/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * This file is part of Lustre, http://www.lustre.org
+ * 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 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/include/lustre_mds.h
*
* MDS data structures.
* See also lustre_idl.h for wire formats of requests.
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_mode;
__u32 ur_flags;
struct lvfs_grp_hash_entry *ur_grp_entry;
+ struct ldlm_request *ur_dlm;
};
/* file data for open files on MDS */
/* ACL */
#ifdef CONFIG_FS_POSIX_ACL
-#ifdef HAVE_XATTR_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
+# 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
+# endif /* HAVE_XATTR_ACL */
+
# define LUSTRE_POSIX_ACL_MAX_ENTRIES (32)
-# define LUSTRE_POSIX_ACL_MAX_SIZE \
+# define LUSTRE_POSIX_ACL_MAX_SIZE \
(mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES))
-#else
+#else /* CONFIG_FS_POSIX_ACL */
# define LUSTRE_POSIX_ACL_MAX_SIZE 0
-#endif
+#endif /* CONFIG_FS_POSIX_ACL */
/* mds/mds_reint.c */
int mds_reint_rec(struct mds_update_record *r, int offset,
struct ptlrpc_request *req, struct lustre_handle *);
-/* mds/mds_lov.c */
+/* 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 */
-int it_disposition(struct lookup_intent *it, int flag);
-void it_set_disposition(struct lookup_intent *it, int flag);
-void it_clear_disposition(struct lookup_intent *it, int flag);
+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);
+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,
- int lock_type,
- struct lookup_intent *it,
- int lock_mode,
- struct mdc_op_data *data,
- struct lustre_handle *lockh,
- void *lmm,
- int lmmlen,
- ldlm_completion_callback cb_completion,
- ldlm_blocking_callback cb_blocking,
- void *cb_data, 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);
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 obdo *, struct obd_client_handle *,
- struct ptlrpc_request **);
+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,
- __u32 cap_effective, __u64 rdev,struct ptlrpc_request **request);
+ 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,
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);
/* 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 *exp, struct obdo *);
+int mdc_done_writing(struct obd_export *, struct mdc_op_data *, struct obdo *);
-static inline void mdc_pack_fid(struct ll_fid *fid, obd_id ino, __u32 gen,
- int type)
+static inline void ll_pack_fid(struct ll_fid *fid, obd_id ino, __u32 gen,
+ int type)
{
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_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