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NFSv4: Don't exit the state management if there are still tasks to do

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Fix up a potential race...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2008-12-23 15:21:48 -05:00
parent e005e8041c
commit f3c76491e7
1 changed files with 6 additions and 2 deletions
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8
fs/nfs/nfs4state.c
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@ -1112,7 +1112,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
int status = 0;
/* Ensure exclusive access to NFSv4 state */
while (!list_empty(&clp->cl_superblocks)) {
for(;;) {
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);
@ -1161,7 +1161,11 @@ static void nfs4_state_manager(struct nfs_client *clp)
}
nfs4_clear_state_manager_bit(clp);
break;
/* Did we race with an attempt to give us more work? */
if (clp->cl_state == 0)
break;
if (test_and_set_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) != 0)
break;
}
return;
out_error: