-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001-2004 Cluster File Systems, Inc. <info@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License 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).
*
- * Lustre 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 for more details.
+ * 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
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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.
*
- * Filesystem interface helper.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
+ * lustre/include/linux/lustre_fsfilt.h
+ *
+ * Filesystem interface helper.
*/
#ifndef _LINUX_LUSTRE_FSFILT_H
typedef void (*fsfilt_cb_t)(struct obd_device *obd, __u64 last_rcvd,
void *data, int error);
-struct fsfilt_objinfo {
- struct dentry *fso_dentry;
- int fso_bufcnt;
-};
-
-#define XATTR_LUSTRE_MDS_LOV_EA "lov"
-
-struct lustre_dquot;
struct fsfilt_operations {
- struct list_head fs_list;
- struct module *fs_owner;
+ cfs_list_t fs_list;
+ cfs_module_t *fs_owner;
char *fs_type;
char *(* fs_getlabel)(struct super_block *sb);
- int (* fs_setlabel)(struct super_block *sb, char *label);
- char *(* fs_uuid)(struct super_block *sb);
void *(* fs_start)(struct inode *inode, int op, void *desc_private,
int logs);
- void *(* fs_brw_start)(int objcount, struct fsfilt_objinfo *fso,
- int niocount, struct niobuf_local *nb,
- void *desc_private, int logs);
- int (* fs_extend)(struct inode *inode, unsigned nblocks, void *h);
int (* fs_commit)(struct inode *inode, void *handle,int force_sync);
- int (* fs_commit_async)(struct inode *inode, void *handle,
- void **wait_handle);
- int (* fs_commit_wait)(struct inode *inode, void *handle);
- int (* fs_setattr)(struct dentry *dentry, void *handle,
- struct iattr *iattr, int do_trunc);
- int (* fs_iocontrol)(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
- int (* fs_set_md)(struct inode *inode, void *handle, void *md,
- int size, const char *name);
- int (* fs_get_md)(struct inode *inode, void *md, int size,
- const char *name);
- /*
- * this method is needed to make IO operation fsfilt nature depend.
- *
- * This operation maybe synchronous or asynchronous.
- *
- * Return convention: positive number of bytes written (synchronously)
- * on success. Negative errno value on failure. Zero if asynchronous
- * IO was submitted successfully.
- *
- */
- int (* fs_send_bio)(int rw, struct inode *inode,struct kiobuf *bio);
- ssize_t (* fs_readpage)(struct file *file, char *buf, size_t count,
- loff_t *offset);
- int (* fs_add_journal_cb)(struct obd_device *obd, __u64 last_rcvd,
- void *handle, fsfilt_cb_t cb_func,
- void *cb_data);
- int (* fs_statfs)(struct super_block *sb, struct obd_statfs *osfs);
- int (* fs_sync)(struct super_block *sb);
int (* fs_map_inode_pages)(struct inode *inode, struct page **page,
int pages, unsigned long *blocks,
int *created, int create,
- struct semaphore *sem);
- int (* fs_prep_san_write)(struct inode *inode, long *blocks,
- int nblocks, loff_t newsize);
+ struct mutex *sem);
int (* fs_write_record)(struct file *, void *, int size, loff_t *,
int force_sync);
int (* fs_read_record)(struct file *, void *, int size, loff_t *);
int (* fs_setup)(struct super_block *sb);
- int (* fs_get_op_len)(int, struct fsfilt_objinfo *, int);
- int (* fs_quotacheck)(struct super_block *sb,
- struct obd_quotactl *oqctl);
- int (* fs_quotactl)(struct super_block *sb,
