/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 only, * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License version 2 for more details (a copy is included * in the LICENSE file that accompanied this code). * * You should have received a copy of the GNU General Public License * version 2 along with this program; If not, see * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * * GPL HEADER END */ /* * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * Copyright (c) 2011, Whamcloud, Inc. */ /* * This file is part of Lustre, http://www.lustre.org/ * Lustre is a trademark of Sun Microsystems, Inc. */ #ifndef _FILTER_INTERNAL_H #define _FILTER_INTERNAL_H #ifdef __KERNEL__ # include #endif #include #include #include #include #include #define FILTER_LAYOUT_VERSION "2" #define FILTER_INIT_OBJID 0 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */ #define FILTER_GROUPS 3 /* must be at least 3; not dynamic yet */ #define FILTER_ROCOMPAT_SUPP (0) #define FILTER_INCOMPAT_SUPP (OBD_INCOMPAT_GROUPS | OBD_INCOMPAT_OST | \ OBD_INCOMPAT_COMMON_LR) #define FILTER_GRANT_CHUNK (2ULL * PTLRPC_MAX_BRW_SIZE) #define FILTER_GRANT_SHRINK_LIMIT (16ULL * FILTER_GRANT_CHUNK) #define GRANT_FOR_LLOG(obd) 16 extern struct file_operations filter_per_export_stats_fops; extern struct file_operations filter_per_nid_stats_fops; /* 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) /* per-client-per-object persistent state (LRU) */ struct filter_mod_data { cfs_list_t fmd_list; /* linked to fed_mod_list */ __u64 fmd_id; /* object being written to */ __u64 fmd_gr; /* group being written to */ __u64 fmd_mactime_xid;/* xid highest {m,a,c}time * setattr */ unsigned long fmd_expire; /* jiffies when it should expire */ int fmd_refcount; /* reference counter, list holds 1 */ }; #ifdef HAVE_BGL_SUPPORT #define FILTER_FMD_MAX_NUM_DEFAULT 128 /* many active files per client on BGL */ #else #define FILTER_FMD_MAX_NUM_DEFAULT 32 #endif /* Client cache seconds */ #define FILTER_FMD_MAX_AGE_DEFAULT ((obd_timeout + 10) * CFS_HZ) #ifndef HAVE_PAGE_CONSTANT #define mapping_cap_page_constant_write(mapping) 0 #define SetPageConstant(page) do {} while (0) #define ClearPageConstant(page) do {} while (0) #endif struct filter_mod_data *filter_fmd_find(struct obd_export *exp, obd_id objid, obd_seq seq); struct filter_mod_data *filter_fmd_get(struct obd_export *exp, obd_id objid, obd_seq seq); void filter_fmd_put(struct obd_export *exp, struct filter_mod_data *fmd); void filter_fmd_expire(struct obd_export *exp); enum { LPROC_FILTER_READ_BYTES = 0, LPROC_FILTER_WRITE_BYTES = 1, LPROC_FILTER_GET_PAGE = 2, LPROC_FILTER_NO_PAGE = 3, LPROC_FILTER_CACHE_ACCESS = 4, LPROC_FILTER_CACHE_HIT = 5, LPROC_FILTER_CACHE_MISS = 6, LPROC_FILTER_LAST, }; /* for job stats */ enum { LPROC_FILTER_STATS_READ = 0, LPROC_FILTER_STATS_WRITE = 1, LPROC_FILTER_STATS_SETATTR = 2, LPROC_FILTER_STATS_PUNCH = 3, LPROC_FILTER_STATS_SYNC = 4, LPROC_FILTER_STATS_LAST, }; static inline void filter_counter_incr(struct obd_export *exp, int opcode, char *jobid, long amount) { if (exp->exp_obd && exp->exp_obd->u.obt.obt_jobstats.ojs_hash && (exp->exp_connect_flags & OBD_CONNECT_JOBSTATS)) lprocfs_job_stats_log(exp->exp_obd, jobid, opcode, amount); } //#define FILTER_MAX_CACHE_SIZE (32 * 1024 * 1024) /* was OBD_OBJECT_EOF */ #define FILTER_MAX_CACHE_SIZE OBD_OBJECT_EOF /* We have to pass a 'created' array to fsfilt_map_inode_pages() which we * then ignore. So we pre-allocate one that everyone can use... */ #define OBDFILTER_CREATED_SCRATCHPAD_ENTRIES 1024 extern int *obdfilter_created_scratchpad; extern void target_recovery_fini(struct obd_device *obd); extern void target_recovery_init(struct lu_target *lut, svc_handler_t handler); /* filter.c */ void f_dput(struct dentry *); struct dentry *filter_fid2dentry(struct obd_device *, struct dentry *dir, obd_seq seq, obd_id id); struct dentry *__filter_oa2dentry(struct obd_device *obd, struct ost_id *ostid, const char *what, int quiet); #define filter_oa2dentry(obd, ostid) __filter_oa2dentry(obd, ostid, \ __func__, 0) int filter_finish_transno(struct obd_export *, struct inode *, struct obd_trans_info *, int rc, int force_sync); __u64 filter_next_id(struct filter_obd *, struct obdo *); __u64 filter_last_id(struct filter_obd *, obd_seq seq); int filter_update_fidea(struct obd_export *exp, struct inode *inode, void *handle, struct obdo *oa); int filter_update_server_data(struct obd_device *); int filter_update_last_objid(struct obd_device *, obd_seq, int force_sync); int filter_common_setup(struct obd_device *, struct lustre_cfg *lcfg, void *option); int filter_destroy(const struct lu_env *env, struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *md, struct obd_trans_info *, struct obd_export *, void *); int filter_setattr_internal(struct