+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ */
+
#ifndef __LLU_H_
#define __LLU_H_
#include <liblustre.h>
-#include <linux/obd.h>
-#include <linux/obd_class.h>
-#include <portals/procbridge.h>
-#include <linux/lustre_lite.h>
+#include <obd.h>
+#include <obd_class.h>
+#include <lustre_mdc.h>
+#include <lustre_lite.h>
+#include <lustre_ver.h>
#include <sys/types.h>
#include <sys/stat.h>
+/* 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 PAGE_CACHE_MAXBYTES ((__u64)(~0UL) << CFS_PAGE_SHIFT)
+
struct ll_file_data {
struct obd_client_handle fd_mds_och;
- struct obd_client_handle fd_ost_och;
__u32 fd_flags;
+ struct lustre_handle fd_cwlockh;
+ unsigned long fd_gid;
};
-struct llu_sb_info
-{
- struct obd_uuid ll_sb_uuid;
- struct lustre_handle ll_mdc_conn;
- struct lustre_handle ll_osc_conn;
- obd_id ll_rootino;
- int ll_flags;
- struct list_head ll_conn_chain;
+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;
+ int ll_flags;
+ struct lustre_client_ocd ll_lco;
+ struct list_head ll_conn_chain;
+
+ struct obd_uuid ll_mds_uuid;
+ struct obd_uuid ll_mds_peer_uuid;
+ char *ll_instance;
+};
+
+#define LL_SBI_NOLCK 0x1
+
+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 ll_fid lli_fid;
- struct lov_stripe_md *lli_smd;
- char *lli_symlink_name;
- /*struct semaphore lli_open_sem;*/
- unsigned long lli_flags;
- struct list_head lli_read_extents;
-
- /* in libsysio we have no chance to store data in file,
- * so place it here */
- struct ll_file_data *lli_file_data;
-
- /* stat FIXME not 64 bit clean */
- dev_t lli_st_dev;
- ino_t lli_st_ino;
- mode_t lli_st_mode;
- nlink_t lli_st_nlink;
- uid_t lli_st_uid;
- gid_t lli_st_gid;
- dev_t lli_st_rdev;
- loff_t lli_st_size;
- unsigned int lli_st_blksize;
- unsigned int lli_st_blocks;
- time_t lli_st_atime;
- time_t lli_st_mtime;
- time_t lli_st_ctime;
-
- /* not for stat, change it later */
- int lli_st_flags;
- unsigned long lli_st_generation;
+ struct llu_sb_info *lli_sbi;
+ struct lu_fid lli_fid;
+
+ struct lov_stripe_md *lli_smd;
+ char *lli_symlink_name;
+ struct semaphore lli_open_sem;
+ __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;
+ int lli_open_flags;
+ int lli_open_count;
+
+ /* not for stat, change it later */
+ int lli_st_flags;
+ unsigned long lli_st_generation;
};
static inline struct llu_sb_info *llu_fs2sbi(struct filesys *fs)
{
- return (struct llu_sb_info*)(fs->fs_private);
+ 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);
+ return (struct llu_inode_info*)(inode->i_private);
+}
+
+static inline struct intnl_stat *llu_i2stat(struct inode *inode)
+{
+ return &inode->i_stbuf;
}
static inline struct llu_sb_info *llu_i2sbi(struct inode *inode)
return llu_i2info(inode)->lli_sbi;
}
-static inline struct client_obd *sbi2mdc(struct llu_sb_info *sbi)
+static inline struct obd_export *llu_i2obdexp(struct inode *inode)
{
- struct obd_device *obd = class_conn2obd(&sbi->ll_mdc_conn);
- if (obd == NULL)
- LBUG();
- return &obd->u.cli;
+ return llu_i2info(inode)->lli_sbi->ll_dt_exp;
}
-static inline struct lustre_handle *llu_i2obdconn(struct inode *inode)
+static inline struct obd_export *llu_i2mdcexp(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)
+
+/* interpet return codes from intent lookup */
+#define LL_LOOKUP_POSITIVE 1
+#define LL_LOOKUP_NEGATIVE 2
+
+static inline struct lu_fid *ll_inode2fid(struct inode *inode)
{
- return &(llu_i2info(inode)->lli_sbi->ll_osc_conn);
+ LASSERT(inode != NULL);
+ return &llu_i2info(inode)->lli_fid;
}
+struct it_cb_data {
+ struct inode *icbd_parent;
+ struct pnode *icbd_child;
+ obd_id hash;
+};
+
+void ll_i2gids(__u32 *suppgids, struct inode *i1,struct inode *i2);
+
+typedef int (*intent_finish_cb)(struct ptlrpc_request *,
+ struct inode *parent, struct pnode *pnode,
+ struct lookup_intent *, int offset, obd_id ino);
+int llu_intent_lock(struct inode *parent, struct pnode *pnode,
+ struct lookup_intent *, int flags, intent_finish_cb);
+
