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NFSv4.x/pnfs: Don't try to recover stateids twice in layoutget

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If the current open or layout stateid doesn't match the stateid used
in the layoutget RPC call, then don't try to recover it.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2015-09-20 13:30:30 -04:00
parent 24311f8841
commit 2259f960b3
1 changed files with 17 additions and 11 deletions
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28
fs/nfs/nfs4proc.c
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@ -7813,20 +7813,23 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
dprintk("%s: NFS4ERR_RECALLCONFLICT waiting %lu\n",
__func__, delay);
rpc_delay(task, delay);
task->tk_status = 0;
rpc_restart_call_prepare(task);
goto out; /* Do not call nfs4_async_handle_error() */
/* Do not call nfs4_async_handle_error() */
goto out_restart;
}
break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_BAD_STATEID:
spin_lock(&inode->i_lock);
lo = NFS_I(inode)->layout;
if (!lo || list_empty(&lo->plh_segs)) {
if (nfs4_stateid_match(&lgp->args.stateid,
&lgp->args.ctx->state->stateid)) {
spin_unlock(&inode->i_lock);
/* If the open stateid was bad, then recover it. */
state = lgp->args.ctx->state;
} else {
break;
}
lo = NFS_I(inode)->layout;
if (lo && nfs4_stateid_match(&lgp->args.stateid,
&lo->plh_stateid)) {
LIST_HEAD(head);
/*
@ -7837,16 +7840,19 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
pnfs_mark_matching_lsegs_invalid(lo, &head, NULL);
spin_unlock(&inode->i_lock);
pnfs_free_lseg_list(&head);
task->tk_status = 0;
rpc_restart_call_prepare(task);
}
} else
spin_unlock(&inode->i_lock);
goto out_restart;
}
if (nfs4_async_handle_error(task, server, state, NULL) == -EAGAIN)
rpc_restart_call_prepare(task);
goto out_restart;
out:
dprintk("<-- %s\n", __func__);
return;
out_restart:
task->tk_status = 0;
rpc_restart_call_prepare(task);
return;
out_overflow:
task->tk_status = -EOVERFLOW;
goto out;