* 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 [sun.com URL with a
- * copy of GPLv2].
+ * 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
#define _LUSTRE_MDS_H
#include <lustre_handles.h>
-#include <libcfs/libcfs.h>
+#include <libcfs/kp30.h>
#include <lustre/lustre_idl.h>
#include <lustre_lib.h>
#include <lustre_dlm.h>
#error Unsupported operating system.
#endif
-struct mds_group_info {
- struct obd_uuid *uuid;
- int group;
+struct ldlm_lock_desc;
+struct mds_obd;
+struct ptlrpc_connection;
+struct ptlrpc_client;
+struct obd_export;
+struct ptlrpc_request;
+struct obd_device;
+struct ll_file_data;
+
+struct lustre_md {
+ struct mds_body *body;
+ struct lov_stripe_md *lsm;
+#ifdef CONFIG_FS_POSIX_ACL
+ struct posix_acl *posix_acl;
+#endif
+};
+
+struct mdc_op_data {
+ struct ll_fid fid1;
+ struct ll_fid fid2;
+ struct ll_fid fid3;
+ struct ll_fid fid4;
+ __u64 mod_time;
+ const char *name;
+ int namelen;
+ __u32 create_mode;
+ __u32 suppgids[2];
+ void *data;
+};
+
+struct mds_update_record {
+ __u32 ur_opcode;
+ struct ll_fid *ur_fid1;
+ struct ll_fid *ur_fid2;
+ int ur_namelen;
+ char *ur_name;
+ int ur_tgtlen;
+ char *ur_tgt;
+ int ur_eadatalen;
+ void *ur_eadata;
+ int ur_cookielen;
+ struct llog_cookie *ur_logcookies;
+ struct iattr ur_iattr;
+ struct lvfs_ucred ur_uc;
+ __u64 ur_rdev;
+ __u64 ur_time;
+ __u32 ur_mode;
+ __u32 ur_flags;
+ struct lvfs_grp_hash_entry *ur_grp_entry;
+ struct ldlm_request *ur_dlm;
+};
+
+/* file data for open files on MDS */
+struct mds_file_data {
+ struct portals_handle mfd_handle; /* must be first */
+ atomic_t mfd_refcount;
+ struct list_head mfd_list; /* protected by med_open_lock */
+ __u64 mfd_xid;
+ int mfd_mode;
+ struct dentry *mfd_dentry;
};
+/* ACL */
+#ifdef CONFIG_FS_POSIX_ACL
+# ifdef HAVE_XATTR_ACL
+# define MDS_XATTR_NAME_ACL_ACCESS XATTR_NAME_ACL_ACCESS
+# define mds_xattr_acl_size(entry) xattr_acl_size(entry)
+# else /* HAVE_XATTR_ACL */
+# define MDS_XATTR_NAME_ACL_ACCESS POSIX_ACL_XATTR_ACCESS
+# define mds_xattr_acl_size(entry) posix_acl_xattr_size(entry)
+# endif /* HAVE_XATTR_ACL */
+
+# define LUSTRE_POSIX_ACL_MAX_ENTRIES (32)
+# define LUSTRE_POSIX_ACL_MAX_SIZE \
+ (mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES))
+#else /* CONFIG_FS_POSIX_ACL */
+# define LUSTRE_POSIX_ACL_MAX_SIZE 0
+#endif /* CONFIG_FS_POSIX_ACL */
+
/* mds/mds_reint.c */
-int mds_lov_write_objids(struct obd_device *obd);
-void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm);
+int mds_reint_rec(struct mds_update_record *r, int offset,
+ struct ptlrpc_request *req, struct lustre_handle *);
+
+/* mds/handler.c */
+static int inline ldlm_reply_disposition(struct ldlm_reply *rep, int flag)
+{
+ return (rep ? rep->lock_policy_res1 & flag : 0);
+}
+
+static void inline ldlm_reply_set_disposition(struct ldlm_reply *rep, int flag)
+{
+ if (rep)
+ rep->lock_policy_res1 |= flag;
+}
+
+static void inline ldlm_reply_clear_disposition(struct ldlm_reply *rep,
+ int flag)
+{
+ if (rep)
+ rep->lock_policy_res1 &= ~flag;
+}
+
+/* mdc/mdc_locks.c */
+struct md_enqueue_info;
