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From devnull@lkml.org Thu Apr 25 00:00:10 2024 Received: from vger.kernel.org (vger.kernel.org [209.116.70.75]) by kylie.puddingonline.com (8.11.6/8.11.6) with ESMTP id g9AKcmU05266 for ; Thu, 10 Oct 2002 22:38:48 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 10 Oct 2002 16:15:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 10 Oct 2002 16:15:26 -0400 Received: from mg03.austin.ibm.com ([192.35.232.20]:25055 "EHLO mg03.austin.ibm.com") by vger.kernel.org with ESMTP id ; Thu, 10 Oct 2002 16:05:42 -0400 Received: from austin.ibm.com (netmail1.austin.ibm.com [9.3.7.138]) by mg03.austin.ibm.com (AIX4.3/8.9.3/8.9.3) with ESMTP id PAA09664; Thu, 10 Oct 2002 15:03:43 -0500 Received: from popmail.austin.ibm.com (popmail.austin.ibm.com [9.53.247.178]) by austin.ibm.com (AIX4.3/8.9.3/8.9.3) with ESMTP id PAA79600; Thu, 10 Oct 2002 15:11:26 -0500 Received: from boiler (boiler.austin.ibm.com [9.53.216.230]) by popmail.austin.ibm.com (AIX4.3/8.9.3/8.7-client1.01) with SMTP id PAA05234; Thu, 10 Oct 2002 15:11:26 -0500 Content-Type: text/plain; charset="iso-8859-1" From: Kevin Corry Organization: IBM To: torvalds@transmeta.com Subject: [PATCH] EVMS core (5/9) evms_core.h Date: Thu, 10 Oct 2002 14:37:22 -0500 X-Mailer: KMail [version 1.2] Cc: linux-kernel@vger.kernel.org, evms-devel@lists.sourceforge.net References: <02101014305502.17770@boiler> In-Reply-To: <02101014305502.17770@boiler> Mime-Version: 1.0 Message-Id: <02101014372207.17770@boiler> Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org Greetings, Part 5 of the EVMS core driver. This is a private header file for the various files that make up the core driver. Kevin Corry corryk@us.ibm.com http://evms.sourceforge.net/ diff -Naur linux-2.5.41/drivers/evms/core/evms_core.h linux-2.5.41-evms/drivers/evms/core/evms_core.h --- linux-2.5.41/drivers/evms/core/evms_core.h Wed Dec 31 18:00:00 1969 +++ linux-2.5.41-evms/drivers/evms/core/evms_core.h Thu Oct 10 11:16:58 2002 @@ -0,0 +1,95 @@ +/* + * Copyright (c) International Business Machines Corp., 2000 - 2002 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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 for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __EVMS_CORE_H__ +#define __EVMS_CORE_H__ + +#define LOG_PREFIX + +//#define VFS_PATCH_PRESENT + +/** + * struct evms_io_notify - IO callback hook structure + * @rsector: + * @b_private: + * @private: + * @bio: + * @callback_function: + * @flags: + * @bdev: + * + * IO notification structure used to track each IO callback hook. + **/ +struct evms_io_notify { + u64 rsector; + void *b_private; + void *private; + struct bio *bio; + void (*callback_function)(void *private, + struct bio * bio, int *redrive); + unsigned int flags; + struct block_device *bdev; +}; +/** + * field evms_io_notify.flags defines + **/ +#define EVMS_ORIGINAL_CALLBACK_FLAG (1<<0) + +/** + * struct evms_kevent + * @uevent + * @list + */ +struct evms_kevent { + struct evms_event uevent; + struct list_head list; +}; + +/* Global data shared among the core files. */ +extern struct list_head evms_logical_volumes; +extern struct list_head evms_notify_list; +extern struct list_head evms_fbottom_list; +extern struct list_head plugin_head; +extern spinlock_t plugin_lock; +extern mempool_t *evms_io_notify_pool; +extern struct proc_dir_entry *evms_proc_dir; +extern struct block_device_operations evms_fops; +extern devfs_handle_t evms_dir_devfs_handle; +extern int evms_volumes; + +/* Functions shared among the core files. */ +extern struct evms_logical_volume * lookup_volume(int minor); +extern struct evms_logical_volume * find_next_volume(struct evms_logical_volume *lv); +extern struct evms_logical_volume * find_next_volume_safe(struct evms_logical_volume **next_lv); +extern int evms_discover_volumes(struct evms_rediscover_pkt *); +extern void evms_discover_logical_disks(struct list_head *); +extern int evms_quiesce_volume(struct evms_logical_volume *volume, + int command, int minor, int lock_vfs); +extern int evms_make_request_fn(request_queue_t * q, struct bio *bio); +extern int is_busy(kdev_t dev); + +/* If the VFS-lock patch has not been applied, need to declare empty + * inline functions for fsync_dev_lockfs() and unlockfs(). + */ +#ifndef VFS_PATCH_PRESENT +static inline int fsync_dev_lockfs(kdev_t dev) { return 0; } +static inline void unlockfs(kdev_t dev) { } +#endif + +#endif + ˜A8qh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/