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nfs41: cb_sequence proc implementation

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Currently, just free up any referring calls information.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: fix csr_{,target}highestslotid]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
This commit is contained in:
Benny Halevy 2009-04-01 09:23:25 -04:00
parent 2d9b9ec344
commit d49433e1e3
2 changed files with 32 additions and 0 deletions
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4
fs/nfs/callback.h
View File

@ -103,6 +103,9 @@ struct cb_sequenceres {
uint32_t csr_target_highestslotid; uint32_t csr_target_highestslotid;
}; };
extern unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
struct cb_sequenceres *res);
#endif /* CONFIG_NFS_V4_1 */ #endif /* CONFIG_NFS_V4_1 */
extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res); extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
@ -119,6 +122,7 @@ extern void nfs_callback_down(int minorversion);
* of slots for the backchannel. * of slots for the backchannel.
*/ */
#define NFS41_BC_MIN_CALLBACKS 1 #define NFS41_BC_MIN_CALLBACKS 1
#define NFS41_BC_MAX_CALLBACKS 1
extern unsigned int nfs_callback_set_tcpport; extern unsigned int nfs_callback_set_tcpport;
extern unsigned short nfs_callback_tcpport; extern unsigned short nfs_callback_tcpport;

28
fs/nfs/callback_proc.c
View File

@ -101,3 +101,31 @@ out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res)); dprintk("%s: exit with status = %d\n", __func__, ntohl(res));
return res; return res;
} }
#if defined(CONFIG_NFS_V4_1)
/* FIXME: validate args->cbs_{sequence,slot}id */
/* FIXME: referring calls should be processed */
unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
struct cb_sequenceres *res)
{
int i;
unsigned status = 0;
for (i = 0; i < args->csa_nrclists; i++)
kfree(args->csa_rclists[i].rcl_refcalls);
kfree(args->csa_rclists);
memcpy(&res->csr_sessionid, &args->csa_sessionid,
sizeof(res->csr_sessionid));
res->csr_sequenceid = args->csa_sequenceid;
res->csr_slotid = args->csa_slotid;
res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
res->csr_status = status;
return status;
}
#endif /* CONFIG_NFS_V4_1 */