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NFSv4: Send RENEW requests to the server only when we're holding state

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2006-01-03 09:55:24 +01:00
parent 5043e900f5
commit 58d9714a44
5 changed files with 75 additions and 2 deletions
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9
fs/nfs/nfs4renewd.c
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@@ -54,6 +54,7 @@
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
#include "nfs4_fs.h"
#include "delegation.h"
#define NFSDBG_FACILITY NFSDBG_PROC
@@ -68,7 +69,7 @@ nfs4_renew_state(void *data)
dprintk("%s: start\n", __FUNCTION__);
/* Are there any active superblocks? */
if (list_empty(&clp->cl_superblocks))
goto out;
goto out;
spin_lock(&clp->cl_lock);
lease = clp->cl_lease_time;
last = clp->cl_last_renewal;
@@ -76,6 +77,12 @@ nfs4_renew_state(void *data)
timeout = (2 * lease) / 3 + (long)last - (long)now;
/* Are we close to a lease timeout? */
if (time_after(now, last + lease/3)) {
if (list_empty(&clp->cl_state_owners)) {
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
spin_unlock(&clp->cl_lock);
nfs_expire_all_delegations(clp);
goto out;
}
spin_unlock(&clp->cl_lock);
/* Queue an asynchronous RENEW. */
nfs4_proc_async_renew(clp);