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>
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 22a5f83..9a10286 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -228,6 +228,7 @@
extern const u32 nfs4_statfs_bitmap[2];
extern const u32 nfs4_pathconf_bitmap[2];
extern const u32 nfs4_fsinfo_bitmap[2];
+extern const u32 nfs4_fs_locations_bitmap[2];
/* nfs4renewd.c */
extern void nfs4_schedule_state_renewal(struct nfs4_client *);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 8640607..90ee21a 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -121,6 +121,25 @@
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 @@
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;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 4b6613f..646f16d 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -731,6 +731,13 @@
bitmask[1] & nfs4_fsinfo_bitmap[1]);
}
+static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask)
+{
+ return encode_getattr_two(xdr,
+ bitmask[0] & nfs4_fs_locations_bitmap[0],
+ bitmask[1] & nfs4_fs_locations_bitmap[1]);
+}
+
static int encode_getfh(struct xdr_stream *xdr)
{
uint32_t *p;
@@ -2030,10 +2037,10 @@
goto out;
if ((status = encode_lookup(&xdr, args->name)) != 0)
goto out;
- if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
+ if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0)
goto out;
/* set up reply
- * toplevel_status + taglen + rescount + OP_PUTFH + status
+ * toplevel_status + OP_PUTFH + status
* + OP_LOOKUP + status + OP_GETATTR + status = 7
*/
replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2;