+static inline __u64 ll_file_maxbytes(struct inode *inode)
+{
+ return llu_i2info(inode)->lli_maxbytes;
+}
struct mount_option_s
{
- char *mdc_uuid;
- char *osc_uuid;
+ char *md_uuid;
+ char *dt_uuid;
};
+#define IS_BAD_PTR(ptr) \
+ ((unsigned long)(ptr) == 0 || (unsigned long)(ptr) > -1000UL)
+
/* llite_lib.c */
-void generate_random_uuid(unsigned char uuid_out[16]);
+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 struct mount_option_s mount_option;
/* super.c */
-void llu_update_inode(struct inode *inode, struct mds_body *body,
+void llu_update_inode(struct inode *inode, struct mdt_body *body,
struct lov_stripe_md *lmm);
void obdo_to_inode(struct inode *dst, struct obdo *src, obd_flag valid);
void obdo_from_inode(struct obdo *dst, struct inode *src, obd_flag valid);
-struct inode* llu_new_inode(struct filesys *fs, ino_t ino, mode_t mode);
+int ll_it_open_error(int phase, struct lookup_intent *it);
+struct inode *llu_iget(struct filesys *fs, struct lustre_md *md);
+int llu_inode_getattr(struct inode *inode, struct obdo *obdo);
+int llu_md_setattr(struct inode *inode, struct md_op_data *op_data);
+int llu_setattr_raw(struct inode *inode, struct iattr *attr);
extern struct fssw_ops llu_fssw_ops;
/* file.c */
-void llu_prepare_mdc_op_data(struct mdc_op_data *data,
- struct inode *i1,
- struct inode *i2,
- const char *name,
- int namelen,
- int mode);
+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);
+void llu_finish_md_op_data(struct md_op_data *op_data);
int llu_create(struct inode *dir, struct pnode_base *pnode, int mode);
+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);
+int llu_md_close(struct obd_export *md_exp, struct inode *inode);
+int llu_file_release(struct inode *inode);
+int llu_sizeonmds_update(struct inode *inode, struct lustre_handle *fh,
+ __u64 ioepoch);
int llu_iop_close(struct inode *inode);
-int llu_iop_ipreadv(struct inode *ino,
- struct io_arguments *ioargs,
- struct ioctx **ioctxp);
-int llu_iop_ipwritev(struct inode *ino,
- struct io_arguments *ioargs,
- struct ioctx **ioctxp);
+_SYSIO_OFF_T llu_iop_pos(struct inode *ino, _SYSIO_OFF_T off);
+int llu_vmtruncate(struct inode * inode, loff_t offset, obd_flag obd_flags);
+void obdo_refresh_inode(struct inode *dst, struct obdo *src, obd_flag valid);
+int llu_objects_destroy(struct ptlrpc_request *request, struct inode *dir);
/* rw.c */
-int llu_iop_iodone(struct ioctx *ioctxp __IS_UNUSED);
-ssize_t llu_file_write(struct inode *inode, const struct iovec *iovec,
- size_t iovlen, loff_t pos);
-ssize_t llu_file_read(struct inode *inode, const struct iovec *iovec,
- size_t iovlen, loff_t pos);
+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);
+int llu_local_size(struct inode *inode);
+int llu_glimpse_size(struct inode *inode);
+int llu_extent_lock(struct ll_file_data *fd, struct inode *inode,
+ struct lov_stripe_md *lsm, int mode,
+ ldlm_policy_data_t *policy, struct lustre_handle *lockh,
+ int ast_flags);
+int llu_extent_unlock(struct ll_file_data *fd, struct inode *inode,
+ struct lov_stripe_md *lsm, int mode,
+ struct lustre_handle *lockh);
+
+/* namei.c */
+int llu_iop_lookup(struct pnode *pnode,
+ struct inode **inop,
+ struct intent *intnt,
+ const char *path);
+void unhook_stale_inode(struct pnode *pno);
+struct inode *llu_inode_from_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);
+
+/* liblustre/llite_fid.c*/
+unsigned long llu_fid_build_ino(struct llu_sb_info *sbi,
+ struct lu_fid *fid);
+
+/* 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];
+};
+
+#define EXT2_DIR_PAD 4
+#define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1)
+#define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & \
+ ~EXT2_DIR_ROUND)
+
+static inline struct ext2_dirent *ext2_next_entry(struct ext2_dirent *p)
+{
+ return (struct ext2_dirent*)((char*) p + le16_to_cpu(p->rec_len));
+}
+
+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;
+}
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff