[SPARC]: Constify function pointer tables.

[pandora-kernel.git] / fs / nfs / nfs4proc.c

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index cb99fd9..9e2e1c7 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -741,10 +741,10 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
        if (data->rpc_status == 0) {
                memcpy(data->o_res.stateid.data, data->c_res.stateid.data,
                                sizeof(data->o_res.stateid.data));
+               nfs_confirm_seqid(&data->owner->so_seqid, 0);
                renew_lease(data->o_res.server, data->timestamp);
                data->rpc_done = 1;
        }
-       nfs_confirm_seqid(&data->owner->so_seqid, data->rpc_status);
        nfs_increment_open_seqid(data->rpc_status, data->c_arg.seqid);
 }
 
@@ -759,7 +759,6 @@ static void nfs4_open_confirm_release(void *calldata)
        /* In case of error, no cleanup! */
        if (!data->rpc_done)
                goto out_free;
-       nfs_confirm_seqid(&data->owner->so_seqid, 0);
        state = nfs4_opendata_to_nfs4_state(data);
        if (!IS_ERR(state))
                nfs4_close_state(&data->path, state, data->o_arg.open_flags);
@@ -886,7 +885,6 @@ static void nfs4_open_release(void *calldata)
        /* In case we need an open_confirm, no cleanup! */
        if (data->o_res.rflags & NFS4_OPEN_RESULT_CONFIRM)
                goto out_free;
-       nfs_confirm_seqid(&data->owner->so_seqid, 0);
        state = nfs4_opendata_to_nfs4_state(data);
        if (!IS_ERR(state))
                nfs4_close_state(&data->path, state, data->o_arg.open_flags);
@@ -1305,7 +1303,7 @@ static const struct rpc_call_ops nfs4_close_ops = {
  *
  * NOTE: Caller must be holding the sp->so_owner semaphore!
  */
-int nfs4_do_close(struct path *path, struct nfs4_state *state)
+int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
 {
        struct nfs_server *server = NFS_SERVER(state->inode);
        struct nfs4_closedata *calldata;
@@ -1333,8 +1331,11 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state)
        task = rpc_run_task(server->client, RPC_TASK_ASYNC, &nfs4_close_ops, calldata);
        if (IS_ERR(task))
                return PTR_ERR(task);
+       status = 0;
+       if (wait)
+               status = rpc_wait_for_completion_task(task);
        rpc_put_task(task);
-       return 0;
+       return status;
 out_free_calldata:
        kfree(calldata);
 out:
@@ -1365,13 +1366,14 @@ static int nfs4_intent_set_file(struct nameidata *nd, struct path *path, struct
        }
        ret = PTR_ERR(filp);
 out_close:
-       nfs4_close_state(path, state, nd->intent.open.flags);
+       nfs4_close_sync(path, state, nd->intent.open.flags);
        return ret;
 }
 
 struct dentry *
 nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
+       struct dentry *parent;
        struct path path = {
                .mnt = nd->mnt,
                .dentry = dentry,
@@ -1394,6 +1396,9 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
        cred = rpcauth_lookupcred(NFS_CLIENT(dir)->cl_auth, 0);
        if (IS_ERR(cred))
                return (struct dentry *)cred;
+       parent = dentry->d_parent;
+       /* Protect against concurrent sillydeletes */
+       nfs_block_sillyrename(parent);
        state = nfs4_do_open(dir, &path, nd->intent.open.flags, &attr, cred);
        put_rpccred(cred);
        if (IS_ERR(state)) {
@@ -1401,12 +1406,14 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
                        d_add(dentry, NULL);
                        nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
                }
+               nfs_unblock_sillyrename(parent);
                return (struct dentry *)state;
        }
        res = d_add_unique(dentry, igrab(state->inode));
        if (res != NULL)
                path.dentry = res;
        nfs_set_verifier(path.dentry, nfs_save_change_attribute(dir));
+       nfs_unblock_sillyrename(parent);
        nfs4_intent_set_file(nd, &path, state);
        return res;
 }
@@ -1444,7 +1451,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
                nfs4_intent_set_file(nd, &path, state);
                return 1;
        }
-       nfs4_close_state(&path, state, openflags);
+       nfs4_close_sync(&path, state, openflags);
 out_drop:
        d_drop(dentry);
        return 0;
@@ -1898,7 +1905,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
        if (status == 0 && (nd->flags & LOOKUP_OPEN) != 0)
                status = nfs4_intent_set_file(nd, &path, state);
        else
-               nfs4_close_state(&path, state, flags);
+               nfs4_close_sync(&path, state, flags);
 out:
        return status;
 }
@@ -3324,6 +3331,12 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
 
