NFSv4: Define an fs_locations bitmap

This is (similar to getattr bitmap) but includes fs_locations and
mounted_on_fileid attributes. Use this bitmap for encoding in fs_locations
requests.
Note: We can probably do better by requesting locations as part of fsinfo
itself.

Signed-off-by: Manoj Naik <manoj@almaden.ibm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 8640607d6a00..90ee21a07b3e 100644
--- 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)
 {
@@ -3594,6 +3613,7 @@ int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
         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;