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NFSv4: Handle NFS4ERR_GRACE when recovering an expired lease.

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If our lease expires, and the server reboots while we're recovering, we
need to be able to wait until the grace period is over.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2009-12-03 15:53:21 -05:00
parent c8b7ae3d32
commit a9ed2e2583
1 changed files with 19 additions and 7 deletions
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26
fs/nfs/nfs4proc.c
View file

@ -1488,7 +1488,7 @@ static int _nfs4_open_expired(struct nfs_open_context *ctx, struct nfs4_state *s
return ret;
}
static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)
static int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_exception exception = { };
@ -1496,10 +1496,16 @@ static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4
do {
err = _nfs4_open_expired(ctx, state);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
switch (err) {
default:
goto out;
case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
nfs4_handle_exception(server, err, &exception);
err = 0;
}
} while (exception.retry);
out:
return err;
}
@ -4049,10 +4055,16 @@ static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request
if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
return 0;
err = _nfs4_do_setlk(state, F_SETLK, request, 0);
if (err != -NFS4ERR_DELAY)
break;
nfs4_handle_exception(server, err, &exception);
switch (err) {
default:
goto out;
case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
nfs4_handle_exception(server, err, &exception);
err = 0;
}
} while (exception.retry);
out:
return err;
}