+++ /dev/null
-/*
- * 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) 2012, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LLU_H_
-#define __LLU_H_
-
-#include <fcntl.h>
-#include <limits.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <time.h>
-#include <unistd.h>
-#include <sysio.h>
-#ifdef HAVE_XTIO_H
-# include <xtio.h>
-#endif
-#include <fs.h>
-#include <mount.h>
-#include <inode.h>
-#ifdef HAVE_FILE_H
-# include <file.h>
-#endif
-#include <libcfs/libcfs.h>
-#include <lustre/lustre_idl.h>
-#include <lclient.h>
-#include <lustre_lib.h>
-#include <lustre_lite.h>
-
-enum cl_req_type;
-
-/* This should not be "optimized" use ~0ULL because page->index is a long and
- * 32-bit systems are therefore limited to 16TB in a mapping */
-#define MAX_LFS_FILESIZE ((__u64)(~0UL) << PAGE_CACHE_SHIFT)
-struct ll_file_data {
- struct obd_client_handle fd_mds_och;
- __u32 fd_flags;
- struct ccc_grouplock fd_grouplock;
-};
-
-struct llu_sb_info {
- struct obd_uuid ll_sb_uuid;
- struct obd_export *ll_md_exp;
- struct obd_export *ll_dt_exp;
- struct lu_fid ll_root_fid;
- struct lustre_client_ocd ll_lco;
- cfs_list_t ll_conn_chain;
- struct lu_site *ll_site;
- struct cl_device *ll_cl;
-};
-
-enum lli_flags {
- /* MDS has an authority for the Size-on-MDS attributes. */
- LLIF_MDS_SIZE_LOCK = (1 << 0),
-};
-
-struct llu_inode_info {
- struct llu_sb_info *lli_sbi;
- struct lu_fid lli_fid;
-
- char *lli_symlink_name;
- __u64 lli_maxbytes;
- unsigned long lli_flags;
- __u64 lli_ioepoch;
-
- /* for libsysio */
- struct file_identifier lli_sysio_fid;
-
- struct lookup_intent *lli_it;
-
- /* XXX workaround for libsysio readdir */
- loff_t lli_dir_pos;
-
- /* in libsysio we have no chance to store data in file,
- * so place it here. since it's possible that an file
- * was opened several times without close, we track an
- * open_count here */
- struct ll_file_data *lli_file_data;
- /* checking lli_has_smd is reliable only inside an IO
- * i.e, lov stripe has been held. */
- bool lli_has_smd;
- int lli_open_flags;
- int lli_open_count;
-
- /* not for stat, change it later */
- int lli_st_flags;
- unsigned long lli_st_generation;
- struct cl_object *lli_clob;
- /* the most recent timestamps obtained from mds */
- struct ost_lvb lli_lvb;
-};
-
-static inline struct llu_sb_info *llu_fs2sbi(struct filesys *fs)
-{
- return (struct llu_sb_info*)(fs->fs_private);
-}
-
-static inline struct llu_inode_info *llu_i2info(struct inode *inode)
-{
- return (struct llu_inode_info*)(inode->i_private);
-}
-
-static inline int ll_inode_flags(struct inode *inode)
-{
- return llu_i2info(inode)->lli_st_flags;
-}
-
-static inline struct intnl_stat *llu_i2stat(struct inode *inode)
-{
- return &inode->i_stbuf;
-}
-
-#define ll_inode_blksize(inode) (llu_i2stat(inode)->st_blksize)
-
-static inline struct llu_sb_info *llu_i2sbi(struct inode *inode)
-{
- return llu_i2info(inode)->lli_sbi;
-}
-
-static inline struct obd_export *llu_i2obdexp(struct inode *inode)
-{
- return llu_i2info(inode)->lli_sbi->ll_dt_exp;
-}
-
-static inline struct obd_export *llu_i2mdexp(struct inode *inode)
-{
- return llu_i2info(inode)->lli_sbi->ll_md_exp;
-}
-
-static inline int llu_is_root_inode(struct inode *inode)
-{
- return (fid_seq(&llu_i2info(inode)->lli_fid) ==
- fid_seq(&llu_i2info(inode)->lli_sbi->ll_root_fid) &&
- fid_oid(&llu_i2info(inode)->lli_fid) ==
- fid_oid(&llu_i2info(inode)->lli_sbi->ll_root_fid));
-}
-
-#define LL_SAVE_INTENT(inode, it) \
-do { \
- struct lookup_intent *temp; \
- LASSERT(llu_i2info(inode)->lli_it == NULL); \
- OBD_ALLOC(temp, sizeof(*temp)); \
- memcpy(temp, it, sizeof(*temp)); \
- llu_i2info(inode)->lli_it = temp; \
- CDEBUG(D_DENTRY, "alloc intent %p to inode %p(ino %llu)\n", \
- temp, inode, (long long)llu_i2stat(inode)->st_ino); \
-} while(0)
-
-
-#define LL_GET_INTENT(inode, it) \
-do { \
- it = llu_i2info(inode)->lli_it; \
- \
- LASSERT(it); \
- llu_i2info(inode)->lli_it = NULL; \
- CDEBUG(D_DENTRY, "dettach intent %p from inode %p(ino %llu)\n", \
- it, inode, (long long)llu_i2stat(inode)->st_ino); \
-} while(0)
-
-static inline struct lu_fid *ll_inode2fid(struct inode *inode)
-{
- LASSERT(inode != NULL);
- return &llu_i2info(inode)->lli_fid;
-}
-
-void ll_i2gids(__u32 *suppgids, struct inode *i1,struct inode *i2);
-
-static inline __u64 ll_file_maxbytes(struct inode *inode)
-{
- return llu_i2info(inode)->lli_maxbytes;
-}
-
-#define IS_BAD_PTR(ptr) \
- ((unsigned long)(ptr) == 0 || (unsigned long)(ptr) > -1000UL)
-
-/* llite_lib.c */
-int liblustre_process_log(struct config_llog_instance *cfg, char *mgsnid,
- char *profile, int allow_recov);
-int ll_parse_mount_target(const char *target, char **mgsnid,
- char **fsname);
-extern char *lustre_path;
-
-/* super.c */
-void llu_update_inode(struct inode *inode, struct lustre_md *md);
-struct inode *llu_iget(struct filesys *fs, struct lustre_md *md);
-int llu_inode_getattr(struct inode *inode, struct obdo *obdo,
- __u64 ioepoch, int sync);
-int llu_md_setattr(struct inode *inode, struct md_op_data *op_data,
- struct md_open_data **mod);
-int llu_setattr_raw(struct inode *inode, struct iattr *attr);
-int llu_put_grouplock(struct inode *inode, unsigned long arg);
-
-extern struct fssw_ops llu_fssw_ops;
-
-/* file.c */
-void llu_prep_md_op_data(struct md_op_data *op_data, struct inode *i1,
- struct inode *i2, const char *name, int namelen,
- int mode, __u32 opc);
-int llu_local_open(struct llu_inode_info *lli, struct lookup_intent *it);
-int llu_iop_open(struct pnode *pnode, int flags, mode_t mode);
-void llu_done_writing_attr(struct inode *inode, struct md_op_data *op_data);
-int llu_md_close(struct obd_export *md_exp, struct inode *inode);
-void llu_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data,
- struct lustre_handle *fh);
-int llu_file_release(struct inode *inode);
-int llu_som_update(struct inode *inode, struct md_op_data *op_data);
-int llu_iop_close(struct inode *inode);
-_SYSIO_OFF_T llu_iop_pos(struct inode *ino, _SYSIO_OFF_T off);
-void obdo_refresh_inode(struct inode *dst, struct obdo *src, obd_flag valid);
-int llu_objects_destroy(struct ptlrpc_request *request, struct inode *dir);
-void llu_ioepoch_open(struct llu_inode_info *lli, __u64 ioepoch);
-
-/* rw.c */
-int llu_iop_read(struct inode *ino, struct ioctx *ioctxp);
-int llu_iop_write(struct inode *ino, struct ioctx *ioctxp);
-int llu_iop_iodone(struct ioctx *ioctxp);
-
-/* namei.c */
-int llu_iop_lookup(struct pnode *pnode,
- struct inode **inop,
- struct intent *intnt,
- const char *path);
-struct inode *llu_inode_from_resource_lock(struct ldlm_lock *lock);
-int llu_md_blocking_ast(struct ldlm_lock *lock,
- struct ldlm_lock_desc *desc,
