NFSv4: Define an fs_locations bitmap

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

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d86c0db7b1e82a03bd003bc54aca52385e2c1bb7..90ee21a07b3eda2d42c9f950c6c91fe32dfeab5b 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -121,6 +121,25 @@ const u32 nfs4_fsinfo_bitmap[2] = { FATTR4_WORD0_MAXFILESIZE
                        0
 };
 
+const u32 nfs4_fs_locations_bitmap[2] = {
+       FATTR4_WORD0_TYPE
+       | FATTR4_WORD0_CHANGE
+       | FATTR4_WORD0_SIZE
+       | FATTR4_WORD0_FSID
+       | FATTR4_WORD0_FILEID
+       | FATTR4_WORD0_FS_LOCATIONS,
+       FATTR4_WORD1_MODE
+       | FATTR4_WORD1_NUMLINKS
+       | FATTR4_WORD1_OWNER
+       | FATTR4_WORD1_OWNER_GROUP
+       | FATTR4_WORD1_RAWDEV
+       | FATTR4_WORD1_SPACE_USED
+       | FATTR4_WORD1_TIME_ACCESS
+       | FATTR4_WORD1_TIME_METADATA
+       | FATTR4_WORD1_TIME_MODIFY
+       | FATTR4_WORD1_MOUNTED_ON_FILEID
+};
+
 static void nfs4_setup_readdir(u64 cookie, u32 *verifier, struct dentry *dentry,
                struct nfs4_readdir_arg *readdir)
 {
@@ -185,15 +204,15 @@ static void renew_lease(const struct nfs_server *server, unsigned long timestamp
        spin_unlock(&clp->cl_lock);
 }
 
-static void update_changeattr(struct inode *inode, struct nfs4_change_info *cinfo)
+static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
 {
-       struct nfs_inode *nfsi = NFS_I(inode);
+       struct nfs_inode *nfsi = NFS_I(dir);
 
-       spin_lock(&inode->i_lock);
-       nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
+       spin_lock(&dir->i_lock);
+       nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA;
        if (cinfo->before == nfsi->change_attr && cinfo->atomic)
                nfsi->change_attr = cinfo->after;
-       spin_unlock(&inode->i_lock);
+       spin_unlock(&dir->i_lock);
 }
 
 struct nfs4_opendata {
@@ -1331,7 +1350,7 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
        return status;
 }
 
-static int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
+int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
 {
        struct nfs4_exception exception = { };
        int err;
@@ -2008,7 +2027,7 @@ static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *
        if (!status) {
                update_changeattr(dir, &res.cinfo);
                nfs_post_op_update_inode(dir, res.dir_attr);
-               nfs_refresh_inode(inode, res.fattr);
+               nfs_post_op_update_inode(inode, res.fattr);
        }
 
        return status;
@@ -3570,6 +3589,36 @@ ssize_t nfs4_listxattr(struct dentry *dentry, char *buf, size_t buflen)
        return len;
 }
 
+int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
+               struct nfs4_fs_locations *fs_locations, struct page *page)
+{
+       struct nfs_server *server = NFS_SERVER(dir);
+       u32 bitmask[2] = {
+               [0] = FATTR4_WORD0_FSID | FATTR4_WORD0_FS_LOCATIONS,
+               [1] = FATTR4_WORD1_MOUNTED_ON_FILEID,
+       };
+       struct nfs4_fs_locations_arg args = {
+               .dir_fh = NFS_FH(dir),
+               .name = &dentry->d_name,
+               .page = page,
+               .bitmask = bitmask,
+       };
+       struct rpc_message msg = {
+               .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_FS_LOCATIONS],
+               .rpc_argp = &args,
+               .rpc_resp = fs_locations,
+       };
+       int status;
+
+       dprintk("%s: start\n", __FUNCTION__);
+       fs_locations->fattr.valid = 0;
+       fs_locations->server = server;
+       fs_locations->nlocations = 0;
+       status = rpc_call_sync(server->client, &msg, 0);
+       dprintk("%s: returned status = %d\n", __FUNCTION__, status);
+       return status;
+}
+
 struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops = {
        .recover_open   = nfs4_open_reclaim,
        .recover_lock   = nfs4_lock_reclaim,