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@xxxxxx>
---
fs/nfsd/current_stateid.h | 12 ++++++++----
fs/nfsd/nfs4proc.c | 12 ++++++------
fs/nfsd/nfs4state.c | 20 ++++++++++++--------
fs/nfsd/xdr4.h | 2 +-
4 files changed, 27 insertions(+), 19 deletions(-)
diff --git a/fs/nfsd/current_stateid.h b/fs/nfsd/current_stateid.h
index 4123551208d8..3c80a7b5302d 100644
--- a/fs/nfsd/current_stateid.h
+++ b/fs/nfsd/current_stateid.h
@@ -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
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 1e0387a1e32f..49640f6ffb8d 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1524,7 +1524,6 @@ 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 {
@@ -1564,7 +1563,8 @@ 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[];
@@ -2104,7 +2104,7 @@ 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,
@@ -2148,7 +2148,7 @@ 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,
@@ -2184,7 +2184,7 @@ 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,
@@ -2198,7 +2198,7 @@ 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,
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index e9ef50addddb..4cf05b59ddf6 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -7116,27 +7116,31 @@ 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);
}
/*
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index eb7f9239304f..b625f4aa1061 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -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;
--
2.11.0
--
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