knfsd: nfsd4: don't delegate files that have had conflicts

[safe/jmp/linux-2.6] / fs / nfsd / nfs4state.c

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 4624988..e4a4c87 100644 (file)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -195,6 +195,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
        struct nfs4_callback *cb = &stp->st_stateowner->so_client->cl_callback;
 
        dprintk("NFSD alloc_init_deleg\n");
+       if (fp->fi_had_conflict)
+               return NULL;
        if (num_delegations > max_delegations)
                return NULL;
        dp = kmem_cache_alloc(deleg_slab, GFP_KERNEL);
@@ -1002,6 +1004,7 @@ alloc_init_file(struct inode *ino)
                list_add(&fp->fi_hash, &file_hashtbl[hashval]);
                fp->fi_inode = igrab(ino);
                fp->fi_id = current_fileid++;
+               fp->fi_had_conflict = false;
                return fp;
        }
        return NULL;
@@ -1328,6 +1331,7 @@ do_recall(void *__dp)
 {
        struct nfs4_delegation *dp = __dp;
 
+       dp->dl_file->fi_had_conflict = true;
        nfsd4_cb_recall(dp);
        return 0;
 }