- struct obd_quotactl *oqctl);
- int (* fs_quotainfo)(struct lustre_quota_info *lqi, int type,
- int cmd);
- int (* fs_qids)(struct file *file, struct inode *inode, int type,
- struct list_head *list);
- int (* fs_dquot)(struct lustre_dquot *dquot, int cmd);
- lvfs_sbdev_type (* fs_journal_sbdev)(struct super_block *sb);
};
extern int fsfilt_register_ops(struct fsfilt_operations *fs_ops);
return obd->obd_fsops->fs_getlabel(sb);
}
-static inline int fsfilt_set_label(struct obd_device *obd,
- struct super_block *sb, char *label)
-{
- if (obd->obd_fsops->fs_setlabel == NULL)
- return -ENOSYS;
- return (obd->obd_fsops->fs_setlabel(sb, label));
-}
-
-static inline __u8 *fsfilt_uuid(struct obd_device *obd, struct super_block *sb)
-{
- if (obd->obd_fsops->fs_uuid == NULL)
- return NULL;
-
- return obd->obd_fsops->fs_uuid(sb);
-}
-
-static inline lvfs_sbdev_type fsfilt_journal_sbdev(struct obd_device *obd,
- struct super_block *sb)
-{
- if (obd && obd->obd_fsops && obd->obd_fsops->fs_journal_sbdev)
- return obd->obd_fsops->fs_journal_sbdev(sb);
- return (lvfs_sbdev_type)0;
-}
-
-#define FSFILT_OP_UNLINK 1
-#define FSFILT_OP_RMDIR 2
-#define FSFILT_OP_RENAME 3
-#define FSFILT_OP_CREATE 4
-#define FSFILT_OP_MKDIR 5
-#define FSFILT_OP_SYMLINK 6
-#define FSFILT_OP_MKNOD 7
-#define FSFILT_OP_SETATTR 8
-#define FSFILT_OP_LINK 9
-#define FSFILT_OP_CANCEL_UNLINK 10
-#define FSFILT_OP_JOIN 11
-#define FSFILT_OP_NOOP 15
+#define FSFILT_OP_UNLINK 1
+#define FSFILT_OP_RMDIR 2
+#define FSFILT_OP_RENAME 3
+#define FSFILT_OP_CREATE 4
+#define FSFILT_OP_MKDIR 5
+#define FSFILT_OP_SYMLINK 6
+#define FSFILT_OP_MKNOD 7
+#define FSFILT_OP_SETATTR 8
+#define FSFILT_OP_LINK 9
+#define FSFILT_OP_CANCEL_UNLINK 10
+
+#define __fsfilt_check_slow(obd, start, msg) \
+do { \
+ if (cfs_time_before(jiffies, start + 15 * CFS_HZ)) \
+ break; \
+ else if (cfs_time_before(jiffies, start + 30 * CFS_HZ)) \
+ CDEBUG(D_VFSTRACE, "%s: slow %s %lus\n", obd->obd_name, \
+ msg, (jiffies-start) / CFS_HZ); \
+ else if (cfs_time_before(jiffies, start + DISK_TIMEOUT * CFS_HZ)) \
+ CWARN("%s: slow %s %lus\n", obd->obd_name, msg, \
+ (jiffies - start) / CFS_HZ); \
+ else \
+ CERROR("%s: slow %s %lus\n", obd->obd_name, msg, \
+ (jiffies - start) / CFS_HZ); \
+} while (0)
-#define fsfilt_check_slow(obd, start, timeout, msg) \
-do { \
- if (time_before(jiffies, start + 15 * HZ)) \
- break; \
- else if (time_before(jiffies, start + 30 * HZ)) \
- CDEBUG(D_VFSTRACE, "%s: slow %s %lus\n", obd->obd_name, \
- msg, (jiffies-start) / HZ); \
- else if (time_before(jiffies, start + timeout / 2 * HZ)) \
- CWARN("%s: slow %s %lus\n", obd->obd_name, msg, \
- (jiffies - start) / HZ); \
- else \
- CERROR("%s: slow %s %lus\n", obd->obd_name, msg, \
- (jiffies - start) / HZ); \
+#define fsfilt_check_slow(obd, start, msg) \
+do { \
+ __fsfilt_check_slow(obd, start, msg); \
+ start = jiffies; \
} while (0)
static inline void *fsfilt_start_log(struct obd_device *obd,
void *parent_handle = oti ? oti->oti_handle : NULL;
void *handle;
- if (obd->obd_fail)
- return ERR_PTR(-EROFS);
-
handle = obd->obd_fsops->fs_start(inode, op, parent_handle, logs);
CDEBUG(D_INFO, "started handle %p (%p)\n", handle, parent_handle);
LBUG();
}
}
- fsfilt_check_slow(obd, now, obd_timeout, "journal start");
+ fsfilt_check_slow(obd, now, "journal start");
return handle;
}
-static inline void *fsfilt_start(struct obd_device *obd, struct inode *inode,
