/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * Copyright (C) 2003 Cluster File Systems, Inc. * * This code is issued under the GNU General Public License. * See the file COPYING in this distribution */ #ifndef _FILTER_INTERNAL_H #define _FILTER_INTERNAL_H #ifdef __KERNEL__ # include #endif #include #include #ifndef OBD_FILTER_DEVICENAME # define OBD_FILTER_DEVICENAME "obdfilter" #endif #ifndef OBD_FILTER_SAN_DEVICENAME # define OBD_FILTER_SAN_DEVICENAME "sanobdfilter" #endif #define LAST_RCVD "last_rcvd" #define FILTER_INIT_OBJID 2 /* max creates/sec * journal->j_commit_interval */ #define FILTER_SKIP_OBJID (10000 * 5) #define FILTER_LR_SERVER_SIZE 512 #define FILTER_LR_CLIENT_START 8192 #define FILTER_LR_CLIENT_SIZE 128 /* This limit is arbitrary, but for now we fit it in 1 page (32k clients) */ #define FILTER_LR_MAX_CLIENTS (PAGE_SIZE * 8) #define FILTER_LR_MAX_CLIENT_WORDS (FILTER_LR_MAX_CLIENTS/sizeof(unsigned long)) #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */ #define FILTER_MOUNT_RECOV 2 #define FILTER_RECOVERY_TIMEOUT (obd_timeout * 5 * HZ / 2) /* *waves hands* */ /* Data stored per server at the head of the last_rcvd file. In le32 order. */ struct filter_server_data { __u8 fsd_uuid[37]; /* server UUID */ __u8 fsd_uuid_padding[3]; /* unused */ __u64 fsd_last_objid; /* last created object ID */ __u64 fsd_last_transno; /* last completed transaction ID */ __u64 fsd_mount_count; /* FILTER incarnation number */ __u32 fsd_feature_compat; /* compatible feature flags */ __u32 fsd_feature_rocompat;/* read-only compatible feature flags */ __u32 fsd_feature_incompat;/* incompatible feature flags */ __u32 fsd_server_size; /* size of server data area */ __u32 fsd_client_start; /* start of per-client data area */ __u16 fsd_client_size; /* size of per-client data area */ __u16 fsd_subdir_count; /* number of subdirectories for objects */ __u64 fsd_catalog_oid; /* recovery catalog object id */ __u32 fsd_catalog_ogen; /* recovery catalog inode generation */ __u8 fsd_peeruuid[37]; /* UUID of MDS associated with this OST */ __u8 peer_padding[3]; /* unused */ __u8 fsd_padding[FILTER_LR_SERVER_SIZE - 140]; }; /* Data stored per client in the last_rcvd file. In le32 order. */ struct filter_client_data { __u8 fcd_uuid[37]; /* client UUID */ __u8 fcd_uuid_padding[3]; /* unused */ __u64 fcd_last_rcvd; /* last completed transaction ID */ __u64 fcd_mount_count; /* FILTER incarnation number */ __u64 fcd_last_xid; /* client RPC xid for the last transaction */ __u8 fcd_padding[FILTER_LR_CLIENT_SIZE - 64]; }; /* file data for open files on OST */ struct filter_file_data { struct portals_handle ffd_handle; atomic_t ffd_refcount; struct list_head ffd_export_list; /* export open list - fed_lock */ struct file *ffd_file; /* file handle */ }; struct filter_dentry_data { struct llog_cookie fdd_cookie; obd_id fdd_objid; __u32 fdd_magic; atomic_t fdd_open_count; int fdd_flags; }; #define FILTER_DENTRY_MAGIC 0x9efba101 #define FILTER_FLAG_DESTROY 0x0001 /* destroy dentry on last file close */ /* Limit the returned fields marked valid to those that we actually might set */ #define FILTER_VALID_FLAGS (OBD_MD_FLTYPE | OBD_MD_FLMODE | OBD_MD_FLGENER |\ OBD_MD_FLSIZE | OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ|\ OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME) enum { LPROC_FILTER_READ_BYTES = 0, LPROC_FILTER_WRITE_BYTES = 1, LPROC_FILTER_LAST, }; /* filter.c */ struct dentry *filter_parent(struct obd_device *, obd_mode mode, obd_id objid); struct dentry *filter_parent_lock(struct obd_device *, obd_mode mode, obd_id objid, ldlm_mode_t lock_mode, struct lustre_handle *lockh); void f_dput(struct dentry *); struct dentry *filter_fid2dentry(struct obd_device *, struct dentry *dir, obd_mode mode, obd_id id); struct dentry *__filter_oa2dentry(struct obd_device *obd, struct obdo *oa, const char *what); #define filter_oa2dentry(obd, oa) __filter_oa2dentry(obd, oa, __FUNCTION__) int filter_finish_transno(struct obd_export *, struct obd_trans_info *, int rc); __u64 filter_next_id(struct filter_obd *); int filter_update_server_data(struct obd_device *, struct file *, struct filter_server_data *); int filter_common_setup(struct obd_device *, obd_count len, void *buf, char *option); /* filter_io.c */ int filter_preprw(int cmd, struct obd_export *, struct obdo *, int objcount, struct obd_ioobj *, int niocount, struct niobuf_remote *, struct niobuf_local *, struct obd_trans_info *); int filter_commitrw(int cmd, struct obd_export *, struct obdo *, int objcount, struct obd_ioobj *, int niocount, struct niobuf_local *, struct obd_trans_info *); int filter_brw(int cmd, struct lustre_handle *, struct obdo *, struct lov_stripe_md *, obd_count oa_bufs, struct brw_page *, struct obd_trans_info *); /* filter_log.c */ int filter_log_cancel(struct lustre_handle *, struct lov_stripe_md *, int num_cookies, struct llog_cookie *, int flags); int filter_log_op_create(struct llog_handle *cathandle, struct ll_fid *mds_fid, obd_id oid, obd_count ogen, struct llog_cookie *); int filter_log_op_orphan(struct llog_handle *cathandle, obd_id oid, obd_count ogen, struct llog_cookie *); struct llog_handle *filter_get_catalog(struct obd_device *); void filter_put_catalog(struct llog_handle *cathandle); /* filter_san.c */ int filter_san_setup(struct obd_device *obd, obd_count len, void *buf); int filter_san_preprw(int cmd, struct obd_export *, struct obdo *, int objcount, struct obd_ioobj *, int niocount, struct niobuf_remote *); #endif