obd_export *exp, struct dentry *dentry, struct obdo *oa, struct obd_trans_info *oti); int filter_setattr(const struct lu_env *env, struct obd_export *exp, struct obd_info *oinfo, struct obd_trans_info *oti); int filter_create(const struct lu_env *env, struct obd_export *exp, struct obdo *oa, struct lov_stripe_md **ea, struct obd_trans_info *oti); struct obd_llog_group *filter_find_olg(struct obd_device *obd, int seq); /* filter_lvb.c */ extern struct ldlm_valblock_ops filter_lvbo; /* filter_io.c */ int filter_preprw(const struct lu_env *env, int cmd, struct obd_export *, struct obdo *, int objcount, struct obd_ioobj *, struct niobuf_remote *, int *, struct niobuf_local *, struct obd_trans_info *, struct lustre_capa *); int filter_commitrw(const struct lu_env *, int cmd, struct obd_export *, struct obdo *, int objcount, struct obd_ioobj *, struct niobuf_remote *, int, struct niobuf_local *, struct obd_trans_info *, int rc); void filter_release_cache(struct obd_device *, struct obd_ioobj *, struct niobuf_remote *, struct inode *); /* filter_io_*.c */ struct filter_iobuf { cfs_hlist_node_t dr_hlist; __u64 dr_hkey; /* number of reqs being processed */ cfs_atomic_t dr_numreqs; cfs_waitq_t dr_wait; int dr_max_pages; int dr_npages; int dr_error; unsigned int dr_ignore_quota:1; struct page **dr_pages; unsigned long *dr_blocks; struct filter_obd *dr_filter; }; int filter_commitrw_write(struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, struct niobuf_remote *, int, struct niobuf_local *res, struct obd_trans_info *oti, int rc); obd_size filter_grant_space_left(struct obd_export *exp); long filter_grant(struct obd_export *exp, obd_size current_grant, obd_size want, obd_size fs_space_left, int conservative); void filter_grant_commit(struct obd_export *exp, int niocount, struct niobuf_local *res); void filter_grant_incoming(struct obd_export *exp, struct obdo *oa); struct filter_iobuf *filter_alloc_iobuf(struct filter_obd *, int rw, int num_pages); void filter_free_iobuf(struct filter_iobuf *iobuf); int filter_iobuf_add_page(struct obd_device *obd, struct filter_iobuf *iobuf, struct inode *inode, struct page *page); void *filter_iobuf_get(struct filter_obd *filter, struct obd_trans_info *oti); void filter_iobuf_put(struct filter_obd *filter, struct filter_iobuf *iobuf, struct obd_trans_info *oti); int filter_direct_io(int rw, struct dentry *dchild, struct filter_iobuf *iobuf, struct obd_export *exp, struct iattr *attr, struct obd_trans_info *oti, void **wait_handle); int filter_clear_truncated_page(struct inode *inode); /* filter_log.c */ struct ost_filterdata { __u32 ofd_epoch; }; int filter_log_sz_change(struct llog_handle *cathandle, struct ll_fid *mds_fid, __u32 ioepoch, struct llog_cookie *logcookie, struct inode *inode); //int filter_get_catalog(struct obd_device *); void filter_cancel_cookies_cb(struct obd_device *obd, __u64 transno, void *cb_data, int error); int filter_recov_log_mds_ost_cb(const struct lu_env *env, struct llog_handle *llh, struct llog_rec_hdr *rec, void *data); #ifdef LPROCFS void filter_tally(struct obd_export *exp, struct page **pages, int nr_pages, unsigned long *blocks, int blocks_per_page, int wr); int lproc_filter_attach_seqstat(struct obd_device *dev); void lprocfs_filter_init_vars(struct lprocfs_static_vars *lvars); void filter_stats_counter_init(struct lprocfs_stats *stats); #else static inline void filter_tally(struct obd_export *exp, struct page **pages, int nr_pages, unsigned long *blocks, int blocks_per_page, int wr) {} static inline int lproc_filter_attach_seqstat(struct obd_device *dev) {} static void lprocfs_filter_init_vars(struct lprocfs_static_vars *lvars) { memset(lvars, 0, sizeof(*lvars)); } static inline void filter_stats_counter_init(struct lprocfs_stats *stats) {} #endif /* Quota stuff */ extern quota_interface_t *filter_quota_interface_ref; int filter_update_capa_key(struct obd_device *obd, struct lustre_capa_key *key); int filter_auth_capa(struct obd_export *exp, struct lu_fid *fid, obd_seq seq, struct lustre_capa *capa, __u64 opc); int filter_capa_fixoa(struct obd_export *exp, struct obdo *oa, obd_seq seq, struct lustre_capa *capa); void filter_free_capa_keys(struct filter_obd *filter); void blacklist_add(uid_t uid); void blacklist_del(uid_t uid); int blacklist_display(char *buf, int bufsize); /* sync on lock cancel is useless when we force a journal flush, * and if we enable async journal commit, we should also turn on * sync on lock cancel if it is not enabled already. */ static inline void filter_slc_set(struct filter_obd *filter) { if (filter->fo_syncjournal == 1) filter->fo_sync_lock_cancel = NEVER_SYNC_ON_CANCEL; else if (filter->fo_sync_lock_cancel == NEVER_SYNC_ON_CANCEL) filter->fo_sync_lock_cancel = ALWAYS_SYNC_ON_CANCEL; } #endif /* _FILTER_INTERNAL_H */