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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>
This commit is contained in:
Manoj Naik 2006-06-09 09:34:25 -04:00 committed by Trond Myklebust
parent 361e624f6d
commit 830b8e33fe
3 changed files with 30 additions and 2 deletions
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1
fs/nfs/nfs4_fs.h
View File

@ -228,6 +228,7 @@ extern const u32 nfs4_fattr_bitmap[2];
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 *);

20
fs/nfs/nfs4proc.c
View File

@ -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;

11
fs/nfs/nfs4xdr.c
View File

@ -731,6 +731,13 @@ static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask)
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 @@ static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, uint32_t *p, struct n
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;