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nfsd4: set shorter timeout

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We tried to do something overly complicated with the callback rpc
timeouts here.  And they're wrong--the result is that by the time a
single callback times out, it's already too late to tell the client
(using the cb_path_down return to RENEW) that the callback is down.

Use a much shorter, simpler timeout.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
J. Bruce Fields 2009-03-05 17:18:10 -05:00
parent f64f79ea5f
commit 595947acaa
1 changed files with 7 additions and 4 deletions
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11
fs/nfsd/nfs4callback.c
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@ -358,6 +358,11 @@ static struct rpc_program cb_program = {
.pipe_dir_name = "/nfsd4_cb",
};
static int max_cb_time(void)
{
return max(NFSD_LEASE_TIME/10, (time_t)1) * HZ;
}
/* Reference counting, callback cleanup, etc., all look racy as heck.
* And why is cb_set an atomic? */
@ -366,10 +371,8 @@ static struct rpc_clnt *setup_callback_client(struct nfs4_client *clp)
struct sockaddr_in addr;
struct nfs4_callback *cb = &clp->cl_callback;
struct rpc_timeout timeparms = {
.to_initval = (NFSD_LEASE_TIME/4) * HZ,
.to_retries = 5,
.to_maxval = (NFSD_LEASE_TIME/2) * HZ,
.to_exponential = 1,
.to_initval = max_cb_time(),
.to_retries = 0,
};
struct rpc_create_args args = {
.protocol = IPPROTO_TCP,