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Commit 36840370 authored by Alexandros Batsakis's avatar Alexandros Batsakis Committed by Trond Myklebust
Browse files

pnfs: update nfs4_callback_recallany to handle layouts 



While here, update the code a bit.

Signed-off-by: default avatarAlexandros Batsakis <batsakis@netapp.com>
Signed-off-by: default avatarFred Isaman <iisaman@netapp.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 43f1b3da

fs/nfs/callback.h

+8 −0
Original line number Diff line number Diff line
@@ -119,6 +119,14 @@ extern int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation, 


#define RCA4_TYPE_MASK_RDATA_DLG	0

#define RCA4_TYPE_MASK_WDATA_DLG	1

#define RCA4_TYPE_MASK_DIR_DLG         2

#define RCA4_TYPE_MASK_FILE_LAYOUT     3

#define RCA4_TYPE_MASK_BLK_LAYOUT      4

#define RCA4_TYPE_MASK_OBJ_LAYOUT_MIN  8

#define RCA4_TYPE_MASK_OBJ_LAYOUT_MAX  9

#define RCA4_TYPE_MASK_OTHER_LAYOUT_MIN 12

#define RCA4_TYPE_MASK_OTHER_LAYOUT_MAX 15

#define RCA4_TYPE_MASK_ALL 0xf31f



struct cb_recallanyargs {

	struct sockaddr	*craa_addr;

fs/nfs/callback_proc.c

+26 −3
Original line number Diff line number Diff line
@@ -230,6 +230,17 @@ __be32 nfs4_callback_layoutrecall(struct cb_layoutrecallargs *args, 
	return cpu_to_be32(res);

}



static void pnfs_recall_all_layouts(struct nfs_client *clp)

{

	struct cb_layoutrecallargs args;



	/* Pretend we got a CB_LAYOUTRECALL(ALL) */

	memset(&args, 0, sizeof(args));

	args.cbl_recall_type = RETURN_ALL;

	/* FIXME we ignore errors, what should we do? */

	do_callback_layoutrecall(clp, &args);

}



int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation, const nfs4_stateid *stateid)

{

	if (delegation == NULL)
@@ -421,29 +432,41 @@ out: 
	return status;

}



static bool

validate_bitmap_values(unsigned long mask)

{

	return (mask & ~RCA4_TYPE_MASK_ALL) == 0;

}



__be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy,

			       struct cb_process_state *cps)

{

	__be32 status;

	fmode_t flags = 0;



	status = htonl(NFS4ERR_OP_NOT_IN_SESSION);

	status = cpu_to_be32(NFS4ERR_OP_NOT_IN_SESSION);

	if (!cps->clp) /* set in cb_sequence */

		goto out;



	dprintk("NFS: RECALL_ANY callback request from %s\n",

		rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));



	status = cpu_to_be32(NFS4ERR_INVAL);

	if (!validate_bitmap_values(args->craa_type_mask))

		goto out;



	status = cpu_to_be32(NFS4_OK);

	if (test_bit(RCA4_TYPE_MASK_RDATA_DLG, (const unsigned long *)

		     &args->craa_type_mask))

		flags = FMODE_READ;

	if (test_bit(RCA4_TYPE_MASK_WDATA_DLG, (const unsigned long *)

		     &args->craa_type_mask))

		flags |= FMODE_WRITE;



	if (test_bit(RCA4_TYPE_MASK_FILE_LAYOUT, (const unsigned long *)

		     &args->craa_type_mask))

		pnfs_recall_all_layouts(cps->clp);

	if (flags)

		nfs_expire_all_delegation_types(cps->clp, flags);

	status = htonl(NFS4_OK);

out:

	dprintk("%s: exit with status = %d\n", __func__, ntohl(status));

	return status;