- void *data, int flag);
-
-/* dir.c */
-ssize_t llu_iop_filldirentries(struct inode *ino, _SYSIO_OFF_T *basep,
- char *buf, size_t nbytes);
-
-/* ext2 related */
-#define EXT2_NAME_LEN (255)
-
-struct ext2_dirent {
- __u32 inode;
- __u16 rec_len;
- __u8 name_len;
- __u8 file_type;
- char name[EXT2_NAME_LEN];
-};
-
-static inline struct ext2_dirent *ext2_next_entry(struct ext2_dirent *p)
-{
- return (struct ext2_dirent*)((char*) p + le16_to_cpu(p->rec_len));
-}
-
-int llu_merge_lvb(const struct lu_env *env, struct inode *inode);
-
-static inline void inode_init_lvb(struct inode *inode, struct ost_lvb *lvb)
-{
- struct intnl_stat *st = llu_i2stat(inode);
- lvb->lvb_size = st->st_size;
- lvb->lvb_blocks = st->st_blocks;
- lvb->lvb_mtime = st->st_mtime;
- lvb->lvb_atime = st->st_atime;
- lvb->lvb_ctime = st->st_ctime;
-}
-
-struct llu_io_session {
- struct inode *lis_inode;
- int lis_cmd;
- int lis_rc;
- __u64 lis_rwcount;
-};
-
-struct llu_io_group
-{
- int lig_rc;
- __u64 lig_rwcount;
-};
-
-struct llu_io_session;
-void put_io_group(struct llu_io_group *group);
-
-int cl_sb_init(struct llu_sb_info *sbi);
-int cl_sb_fini(struct llu_sb_info *sbi);
-
-void llu_io_init(struct cl_io *io, struct inode *inode, int write);
-
-struct slp_io {
- struct llu_io_session *sio_session;
-};
-
-struct slp_session {
- struct slp_io ss_ios;
-};
-
-int slp_global_init(void);
-void slp_global_fini(void);
-
-static inline struct slp_session *slp_env_session(const struct lu_env *env)
-{
- extern struct lu_context_key slp_session_key;
- struct slp_session *ses;
- ses = lu_context_key_get(env->le_ses, &slp_session_key);
- LASSERT(ses != NULL);
- return ses;
-}
-static inline struct slp_io *slp_env_io(const struct lu_env *env)
-{
- return &slp_env_session(env)->ss_ios;
-}
-
-/* lclient compat stuff */
-#define cl_inode_info llu_inode_info
-#define cl_i2info(info) llu_i2info(info)
-#define cl_inode_mode(inode) (llu_i2stat(inode)->st_mode)
-#define cl_i2sbi llu_i2sbi
-#define cl_isize_read(inode) (llu_i2stat(inode)->st_size)
-#define cl_isize_write(inode,kms) do{llu_i2stat(inode)->st_size = kms;}while(0)
-#define cl_isize_write_nolock(inode,kms) cl_isize_write(inode,kms)
-
-static inline struct ll_file_data *cl_iattr2fd(struct inode *inode,
- const struct iattr *attr)
-{
- return llu_i2info(inode)->lli_file_data;
-}
-
-static inline void cl_isize_lock(struct inode *inode)
-{
-}
-
-static inline void cl_isize_unlock(struct inode *inode)
-{
-}
-
-static inline int cl_merge_lvb(const struct lu_env *env, struct inode *inode)
-{
- return llu_merge_lvb(env, inode);
-}
-
-#define cl_inode_atime(inode) (llu_i2stat(inode)->st_atime)
-#define cl_inode_ctime(inode) (llu_i2stat(inode)->st_ctime)
-#define cl_inode_mtime(inode) (llu_i2stat(inode)->st_mtime)
-
-static inline struct obd_capa *cl_capa_lookup(struct inode *inode,
- enum cl_req_type crt)
-{
- return NULL;
-}
-
-static inline void cl_stats_tally(struct cl_device *dev, enum cl_req_type crt,
- int rc)
-{
-}
-
-static inline loff_t i_size_read(struct inode *inode)
-{
- return inode->i_stbuf.st_size;
-}
-
-static inline __u64 hash_x_index(__u64 hash, int hash64)
-{
- if (BITS_PER_LONG == 32 && hash64)
- hash >>= 32;
- /* save hash 0 with hash 1 */
- return ~0ULL - (hash + !hash);
-}
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff