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nfsd4: properly type op_set_currentstateid callbacks

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Given the args union in struct nfsd4_op a name, and pass it to the
op_set_currentstateid callbacks instead of using unsafe function
pointer casts.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2017-05-08 20:03:15 +02:00
parent 35f297e537
commit b60e985980
4 changed files with 27 additions and 19 deletions
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12
fs/nfsd/current_stateid.h
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@ -8,10 +8,14 @@ extern void clear_current_stateid(struct nfsd4_compound_state *cstate);
/*
* functions to set current state id
*/
extern void nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *);
extern void nfsd4_set_openstateid(struct nfsd4_compound_state *, struct nfsd4_open *);
extern void nfsd4_set_lockstateid(struct nfsd4_compound_state *, struct nfsd4_lock *);
extern void nfsd4_set_closestateid(struct nfsd4_compound_state *, struct nfsd4_close *);
extern void nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *,
union nfsd4_op_u *);
extern void nfsd4_set_openstateid(struct nfsd4_compound_state *,
union nfsd4_op_u *);
extern void nfsd4_set_lockstateid(struct nfsd4_compound_state *,
union nfsd4_op_u *);
extern void nfsd4_set_closestateid(struct nfsd4_compound_state *,
union nfsd4_op_u *);
/*
* functions to consume current state id

12
fs/nfsd/nfs4proc.c
View File

@ -1525,7 +1525,6 @@ typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
void *);
typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op);
typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *);
typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *);
enum nfsd4_op_flags {
@ -1565,7 +1564,8 @@ struct nfsd4_operation {
/* Try to get response size before operation */
nfsd4op_rsize op_rsize_bop;
stateid_getter op_get_currentstateid;
stateid_setter op_set_currentstateid;
void (*op_set_currentstateid)(struct nfsd4_compound_state *,
union nfsd4_op_u *);
};
static struct nfsd4_operation nfsd4_ops[];
@ -2105,7 +2105,7 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_name = "OP_CLOSE",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
.op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
.op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
.op_set_currentstateid = nfsd4_set_closestateid,
},
[OP_COMMIT] = {
.op_func = (nfsd4op_func)nfsd4_commit,
@ -2149,7 +2149,7 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_flags = OP_MODIFIES_SOMETHING,
.op_name = "OP_LOCK",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
.op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
.op_set_currentstateid = nfsd4_set_lockstateid,
},
[OP_LOCKT] = {
.op_func = (nfsd4op_func)nfsd4_lockt,
@ -2185,7 +2185,7 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
.op_name = "OP_OPEN",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
.op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
.op_set_currentstateid = nfsd4_set_openstateid,
},
[OP_OPEN_CONFIRM] = {
.op_func = (nfsd4op_func)nfsd4_open_confirm,
@ -2199,7 +2199,7 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_name = "OP_OPEN_DOWNGRADE",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
.op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
.op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
.op_set_currentstateid = nfsd4_set_opendowngradestateid,
},
[OP_PUTFH] = {
.op_func = (nfsd4op_func)nfsd4_putfh,

20
fs/nfsd/nfs4state.c
View File

@ -7103,27 +7103,31 @@ clear_current_stateid(struct nfsd4_compound_state *cstate)
* functions to set current state id
*/
void
nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *odp)
nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate,
union nfsd4_op_u *u)
{
put_stateid(cstate, &odp->od_stateid);
put_stateid(cstate, &u->open_downgrade.od_stateid);
}
void
nfsd4_set_openstateid(struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
nfsd4_set_openstateid(struct nfsd4_compound_state *cstate,
union nfsd4_op_u *u)
{
put_stateid(cstate, &open->op_stateid);
put_stateid(cstate, &u->open.op_stateid);
}
void
nfsd4_set_closestateid(struct nfsd4_compound_state *cstate, struct nfsd4_close *close)
nfsd4_set_closestateid(struct nfsd4_compound_state *cstate,
union nfsd4_op_u *u)
{
put_stateid(cstate, &close->cl_stateid);
put_stateid(cstate, &u->close.cl_stateid);
}
void
nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate, struct nfsd4_lock *lock)
nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate,
union nfsd4_op_u *u)
{
put_stateid(cstate, &lock->lk_resp_stateid);
put_stateid(cstate, &u->lock.lk_resp_stateid);
}
/*

2
fs/nfsd/xdr4.h
View File

@ -539,7 +539,7 @@ struct nfsd4_seek {
struct nfsd4_op {
int opnum;
__be32 status;
union {
union nfsd4_op_u {
struct nfsd4_access access;
struct nfsd4_close close;
struct nfsd4_commit commit;