struct obd_export *osc_exp, + struct lustre_md *md) +{ + ENTRY; + EXP_CHECK_MD_OP(exp, req2lustre_md); + MD_COUNTER_INCREMENT(exp->exp_obd, req2lustre_md); + return MDP(exp->exp_obd, req2lustre_md)(exp, req, offset, osc_exp, md); +} + +static inline int md_set_open_replay_data(struct obd_export *exp, + struct obd_client_handle *och, + struct ptlrpc_request *open_req) +{ + ENTRY; + EXP_CHECK_MD_OP(exp, set_open_replay_data); + MD_COUNTER_INCREMENT(exp->exp_obd, set_open_replay_data); + return MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req); +} + +static inline int md_clear_open_replay_data(struct obd_export *exp, + struct obd_client_handle *och) +{ + ENTRY; + EXP_CHECK_MD_OP(exp, clear_open_replay_data); + MD_COUNTER_INCREMENT(exp->exp_obd, clear_open_replay_data); + return MDP(exp->exp_obd, clear_open_replay_data)(exp, och); +} + +static inline int md_store_inode_generation(struct obd_export *exp, + struct ptlrpc_request *req, + int reqoff, int repoff) +{ + ENTRY; + EXP_CHECK_MD_OP(exp, store_inode_generation); + MD_COUNTER_INCREMENT(exp->exp_obd, store_inode_generation); + return MDP(exp->exp_obd, store_inode_generation)(exp, req, + reqoff, repoff); +} +static inline int md_set_lock_data(struct obd_export *exp, __u64 *l, void *data) +{ + ENTRY; + EXP_CHECK_MD_OP(exp, set_lock_data); + MD_COUNTER_INCREMENT(exp->exp_obd, set_lock_data); + return MDP(exp->exp_obd, set_lock_data)(exp, l, data); +} + +/* OBD Metadata Support */ + +extern int obd_init_caches(void); +extern void obd_cleanup_caches(void); +/* support routines */ +extern kmem_cache_t *obdo_cachep; +static inline struct obdo *obdo_alloc(void) +{ + struct obdo *oa; + + oa = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL); + if (oa == NULL) + LBUG(); + CDEBUG(D_MALLOC, "kmem_cache_alloced oa at %p\n", oa); + memset(oa, 0, sizeof (*oa)); + + return oa; +} + +static inline void obdo_free(struct obdo *oa) +{ + if (!oa) + return; + CDEBUG(D_MALLOC, "kmem_cache_freed oa at %p\n", oa); + kmem_cache_free(obdo_cachep, oa); +} + +#if !defined(__KERNEL__) || (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) +#define to_kdev_t(dev) dev +#define kdev_t_to_nr(dev) dev #endif +/* I'm as embarrassed about this as you are. + * + * // XXX do not look into _superhack with remaining eye + * // XXX if this were any uglier, I'd get my own show on MTV */ +extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c); +extern void (*ptlrpc_abort_inflight_superhack)(struct obd_import *imp); + /* sysctl.c */ extern void obd_sysctl_init (void); extern void obd_sysctl_clean (void); -#endif /* __LINUX_CLASS_OBD_H */ +/* uuid.c */ +typedef __u8 class_uuid_t[16]; +//int class_uuid_parse(struct obd_uuid in, class_uuid_t out); +void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out); + +/* lustre_peer.c */ +int lustre_uuid_to_peer(char *uuid, __u32 *peer_nal, ptl_nid_t *peer_nid); +int class_add_uuid(char *uuid, __u64 nid, __u32 nal); +int class_del_uuid (char *uuid); +void class_init_uuidlist(void); +void class_exit_uuidlist(void); + +/* mea.c */ +int mea_name2idx(struct mea *mea, char *name, int namelen); +int raw_name2idx(int count, const char *name, int namelen); + +#endif /* __LINUX_OBD_CLASS_H */