- int op, struct obd_trans_info *oti)
-{
- return fsfilt_start_log(obd, inode, op, oti, 0);
-}
-
-static inline void *fsfilt_brw_start_log(struct obd_device *obd, int objcount,
- struct fsfilt_objinfo *fso,
- int niocount, struct niobuf_local *nb,
- struct obd_trans_info *oti, int logs)
-{
- unsigned long now = jiffies;
- void *parent_handle = oti ? oti->oti_handle : NULL;
- void *handle;
-
- if (obd->obd_fail)
- return ERR_PTR(-EROFS);
-
- handle = obd->obd_fsops->fs_brw_start(objcount, fso, niocount, nb,
- parent_handle, logs);
- CDEBUG(D_INFO, "started handle %p (%p)\n", handle, parent_handle);
-
- if (oti != NULL) {
- if (parent_handle == NULL) {
- oti->oti_handle = handle;
- } else if (handle != parent_handle) {
- CERROR("mismatch: parent %p, handle %p, oti %p\n",
- parent_handle, handle, oti);
- LBUG();
- }
- }
- fsfilt_check_slow(obd, now, obd_timeout, "journal start");
-
- return handle;
-}
-
-static inline void *fsfilt_brw_start(struct obd_device *obd, int objcount,
- struct fsfilt_objinfo *fso, int niocount,
- struct niobuf_local *nb,
- struct obd_trans_info *oti)
-{
- return fsfilt_brw_start_log(obd, objcount, fso, niocount, nb, oti, 0);
-}
-
-static inline int fsfilt_extend(struct obd_device *obd, struct inode *inode,
- unsigned int nblocks, void *handle)
-{
- unsigned long now = jiffies;
- int rc = obd->obd_fsops->fs_extend(inode, nblocks, handle);
- CDEBUG(D_INFO, "extending handle %p with %u blocks\n", handle, nblocks);
-
- fsfilt_check_slow(obd, now, obd_timeout, "journal extend");
-
- return rc;
-}
-
static inline int fsfilt_commit(struct obd_device *obd, struct inode *inode,
void *handle, int force_sync)
{
int rc = obd->obd_fsops->fs_commit(inode, handle, force_sync);
CDEBUG(D_INFO, "committing handle %p\n", handle);
- fsfilt_check_slow(obd, now, obd_timeout, "journal start");
-
- return rc;
-}
-
-static inline int fsfilt_commit_async(struct obd_device *obd,
- struct inode *inode, void *handle,
- void **wait_handle)
-{
- unsigned long now = jiffies;
- int rc = obd->obd_fsops->fs_commit_async(inode, handle, wait_handle);
-
- CDEBUG(D_INFO, "committing handle %p (async)\n", *wait_handle);
- fsfilt_check_slow(obd, now, obd_timeout, "journal start");
-
- return rc;
-}
-
-static inline int fsfilt_commit_wait(struct obd_device *obd,
- struct inode *inode, void *handle)
-{
- unsigned long now = jiffies;
- int rc = obd->obd_fsops->fs_commit_wait(inode, handle);
- CDEBUG(D_INFO, "waiting for completion %p\n", handle);
- fsfilt_check_slow(obd, now, obd_timeout, "journal start");
- return rc;
-}
+ fsfilt_check_slow(obd, now, "journal start");
-static inline int fsfilt_setattr(struct obd_device *obd, struct dentry *dentry,
- void *handle, struct iattr *iattr,int do_trunc)
-{
- unsigned long now = jiffies;
- int rc;
- rc = obd->obd_fsops->fs_setattr(dentry, handle, iattr, do_trunc);
- fsfilt_check_slow(obd, now, obd_timeout, "setattr");
return rc;
}
-static inline int fsfilt_iocontrol(struct obd_device *obd, struct inode *inode,
- struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- return obd->obd_fsops->fs_iocontrol(inode, file, cmd, arg);
-}
-
-static inline int fsfilt_set_md(struct obd_device *obd, struct inode *inode,
- void *handle, void *md, int size,
- const char *name)
-{
- return obd->obd_fsops->fs_set_md(inode, handle, md, size, name);
-}
-
-static inline int fsfilt_get_md(struct obd_device *obd, struct inode *inode,
- void *md, int size, const char *name)
