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[PATCH] fcntl(F_SETSIG) fix

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fcntl(F_SETSIG) no longer works on leases because
lease_release_private_callback() gets called as the lease is copied in
order to initialise it.

The problem is that lease_alloc() performs an unnecessary initialisation,
which sets the lease_manager_ops.  Avoid the problem by allocating the
target lease structure using locks_alloc_lock().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Trond Myklebust 2006-08-14 08:54:48 -07:00 committed by Greg Kroah-Hartman
parent 1d7ea7324a
commit 74361cb682
1 changed files with 4 additions and 2 deletions
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6
fs/locks.c
View file

@ -1421,8 +1421,9 @@ static int __setlease(struct file *filp, long arg, struct file_lock **flp)
if (!leases_enable)
goto out;
error = lease_alloc(filp, arg, &fl);
if (error)
error = -ENOMEM;
fl = locks_alloc_lock();
if (fl == NULL)
goto out;
locks_copy_lock(fl, lease);
@ -1430,6 +1431,7 @@ static int __setlease(struct file *filp, long arg, struct file_lock **flp)
locks_insert_lock(before, fl);
*flp = fl;
error = 0;
out:
return error;
}