#include <lustre_disk.h>
#include <lustre_mds.h>
-#define MDT_ROCOMPAT_SUPP (OBD_ROCOMPAT_LOVOBJID)
-#define MDT_INCOMPAT_SUPP (OBD_INCOMPAT_MDT | OBD_INCOMPAT_COMMON_LR)
-
-/* Data stored per client in the last_rcvd file. In le32 order. */
-struct mds_client_data {
- __u8 mcd_uuid[40]; /* client UUID */
- __u64 mcd_last_transno; /* last completed transaction ID */
- __u64 mcd_last_xid; /* xid for the last transaction */
- __u32 mcd_last_result; /* result from last RPC */
- __u32 mcd_last_data; /* per-op data (disposition for open &c.) */
- /* for MDS_CLOSE requests */
- __u64 mcd_last_close_transno; /* last completed transaction ID */
- __u64 mcd_last_close_xid; /* xid for the last transaction */
- __u32 mcd_last_close_result; /* result from last RPC */
- __u32 mcd_last_close_data; /* per-op data (disposition for open &c.) */
- __u8 mcd_padding[LR_CLIENT_SIZE - 88];
-};
-
-#define MDS_SERVICE_WATCHDOG_TIMEOUT (obd_timeout * 1000)
-
-#define MAX_ATIME_DIFF 60
-
-struct mds_filter_data {
- __u64 io_epoch;
-};
-
-#define MDS_FILTERDATA(inode) ((struct mds_filter_data *)(inode)->i_filterdata)
-
-static inline struct mds_obd *mds_req2mds(struct ptlrpc_request *req)
-{
- return &req->rq_export->exp_obd->u.mds;
-}
-
-#ifdef __KERNEL__
-/* Open counts for files. No longer atomic, must hold inode->i_sem */
-# define mds_inode_oatomic(inode) ((inode)->i_cindex)
-
-#ifdef HAVE_I_ALLOC_SEM
-#define MDS_UP_READ_ORPHAN_SEM(i) UP_READ_I_ALLOC_SEM(i)
-#define MDS_DOWN_READ_ORPHAN_SEM(i) DOWN_READ_I_ALLOC_SEM(i)
-#define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT_I_ALLOC_SEM_READ_LOCKED(i)
-
-#define MDS_UP_WRITE_ORPHAN_SEM(i) UP_WRITE_I_ALLOC_SEM(i)
-#define MDS_DOWN_WRITE_ORPHAN_SEM(i) DOWN_WRITE_I_ALLOC_SEM(i)
-#define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i)
-#define MDS_PACK_MD_LOCK 1
-#else
-#define MDS_UP_READ_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0)
-#define MDS_DOWN_READ_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0)
-#define LASSERT_MDS_ORPHAN_READ_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0)
-
-#define MDS_UP_WRITE_ORPHAN_SEM(i) do { up(&(i)->i_sem); } while (0)
-#define MDS_DOWN_WRITE_ORPHAN_SEM(i) do { down(&(i)->i_sem); } while (0)
-#define LASSERT_MDS_ORPHAN_WRITE_LOCKED(i) LASSERT(down_trylock(&(i)->i_sem)!=0)
-#define MDS_PACK_MD_LOCK 0
-#endif
-
-static inline int mds_orphan_open_count(struct inode *inode)
-{
- LASSERT_MDS_ORPHAN_READ_LOCKED(inode);
- return mds_inode_oatomic(inode);
-}
-
-static inline int mds_orphan_open_inc(struct inode *inode)
-{
- LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
- return ++mds_inode_oatomic(inode);
-}
-
-static inline int mds_orphan_open_dec_test(struct inode *inode)
-{
- LASSERT_MDS_ORPHAN_WRITE_LOCKED(inode);
- return --mds_inode_oatomic(inode) == 0;
-}
-
-#define mds_inode_is_orphan(inode) ((inode)->i_flags & 0x4000000)
-
-static inline void mds_inode_set_orphan(struct inode *inode)
-{
- inode->i_flags |= 0x4000000;
- CDEBUG(D_VFSTRACE, "setting orphan flag on inode %p\n", inode);
-}
-
-static inline void mds_inode_unset_orphan(struct inode *inode)
-{
- inode->i_flags &= ~(0x4000000);
- CDEBUG(D_VFSTRACE, "removing orphan flag from inode %p\n", inode);
-}
-
-#endif /* __KERNEL__ */
-
-#define MDS_CHECK_RESENT(req, reconstruct) \
-{ \
- if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) { \
- struct mds_client_data *mcd = \
- req->rq_export->exp_mds_data.med_mcd; \
- if (le64_to_cpu(mcd->mcd_last_xid) == req->rq_xid) { \
- reconstruct; \
- RETURN(le32_to_cpu(mcd->mcd_last_result)); \
- } \
- if (le64_to_cpu(mcd->mcd_last_close_xid) == req->rq_xid) { \
- reconstruct; \
- RETURN(le32_to_cpu(mcd->mcd_last_close_result)); \
- } \
- DEBUG_REQ(D_HA, req, "no reply for RESENT req (have "LPD64")",\
- mcd->mcd_last_xid); \
- } \
-}
-
-/* mds/mds_reint.c */
-int res_gt(const struct ldlm_res_id *res1, const struct ldlm_res_id *res2,
- ldlm_policy_data_t *p1, ldlm_policy_data_t *p2);
-int enqueue_ordered_locks(struct obd_device *obd,
- const struct ldlm_res_id *p1_res_id,
- struct lustre_handle *p1_lockh, int p1_lock_mode,
- ldlm_policy_data_t *p1_policy,
- const struct ldlm_res_id *p2_res_id,
- struct lustre_handle *p2_lockh, int p2_lock_mode,
- ldlm_policy_data_t *p2_policy);
-void mds_commit_cb(struct obd_device *, __u64 last_rcvd, void *data, int error);
-int mds_finish_transno(struct mds_obd *mds, struct inode *inode, void *handle,
- struct ptlrpc_request *req, int rc, __u32 op_data,