-{
- return obd->obd_fsops->fs_get_md(inode, md, size, name);
-}
-
-static inline int fsfilt_send_bio(int rw, struct obd_device *obd,
- struct inode *inode, void *bio)
-{
- LASSERTF(rw == OBD_BRW_WRITE || rw == OBD_BRW_READ, "%x\n", rw);
-
- if (rw == OBD_BRW_READ)
- return obd->obd_fsops->fs_send_bio(READ, inode, bio);
- return obd->obd_fsops->fs_send_bio(WRITE, inode, bio);
-}
-
-static inline ssize_t fsfilt_readpage(struct obd_device *obd,
- struct file *file, char *buf,
- size_t count, loff_t *offset)
-{
- return obd->obd_fsops->fs_readpage(file, buf, count, offset);
-}
-
-static inline int fsfilt_add_journal_cb(struct obd_device *obd, __u64 last_rcvd,
- void *handle, fsfilt_cb_t cb_func,
- void *cb_data)
-{
- return obd->obd_fsops->fs_add_journal_cb(obd, last_rcvd,
- handle, cb_func, cb_data);
-}
-
-/* very similar to obd_statfs(), but caller already holds obd_osfs_lock */
-static inline int fsfilt_statfs(struct obd_device *obd, struct super_block *sb,
- __u64 max_age)
-{
- int rc = 0;
-
- CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
- obd->obd_osfs_age, max_age);
- if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
- rc = obd->obd_fsops->fs_statfs(sb, &obd->obd_osfs);
- if (rc == 0) /* N.B. statfs can't really fail */
- obd->obd_osfs_age = cfs_time_current_64();
- } else {
- CDEBUG(D_SUPER, "using cached obd_statfs data\n");
- }
-
- return rc;
-}
-
-static inline int fsfilt_sync(struct obd_device *obd, struct super_block *sb)
-{
- return obd->obd_fsops->fs_sync(sb);
-}
-
-static inline int fsfilt_quotacheck(struct obd_device *obd,
- struct super_block *sb,
- struct obd_quotactl *oqctl)
-{
- if (obd->obd_fsops->fs_quotacheck)
- return obd->obd_fsops->fs_quotacheck(sb, oqctl);
- return -ENOTSUPP;
-}
-
-static inline int fsfilt_quotactl(struct obd_device *obd,
- struct super_block *sb,
- struct obd_quotactl *oqctl)
-{
- if (obd->obd_fsops->fs_quotactl)
- return obd->obd_fsops->fs_quotactl(sb, oqctl);
- return -ENOTSUPP;
-}
-
-static inline int fsfilt_quotainfo(struct obd_device *obd,
- struct lustre_quota_info *lqi,
- int type, int cmd)
-{
- if (obd->obd_fsops->fs_quotainfo)
- return obd->obd_fsops->fs_quotainfo(lqi, type, cmd);
- return -ENOTSUPP;
-}
-
-static inline int fsfilt_qids(struct obd_device *obd, struct file *file,
- struct inode *inode, int type,
- struct list_head *list)
-{
- if (obd->obd_fsops->fs_qids)
- return obd->obd_fsops->fs_qids(file, inode, type, list);
- return -ENOTSUPP;
-}
-
-static inline int fsfilt_dquot(struct obd_device *obd,
- struct lustre_dquot *dquot, int cmd)
-{
- if (obd->obd_fsops->fs_dquot)
- return obd->obd_fsops->fs_dquot(dquot, cmd);
- return -ENOTSUPP;
-}
-
static inline int fsfilt_map_inode_pages(struct obd_device *obd,
struct inode *inode,
struct page **page, int pages,
unsigned long *blocks, int *created,
- int create, struct semaphore *sem)
+ int create, struct mutex *mutex)
{
return obd->obd_fsops->fs_map_inode_pages(inode, page, pages, blocks,
- created, create, sem);
-}
-
-static inline int fs_prep_san_write(struct obd_device *obd, struct inode *inode,
- long *blocks, int nblocks, loff_t newsize)
-{
- return obd->obd_fsops->fs_prep_san_write(inode, blocks,
- nblocks, newsize);
+ created, create, mutex);
}
static inline int fsfilt_read_record(struct obd_device *obd, struct file *file,
return 0;
}
+
+
#endif /* __KERNEL__ */
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff