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NFSv4.1: Ensure state manager thread dies on last umount

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Currently, the state manager may continue to try recovering state forever
even after the last filesystem to reference that nfs_client has umounted.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
This commit is contained in:
Trond Myklebust 2011-04-15 17:34:18 -04:00
parent e3b2854faa
commit 47c2199b6e
1 changed files with 2 additions and 2 deletions
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4
fs/nfs/nfs4state.c
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@ -1607,7 +1607,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
int status = 0;
/* Ensure exclusive access to NFSv4 state */
for(;;) {
do {
if (test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) {
/* We're going to have to re-establish a clientid */
status = nfs4_reclaim_lease(clp);
@ -1691,7 +1691,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
break;
if (test_and_set_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) != 0)
break;
}
} while (atomic_read(&clp->cl_count) > 1);
return;
out_error:
printk(KERN_WARNING "Error: state manager failed on NFSv4 server %s"