+static int inline it_disposition(struct lookup_intent *it, int flag)
+{
+ return it->d.lustre.it_disposition & flag;
+}
+
+static void inline it_set_disposition(struct lookup_intent *it, int flag)
+{
+ it->d.lustre.it_disposition |= flag;
+}
+
+static inline void it_clear_disposition(struct lookup_intent *it, int flag)
+{
+ it->d.lustre.it_disposition &= ~flag;
+}
+
+int it_open_error(int phase, struct lookup_intent *it);
+void mdc_set_lock_data(__u64 *lockh, void *data, __u32 *lockbits);
+int mdc_change_cbdata(struct obd_export *exp, struct ll_fid *fid,
+ ldlm_iterator_t it, void *data);
+int mdc_find_cbdata(struct obd_export *exp, struct ll_fid *fid,
+ ldlm_iterator_t it, void *data);
+int mdc_revalidate_lock(struct obd_export *exp,
+ struct lookup_intent *it,
+ struct ll_fid *fid);
+int mdc_intent_lock(struct obd_export *exp,
+ struct mdc_op_data *,
+ void *lmm, int lmmsize,
+ struct lookup_intent *, int,
+ struct ptlrpc_request **reqp,
+ ldlm_blocking_callback cb_blocking, int extra_lock_flags);
+int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
+ struct lookup_intent *it, struct mdc_op_data *data,
+ struct lustre_handle *lockh, void *lmm, int lmmlen,
+ int extra_lock_flags);
+int mdc_intent_getattr_async(struct obd_export *exp,
+ struct md_enqueue_info *minfo,
+ struct ldlm_enqueue_info *einfo);
+
+/* mdc/mdc_request.c */
+int mdc_init_ea_size(struct obd_export *mdc_exp, struct obd_export *lov_exp);
+int mdc_req2lustre_md(struct ptlrpc_request *req, int offset,
+ struct obd_export *exp, struct lustre_md *md);
+void mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
+int mdc_getstatus(struct obd_export *exp, struct ll_fid *rootfid);
+int mdc_getattr(struct obd_export *exp, struct ll_fid *fid,
+ obd_valid valid, unsigned int ea_size,
+ struct ptlrpc_request **request);
+int mdc_getattr_name(struct obd_export *exp, struct ll_fid *fid,
+ const char *filename, int namelen, unsigned long valid,
+ unsigned int ea_size, struct ptlrpc_request **request);
+int mdc_setattr(struct obd_export *exp, struct mdc_op_data *data,
+ struct iattr *iattr, void *ea, int ealen, void *ea2, int ea2len,
+ struct ptlrpc_request **request);
+int mdc_setxattr(struct obd_export *exp, struct ll_fid *fid,
+ obd_valid valid, const char *xattr_name,
+ const char *input, int input_size,
+ int output_size, int flags,
+ struct ptlrpc_request **request);
+int mdc_getxattr(struct obd_export *exp, struct ll_fid *fid,
+ obd_valid valid, const char *xattr_name,
+ const char *input, int input_size,
+ int output_size, struct ptlrpc_request **request);
+int mdc_open(struct obd_export *exp, obd_id ino, int type, int flags,
+ struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh,
+ struct ptlrpc_request **);
+struct obd_client_handle;
+void mdc_set_open_replay_data(struct obd_client_handle *och,
+ struct ptlrpc_request *open_req);
+void mdc_clear_open_replay_data(struct obd_client_handle *och);
+int mdc_close(struct obd_export *, struct mdc_op_data *, struct obdo *,
+ struct obd_client_handle *, struct ptlrpc_request **);
