-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
+ * Copyright (c) 2011, 2014, Intel Corporation.
+ */
+/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
#ifndef _LUSTRE_MDC_H
#define _LUSTRE_MDC_H
-#ifdef __KERNEL__
-# include <linux/fs.h>
-# include <linux/dcache.h>
-# ifdef CONFIG_FS_POSIX_ACL
-# ifdef HAVE_XATTR_ACL
-# include <linux/xattr_acl.h>
-# endif /*HAVE_XATTR_ACL */
-# ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
-# include <linux/posix_acl_xattr.h>
-# endif /* HAVE_LINUX_POSIX_ACL_XATTR_H */
-# endif /* CONFIG_FS_POSIX_ACL */
-# ifndef HAVE_VFS_INTENT_PATCHES
-# include <linux/lustre_intent.h>
-# endif /* HAVE_VFS_INTENT_PATCHES */
-#endif /* __KERNEL__ */
+/** \defgroup mdc mdc
+ *
+ * @{
+ */
+
+#include <linux/fs.h>
+#include <linux/dcache.h>
+#ifdef CONFIG_LUSTRE_FS_POSIX_ACL
+# include <lustre_compat.h>
+#endif /* CONFIG_LUSTRE_FS_POSIX_ACL */
#include <lustre_handles.h>
+#include <lustre_intent.h>
#include <libcfs/libcfs.h>
-#include <lustre/lustre_idl.h>
+#include <obd_class.h>
+#include <uapi/linux/lustre/lustre_idl.h>
#include <lustre_lib.h>
#include <lustre_dlm.h>
-#include <lustre_log.h>
#include <lustre_export.h>
struct ptlrpc_client;
struct ptlrpc_request;
struct obd_device;
-struct mdc_rpc_lock {
- cfs_semaphore_t rpcl_sem;
- struct lookup_intent *rpcl_it;
-};
-
-static inline void mdc_init_rpc_lock(struct mdc_rpc_lock *lck)
+static inline void mdc_get_mod_rpc_slot(struct ptlrpc_request *req,
+ struct lookup_intent *it)
{
- cfs_sema_init(&lck->rpcl_sem, 1);
- lck->rpcl_it = NULL;
-}
+ struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
+ __u32 opc;
+ __u16 tag;
-static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
- struct lookup_intent *it)
-{
- ENTRY;
- if (!it || (it->it_op != IT_GETATTR && it->it_op != IT_LOOKUP)) {
- cfs_down(&lck->rpcl_sem);
- LASSERT(lck->rpcl_it == NULL);
- lck->rpcl_it = it;
- }
+ opc = lustre_msg_get_opc(req->rq_reqmsg);
+ tag = obd_get_mod_rpc_slot(cli, opc, it);
+ lustre_msg_set_tag(req->rq_reqmsg, tag);
+ ptlrpc_reassign_next_xid(req);
}
-static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck,
- struct lookup_intent *it)
+static inline void mdc_put_mod_rpc_slot(struct ptlrpc_request *req,
+ struct lookup_intent *it)
{
- if (!it || (it->it_op != IT_GETATTR && it->it_op != IT_LOOKUP)) {
- LASSERT(it == lck->rpcl_it);
- lck->rpcl_it = NULL;
- cfs_up(&lck->rpcl_sem);
- }
- EXIT;
+ struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
+ __u32 opc;
+ __u16 tag;
+
+ opc = lustre_msg_get_opc(req->rq_reqmsg);
+ tag = lustre_msg_get_tag(req->rq_reqmsg);
+ obd_put_mod_rpc_slot(cli, opc, it, tag);
}
+
+/**
+ * Update the maximum possible easize.
+ *
+ * This value is learned from ptlrpc replies sent by the MDT. The
+ * default easize is initialized to the minimum value but allowed to
+ * grow up to a single page in size if required to handle the common
+ * case.
+ *
+ * \see client_obd::cl_default_mds_easize
+ *
+ * \param[in] exp export for MDC device
+ * \param[in] body body of ptlrpc reply from MDT
+ *
+ */
static inline void mdc_update_max_ea_from_body(struct obd_export *exp,
- struct mdt_body *body)
+ struct mdt_body *body)
{
- if (body->valid & OBD_MD_FLMODEASIZE) {
- if (exp->exp_obd->u.cli.cl_max_mds_easize < body->max_mdsize)
- exp->exp_obd->u.cli.cl_max_mds_easize =
- body->max_mdsize;
- if (exp->exp_obd->u.cli.cl_max_mds_cookiesize <
- body->max_cookiesize)
- exp->exp_obd->u.cli.cl_max_mds_cookiesize =
- body->max_cookiesize;
- }
-}
+ if (body->mbo_valid & OBD_MD_FLMODEASIZE) {
+ struct client_obd *cli = &exp->exp_obd->u.cli;
+ __u32 def_easize;
+ if (cli->cl_max_mds_easize < body->mbo_max_mdsize)
+ cli->cl_max_mds_easize = body->mbo_max_mdsize;
+
+ def_easize = min_t(__u32, body->mbo_max_mdsize,
+ OBD_MAX_DEFAULT_EA_SIZE);
+ cli->cl_default_mds_easize = def_easize;
+ }
+}
-struct mdc_cache_waiter {
- cfs_list_t mcw_entry;
- cfs_waitq_t mcw_waitq;
-};
/* mdc/mdc_locks.c */
-int it_disposition(struct lookup_intent *it, int flag);
-void it_clear_disposition(struct lookup_intent *it, int flag);
-void it_set_disposition(struct lookup_intent *it, int flag);
int it_open_error(int phase, struct lookup_intent *it);
-#ifdef HAVE_SPLIT_SUPPORT
-int mdc_sendpage(struct obd_export *exp, const struct lu_fid *fid,
- const struct page *page, int offset);
-#endif
+
+static inline bool cl_is_lov_delay_create(unsigned int flags)
+{
+ return (flags & O_LOV_DELAY_CREATE_1_8) != 0 ||
+ (flags & O_LOV_DELAY_CREATE_MASK) == O_LOV_DELAY_CREATE_MASK;
+}
+
+static inline void cl_lov_delay_create_clear(unsigned int *flags)
+{
+ if ((*flags & O_LOV_DELAY_CREATE_1_8) != 0)
+ *flags &= ~O_LOV_DELAY_CREATE_1_8;
+ if ((*flags & O_LOV_DELAY_CREATE_MASK) == O_LOV_DELAY_CREATE_MASK)
+ *flags &= ~O_LOV_DELAY_CREATE_MASK;
+}
+
+/** @} mdc */
+
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff