PCI: add routines for debugging and handling lost interrupts

[linux-2.6-omap-h63xx.git] / fs / nfs / proc.c

diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 03599bfe81cf878fb0a65f233b80aeb184146bb4..193465210d7cdeec5548f7fbb2fbe0ccfecf2375 100644 (file)
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -65,14 +65,20 @@ nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
 
        dprintk("%s: call getattr\n", __func__);
        nfs_fattr_init(fattr);
-       status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
+       status = rpc_call_sync(server->client, &msg, 0);
+       /* Retry with default authentication if different */
+       if (status && server->nfs_client->cl_rpcclient != server->client)
+               status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
        dprintk("%s: reply getattr: %d\n", __func__, status);
        if (status)
                return status;
        dprintk("%s: call statfs\n", __func__);
        msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS];
        msg.rpc_resp = &fsinfo;
-       status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
+       status = rpc_call_sync(server->client, &msg, 0);
+       /* Retry with default authentication if different */
+       if (status && server->nfs_client->cl_rpcclient != server->client)
+               status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
        dprintk("%s: reply statfs: %d\n", __func__, status);
        if (status)
                return status;
@@ -129,6 +135,8 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
        sattr->ia_mode &= S_IALLUGO;
 
        dprintk("NFS call  setattr\n");
+       if (sattr->ia_valid & ATTR_FILE)
+               msg.rpc_cred = nfs_file_cred(sattr->ia_file);
        nfs_fattr_init(fattr);
        status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
        if (status == 0)
@@ -598,6 +606,29 @@ nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
        return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
 }
 
+/* Helper functions for NFS lock bounds checking */
+#define NFS_LOCK32_OFFSET_MAX ((__s32)0x7fffffffUL)
+static int nfs_lock_check_bounds(const struct file_lock *fl)
+{
+       __s32 start, end;
+
+       start = (__s32)fl->fl_start;
+       if ((loff_t)start != fl->fl_start)
+               goto out_einval;
+
+       if (fl->fl_end != OFFSET_MAX) {
+               end = (__s32)fl->fl_end;
+               if ((loff_t)end != fl->fl_end)
+                       goto out_einval;
+       } else
+               end = NFS_LOCK32_OFFSET_MAX;
+
+       if (start < 0 || start > end)
+               goto out_einval;
+       return 0;
+out_einval:
+       return -EINVAL;
+}
 
 const struct nfs_rpc_ops nfs_v2_clientops = {
        .version        = 2,                   /* protocol version */
@@ -630,7 +661,6 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
        .write_setup    = nfs_proc_write_setup,
        .write_done     = nfs_write_done,
        .commit_setup   = nfs_proc_commit_setup,
-       .file_open      = nfs_open,
-       .file_release   = nfs_release,
        .lock           = nfs_proc_lock,
+       .lock_check_bounds = nfs_lock_check_bounds,
 };