+int mdc_readpage(struct obd_export *exp, struct ll_fid *mdc_fid, __u64 offset,
+ struct page *, struct ptlrpc_request **);
+int mdc_create(struct obd_export *exp, struct mdc_op_data *op_data,
+ const void *data, int datalen, int mode, __u32 uid, __u32 gid,
+ cfs_cap_t cap_effective, __u64 rdev,
+ struct ptlrpc_request **request);
+int mdc_unlink(struct obd_export *exp, struct mdc_op_data *data,
+ struct ptlrpc_request **request);
+int mdc_link(struct obd_export *exp, struct mdc_op_data *data,
+ struct ptlrpc_request **);
+int mdc_rename(struct obd_export *exp, struct mdc_op_data *data,
+ const char *old, int oldlen, const char *new, int newlen,
+ struct ptlrpc_request **request);
+int mdc_sync(struct obd_export *exp, struct ll_fid *fid,
+ struct ptlrpc_request **);
+int mdc_create_client(struct obd_uuid uuid, struct ptlrpc_client *cl);
+int mdc_resource_get_unused(struct obd_export *exp, struct ll_fid *fid,
+ struct list_head *cancels, ldlm_mode_t mode,
+ __u64 bits);
-#define MDS_LOV_MD_NAME "trusted.lov"
-#define MDS_LMV_MD_NAME "trusted.lmv"
-#define MDD_OBD_NAME "mdd_obd"
-#define MDD_OBD_UUID "mdd_obd_uuid"
-#define MDD_OBD_TYPE "mds"
+/* Store the generation of a newly-created inode in |req| for replay. */
+void mdc_store_inode_generation(struct ptlrpc_request *req, int reqoff,
+ int repoff);
+int mdc_llog_process(struct obd_export *, char *logname, llog_cb_t, void *data);
+int mdc_done_writing(struct obd_export *, struct mdc_op_data *, struct obdo *);
-static inline int md_should_create(__u32 flags)
+static inline void ll_pack_fid(struct ll_fid *fid, obd_id ino, __u32 gen,
+ int type)
{
- return !(flags & MDS_OPEN_DELAY_CREATE ||
- !(flags & FMODE_WRITE));
+ fid->id = ino;
+ fid->generation = gen;
+ fid->f_type = type;
}
+static inline int it_to_lock_mode(struct lookup_intent *it)
+{
+ /* CREAT needs to be tested before open (both could be set) */
+ if (it->it_op & IT_CREAT)
+ return LCK_CW;
+ else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP))
+ return LCK_CR;
+
+ LBUG();
+ return -EINVAL;
+}
+
+/* ioctls for trying requests */
+#define IOC_REQUEST_TYPE 'f'
+#define IOC_REQUEST_MIN_NR 30
+
+#define IOC_REQUEST_GETATTR _IOWR('f', 30, long)
+#define IOC_REQUEST_READPAGE _IOWR('f', 31, long)
+#define IOC_REQUEST_SETATTR _IOWR('f', 32, long)
+#define IOC_REQUEST_CREATE _IOWR('f', 33, long)
+#define IOC_REQUEST_OPEN _IOWR('f', 34, long)
+#define IOC_REQUEST_CLOSE _IOWR('f', 35, long)
+#define IOC_REQUEST_MAX_NR 35
+
+/* metadata stat-ahead */
+typedef int (* md_enqueue_cb_t)(struct obd_export *exp,
+ struct ptlrpc_request *req,
+ struct md_enqueue_info *minfo,
+ int rc);
+
+struct md_enqueue_info {
+ struct mdc_op_data mi_data;
+ struct lookup_intent mi_it;
+ struct lustre_handle mi_lockh;
+ struct dentry *mi_dentry;
+ struct inode *mi_dir;
+ md_enqueue_cb_t mi_cb;
+ unsigned int mi_generation;
+ void *mi_cbdata;
+};
+
+/* these are local flags, used only on the client, private */
+#define M_CHECK_STALE 0200000000
+#define M_JOIN_FILE 0400000000 /* its counterpart is
+ * MDS_OPEN_JOIN_FILE */
+
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff