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NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.

Browse source 
SUNRPC has two sorts of credentials, both of which appear as
"struct rpc_cred".
There are "generic credentials" which are supplied by clients
such as NFS and passed in 'struct rpc_message' to indicate
which user should be used to authorize the request, and there
are low-level credentials such as AUTH_NULL, AUTH_UNIX, AUTH_GSS
which describe the credential to be sent over the wires.

This patch replaces all the generic credentials by 'struct cred'
pointers - the credential structure used throughout Linux.

For machine credentials, there is a special 'struct cred *' pointer
which is statically allocated and recognized where needed as
having a special meaning.  A look-up of a low-level cred will
map this to a machine credential.

Signed-off-by: NeilBrown <neilb@suse.com>
Acked-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
NeilBrown 2018-12-03 11:30:31 +11:00 committed by Anna Schumaker
parent 684f39b4cf
commit a52458b48a
33 changed files with 261 additions and 343 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

6
fs/lockd/clntproc.c
View file

@ -256,7 +256,7 @@ static int nlm_wait_on_grace(wait_queue_head_t *queue)
* Generic NLM call
*/
static int
nlmclnt_call(struct rpc_cred *cred, struct nlm_rqst *req, u32 proc)
nlmclnt_call(const struct cred *cred, struct nlm_rqst *req, u32 proc)
{
struct nlm_host *host = req->a_host;
struct rpc_clnt *clnt;
@ -401,7 +401,7 @@ int nlm_async_reply(struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *t
* completion in order to be able to correctly track the lock
* state.
*/
static int nlmclnt_async_call(struct rpc_cred *cred, struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops)
static int nlmclnt_async_call(const struct cred *cred, struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops)
{
struct rpc_message msg = {
.rpc_argp = &req->a_args,
@ -510,7 +510,7 @@ static int do_vfs_lock(struct file_lock *fl)
static int
nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
{
struct rpc_cred *cred = nfs_file_cred(fl->fl_file);
const struct cred *cred = nfs_file_cred(fl->fl_file);
struct nlm_host *host = req->a_host;
struct nlm_res *resp = &req->a_res;
struct nlm_wait *block = NULL;

2
fs/nfs/blocklayout/blocklayout.c
View file

@ -584,7 +584,7 @@ static int decode_sector_number(__be32 **rp, sector_t *sp)
static struct nfs4_deviceid_node *
bl_find_get_deviceid(struct nfs_server *server,
const struct nfs4_deviceid *id, struct rpc_cred *cred,
const struct nfs4_deviceid *id, const struct cred *cred,
gfp_t gfp_mask)
{
struct nfs4_deviceid_node *node;

28
fs/nfs/delegation.c
View file

@ -26,10 +26,8 @@
static void nfs_free_delegation(struct nfs_delegation *delegation)
{
if (delegation->cred) {
put_rpccred(delegation->cred);
delegation->cred = NULL;
}
put_cred(delegation->cred);
delegation->cred = NULL;
kfree_rcu(delegation, rcu);
}
@ -178,13 +176,13 @@ static int nfs_delegation_claim_opens(struct inode *inode,
* @pagemod_limit: write delegation "space_limit"
*
*/
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred,
void nfs_inode_reclaim_delegation(struct inode *inode, const struct cred *cred,
fmode_t type,
const nfs4_stateid *stateid,
unsigned long pagemod_limit)
{
struct nfs_delegation *delegation;
struct rpc_cred *oldcred = NULL;
const struct cred *oldcred = NULL;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
@ -195,12 +193,12 @@ void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred,
delegation->type = type;
delegation->pagemod_limit = pagemod_limit;
oldcred = delegation->cred;
delegation->cred = get_rpccred(cred);
delegation->cred = get_cred(cred);
clear_bit(NFS_DELEGATION_NEED_RECLAIM,
&delegation->flags);
spin_unlock(&delegation->lock);
rcu_read_unlock();
put_rpccred(oldcred);
put_cred(oldcred);
trace_nfs4_reclaim_delegation(inode, type);
return;
}
@ -341,7 +339,7 @@ nfs_update_inplace_delegation(struct nfs_delegation *delegation,
*
* Returns zero on success, or a negative errno value.
*/
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred,
int nfs_inode_set_delegation(struct inode *inode, const struct cred *cred,
fmode_t type,
const nfs4_stateid *stateid,
unsigned long pagemod_limit)
@ -360,7 +358,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred,
delegation->type = type;
delegation->pagemod_limit = pagemod_limit;
delegation->change_attr = inode_peek_iversion_raw(inode);
delegation->cred = get_rpccred(cred);
delegation->cred = get_cred(cred);
delegation->inode = inode;
delegation->flags = 1<<NFS_DELEGATION_REFERENCED;
spin_lock_init(&delegation->lock);
@ -1047,7 +1045,7 @@ void nfs_reap_expired_delegations(struct nfs_client *clp)
struct nfs_delegation *delegation;
struct nfs_server *server;
struct inode *inode;
struct rpc_cred *cred;
const struct cred *cred;
nfs4_stateid stateid;
restart:
@ -1069,7 +1067,7 @@ void nfs_reap_expired_delegations(struct nfs_client *clp)
nfs_sb_deactive(server->super);
goto restart;
}
cred = get_rpccred_rcu(delegation->cred);
cred = get_cred_rcu(delegation->cred);
nfs4_stateid_copy(&stateid, &delegation->stateid);
clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags);
rcu_read_unlock();
@ -1078,7 +1076,7 @@ void nfs_reap_expired_delegations(struct nfs_client *clp)
nfs_revoke_delegation(inode, &stateid);
nfs_inode_find_state_and_recover(inode, &stateid);
}
put_rpccred(cred);
put_cred(cred);
if (nfs4_server_rebooted(clp)) {
nfs_inode_mark_test_expired_delegation(server,inode);
iput(inode);
@ -1173,7 +1171,7 @@ bool nfs4_refresh_delegation_stateid(nfs4_stateid *dst, struct inode *inode)
* otherwise "false" is returned.
*/
bool nfs4_copy_delegation_stateid(struct inode *inode, fmode_t flags,
nfs4_stateid *dst, struct rpc_cred **cred)
nfs4_stateid *dst, const struct cred **cred)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_delegation *delegation;
@ -1187,7 +1185,7 @@ bool nfs4_copy_delegation_stateid(struct inode *inode, fmode_t flags,
nfs4_stateid_copy(dst, &delegation->stateid);
nfs_mark_delegation_referenced(delegation);
if (cred)
*cred = get_rpccred(delegation->cred);
*cred = get_cred(delegation->cred);
}
rcu_read_unlock();
return ret;

10
fs/nfs/delegation.h
View file

@ -15,7 +15,7 @@
*/
struct nfs_delegation {
struct list_head super_list;
struct rpc_cred *cred;
const struct cred *cred;
struct inode *inode;
nfs4_stateid stateid;
fmode_t type;
@ -36,9 +36,9 @@ enum {
NFS_DELEGATION_TEST_EXPIRED,
};
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred,
int nfs_inode_set_delegation(struct inode *inode, const struct cred *cred,
fmode_t type, const nfs4_stateid *stateid, unsigned long pagemod_limit);
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred,
void nfs_inode_reclaim_delegation(struct inode *inode, const struct cred *cred,
fmode_t type, const nfs4_stateid *stateid, unsigned long pagemod_limit);
int nfs4_inode_return_delegation(struct inode *inode);
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
@ -60,10 +60,10 @@ void nfs_mark_test_expired_all_delegations(struct nfs_client *clp);
void nfs_reap_expired_delegations(struct nfs_client *clp);
/* NFSv4 delegation-related procedures */
int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync);
int nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred, const nfs4_stateid *stateid, int issync);
int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid, fmode_t type);
int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state, const nfs4_stateid *stateid);
bool nfs4_copy_delegation_stateid(struct inode *inode, fmode_t flags, nfs4_stateid *dst, struct rpc_cred **cred);
bool nfs4_copy_delegation_stateid(struct inode *inode, fmode_t flags, nfs4_stateid *dst, const struct cred **cred);
bool nfs4_refresh_delegation_stateid(nfs4_stateid *dst, struct inode *inode);
void nfs_mark_delegation_referenced(struct nfs_delegation *delegation);

33
fs/nfs/flexfilelayout/flexfilelayout.c
View file

@ -224,16 +224,14 @@ static struct nfs4_ff_layout_mirror *ff_layout_alloc_mirror(gfp_t gfp_flags)
static void ff_layout_free_mirror(struct nfs4_ff_layout_mirror *mirror)
{
struct rpc_cred *cred;
const struct cred *cred;
ff_layout_remove_mirror(mirror);
kfree(mirror->fh_versions);
cred = rcu_access_pointer(mirror->ro_cred);
if (cred)
put_rpccred(cred);
put_cred(cred);
cred = rcu_access_pointer(mirror->rw_cred);
if (cred)
put_rpccred(cred);
put_cred(cred);
nfs4_ff_layout_put_deviceid(mirror->mirror_ds);
kfree(mirror);
}
@ -411,9 +409,8 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
for (i = 0; i < fls->mirror_array_cnt; i++) {
struct nfs4_ff_layout_mirror *mirror;
struct auth_cred acred = {};
struct rpc_cred __rcu *cred;
struct cred *kcred;
const struct cred *cred;
kuid_t uid;
kgid_t gid;
u32 ds_count, fh_count, id;
@ -504,15 +501,7 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
goto out_err_free;
kcred->fsuid = uid;
kcred->fsgid = gid;
acred.cred = kcred;
/* find the cred for it */
rcu_assign_pointer(cred, rpc_lookup_generic_cred(&acred, 0, gfp_flags));
put_cred(kcred);
if (IS_ERR(cred)) {
rc = PTR_ERR(cred);
goto out_err_free;
}
cred = kcred;
if (lgr->range.iomode == IOMODE_READ)
rcu_assign_pointer(fls->mirror_array[i]->ro_cred, cred);
@ -1714,7 +1703,7 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr)
struct pnfs_layout_segment *lseg = hdr->lseg;
struct nfs4_pnfs_ds *ds;
struct rpc_clnt *ds_clnt;
struct rpc_cred *ds_cred;
const struct cred *ds_cred;
loff_t offset = hdr->args.offset;
u32 idx = hdr->pgio_mirror_idx;
int vers;
@ -1765,7 +1754,7 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr)
vers == 3 ? &ff_layout_read_call_ops_v3 :
&ff_layout_read_call_ops_v4,
0, RPC_TASK_SOFTCONN);
put_rpccred(ds_cred);
put_cred(ds_cred);
return PNFS_ATTEMPTED;
out_failed:
@ -1781,7 +1770,7 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
struct pnfs_layout_segment *lseg = hdr->lseg;
struct nfs4_pnfs_ds *ds;
struct rpc_clnt *ds_clnt;
struct rpc_cred *ds_cred;
const struct cred *ds_cred;
loff_t offset = hdr->args.offset;
int vers;
struct nfs_fh *fh;
@ -1830,7 +1819,7 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
vers == 3 ? &ff_layout_write_call_ops_v3 :
&ff_layout_write_call_ops_v4,
sync, RPC_TASK_SOFTCONN);
put_rpccred(ds_cred);
put_cred(ds_cred);
return PNFS_ATTEMPTED;
out_failed:
@ -1860,7 +1849,7 @@ static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how)
struct pnfs_layout_segment *lseg = data->lseg;
struct nfs4_pnfs_ds *ds;
struct rpc_clnt *ds_clnt;
struct rpc_cred *ds_cred;
const struct cred *ds_cred;
u32 idx;
int vers, ret;
struct nfs_fh *fh;
@ -1900,7 +1889,7 @@ static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how)
vers == 3 ? &ff_layout_commit_call_ops_v3 :
&ff_layout_commit_call_ops_v4,
how, RPC_TASK_SOFTCONN);
put_rpccred(ds_cred);
put_cred(ds_cred);
return ret;
out_err:
pnfs_generic_prepare_to_resend_writes(data);

8
fs/nfs/flexfilelayout/flexfilelayout.h
View file

@ -81,8 +81,8 @@ struct nfs4_ff_layout_mirror {
u32 fh_versions_cnt;
struct nfs_fh *fh_versions;
nfs4_stateid stateid;
struct rpc_cred __rcu *ro_cred;
struct rpc_cred __rcu *rw_cred;
const struct cred __rcu *ro_cred;
const struct cred __rcu *rw_cred;
refcount_t ref;
spinlock_t lock;
unsigned long flags;
@ -229,8 +229,8 @@ nfs4_ff_find_or_create_ds_client(struct pnfs_layout_segment *lseg,
u32 ds_idx,
struct nfs_client *ds_clp,
struct inode *inode);
struct rpc_cred *ff_layout_get_ds_cred(struct pnfs_layout_segment *lseg,
u32 ds_idx, struct rpc_cred *mdscred);
const struct cred *ff_layout_get_ds_cred(struct pnfs_layout_segment *lseg,
u32 ds_idx, const struct cred *mdscred);
bool ff_layout_avoid_mds_available_ds(struct pnfs_layout_segment *lseg);
bool ff_layout_avoid_read_on_rw(struct pnfs_layout_segment *lseg);

16
fs/nfs/flexfilelayout/flexfilelayoutdev.c
View file

@ -330,10 +330,10 @@ int ff_layout_track_ds_error(struct nfs4_flexfile_layout *flo,
return 0;
}
static struct rpc_cred *
static const struct cred *
ff_layout_get_mirror_cred(struct nfs4_ff_layout_mirror *mirror, u32 iomode)
{
struct rpc_cred *cred, __rcu **pcred;
const struct cred *cred, __rcu **pcred;
if (iomode == IOMODE_READ)
pcred = &mirror->ro_cred;
@ -346,7 +346,7 @@ ff_layout_get_mirror_cred(struct nfs4_ff_layout_mirror *mirror, u32 iomode)
if (!cred)
break;
cred = get_rpccred_rcu(cred);
cred = get_cred_rcu(cred);
} while(!cred);
rcu_read_unlock();
return cred;
@ -465,19 +465,19 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx,
return ds;
}
struct rpc_cred *
const struct cred *
ff_layout_get_ds_cred(struct pnfs_layout_segment *lseg, u32 ds_idx,
struct rpc_cred *mdscred)
const struct cred *mdscred)
{
struct nfs4_ff_layout_mirror *mirror = FF_LAYOUT_COMP(lseg, ds_idx);
struct rpc_cred *cred;
const struct cred *cred;
if (mirror && !mirror->mirror_ds->ds_versions[0].tightly_coupled) {
cred = ff_layout_get_mirror_cred(mirror, lseg->pls_range.iomode);
if (!cred)
cred = get_rpccred(mdscred);
cred = get_cred(mdscred);
} else {
cred = get_rpccred(mdscred);
cred = get_cred(mdscred);
}
return cred;
}

11
fs/nfs/inode.c
View file

@ -950,13 +950,11 @@ struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry,
struct file *filp)
{
struct nfs_open_context *ctx;
struct rpc_cred *cred = rpc_lookup_cred();
if (IS_ERR(cred))
return ERR_CAST(cred);
const struct cred *cred = get_current_cred();
ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx) {
put_rpccred(cred);
put_cred(cred);
return ERR_PTR(-ENOMEM);
}
nfs_sb_active(dentry->d_sb);
@ -998,8 +996,7 @@ static void __put_nfs_open_context(struct nfs_open_context *ctx, int is_sync)
}
if (inode != NULL)
NFS_PROTO(inode)->close_context(ctx, is_sync);
if (ctx->cred != NULL)
put_rpccred(ctx->cred);
put_cred(ctx->cred);
dput(ctx->dentry);
nfs_sb_deactive(sb);
put_rpccred(ctx->ll_cred);
@ -1044,7 +1041,7 @@ EXPORT_SYMBOL_GPL(nfs_file_set_open_context);
/*
* Given an inode, search for an open context with the desired characteristics
*/
struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode)
struct nfs_open_context *nfs_find_open_context(struct inode *inode, const struct cred *cred, fmode_t mode)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_open_context *pos, *ctx = NULL;

8
fs/nfs/internal.h
View file

@ -254,7 +254,7 @@ struct nfs_pgio_header *nfs_pgio_header_alloc(const struct nfs_rw_ops *);
void nfs_pgio_header_free(struct nfs_pgio_header *);
int nfs_generic_pgio(struct nfs_pageio_descriptor *, struct nfs_pgio_header *);
int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
struct rpc_cred *cred, const struct nfs_rpc_ops *rpc_ops,
const struct cred *cred, const struct nfs_rpc_ops *rpc_ops,
const struct rpc_call_ops *call_ops, int how, int flags);
void nfs_free_request(struct nfs_page *req);
struct nfs_pgio_mirror *
@ -269,7 +269,7 @@ static inline bool nfs_pgio_has_mirroring(struct nfs_pageio_descriptor *desc)
static inline bool nfs_match_open_context(const struct nfs_open_context *ctx1,
const struct nfs_open_context *ctx2)
{
return ctx1->cred == ctx2->cred && ctx1->state == ctx2->state;
return cred_fscmp(ctx1->cred, ctx2->cred) == 0 && ctx1->state == ctx2->state;
}
/* nfs2xdr.c */
@ -564,10 +564,10 @@ extern struct nfs_client *nfs4_init_client(struct nfs_client *clp,
const struct nfs_client_initdata *);
extern int nfs40_walk_client_list(struct nfs_client *clp,
struct nfs_client **result,
struct rpc_cred *cred);
const struct cred *cred);
extern int nfs41_walk_client_list(struct nfs_client *clp,
struct nfs_client **result,
struct rpc_cred *cred);
const struct cred *cred);
extern int nfs4_test_session_trunk(struct rpc_clnt *,
struct rpc_xprt *,
void *);

18
fs/nfs/nfs3proc.c
View file

@ -195,20 +195,15 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
.access = entry->mask,
};
struct nfs3_accessres res;
struct auth_cred acred = {
.cred = entry->cred,
};
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
.rpc_argp = &arg,
.rpc_resp = &res,
.rpc_cred = rpc_lookup_generic_cred(&acred, 0, GFP_NOFS),
.rpc_cred = entry->cred,
};
int status = -ENOMEM;
dprintk("NFS call access\n");
if (!msg.rpc_cred)
goto out;
res.fattr = nfs_alloc_fattr();
if (res.fattr == NULL)
goto out;
@ -219,8 +214,6 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
nfs_access_set_mask(entry, res.access);
nfs_free_fattr(res.fattr);
out:
if (msg.rpc_cred)
put_rpccred(msg.rpc_cred);
dprintk("NFS reply access: %d\n", status);
return status;
}
@ -631,15 +624,11 @@ nfs3_proc_readdir(struct dentry *dentry, const struct cred *cred,
.verf = verf,
.plus = plus
};
struct auth_cred acred = {
.cred = cred,
};
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
.rpc_argp = &arg,
.rpc_resp = &res,
.rpc_cred = rpc_lookup_generic_cred(&acred,
0, GFP_NOFS),
.rpc_cred = cred,
};
int status = -ENOMEM;
@ -649,8 +638,6 @@ nfs3_proc_readdir(struct dentry *dentry, const struct cred *cred,
dprintk("NFS call readdir%s %d\n",
plus? "plus" : "", (unsigned int) cookie);
if (!msg.rpc_cred)
return -ENOMEM;
res.dir_attr = nfs_alloc_fattr();
if (res.dir_attr == NULL)
goto out;
@ -662,7 +649,6 @@ nfs3_proc_readdir(struct dentry *dentry, const struct cred *cred,
nfs_free_fattr(res.dir_attr);
out:
put_rpccred(msg.rpc_cred);
dprintk("NFS reply readdir%s: %d\n",
plus? "plus" : "", status);
return status;

56
fs/nfs/nfs4_fs.h
View file

@ -62,7 +62,7 @@ struct nfs4_minor_version_ops {
void (*free_lock_state)(struct nfs_server *,
struct nfs4_lock_state *);
int (*test_and_free_expired)(struct nfs_server *,
nfs4_stateid *, struct rpc_cred *);
nfs4_stateid *, const struct cred *);
struct nfs_seqid *
(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);
int (*session_trunk)(struct rpc_clnt *, struct rpc_xprt *, void *);
@ -107,7 +107,7 @@ struct nfs4_state_owner {
unsigned long so_expires;
struct rb_node so_server_node;
struct rpc_cred *so_cred; /* Associated cred */
const struct cred *so_cred; /* Associated cred */
spinlock_t so_lock;
atomic_t so_count;
@ -212,10 +212,10 @@ struct nfs4_state_recovery_ops {
int state_flag_bit;
int (*recover_open)(struct nfs4_state_owner *, struct nfs4_state *);
int (*recover_lock)(struct nfs4_state *, struct file_lock *);
int (*establish_clid)(struct nfs_client *, struct rpc_cred *);
int (*reclaim_complete)(struct nfs_client *, struct rpc_cred *);
int (*establish_clid)(struct nfs_client *, const struct cred *);
int (*reclaim_complete)(struct nfs_client *, const struct cred *);
int (*detect_trunking)(struct nfs_client *, struct nfs_client **,
struct rpc_cred *);
const struct cred *);
};
struct nfs4_opendata {
@ -245,19 +245,19 @@ struct nfs4_opendata {
struct nfs4_add_xprt_data {
struct nfs_client *clp;
struct rpc_cred *cred;
const struct cred *cred;
};
struct nfs4_state_maintenance_ops {
int (*sched_state_renewal)(struct nfs_client *, struct rpc_cred *, unsigned);
struct rpc_cred * (*get_state_renewal_cred)(struct nfs_client *);
int (*renew_lease)(struct nfs_client *, struct rpc_cred *);
int (*sched_state_renewal)(struct nfs_client *, const struct cred *, unsigned);
const struct cred * (*get_state_renewal_cred)(struct nfs_client *);
int (*renew_lease)(struct nfs_client *, const struct cred *);
};
struct nfs4_mig_recovery_ops {
int (*get_locations)(struct inode *, struct nfs4_fs_locations *,
struct page *, struct rpc_cred *);
int (*fsid_present)(struct inode *, struct rpc_cred *);
struct page *, const struct cred *);
int (*fsid_present)(struct inode *, const struct cred *);
};
extern const struct dentry_operations nfs4_dentry_operations;
@ -286,21 +286,21 @@ extern int nfs4_call_sync(struct rpc_clnt *, struct nfs_server *,
struct rpc_message *, struct nfs4_sequence_args *,
struct nfs4_sequence_res *, int);
extern void nfs4_init_sequence(struct nfs4_sequence_args *, struct nfs4_sequence_res *, int, int);
extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *, struct nfs4_setclientid_res *);
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, struct rpc_cred *);
extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, const struct cred *, struct nfs4_setclientid_res *);
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, const struct cred *);
extern int nfs4_proc_get_rootfh(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *, bool);
extern int nfs4_proc_bind_conn_to_session(struct nfs_client *, struct rpc_cred *cred);
extern int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred);
extern int nfs4_proc_bind_conn_to_session(struct nfs_client *, const struct cred *cred);
extern int nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cred);
extern int nfs4_destroy_clientid(struct nfs_client *clp);
extern int nfs4_init_clientid(struct nfs_client *, struct rpc_cred *);
extern int nfs41_init_clientid(struct nfs_client *, struct rpc_cred *);
extern int nfs4_init_clientid(struct nfs_client *, const struct cred *);
extern int nfs41_init_clientid(struct nfs_client *, const struct cred *);
extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait);
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struct qstr *,
struct nfs4_fs_locations *, struct page *);
extern int nfs4_proc_get_locations(struct inode *, struct nfs4_fs_locations *,
struct page *page, struct rpc_cred *);
extern int nfs4_proc_fsid_present(struct inode *, struct rpc_cred *);
struct page *page, const struct cred *);
extern int nfs4_proc_fsid_present(struct inode *, const struct cred *);
extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *, const struct qstr *,
struct nfs_fh *, struct nfs_fattr *);
extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
@ -312,8 +312,8 @@ extern int nfs4_set_rw_stateid(nfs4_stateid *stateid,
#if defined(CONFIG_NFS_V4_1)
extern int nfs41_sequence_done(struct rpc_task *, struct nfs4_sequence_res *);
extern int nfs4_proc_create_session(struct nfs_client *, struct rpc_cred *);
extern int nfs4_proc_destroy_session(struct nfs4_session *, struct rpc_cred *);
extern int nfs4_proc_create_session(struct nfs_client *, const struct cred *);
extern int nfs4_proc_destroy_session(struct nfs4_session *, const struct cred *);
extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
struct nfs_fsinfo *fsinfo);
extern int nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data,
@ -443,16 +443,16 @@ extern void nfs4_set_lease_period(struct nfs_client *clp,
/* nfs4state.c */
struct rpc_cred *nfs4_get_clid_cred(struct nfs_client *clp);
struct rpc_cred *nfs4_get_machine_cred(struct nfs_client *clp);
struct rpc_cred *nfs4_get_renew_cred(struct nfs_client *clp);
const struct cred *nfs4_get_clid_cred(struct nfs_client *clp);
const struct cred *nfs4_get_machine_cred(struct nfs_client *clp);
const struct cred *nfs4_get_renew_cred(struct nfs_client *clp);
int nfs4_discover_server_trunking(struct nfs_client *clp,
struct nfs_client **);
int nfs40_discover_server_trunking(struct nfs_client *clp,
struct nfs_client **, struct rpc_cred *);
struct nfs_client **, const struct cred *);
#if defined(CONFIG_NFS_V4_1)
int nfs41_discover_server_trunking(struct nfs_client *clp,
struct nfs_client **, struct rpc_cred *);
struct nfs_client **, const struct cred *);
extern void nfs4_schedule_session_recovery(struct nfs4_session *, int);
extern void nfs41_notify_server(struct nfs_client *);
#else
@ -461,7 +461,7 @@ static inline void nfs4_schedule_session_recovery(struct nfs4_session *session,
}
#endif /* CONFIG_NFS_V4_1 */
extern struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *, gfp_t);
extern struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *, const struct cred *, gfp_t);
extern void nfs4_put_state_owner(struct nfs4_state_owner *);
extern void nfs4_purge_state_owners(struct nfs_server *);
extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
@ -487,7 +487,7 @@ extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
extern int nfs4_select_rw_stateid(struct nfs4_state *, fmode_t,
const struct nfs_lock_context *, nfs4_stateid *,
struct rpc_cred **);
const struct cred **);
extern bool nfs4_refresh_open_stateid(nfs4_stateid *dst,
struct nfs4_state *state);
extern bool nfs4_copy_open_stateid(nfs4_stateid *dst,

4
fs/nfs/nfs4client.c
View file

@ -545,7 +545,7 @@ static int nfs4_match_client(struct nfs_client *pos, struct nfs_client *new,
*/
int nfs40_walk_client_list(struct nfs_client *new,
struct nfs_client **result,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs_net *nn = net_generic(new->cl_net, nfs_net_id);
struct nfs_client *pos, *prev = NULL;
@ -711,7 +711,7 @@ int nfs4_detect_session_trunking(struct nfs_client *clp,
*/
int nfs41_walk_client_list(struct nfs_client *new,
struct nfs_client **result,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs_net *nn = net_generic(new->cl_net, nfs_net_id);
struct nfs_client *pos, *prev = NULL;

167
fs/nfs/nfs4proc.c
View file

@ -93,19 +93,19 @@ static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinf
static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr);
static int nfs4_proc_getattr(struct nfs_server *, struct nfs_fh *, struct nfs_fattr *, struct nfs4_label *label, struct inode *inode);
static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr, struct nfs4_label *label, struct inode *inode);
static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
static int nfs4_do_setattr(struct inode *inode, const struct cred *cred,
struct nfs_fattr *fattr, struct iattr *sattr,
struct nfs_open_context *ctx, struct nfs4_label *ilabel,
struct nfs4_label *olabel);
#ifdef CONFIG_NFS_V4_1
static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp,
struct rpc_cred *cred,
const struct cred *cred,
struct nfs4_slot *slot,
bool is_privileged);
static int nfs41_test_stateid(struct nfs_server *, nfs4_stateid *,
struct rpc_cred *);
const struct cred *);
static int nfs41_free_stateid(struct nfs_server *, const nfs4_stateid *,
struct rpc_cred *, bool);
const struct cred *, bool);
#endif
#ifdef CONFIG_NFS_V4_SECURITY_LABEL
@ -361,7 +361,7 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
static void nfs4_test_and_free_stateid(struct nfs_server *server,
nfs4_stateid *stateid,
struct rpc_cred *cred)
const struct cred *cred)
{
const struct nfs4_minor_version_ops *ops = server->nfs_client->cl_mvops;
@ -370,7 +370,7 @@ static void nfs4_test_and_free_stateid(struct nfs_server *server,
static void __nfs4_free_revoked_stateid(struct nfs_server *server,
nfs4_stateid *stateid,
struct rpc_cred *cred)
const struct cred *cred)
{
stateid->type = NFS4_REVOKED_STATEID_TYPE;
nfs4_test_and_free_stateid(server, stateid, cred);
@ -378,7 +378,7 @@ static void __nfs4_free_revoked_stateid(struct nfs_server *server,
static void nfs4_free_revoked_stateid(struct nfs_server *server,
const nfs4_stateid *stateid,
struct rpc_cred *cred)
const struct cred *cred)
{
nfs4_stateid tmp;
@ -908,7 +908,7 @@ static const struct rpc_call_ops nfs41_call_sync_ops = {
static void
nfs4_sequence_process_interrupted(struct nfs_client *client,
struct nfs4_slot *slot, struct rpc_cred *cred)
struct nfs4_slot *slot, const struct cred *cred)
{
struct rpc_task *task;
@ -939,7 +939,7 @@ EXPORT_SYMBOL_GPL(nfs4_sequence_done);
static void
nfs4_sequence_process_interrupted(struct nfs_client *client,
struct nfs4_slot *slot, struct rpc_cred *cred)
struct nfs4_slot *slot, const struct cred *cred)
{
WARN_ON_ONCE(1);
slot->interrupted = 0;
@ -1772,7 +1772,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
rcu_read_unlock();
nfs_release_seqid(opendata->o_arg.seqid);
if (!opendata->is_recover) {
ret = nfs_may_open(state->inode, state->owner->so_cred->cr_cred, open_mode);
ret = nfs_may_open(state->inode, state->owner->so_cred, open_mode);
if (ret != 0)
goto out;
}
@ -2484,7 +2484,7 @@ static int _nfs4_recover_proc_open(struct nfs4_opendata *data)
* Note that in the non-execute case, we want to turn off permission
* checking if we just created a new file (POSIX open() semantics).
*/
static int nfs4_opendata_access(struct rpc_cred *cred,
static int nfs4_opendata_access(const struct cred *cred,
struct nfs4_opendata *opendata,
struct nfs4_state *state, fmode_t fmode,
int openflags)
@ -2511,7 +2511,7 @@ static int nfs4_opendata_access(struct rpc_cred *cred,
} else if ((fmode & FMODE_READ) && !opendata->file_created)
mask = NFS4_ACCESS_READ;
cache.cred = cred->cr_cred;
cache.cred = cred;
nfs_access_set_mask(&cache, opendata->o_res.access_result);
nfs_access_add_cache(state->inode, &cache);
@ -2651,7 +2651,7 @@ static int nfs40_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
static int nfs40_test_and_free_expired_stateid(struct nfs_server *server,
nfs4_stateid *stateid,
struct rpc_cred *cred)
const struct cred *cred)
{
return -NFS4ERR_BAD_STATEID;
}
@ -2659,7 +2659,7 @@ static int nfs40_test_and_free_expired_stateid(struct nfs_server *server,
#if defined(CONFIG_NFS_V4_1)
static int nfs41_test_and_free_expired_stateid(struct nfs_server *server,
nfs4_stateid *stateid,
struct rpc_cred *cred)
const struct cred *cred)
{
int status;
@ -2693,7 +2693,7 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state)
struct nfs_server *server = NFS_SERVER(state->inode);
nfs4_stateid stateid;
struct nfs_delegation *delegation;
struct rpc_cred *cred;
const struct cred *cred = NULL;
int status;
/* Get the delegation credential for use by test/free_stateid */
@ -2718,14 +2718,16 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state)
return;
}
cred = get_rpccred(delegation->cred);
if (delegation->cred)
cred = get_cred(delegation->cred);
rcu_read_unlock();
status = nfs41_test_and_free_expired_stateid(server, &stateid, cred);
trace_nfs4_test_delegation_stateid(state, NULL, status);
if (status == -NFS4ERR_EXPIRED || status == -NFS4ERR_BAD_STATEID)
nfs_finish_clear_delegation_stateid(state, &stateid);
put_rpccred(cred);
if (delegation->cred)
put_cred(cred);
}
/**
@ -2748,7 +2750,7 @@ static int nfs41_check_expired_locks(struct nfs4_state *state)
spin_lock(&state->state_lock);
list_for_each_entry(lsp, &state->lock_states, ls_locks) {
if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags)) {
struct rpc_cred *cred = lsp->ls_state->owner->so_cred;
const struct cred *cred = lsp->ls_state->owner->so_cred;
refcount_inc(&lsp->ls_count);
spin_unlock(&state->state_lock);
@ -2792,7 +2794,7 @@ static int nfs41_check_open_stateid(struct nfs4_state *state)
{
struct nfs_server *server = NFS_SERVER(state->inode);
nfs4_stateid *stateid = &state->open_stateid;
struct rpc_cred *cred = state->owner->so_cred;
const struct cred *cred = state->owner->so_cred;
int status;
if (test_bit(NFS_OPEN_STATE, &state->flags) == 0) {
@ -2950,7 +2952,7 @@ static int _nfs4_do_open(struct inode *dir,
struct nfs_server *server = NFS_SERVER(dir);
struct nfs4_opendata *opendata;
struct dentry *dentry = ctx->dentry;
struct rpc_cred *cred = ctx->cred;
const struct cred *cred = ctx->cred;
struct nfs4_threshold **ctx_th = &ctx->mdsthreshold;
fmode_t fmode = ctx->mode & (FMODE_READ|FMODE_WRITE|FMODE_EXEC);
enum open_claim_type4 claim = NFS4_OPEN_CLAIM_NULL;
@ -3120,7 +3122,7 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir,
static int _nfs4_do_setattr(struct inode *inode,
struct nfs_setattrargs *arg,
struct nfs_setattrres *res,
struct rpc_cred *cred,
const struct cred *cred,
struct nfs_open_context *ctx)
{
struct nfs_server *server = NFS_SERVER(inode);
@ -3130,7 +3132,7 @@ static int _nfs4_do_setattr(struct inode *inode,
.rpc_resp = res,
.rpc_cred = cred,
};
struct rpc_cred *delegation_cred = NULL;
const struct cred *delegation_cred = NULL;
unsigned long timestamp = jiffies;
bool truncate;
int status;
@ -3165,14 +3167,14 @@ static int _nfs4_do_setattr(struct inode *inode,
status = nfs4_call_sync(server->client, server, &msg, &arg->seq_args, &res->seq_res, 1);
put_rpccred(delegation_cred);
put_cred(delegation_cred);
if (status == 0 && ctx != NULL)
renew_lease(server, timestamp);
trace_nfs4_setattr(inode, &arg->stateid, status);
return status;
}
static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
static int nfs4_do_setattr(struct inode *inode, const struct cred *cred,
struct nfs_fattr *fattr, struct iattr *sattr,
struct nfs_open_context *ctx, struct nfs4_label *ilabel,
struct nfs4_label *olabel)
@ -3973,7 +3975,7 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
struct iattr *sattr)
{
struct inode *inode = d_inode(dentry);
struct rpc_cred *cred = NULL;
const struct cred *cred = NULL;
struct nfs_open_context *ctx = NULL;
struct nfs4_label *label = NULL;
int status;
@ -4188,28 +4190,20 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry
struct nfs4_accessres res = {
.server = server,
};
struct auth_cred acred = {
.cred = entry->cred,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_ACCESS],
.rpc_argp = &args,
.rpc_resp = &res,
.rpc_cred = rpc_lookup_generic_cred(&acred, 0, GFP_NOFS),
.rpc_cred = entry->cred,
};
int status = 0;
if (!msg.rpc_cred)
return -ENOMEM;
if (!nfs4_have_delegation(inode, FMODE_READ)) {
res.fattr = nfs_alloc_fattr();
if (res.fattr == NULL) {
put_rpccred(msg.rpc_cred);
if (res.fattr == NULL)
return -ENOMEM;
}
args.bitmask = server->cache_consistency_bitmask;
}
status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
if (!status) {
nfs_access_set_mask(entry, res.access);
@ -4217,7 +4211,6 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry
nfs_refresh_inode(inode, res.fattr);
}
nfs_free_fattr(res.fattr);
put_rpccred(msg.rpc_cred);
return status;
}
@ -4712,23 +4705,17 @@ static int _nfs4_proc_readdir(struct dentry *dentry, const struct cred *cred,
.plus = plus,
};
struct nfs4_readdir_res res;
struct auth_cred acred = {
.cred = cred,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READDIR],
.rpc_argp = &args,
.rpc_resp = &res,
.rpc_cred = rpc_lookup_generic_cred(&acred,
0, GFP_NOFS),
.rpc_cred = cred,
};
int status;
dprintk("%s: dentry = %pd2, cookie = %Lu\n", __func__,
dentry,
(unsigned long long)cookie);
if (!msg.rpc_cred)
return -ENOMEM;
nfs4_setup_readdir(cookie, NFS_I(dir)->cookieverf, dentry, &args);
res.pgbase = args.pgbase;
status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0);
@ -4739,7 +4726,6 @@ static int _nfs4_proc_readdir(struct dentry *dentry, const struct cred *cred,
nfs_invalidate_atime(dir);
put_rpccred(msg.rpc_cred);
dprintk("%s: returns %d\n", __func__, status);
return status;
}
@ -5272,7 +5258,7 @@ static const struct rpc_call_ops nfs4_renew_ops = {
.rpc_release = nfs4_renew_release,
};
static int nfs4_proc_async_renew(struct nfs_client *clp, struct rpc_cred *cred, unsigned renew_flags)
static int nfs4_proc_async_renew(struct nfs_client *clp, const struct cred *cred, unsigned renew_flags)
{
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENEW],
@ -5296,7 +5282,7 @@ static int nfs4_proc_async_renew(struct nfs_client *clp, struct rpc_cred *cred,
&nfs4_renew_ops, data);
}
static int nfs4_proc_renew(struct nfs_client *clp, struct rpc_cred *cred)
static int nfs4_proc_renew(struct nfs_client *clp, const struct cred *cred)
{
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENEW],
@ -5711,7 +5697,6 @@ nfs4_set_security_label(struct inode *inode, const void *buf, size_t buflen)
{
struct nfs4_label ilabel, *olabel = NULL;
struct nfs_fattr fattr;
struct rpc_cred *cred;
int status;
if (!nfs_server_capable(inode, NFS_CAP_SECURITY_LABEL))
@ -5724,10 +5709,6 @@ nfs4_set_security_label(struct inode *inode, const void *buf, size_t buflen)
ilabel.label = (char *)buf;
ilabel.len = buflen;
cred = rpc_lookup_cred();
if (IS_ERR(cred))
return PTR_ERR(cred);
olabel = nfs4_label_alloc(NFS_SERVER(inode), GFP_KERNEL);
if (IS_ERR(olabel)) {
status = -PTR_ERR(olabel);
@ -5740,7 +5721,6 @@ nfs4_set_security_label(struct inode *inode, const void *buf, size_t buflen)
nfs4_label_free(olabel);
out:
put_rpccred(cred);
return status;
}
#endif /* CONFIG_NFS_V4_SECURITY_LABEL */
@ -5909,13 +5889,13 @@ static const struct rpc_call_ops nfs4_setclientid_ops = {
* @clp: state data structure
* @program: RPC program for NFSv4 callback service
* @port: IP port number for NFS4 callback service
* @cred: RPC credential to use for this call
* @cred: credential to use for this call
* @res: where to place the result
*
* Returns zero, a negative errno, or a negative NFS4ERR status code.
*/
int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
unsigned short port, struct rpc_cred *cred,
unsigned short port, const struct cred *cred,
struct nfs4_setclientid_res *res)
{
nfs4_verifier sc_verifier;
@ -5984,13 +5964,13 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
* nfs4_proc_setclientid_confirm - Confirm client ID
* @clp: state data structure
* @res: result of a previous SETCLIENTID
* @cred: RPC credential to use for this call
* @cred: credential to use for this call
*
* Returns zero, a negative errno, or a negative NFS4ERR status code.
*/
int nfs4_proc_setclientid_confirm(struct nfs_client *clp,
struct nfs4_setclientid_res *arg,
struct rpc_cred *cred)
const struct cred *cred)
{
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETCLIENTID_CONFIRM],
@ -6153,7 +6133,7 @@ static const struct rpc_call_ops nfs4_delegreturn_ops = {
.rpc_release = nfs4_delegreturn_release,
};
static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync)
static int _nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred, const nfs4_stateid *stateid, int issync)
{
struct nfs4_delegreturndata *data;
struct nfs_server *server = NFS_SERVER(inode);
@ -6220,7 +6200,7 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
return status;
}
int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync)
int nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred, const nfs4_stateid *stateid, int issync)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_exception exception = { };
@ -7281,7 +7261,7 @@ int nfs4_proc_fs_locations(struct rpc_clnt *client, struct inode *dir,
*/
static int _nfs40_proc_get_locations(struct inode *inode,
struct nfs4_fs_locations *locations,
struct page *page, struct rpc_cred *cred)
struct page *page, const struct cred *cred)
{
struct nfs_server *server = NFS_SERVER(inode);
struct rpc_clnt *clnt = server->client;
@ -7338,7 +7318,7 @@ static int _nfs40_proc_get_locations(struct inode *inode,
*/
static int _nfs41_proc_get_locations(struct inode *inode,
struct nfs4_fs_locations *locations,
struct page *page, struct rpc_cred *cred)
struct page *page, const struct cred *cred)
{
struct nfs_server *server = NFS_SERVER(inode);
struct rpc_clnt *clnt = server->client;
@ -7397,7 +7377,7 @@ static int _nfs41_proc_get_locations(struct inode *inode,
*/
int nfs4_proc_get_locations(struct inode *inode,
struct nfs4_fs_locations *locations,
struct page *page, struct rpc_cred *cred)
struct page *page, const struct cred *cred)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs_client *clp = server->nfs_client;
@ -7428,7 +7408,7 @@ int nfs4_proc_get_locations(struct inode *inode,
* is appended to this compound to identify the client ID which is
* performing recovery.
*/
static int _nfs40_proc_fsid_present(struct inode *inode, struct rpc_cred *cred)
static int _nfs40_proc_fsid_present(struct inode *inode, const struct cred *cred)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
@ -7474,7 +7454,7 @@ static int _nfs40_proc_fsid_present(struct inode *inode, struct rpc_cred *cred)
* this operation is identified in the SEQUENCE operation in this
* compound.
*/
static int _nfs41_proc_fsid_present(struct inode *inode, struct rpc_cred *cred)
static int _nfs41_proc_fsid_present(struct inode *inode, const struct cred *cred)
{
struct nfs_server *server = NFS_SERVER(inode);
struct rpc_clnt *clnt = server->client;
@ -7521,7 +7501,7 @@ static int _nfs41_proc_fsid_present(struct inode *inode, struct rpc_cred *cred)
* NFS4ERR code if some error occurred on the server, or a
* negative errno if a local failure occurred.
*/
int nfs4_proc_fsid_present(struct inode *inode, struct rpc_cred *cred)
int nfs4_proc_fsid_present(struct inode *inode, const struct cred *cred)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs_client *clp = server->nfs_client;
@ -7568,7 +7548,7 @@ static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct
.rpc_resp = &res,
};
struct rpc_clnt *clnt = NFS_SERVER(dir)->client;
struct rpc_cred *cred = NULL;
const struct cred *cred = NULL;
if (use_integrity) {
clnt = NFS_SERVER(dir)->nfs_client->cl_rpcclient;
@ -7585,8 +7565,7 @@ static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct
&res.seq_res, 0);
dprintk("NFS reply secinfo: %d\n", status);
if (cred)
put_rpccred(cred);
put_cred(cred);
return status;
}
@ -7667,7 +7646,7 @@ static
int nfs4_proc_bind_one_conn_to_session(struct rpc_clnt *clnt,
struct rpc_xprt *xprt,
struct nfs_client *clp,
struct rpc_cred *cred)
const struct cred *cred)
{
int status;
struct nfs41_bind_conn_to_session_args args = {
@ -7729,7 +7708,7 @@ int nfs4_proc_bind_one_conn_to_session(struct rpc_clnt *clnt,
struct rpc_bind_conn_calldata {
struct nfs_client *clp;
struct rpc_cred *cred;
const struct cred *cred;
};
static int
@ -7742,7 +7721,7 @@ nfs4_proc_bind_conn_to_session_callback(struct rpc_clnt *clnt,
return nfs4_proc_bind_one_conn_to_session(clnt, xprt, p->clp, p->cred);
}
int nfs4_proc_bind_conn_to_session(struct nfs_client *clp, struct rpc_cred *cred)
int nfs4_proc_bind_conn_to_session(struct nfs_client *clp, const struct cred *cred)
{
struct rpc_bind_conn_calldata data = {
.clp = clp,
@ -7908,7 +7887,7 @@ static const struct rpc_call_ops nfs4_exchange_id_call_ops = {
* Wrapper for EXCHANGE_ID operation.
*/
static struct rpc_task *
nfs4_run_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
nfs4_run_exchange_id(struct nfs_client *clp, const struct cred *cred,
u32 sp4_how, struct rpc_xprt *xprt)
{
struct rpc_message msg = {
@ -8004,7 +7983,7 @@ nfs4_run_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
*
* Wrapper for EXCHANGE_ID operation.
*/
static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
static int _nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cred,
u32 sp4_how)
{
struct rpc_task *task;
@ -8071,7 +8050,7 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
*
* Will attempt to negotiate SP4_MACH_CRED if krb5i / krb5p auth is used.
*/
int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
int nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cred)
{
rpc_authflavor_t authflavor = clp->cl_rpcclient->cl_auth->au_flavor;
int status;
@ -8133,7 +8112,7 @@ int nfs4_test_session_trunk(struct rpc_clnt *clnt, struct rpc_xprt *xprt,
EXPORT_SYMBOL_GPL(nfs4_test_session_trunk);
static int _nfs4_proc_destroy_clientid(struct nfs_client *clp,
struct rpc_cred *cred)
const struct cred *cred)
{
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DESTROY_CLIENTID],
@ -8151,7 +8130,7 @@ static int _nfs4_proc_destroy_clientid(struct nfs_client *clp,
}
static int nfs4_proc_destroy_clientid(struct nfs_client *clp,
struct rpc_cred *cred)
const struct cred *cred)
{
unsigned int loop;
int ret;
@ -8172,7 +8151,7 @@ static int nfs4_proc_destroy_clientid(struct nfs_client *clp,
int nfs4_destroy_clientid(struct nfs_client *clp)
{
struct rpc_cred *cred;
const struct cred *cred;
int ret = 0;
if (clp->cl_mvops->minor_version < 1)
@ -8183,8 +8162,7 @@ int nfs4_destroy_clientid(struct nfs_client *clp)
goto out;
cred = nfs4_get_clid_cred(clp);
ret = nfs4_proc_destroy_clientid(clp, cred);
if (cred)
put_rpccred(cred);
put_cred(cred);
switch (ret) {
case 0:
case -NFS4ERR_STALE_CLIENTID:
@ -8400,7 +8378,7 @@ static void nfs4_update_session(struct nfs4_session *session,
}
static int _nfs4_proc_create_session(struct nfs_client *clp,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs4_session *session = clp->cl_session;
struct nfs41_create_session_args args = {
@ -8452,7 +8430,7 @@ static int _nfs4_proc_create_session(struct nfs_client *clp,
* It is the responsibility of the caller to verify the session is
* expired before calling this routine.
*/
int nfs4_proc_create_session(struct nfs_client *clp, struct rpc_cred *cred)
int nfs4_proc_create_session(struct nfs_client *clp, const struct cred *cred)
{
int status;
unsigned *ptr;
@ -8483,7 +8461,7 @@ int nfs4_proc_create_session(struct nfs_client *clp, struct rpc_cred *cred)
* The caller must serialize access to this routine.
*/
int nfs4_proc_destroy_session(struct nfs4_session *session,
struct rpc_cred *cred)
const struct cred *cred)
{
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DESTROY_SESSION],
@ -8585,7 +8563,7 @@ static const struct rpc_call_ops nfs41_sequence_ops = {
};
static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp,
struct rpc_cred *cred,
const struct cred *cred,
struct nfs4_slot *slot,
bool is_privileged)
{
@ -8628,7 +8606,7 @@ static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp,
return ret;
}
static int nfs41_proc_async_sequence(struct nfs_client *clp, struct rpc_cred *cred, unsigned renew_flags)
static int nfs41_proc_async_sequence(struct nfs_client *clp, const struct cred *cred, unsigned renew_flags)
{
struct rpc_task *task;
int ret = 0;
@ -8644,7 +8622,7 @@ static int nfs41_proc_async_sequence(struct nfs_client *clp, struct rpc_cred *cr
return ret;
}
static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
static int nfs4_proc_sequence(struct nfs_client *clp, const struct cred *cred)
{
struct rpc_task *task;
int ret;
@ -8740,7 +8718,7 @@ static const struct rpc_call_ops nfs4_reclaim_complete_call_ops = {
* Issue a global reclaim complete.
*/
static int nfs41_proc_reclaim_complete(struct nfs_client *clp,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs4_reclaim_complete_data *calldata;
struct rpc_task *task;
@ -9093,7 +9071,7 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync)
static int
_nfs4_proc_getdeviceinfo(struct nfs_server *server,
struct pnfs_device *pdev,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs4_getdeviceinfo_args args = {
.pdev = pdev,
@ -9125,7 +9103,7 @@ _nfs4_proc_getdeviceinfo(struct nfs_server *server,
int nfs4_proc_getdeviceinfo(struct nfs_server *server,
struct pnfs_device *pdev,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs4_exception exception = { };
int err;
@ -9182,7 +9160,7 @@ static void nfs4_layoutcommit_release(void *calldata)
pnfs_cleanup_layoutcommit(data);
nfs_post_op_update_inode_force_wcc(data->args.inode,
data->res.fattr);
put_rpccred(data->cred);
put_cred(data->cred);
nfs_iput_and_deactive(data->inode);
kfree(data);
}
@ -9258,7 +9236,7 @@ _nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
.rpc_resp = &res,
};
struct rpc_clnt *clnt = server->client;
struct rpc_cred *cred = NULL;
const struct cred *cred = NULL;
int status;
if (use_integrity) {
@ -9272,8 +9250,7 @@ _nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
&res.seq_res, 0);
dprintk("<-- %s status=%d\n", __func__, status);
if (cred)
put_rpccred(cred);
put_cred(cred);
return status;
}
@ -9386,7 +9363,7 @@ nfs41_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
static int _nfs41_test_stateid(struct nfs_server *server,
nfs4_stateid *stateid,
struct rpc_cred *cred)
const struct cred *cred)
{
int status;
struct nfs41_test_stateid_args args = {
@ -9447,7 +9424,7 @@ static void nfs4_handle_delay_or_session_error(struct nfs_server *server,
*/
static int nfs41_test_stateid(struct nfs_server *server,
nfs4_stateid *stateid,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs4_exception exception = { };
int err;
@ -9509,7 +9486,7 @@ static const struct rpc_call_ops nfs41_free_stateid_ops = {
*/
static int nfs41_free_stateid(struct nfs_server *server,
const nfs4_stateid *stateid,
struct rpc_cred *cred,
const struct cred *cred,
bool privileged)
{
struct rpc_message msg = {
@ -9550,7 +9527,7 @@ static int nfs41_free_stateid(struct nfs_server *server,
static void
nfs41_free_lock_state(struct nfs_server *server, struct nfs4_lock_state *lsp)
{
struct rpc_cred *cred = lsp->ls_state->owner->so_cred;
const struct cred *cred = lsp->ls_state->owner->so_cred;
nfs41_free_stateid(server, &lsp->ls_stateid, cred, false);
nfs4_free_lock_state(server, lsp);