- int force_sync);
-void mds_reconstruct_generic(struct ptlrpc_request *req);
-void mds_req_from_mcd(struct ptlrpc_request *req, struct mds_client_data *mcd);
-int mds_get_parent_child_locked(struct obd_device *obd, struct mds_obd *mds,
- struct ll_fid *fid,
- struct lustre_handle *parent_lockh,
- struct dentry **dparentp, int parent_mode,
- __u64 parent_lockpart,
- char *name, int namelen,
- struct lustre_handle *child_lockh,
- struct dentry **dchildp, int child_mode,
- __u64 child_lockpart);
-int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
- struct lustre_handle *child_lockh);
-
-int mds_get_parents_children_locked(struct obd_device *obd,
- struct mds_obd *mds,
- struct ll_fid *p1_fid,
- struct dentry **de_srcdirp,
- struct ll_fid *p2_fid,
- struct dentry **de_tgtdirp,
- int parent_mode,
- const char *old_name, int old_len,
- struct dentry **de_oldp,
- const char *new_name, int new_len,
- struct dentry **de_newp,
- struct lustre_handle *dlm_handles,
- int child_mode);
-
-void mds_shrink_reply(struct obd_device *obd, struct ptlrpc_request *req,
- struct mds_body *body, int md_off);
-int mds_get_cookie_size(struct obd_device *obd, struct lov_mds_md *lmm);
-/* mds/mds_lib.c */
-int mds_update_unpack(struct ptlrpc_request *, int offset,
- struct mds_update_record *);
-int mds_init_ucred(struct lvfs_ucred *ucred, struct ptlrpc_request *req,
- int offset);
-void mds_exit_ucred(struct lvfs_ucred *ucred, struct mds_obd *obd);
-
-/* mds/mds_unlink_open.c */
-int mds_osc_destroy_orphan(struct obd_device *obd, umode_t mode,
- struct lov_mds_md *lmm, int lmm_size,
- struct llog_cookie *logcookies, int log_unlink);
int mds_cleanup_pending(struct obd_device *obd);
/* mds/mds_lov.c */
int mds_lov_connect(struct obd_device *obd, char * lov_name);
int mds_lov_disconnect(struct obd_device *obd);
-int mds_lov_write_objids(struct obd_device *obd);
int mds_lov_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid);
void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm);
struct lov_mds_md *lmm, int lmm_size);
int mds_init_lov_desc(struct obd_device *obd, struct obd_export *osc_exp);
-/* mds/mds_open.c */
-int mds_query_write_access(struct inode *inode);
-int mds_open(struct mds_update_record *rec, int offset,
- struct ptlrpc_request *req, struct lustre_handle *);
-int mds_pin(struct ptlrpc_request *req, int offset);
-void mds_mfd_unlink(struct mds_file_data *mfd, int decref);
-int mds_mfd_close(struct ptlrpc_request *req, int offset,struct obd_device *obd,
- struct mds_file_data *mfd, int unlink_orphan,
- struct lov_mds_md *lmm, int lmm_size,
- struct llog_cookie *logcookies, int cookies_size,
- __u64 *valid);
-int mds_close(struct ptlrpc_request *req, int offset);
-int mds_done_writing(struct ptlrpc_request *req, int offset);
-
-/*mds/mds_join.c*/
-int mds_join_file(struct mds_update_record *rec, struct ptlrpc_request *req,
- struct dentry *dchild, struct lustre_handle *lockh);
-
-/* mds/mds_fs.c */
-int mds_client_add(struct obd_device *obd, struct obd_export *exp,
- int cl_off, void *localdata);
-int mds_client_free(struct obd_export *exp);
int mds_obd_create(struct obd_export *exp, struct obdo *oa,
struct lov_stripe_md **ea, struct obd_trans_info *oti);
int mds_obd_destroy(struct obd_export *exp, struct obdo *oa,
struct lov_stripe_md *ea, struct obd_trans_info *oti,
struct obd_export *md_exp);
-void mds_init_ctxt(struct obd_device *obd, struct vfsmount *mnt);
/* mds/handler.c */
extern struct lvfs_callback_ops mds_lvfs_ops;
-extern int mds_iocontrol(unsigned int cmd, struct obd_export *exp,
- int len, void *karg, void *uarg);
-int mds_postrecov(struct obd_device *obd);
-int mds_init_export(struct obd_export *exp);
-#ifdef __KERNEL__
-int mds_get_md(struct obd_device *, struct inode *, void *md, int *size,
- int lock);
-int mds_pack_md(struct obd_device *, struct lustre_msg *, int offset,
- struct mds_body *, struct inode *, int lock);
-void mds_pack_inode2fid(struct ll_fid *fid, struct inode *inode);
-void mds_pack_inode2body(struct mds_body *body, struct inode *inode);
-#endif
-int mds_pack_acl(struct mds_export_data *med, struct inode *inode,
- struct lustre_msg *repmsg, struct mds_body *repbody,
- int repoff);
-
/* quota stuff */
extern quota_interface_t *mds_quota_interface_ref;
-/* mds/mds_xattr.c */
-int mds_setxattr(struct ptlrpc_request *req);
-int mds_getxattr(struct ptlrpc_request *req);
-
/* mds/lproc_mds.c */
enum {
LPROC_MDS_OPEN = 0,
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