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authorDavid Teigland <teigland@redhat.com>2008-03-14 15:09:15 -0500
committerDavid Teigland <teigland@redhat.com>2008-04-21 11:22:28 -0500
commit2402211a8389282fd2942fad4511f02c0eeeffc5 (patch)
tree853e5818a29816e642689d7e793a845d2519711b /include/linux/dlm_plock.h
parentd44e0fc704143624b3e88fbf8fbcfda7a83fd299 (diff)
downloadvexpress-lsk-2402211a8389282fd2942fad4511f02c0eeeffc5.tar.gz
dlm: move plock code from gfs2
Move the code that handles cluster posix locks from gfs2 into the dlm so that it can be used by both gfs2 and ocfs2. Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'include/linux/dlm_plock.h')
-rw-r--r--include/linux/dlm_plock.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/dlm_plock.h b/include/linux/dlm_plock.h
new file mode 100644
index 00000000000..18d5fdbceb7
--- /dev/null
+++ b/include/linux/dlm_plock.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ */
+
+#ifndef __DLM_PLOCK_DOT_H__
+#define __DLM_PLOCK_DOT_H__
+
+#define DLM_PLOCK_MISC_NAME "dlm_plock"
+
+#define DLM_PLOCK_VERSION_MAJOR 1
+#define DLM_PLOCK_VERSION_MINOR 1
+#define DLM_PLOCK_VERSION_PATCH 0
+
+enum {
+ DLM_PLOCK_OP_LOCK = 1,
+ DLM_PLOCK_OP_UNLOCK,
+ DLM_PLOCK_OP_GET,
+};
+
+struct dlm_plock_info {
+ __u32 version[3];
+ __u8 optype;
+ __u8 ex;
+ __u8 wait;
+ __u8 pad;
+ __u32 pid;
+ __s32 nodeid;
+ __s32 rv;
+ __u32 fsid;
+ __u64 number;
+ __u64 start;
+ __u64 end;
+ __u64 owner;
+};
+
+#ifdef __KERNEL__
+int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ int cmd, struct file_lock *fl);
+int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl);
+int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl);
+#endif /* __KERNEL__ */
+
+#endif
+