4
fs/nfs/nfs4renewd.c
View file

@ -57,7 +57,7 @@ nfs4_renew_state(struct work_struct *work)
const struct nfs4_state_maintenance_ops *ops;
struct nfs_client *clp =
container_of(work, struct nfs_client, cl_renewd.work);
struct rpc_cred *cred;
const struct cred *cred;
long lease;
unsigned long last, now;
unsigned renew_flags = 0;
@ -90,7 +90,7 @@ nfs4_renew_state(struct work_struct *work)
/* Queue an asynchronous RENEW. */
ret = ops->sched_state_renewal(clp, cred, renew_flags);
put_rpccred(cred);
put_cred(cred);
switch (ret) {
default:
goto out_exp;

5
fs/nfs/nfs4session.c
View file

@ -573,12 +573,11 @@ static void nfs4_destroy_session_slot_tables(struct nfs4_session *session)
void nfs4_destroy_session(struct nfs4_session *session)
{
struct rpc_xprt *xprt;
struct rpc_cred *cred;
const struct cred *cred;
cred = nfs4_get_clid_cred(session->clp);
nfs4_proc_destroy_session(session, cred);
if (cred)
put_rpccred(cred);
put_cred(cred);
rcu_read_lock();
xprt = rcu_dereference(session->clp->cl_rpcclient->cl_xprt);

