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
-
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This archive was generated by hypermail 2b29 : Tue Oct 15 2002 - 22:00:38 EST