        p->arg.fh = NFS_FH(inode);
        p->arg.fl = &p->fl;
+       if (!(lsp->ls_seqid.flags & NFS_SEQID_CONFIRMED)) {
+               p->arg.open_seqid = nfs_alloc_seqid(&lsp->ls_state->owner->so_seqid);
+               if (p->arg.open_seqid == NULL)
+                       goto out_free;
+
+       }
        p->arg.lock_seqid = nfs_alloc_seqid(&lsp->ls_seqid);
        if (p->arg.lock_seqid == NULL)
                goto out_free;
@@ -3336,6 +3349,8 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
        memcpy(&p->fl, fl, sizeof(p->fl));
        return p;
 out_free:
+       if (p->arg.open_seqid != NULL)
+               nfs_free_seqid(p->arg.open_seqid);
        kfree(p);
        return NULL;
 }
@@ -3352,23 +3367,23 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
                .rpc_cred = sp->so_cred,
        };
 
-       if (nfs_wait_on_sequence(data->arg.lock_seqid, task) != 0)
-               return;
        dprintk("%s: begin!\n", __FUNCTION__);
        /* Do we need to do an open_to_lock_owner? */
        if (!(data->arg.lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)) {
-               data->arg.open_seqid = nfs_alloc_seqid(&sp->so_seqid);
-               if (data->arg.open_seqid == NULL) {
-                       data->rpc_status = -ENOMEM;
-                       task->tk_action = NULL;
-                       goto out;
-               }
+               if (nfs_wait_on_sequence(data->arg.open_seqid, task) != 0)
+                       return;
                data->arg.open_stateid = &state->stateid;
                data->arg.new_lock_owner = 1;
+               /* Retest in case we raced... */
+               if (!(data->arg.lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED))
+                       goto do_rpc;
        }
+       if (nfs_wait_on_sequence(data->arg.lock_seqid, task) != 0)
+               return;
+       data->arg.new_lock_owner = 0;
+do_rpc:        
        data->timestamp = jiffies;
        rpc_call_setup(task, &msg, 0);
-out:
        dprintk("%s: done!, ret = %d\n", __FUNCTION__, data->rpc_status);
 }
 
@@ -3404,8 +3419,6 @@ static void nfs4_lock_release(void *calldata)
        struct nfs4_lockdata *data = calldata;
 
        dprintk("%s: begin!\n", __FUNCTION__);
-       if (data->arg.open_seqid != NULL)
-               nfs_free_seqid(data->arg.open_seqid);
        if (data->cancelled != 0) {
                struct rpc_task *task;
                task = nfs4_do_unlck(&data->fl, data->ctx, data->lsp,
@@ -3415,6 +3428,8 @@ static void nfs4_lock_release(void *calldata)
                dprintk("%s: cancelling lock!\n", __FUNCTION__);
        } else
                nfs_free_seqid(data->arg.lock_seqid);
+       if (data->arg.open_seqid != NULL)
+               nfs_free_seqid(data->arg.open_seqid);
        nfs4_put_lock_state(data->lsp);
        put_nfs_open_context(data->ctx);
        kfree(data);