NFSv4: Handle NFS4ERR_DELAY and NFS4ERR_GRACE in nfs4_open_delegation_recall

[karo-tx-linux.git] / fs / nfs / nfs4proc.c

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b2671cb0f901b8e904ee4b91961d2029e12fb2dc..c7856a1cef0698fa40e1643737bb8964aa4eaf6f 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1046,6 +1046,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
                /* Save the delegation */
                nfs4_stateid_copy(&stateid, &delegation->stateid);
                rcu_read_unlock();
+               nfs_release_seqid(opendata->o_arg.seqid);
                ret = nfs_may_open(state->inode, state->owner->so_cred, open_mode);
                if (ret != 0)
                        goto out;
@@ -1379,6 +1380,12 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
                        case -ENOMEM:
                                err = 0;
                                goto out;
+                       case -NFS4ERR_DELAY:
+                       case -NFS4ERR_GRACE:
+                               set_bit(NFS_DELEGATED_STATE, &state->flags);
+                               ssleep(1);
+                               err = -EAGAIN;
+                               goto out;
                }
                set_bit(NFS_DELEGATED_STATE, &state->flags);
                err = nfs4_handle_exception(server, err, &exception);
@@ -2632,7 +2639,7 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
        int status;
 
        if (pnfs_ld_layoutret_on_setattr(inode))
-               pnfs_return_layout(inode);
+               pnfs_commit_and_return_layout(inode);
 
        nfs_fattr_init(fattr);
        
@@ -5024,6 +5031,12 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
                                nfs4_schedule_stateid_recovery(server, state);
                                err = 0;
                                goto out;
+                       case -NFS4ERR_DELAY:
+                       case -NFS4ERR_GRACE:
+                               set_bit(NFS_DELEGATED_STATE, &state->flags);
+                               ssleep(1);
+                               err = -EAGAIN;
+                               goto out;
                        case -ENOMEM:
                        case -NFS4ERR_DENIED:
                                /* kill_proc(fl->fl_pid, SIGLOST, 1); */
@@ -6416,22 +6429,8 @@ nfs4_layoutcommit_done(struct rpc_task *task, void *calldata)
 static void nfs4_layoutcommit_release(void *calldata)
 {
        struct nfs4_layoutcommit_data *data = calldata;
-       struct pnfs_layout_segment *lseg, *tmp;
-       unsigned long *bitlock = &NFS_I(data->args.inode)->flags;
 
        pnfs_cleanup_layoutcommit(data);
-       /* Matched by references in pnfs_set_layoutcommit */
-       list_for_each_entry_safe(lseg, tmp, &data->lseg_list, pls_lc_list) {
-               list_del_init(&lseg->pls_lc_list);
-               if (test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT,
-                                      &lseg->pls_flags))
-                       pnfs_put_lseg(lseg);
-       }
-
-       clear_bit_unlock(NFS_INO_LAYOUTCOMMITTING, bitlock);
-       smp_mb__after_clear_bit();
-       wake_up_bit(bitlock, NFS_INO_LAYOUTCOMMITTING);
-
        put_rpccred(data->cred);
        kfree(data);
 }