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NFSv4: Move error handling out of the delegation generic code 

The NFSv4 delegation recovery code is required by the protocol to handle
more errors. Rather than add NFSv4.0 specific errors into 'generic'
delegation code, we should move the error handling into the NFSv4 layer.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2009-06-17 13:22:58 -07:00
parent 01c3f05228
commit d5122201a7
2 changed files with 16 additions and 17 deletions
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18
fs/nfs/delegation.c
View File

@ -68,7 +68,7 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_
{
struct inode *inode = state->inode;
struct file_lock *fl;
int status;
int status = 0;
for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) {
if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK)))
@ -76,21 +76,9 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_
if (nfs_file_open_context(fl->fl_file) != ctx)
continue;
status = nfs4_lock_delegation_recall(state, fl);
if (status >= 0)
continue;
switch (status) {
default:
printk(KERN_ERR "%s: unhandled error %d.\n",
__func__, status);
case -NFS4ERR_EXPIRED:
/* kill_proc(fl->fl_pid, SIGLOST, 1); */
case -NFS4ERR_STALE_CLIENTID:
nfs4_schedule_state_recovery(NFS_SERVER(inode)->nfs_client);
goto out_err;
}
if (status < 0)
break;
}
return 0;
out_err:
return status;
}

15
fs/nfs/nfs4proc.c
View File

@ -3630,8 +3630,19 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
goto out;
do {
err = _nfs4_do_setlk(state, F_SETLK, fl, 0);
if (err != -NFS4ERR_DELAY)
break;
switch (err) {
default:
printk(KERN_ERR "%s: unhandled error %d.\n",
__func__, err);
case 0:
goto out;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_STALE_CLIENTID:
nfs4_schedule_state_recovery(server->nfs_client);
goto out;
case -NFS4ERR_DELAY:
break;
}
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out: