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Subject[PATCH 2/2] locks: remove fl_copy_lock lock_manager operation
This one was only used for a nasty hack in nfsd, which has recently
been removed.

Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: linux-2.6/fs/locks.c
===================================================================
--- linux-2.6.orig/fs/locks.c 2010-10-31 07:10:07.649004084 -0400
+++ linux-2.6/fs/locks.c 2010-10-31 07:34:10.102255587 -0400
@@ -235,11 +235,8 @@ static void locks_copy_private(struct fi
fl->fl_ops->fl_copy_lock(new, fl);
new->fl_ops = fl->fl_ops;
}
- if (fl->fl_lmops) {
- if (fl->fl_lmops->fl_copy_lock)
- fl->fl_lmops->fl_copy_lock(new, fl);
+ if (fl->fl_lmops)
new->fl_lmops = fl->fl_lmops;
- }
}

/*
Index: linux-2.6/Documentation/filesystems/Locking
===================================================================
--- linux-2.6.orig/Documentation/filesystems/Locking 2010-10-31 07:34:13.269012536 -0400
+++ linux-2.6/Documentation/filesystems/Locking 2010-10-31 07:34:20.567292713 -0400
@@ -322,7 +322,6 @@ fl_release_private: yes yes
prototypes:
int (*fl_compare_owner)(struct file_lock *, struct file_lock *);
void (*fl_notify)(struct file_lock *); /* unblock callback */
- void (*fl_copy_lock)(struct file_lock *, struct file_lock *);
void (*fl_release_private)(struct file_lock *);
void (*fl_break)(struct file_lock *); /* break_lease callback */

@@ -330,7 +329,6 @@ locking rules:
BKL may block
fl_compare_owner: yes no
fl_notify: yes no
-fl_copy_lock: yes no
fl_release_private: yes yes
fl_break: yes no

Index: linux-2.6/include/linux/fs.h
===================================================================
--- linux-2.6.orig/include/linux/fs.h 2010-10-31 07:33:13.131262640 -0400
+++ linux-2.6/include/linux/fs.h 2010-10-31 07:33:25.959005833 -0400
@@ -1056,7 +1056,6 @@ struct lock_manager_operations {
int (*fl_compare_owner)(struct file_lock *, struct file_lock *);
void (*fl_notify)(struct file_lock *); /* unblock callback */
int (*fl_grant)(struct file_lock *, struct file_lock *, int);
- void (*fl_copy_lock)(struct file_lock *, struct file_lock *);
void (*fl_release_private)(struct file_lock *);
void (*fl_break)(struct file_lock *);
int (*fl_mylease)(struct file_lock *, struct file_lock *);

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