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authorZheng Da <zhengda1936@gmail.com>2009-12-06 05:26:23 +0100
committerZheng Da <zhengda1936@gmail.com>2009-12-06 05:26:23 +0100
commit8a6d48c0542876eb3acfc0970c0ab7872db08d5f (patch)
tree496e78bc728317ea779781b92f897d16936ee231 /libdde_linux26/contrib/include/linux/raid/md.h
parentb4bffcfcdf3ab7a55d664e9aa5907f88da503f38 (diff)
check in the original version of dde linux26.
Diffstat (limited to 'libdde_linux26/contrib/include/linux/raid/md.h')
-rw-r--r--libdde_linux26/contrib/include/linux/raid/md.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/libdde_linux26/contrib/include/linux/raid/md.h b/libdde_linux26/contrib/include/linux/raid/md.h
new file mode 100644
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--- /dev/null
+++ b/libdde_linux26/contrib/include/linux/raid/md.h
@@ -0,0 +1,81 @@
+/*
+ md.h : Multiple Devices driver for Linux
+ Copyright (C) 1996-98 Ingo Molnar, Gadi Oxman
+ Copyright (C) 1994-96 Marc ZYNGIER
+ <zyngier@ufr-info-p7.ibp.fr> or
+ <maz@gloups.fdn.fr>
+
+ 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, or (at your option)
+ any later version.
+
+ You should have received a copy of the GNU General Public License
+ (for example /usr/src/linux/COPYING); if not, write to the Free
+ Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef _MD_H
+#define _MD_H
+
+#include <linux/blkdev.h>
+#include <linux/seq_file.h>
+
+/*
+ * 'md_p.h' holds the 'physical' layout of RAID devices
+ * 'md_u.h' holds the user <=> kernel API
+ *
+ * 'md_k.h' holds kernel internal definitions
+ */
+
+#include <linux/raid/md_p.h>
+#include <linux/raid/md_u.h>
+#include <linux/raid/md_k.h>
+
+#ifdef CONFIG_MD
+
+/*
+ * Different major versions are not compatible.
+ * Different minor versions are only downward compatible.
+ * Different patchlevel versions are downward and upward compatible.
+ */
+#define MD_MAJOR_VERSION 0
+#define MD_MINOR_VERSION 90
+/*
+ * MD_PATCHLEVEL_VERSION indicates kernel functionality.
+ * >=1 means different superblock formats are selectable using SET_ARRAY_INFO
+ * and major_version/minor_version accordingly
+ * >=2 means that Internal bitmaps are supported by setting MD_SB_BITMAP_PRESENT
+ * in the super status byte
+ * >=3 means that bitmap superblock version 4 is supported, which uses
+ * little-ending representation rather than host-endian
+ */
+#define MD_PATCHLEVEL_VERSION 3
+
+extern int mdp_major;
+
+extern int register_md_personality(struct mdk_personality *p);
+extern int unregister_md_personality(struct mdk_personality *p);
+extern mdk_thread_t * md_register_thread(void (*run) (mddev_t *mddev),
+ mddev_t *mddev, const char *name);
+extern void md_unregister_thread(mdk_thread_t *thread);
+extern void md_wakeup_thread(mdk_thread_t *thread);
+extern void md_check_recovery(mddev_t *mddev);
+extern void md_write_start(mddev_t *mddev, struct bio *bi);
+extern void md_write_end(mddev_t *mddev);
+extern void md_done_sync(mddev_t *mddev, int blocks, int ok);
+extern void md_error(mddev_t *mddev, mdk_rdev_t *rdev);
+
+extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,
+ sector_t sector, int size, struct page *page);
+extern void md_super_wait(mddev_t *mddev);
+extern int sync_page_io(struct block_device *bdev, sector_t sector, int size,
+ struct page *page, int rw);
+extern void md_do_sync(mddev_t *mddev);
+extern void md_new_event(mddev_t *mddev);
+extern int md_allow_write(mddev_t *mddev);
+extern void md_wait_for_blocked_rdev(mdk_rdev_t *rdev, mddev_t *mddev);
+
+#endif /* CONFIG_MD */
+#endif
+