Changing the grace period

[Avishay Traeger]

Hello,
I have a few questions about changing the grace period (I want to make
it shorter for testing purposes since 90 seconds is annoying).

1. Is there any way to do this without modifying the code?  From what I
can see, there isn't.

2. I looked at ways to change the lease times, because grace_time relies
on those.  In 2.6.22-rc3, in nfsctl.c line 591, it says:
extern time_t nfs4_leasetime(void);

>From what I can tell, this is a typo, and should be nfs4_lease_time
(underscore between "lease" and "time").  Correct?

3. Also, the proc file doesn't seem to be functioning properly:
[root at v4server]# echo 80 > /proc/fs/nfsd/nfsv4leasetime 
[root at v4server]# cat /proc/fs/nfsd/nfsv4leasetime 
90
In addition, nothing is printed in dmesg after the echo (probably
related to that typo?).

4. The comment in write_leasetime() says:
/* if size > 10 seconds, call
 * nfs4_reset_lease() then write out the new lease (seconds) as reply
 */
However, nfs4_reset_lease() changes the user_lease_time variable.  The
print statement calls nfs4_lease_time() which prints the lease_time
variable.  So it looks like you are changing one variable and then
printing the other.  Is this intentional?

Thanks,
Avishay