diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/include/linux/lustre_fsfilt.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/include/linux/lustre_fsfilt.h | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_fsfilt.h b/drivers/staging/lustre/lustre/include/linux/lustre_fsfilt.h deleted file mode 100644 index d5c97beb66f5..000000000000 --- a/drivers/staging/lustre/lustre/include/linux/lustre_fsfilt.h +++ /dev/null @@ -1,171 +0,0 @@ -/* - * 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 (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 -#define _LINUX_LUSTRE_FSFILT_H - -#ifndef _LUSTRE_FSFILT_H -#error Do not #include this file directly. #include <lustre_fsfilt.h> instead -#endif - - -#include "../obd.h" -#include "../obd_class.h" - -typedef void (*fsfilt_cb_t)(struct obd_device *obd, __u64 last_rcvd, - void *data, int error); - -struct fsfilt_operations { - struct list_head fs_list; - struct module *fs_owner; - char *fs_type; - char *(* fs_getlabel)(struct super_block *sb); - void *(* fs_start)(struct inode *inode, int op, void *desc_private, - int logs); - int (* fs_commit)(struct inode *inode, void *handle,int force_sync); - int (* fs_map_inode_pages)(struct inode *inode, struct page **page, - int pages, unsigned long *blocks, - int create, 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); -}; - -extern int fsfilt_register_ops(struct fsfilt_operations *fs_ops); -extern void fsfilt_unregister_ops(struct fsfilt_operations *fs_ops); -extern struct fsfilt_operations *fsfilt_get_ops(const char *type); -extern void fsfilt_put_ops(struct fsfilt_operations *fs_ops); - -static inline char *fsfilt_get_label(struct obd_device *obd, - struct super_block *sb) -{ - if (obd->obd_fsops->fs_getlabel == NULL) - return NULL; - if (obd->obd_fsops->fs_getlabel(sb)[0] == '\0') - return NULL; - - return obd->obd_fsops->fs_getlabel(sb); -} - -#define FSFILT_OP_UNLINK 1 -#define FSFILT_OP_CANCEL_UNLINK 10 - -#define __fsfilt_check_slow(obd, start, 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 + DISK_TIMEOUT * 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); \ -} while (0) - -#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, - struct inode *inode, int op, - struct obd_trans_info *oti, int logs) -{ - unsigned long now = jiffies; - void *parent_handle = oti ? oti->oti_handle : NULL; - void *handle; - - handle = obd->obd_fsops->fs_start(inode, op, 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, "journal start"); - return handle; -} - -static inline int fsfilt_commit(struct obd_device *obd, struct inode *inode, - void *handle, int force_sync) -{ - unsigned long now = jiffies; - int rc = obd->obd_fsops->fs_commit(inode, handle, force_sync); - CDEBUG(D_INFO, "committing handle %p\n", handle); - - fsfilt_check_slow(obd, now, "journal start"); - - return rc; -} - -static inline int fsfilt_read_record(struct obd_device *obd, struct file *file, - void *buf, loff_t size, loff_t *offs) -{ - return obd->obd_fsops->fs_read_record(file, buf, size, offs); -} - -static inline int fsfilt_write_record(struct obd_device *obd, struct file *file, - void *buf, loff_t size, loff_t *offs, - int force_sync) -{ - return obd->obd_fsops->fs_write_record(file, buf, size,offs,force_sync); -} - -static inline int fsfilt_setup(struct obd_device *obd, struct super_block *fs) -{ - if (obd->obd_fsops->fs_setup) - return obd->obd_fsops->fs_setup(fs); - return 0; -} - - - - -#endif |