92
fs/nfs/nfs4state.c
View file

@ -87,7 +87,7 @@ const nfs4_stateid current_stateid = {
static DEFINE_MUTEX(nfs_clid_init_mutex);
int nfs4_init_clientid(struct nfs_client *clp, struct rpc_cred *cred)
int nfs4_init_clientid(struct nfs_client *clp, const struct cred *cred)
{
struct nfs4_setclientid_res clid = {
.clientid = clp->cl_clientid,
@ -134,7 +134,7 @@ int nfs4_init_clientid(struct nfs_client *clp, struct rpc_cred *cred)
*/
int nfs40_discover_server_trunking(struct nfs_client *clp,
struct nfs_client **result,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs4_setclientid_res clid = {
.clientid = clp->cl_clientid,
@ -164,9 +164,9 @@ int nfs40_discover_server_trunking(struct nfs_client *clp,
return status;
}
struct rpc_cred *nfs4_get_machine_cred(struct nfs_client *clp)
const struct cred *nfs4_get_machine_cred(struct nfs_client *clp)
{
return get_rpccred(rpc_machine_cred());
return get_cred(rpc_machine_cred());
}
static void nfs4_root_machine_cred(struct nfs_client *clp)
@ -177,10 +177,10 @@ static void nfs4_root_machine_cred(struct nfs_client *clp)
clp->cl_rpcclient->cl_principal = NULL;
}
static struct rpc_cred *
static const struct cred *
nfs4_get_renew_cred_server_locked(struct nfs_server *server)
{
struct rpc_cred *cred = NULL;
const struct cred *cred = NULL;
struct nfs4_state_owner *sp;
struct rb_node *pos;
@ -190,7 +190,7 @@ nfs4_get_renew_cred_server_locked(struct nfs_server *server)
sp = rb_entry(pos, struct nfs4_state_owner, so_server_node);
if (list_empty(&sp->so_states))
continue;
cred = get_rpccred(sp->so_cred);
cred = get_cred(sp->so_cred);
break;
}
return cred;
@ -203,9 +203,9 @@ nfs4_get_renew_cred_server_locked(struct nfs_server *server)
* Returns an rpc_cred with reference count bumped, or NULL.
* Caller must hold clp->cl_lock.
*/
struct rpc_cred *nfs4_get_renew_cred(struct nfs_client *clp)
const struct cred *nfs4_get_renew_cred(struct nfs_client *clp)
{
struct rpc_cred *cred = NULL;
const struct cred *cred = NULL;
struct nfs_server *server;
/* Use machine credentials if available */
@ -312,7 +312,7 @@ static void nfs41_finish_session_reset(struct nfs_client *clp)
nfs41_setup_state_renewal(clp);
}
int nfs41_init_clientid(struct nfs_client *clp, struct rpc_cred *cred)
int nfs41_init_clientid(struct nfs_client *clp, const struct cred *cred)
{
int status;
@ -347,7 +347,7 @@ int nfs41_init_clientid(struct nfs_client *clp, struct rpc_cred *cred)
*/
int nfs41_discover_server_trunking(struct nfs_client *clp,
struct nfs_client **result,
struct rpc_cred *cred)
const struct cred *cred)
{
int status;
@ -385,30 +385,32 @@ int nfs41_discover_server_trunking(struct nfs_client *clp,
* nfs4_get_clid_cred - Acquire credential for a setclientid operation
* @clp: client state handle
*
* Returns an rpc_cred with reference count bumped, or NULL.
* Returns a cred with reference count bumped, or NULL.
*/
struct rpc_cred *nfs4_get_clid_cred(struct nfs_client *clp)
const struct cred *nfs4_get_clid_cred(struct nfs_client *clp)
{
struct rpc_cred *cred;
const struct cred *cred;
cred = nfs4_get_machine_cred(clp);
return cred;
}
static struct nfs4_state_owner *
nfs4_find_state_owner_locked(struct nfs_server *server, struct rpc_cred *cred)
nfs4_find_state_owner_locked(struct nfs_server *server, const struct cred *cred)
{
struct rb_node **p = &server->state_owners.rb_node,
*parent = NULL;
struct nfs4_state_owner *sp;
int cmp;
while (*p != NULL) {
parent = *p;
sp = rb_entry(parent, struct nfs4_state_owner, so_server_node);
cmp = cred_fscmp(cred, sp->so_cred);
if (cred < sp->so_cred)
if (cmp < 0)
p = &parent->rb_left;
else if (cred > sp->so_cred)
else if (cmp > 0)
p = &parent->rb_right;
else {
if (!list_empty(&sp->so_lru))
@ -427,14 +429,16 @@ nfs4_insert_state_owner_locked(struct nfs4_state_owner *new)
struct rb_node **p = &server->state_owners.rb_node,
*parent = NULL;
struct nfs4_state_owner *sp;
int cmp;
while (*p != NULL) {
parent = *p;
sp = rb_entry(parent, struct nfs4_state_owner, so_server_node);
cmp = cred_fscmp(new->so_cred, sp->so_cred);
if (new->so_cred < sp->so_cred)
if (cmp < 0)
p = &parent->rb_left;
else if (new->so_cred > sp->so_cred)
else if (cmp > 0)
p = &parent->rb_right;
else {
if (!list_empty(&sp->so_lru))
@ -481,7 +485,7 @@ nfs4_destroy_seqid_counter(struct nfs_seqid_counter *sc)
*/
static struct nfs4_state_owner *
nfs4_alloc_state_owner(struct nfs_server *server,
struct rpc_cred *cred,
const struct cred *cred,
gfp_t gfp_flags)
{
struct nfs4_state_owner *sp;
@ -496,7 +500,7 @@ nfs4_alloc_state_owner(struct nfs_server *server,
return NULL;
}
sp->so_server = server;
sp->so_cred = get_rpccred(cred);
sp->so_cred = get_cred(cred);
spin_lock_init(&sp->so_lock);
INIT_LIST_HEAD(&sp->so_states);
nfs4_init_seqid_counter(&sp->so_seqid);
@ -525,7 +529,7 @@ nfs4_reset_state_owner(struct nfs4_state_owner *sp)
static void nfs4_free_state_owner(struct nfs4_state_owner *sp)
{
nfs4_destroy_seqid_counter(&sp->so_seqid);
put_rpccred(sp->so_cred);
put_cred(sp->so_cred);
ida_simple_remove(&sp->so_server->openowner_id, sp->so_seqid.owner_id);
kfree(sp);
}
@ -563,7 +567,7 @@ static void nfs4_gc_state_owners(struct nfs_server *server)
* Returns a pointer to an instantiated nfs4_state_owner struct, or NULL.
*/
struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server,
struct rpc_cred *cred,
const struct cred *cred,
gfp_t gfp_flags)
{
struct nfs_client *clp = server->nfs_client;
@ -1032,7 +1036,7 @@ bool nfs4_copy_open_stateid(nfs4_stateid *dst, struct nfs4_state *state)
*/
int nfs4_select_rw_stateid(struct nfs4_state *state,
fmode_t fmode, const struct nfs_lock_context *l_ctx,
nfs4_stateid *dst, struct rpc_cred **cred)
nfs4_stateid *dst, const struct cred **cred)
{
int ret;
@ -1732,7 +1736,7 @@ static void nfs4_state_start_reclaim_reboot(struct nfs_client *clp)
static int nfs4_reclaim_complete(struct nfs_client *clp,
const struct nfs4_state_recovery_ops *ops,
struct rpc_cred *cred)
const struct cred *cred)
{
/* Notify the server we're done reclaiming our state */
if (ops->reclaim_complete)
@ -1783,7 +1787,7 @@ static int nfs4_state_clear_reclaim_reboot(struct nfs_client *clp)
static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp)
{
const struct nfs4_state_recovery_ops *ops;
struct rpc_cred *cred;
const struct cred *cred;
int err;
if (!nfs4_state_clear_reclaim_reboot(clp))
@ -1791,7 +1795,7 @@ static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp)
ops = clp->cl_mvops->reboot_recovery_ops;
cred = nfs4_get_clid_cred(clp);
err = nfs4_reclaim_complete(clp, ops, cred);
put_rpccred(cred);
put_cred(cred);
if (err == -NFS4ERR_CONN_NOT_BOUND_TO_SESSION)
set_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state);
}
@ -1887,7 +1891,7 @@ static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recov
static int nfs4_check_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
const struct cred *cred;
const struct nfs4_state_maintenance_ops *ops =
clp->cl_mvops->state_renewal_ops;
int status;
@ -1903,7 +1907,7 @@ static int nfs4_check_lease(struct nfs_client *clp)
goto out;
}
status = ops->renew_lease(clp, cred);
put_rpccred(cred);
put_cred(cred);
if (status == -ETIMEDOUT) {
set_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
return 0;
@ -1963,7 +1967,7 @@ static int nfs4_handle_reclaim_lease_error(struct nfs_client *clp, int status)
static int nfs4_establish_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
const struct cred *cred;
const struct nfs4_state_recovery_ops *ops =
clp->cl_mvops->reboot_recovery_ops;
int status;
@ -1975,7 +1979,7 @@ static int nfs4_establish_lease(struct nfs_client *clp)
if (cred == NULL)
return -ENOENT;
status = ops->establish_clid(clp, cred);
put_rpccred(cred);
put_cred(cred);
if (status != 0)
return status;
pnfs_destroy_all_layouts(clp);
@ -2022,7 +2026,7 @@ static int nfs4_purge_lease(struct nfs_client *clp)
*
* Returns zero or a negative NFS4ERR status code.
*/
static int nfs4_try_migration(struct nfs_server *server, struct rpc_cred *cred)
static int nfs4_try_migration(struct nfs_server *server, const struct cred *cred)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_fs_locations *locations = NULL;
@ -2092,7 +2096,7 @@ static int nfs4_handle_migration(struct nfs_client *clp)
const struct nfs4_state_maintenance_ops *ops =
clp->cl_mvops->state_renewal_ops;
struct nfs_server *server;
struct rpc_cred *cred;
const struct cred *cred;
dprintk("%s: migration reported on \"%s\"\n", __func__,
clp->cl_hostname);
@ -2118,13 +2122,13 @@ static int nfs4_handle_migration(struct nfs_client *clp)
rcu_read_unlock();
status = nfs4_try_migration(server, cred);
if (status < 0) {
put_rpccred(cred);
put_cred(cred);
return status;
}
goto restart;
}
rcu_read_unlock();
put_rpccred(cred);
put_cred(cred);
return 0;
}
@ -2138,7 +2142,7 @@ static int nfs4_handle_lease_moved(struct nfs_client *clp)
const struct nfs4_state_maintenance_ops *ops =
clp->cl_mvops->state_renewal_ops;
struct nfs_server *server;
struct rpc_cred *cred;
const struct cred *cred;
dprintk("%s: lease moved reported on \"%s\"\n", __func__,
clp->cl_hostname);
@ -2171,7 +2175,7 @@ static int nfs4_handle_lease_moved(struct nfs_client *clp)
rcu_read_unlock();
out:
put_rpccred(cred);
put_cred(cred);
return 0;
}
@ -2194,7 +2198,7 @@ int nfs4_discover_server_trunking(struct nfs_client *clp,
const struct nfs4_state_recovery_ops *ops =
clp->cl_mvops->reboot_recovery_ops;
struct rpc_clnt *clnt;
struct rpc_cred *cred;
const struct cred *cred;
int i, status;
dprintk("NFS: %s: testing '%s'\n", __func__, clp->cl_hostname);
@ -2210,7 +2214,7 @@ int nfs4_discover_server_trunking(struct nfs_client *clp,
goto out_unlock;
status = ops->detect_trunking(clp, result, cred);
put_rpccred(cred);
put_cred(cred);
switch (status) {
case 0:
case -EINTR:
@ -2401,7 +2405,7 @@ void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags,
static int nfs4_reset_session(struct nfs_client *clp)
{
struct rpc_cred *cred;
const struct cred *cred;
int status;
if (!nfs4_has_session(clp))
@ -2439,14 +2443,13 @@ static int nfs4_reset_session(struct nfs_client *clp)
dprintk("%s: session reset was successful for server %s!\n",
__func__, clp->cl_hostname);
out:
if (cred)
put_rpccred(cred);
put_cred(cred);
return status;
}
static int nfs4_bind_conn_to_session(struct nfs_client *clp)
{
struct rpc_cred *cred;
const struct cred *cred;
int ret;
if (!nfs4_has_session(clp))
@ -2456,8 +2459,7 @@ static int nfs4_bind_conn_to_session(struct nfs_client *clp)
return ret;
cred = nfs4_get_clid_cred(clp);
ret = nfs4_proc_bind_conn_to_session(clp, cred);
if (cred)
put_rpccred(cred);
put_cred(cred);
clear_bit(NFS4CLNT_BIND_CONN_TO_SESSION, &clp->cl_state);
switch (ret) {
case 0:

2
fs/nfs/pagelist.c
View file

@ -587,7 +587,7 @@ static void nfs_pgio_prepare(struct rpc_task *task, void *calldata)
}
int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
struct rpc_cred *cred, const struct nfs_rpc_ops *rpc_ops,
const struct cred *cred, const struct nfs_rpc_ops *rpc_ops,
const struct rpc_call_ops *call_ops, int how, int flags)
{
struct rpc_task *task;

14
fs/nfs/pnfs.c
View file

@ -275,7 +275,7 @@ pnfs_free_layout_hdr(struct pnfs_layout_hdr *lo)
list_del_init(&lo->plh_layouts);
spin_unlock(&clp->cl_lock);
}
put_rpccred(lo->plh_lc_cred);
put_cred(lo->plh_lc_cred);
return ld->free_layout_hdr(lo);
}
@ -1038,7 +1038,7 @@ pnfs_alloc_init_layoutget_args(struct inode *ino,
lgp->args.ctx = get_nfs_open_context(ctx);
nfs4_stateid_copy(&lgp->args.stateid, stateid);
lgp->gfp_flags = gfp_flags;
lgp->cred = get_rpccred(ctx->cred);
lgp->cred = get_cred(ctx->cred);
return lgp;
}
@ -1049,7 +1049,7 @@ void pnfs_layoutget_free(struct nfs4_layoutget *lgp)
nfs4_free_pages(lgp->args.layout.pages, max_pages);
if (lgp->args.inode)
pnfs_put_layout_hdr(NFS_I(lgp->args.inode)->layout);
put_rpccred(lgp->cred);
put_cred(lgp->cred);
put_nfs_open_context(lgp->args.ctx);
kfree(lgp);
}
@ -1324,7 +1324,7 @@ pnfs_commit_and_return_layout(struct inode *inode)
bool pnfs_roc(struct inode *ino,
struct nfs4_layoutreturn_args *args,
struct nfs4_layoutreturn_res *res,
const struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs_inode *nfsi = NFS_I(ino);
struct nfs_open_context *ctx;
@ -1583,7 +1583,7 @@ alloc_init_layout_hdr(struct inode *ino,
INIT_LIST_HEAD(&lo->plh_return_segs);
INIT_LIST_HEAD(&lo->plh_bulk_destroy);
lo->plh_inode = ino;
lo->plh_lc_cred = get_rpccred(ctx->cred);
lo->plh_lc_cred = get_cred(ctx->cred);
lo->plh_flags |= 1 << NFS_LAYOUT_INVALID_STID;
return lo;
}
@ -2928,7 +2928,7 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync)
spin_unlock(&inode->i_lock);
data->args.inode = inode;
data->cred = get_rpccred(nfsi->layout->plh_lc_cred);
data->cred = get_cred(nfsi->layout->plh_lc_cred);
nfs_fattr_init(&data->fattr);
data->args.bitmask = NFS_SERVER(inode)->cache_consistency_bitmask;
data->res.fattr = &data->fattr;
@ -2941,7 +2941,7 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync)
if (ld->prepare_layoutcommit) {
status = ld->prepare_layoutcommit(&data->args);
if (status) {
put_rpccred(data->cred);
put_cred(data->cred);
spin_lock(&inode->i_lock);
set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags);
if (end_pos > nfsi->layout->plh_lwb)

10
fs/nfs/pnfs.h
View file

@ -200,7 +200,7 @@ struct pnfs_layout_hdr {
u32 plh_return_seq;
enum pnfs_iomode plh_return_iomode;
loff_t plh_lwb; /* last write byte for layoutcommit */
struct rpc_cred *plh_lc_cred; /* layoutcommit cred */
const struct cred *plh_lc_cred; /* layoutcommit cred */
struct inode *plh_inode;
};
@ -230,7 +230,7 @@ extern void pnfs_unregister_layoutdriver(struct pnfs_layoutdriver_type *);
extern size_t max_response_pages(struct nfs_server *server);
extern int nfs4_proc_getdeviceinfo(struct nfs_server *server,
struct pnfs_device *dev,
struct rpc_cred *cred);
const struct cred *cred);
extern struct pnfs_layout_segment* nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout);
extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync);
@ -280,7 +280,7 @@ int pnfs_mark_layout_stateid_invalid(struct pnfs_layout_hdr *lo,
bool pnfs_roc(struct inode *ino,
struct nfs4_layoutreturn_args *args,
struct nfs4_layoutreturn_res *res,
const struct rpc_cred *cred);
const struct cred *cred);
void pnfs_roc_release(struct nfs4_layoutreturn_args *args,
struct nfs4_layoutreturn_res *res,
int ret);
@ -343,7 +343,7 @@ struct nfs4_deviceid_node {
struct nfs4_deviceid_node *
nfs4_find_get_deviceid(struct nfs_server *server,
const struct nfs4_deviceid *id, struct rpc_cred *cred,
const struct nfs4_deviceid *id, const struct cred *cred,
gfp_t gfp_mask);
void nfs4_delete_deviceid(const struct pnfs_layoutdriver_type *, const struct nfs_client *, const struct nfs4_deviceid *);
void nfs4_init_deviceid_node(struct nfs4_deviceid_node *, struct nfs_server *,
@ -694,7 +694,7 @@ static inline bool
pnfs_roc(struct inode *ino,
struct nfs4_layoutreturn_args *args,
struct nfs4_layoutreturn_res *res,
const struct rpc_cred *cred)
const struct cred *cred)
{
return false;
}

4
fs/nfs/pnfs_dev.c
View file

@ -94,7 +94,7 @@ _lookup_deviceid(const struct pnfs_layoutdriver_type *ld,
static struct nfs4_deviceid_node *
nfs4_get_device_info(struct nfs_server *server,
const struct nfs4_deviceid *dev_id,
struct rpc_cred *cred, gfp_t gfp_flags)
const struct cred *cred, gfp_t gfp_flags)
{
struct nfs4_deviceid_node *d = NULL;
struct pnfs_device *pdev = NULL;
@ -184,7 +184,7 @@ __nfs4_find_get_deviceid(struct nfs_server *server,
struct nfs4_deviceid_node *
nfs4_find_get_deviceid(struct nfs_server *server,
const struct nfs4_deviceid *id, struct rpc_cred *cred,
const struct nfs4_deviceid *id, const struct cred *cred,
gfp_t gfp_mask)
{
long hash = nfs4_deviceid_hash(id);

2
fs/nfs/pnfs_nfs.c
View file

@ -686,7 +686,7 @@ static int _nfs4_pnfs_v4_ds_connect(struct nfs_server *mds_srv,
rpc_clnt_setup_test_and_add_xprt,
&rpcdata);
if (xprtdata.cred)
put_rpccred(xprtdata.cred);
put_cred(xprtdata.cred);
} else {
clp = nfs4_set_ds_client(mds_srv,
(struct sockaddr *)&da->da_addr,

9
fs/nfs/proc.c
View file

@ -500,25 +500,18 @@ nfs_proc_readdir(struct dentry *dentry, const struct cred *cred,
.count = count,
.pages = pages,
};
struct auth_cred acred = {
.cred = cred,
};
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_READDIR],
.rpc_argp = &arg,
.rpc_cred = rpc_lookup_generic_cred(&acred,
0, GFP_NOFS),
.rpc_cred = cred,
};
int status;
dprintk("NFS call readdir %d\n", (unsigned int)cookie);
if (!msg.rpc_cred)
return -ENOMEM;
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_invalidate_atime(dir);
put_rpccred(msg.rpc_cred);
dprintk("NFS reply readdir: %d\n", status);
return status;
}

15
fs/nfs/unlink.c
View file

@ -31,7 +31,7 @@
static void
nfs_free_unlinkdata(struct nfs_unlinkdata *data)
{
put_rpccred(data->cred);
put_cred(data->cred);
kfree(data->args.name.name);
kfree(data);
}
@ -177,11 +177,7 @@ nfs_async_unlink(struct dentry *dentry, const struct qstr *name)
goto out_free;
data->args.name.len = name->len;
data->cred = rpc_lookup_cred();
if (IS_ERR(data->cred)) {
status = PTR_ERR(data->cred);
goto out_free_name;
}
data->cred = get_current_cred();
data->res.dir_attr = &data->dir_attr;
init_waitqueue_head(&data->wq);
@ -202,8 +198,7 @@ nfs_async_unlink(struct dentry *dentry, const struct qstr *name)
return 0;
out_unlock:
spin_unlock(&dentry->d_lock);
put_rpccred(data->cred);
out_free_name:
put_cred(data->cred);
kfree(data->args.name.name);
out_free:
kfree(data);
@ -307,7 +302,7 @@ static void nfs_async_rename_release(void *calldata)
iput(data->old_dir);
iput(data->new_dir);
nfs_sb_deactive(sb);
put_rpccred(data->cred);
put_cred(data->cred);
kfree(data);
}
@ -352,7 +347,7 @@ nfs_async_rename(struct inode *old_dir, struct inode *new_dir,
return ERR_PTR(-ENOMEM);
task_setup_data.callback_data = data;
data->cred = rpc_lookup_cred();
data->cred = get_current_cred();
if (IS_ERR(data->cred)) {
struct rpc_task *task = ERR_CAST(data->cred);
kfree(data);

2
fs/nfs/write.c
View file

@ -1249,7 +1249,7 @@ bool nfs_ctx_key_to_expire(struct nfs_open_context *ctx, struct inode *inode)
struct rpc_auth *auth = NFS_SERVER(inode)->client->cl_auth;
struct rpc_cred *cred = ctx->ll_cred;
struct auth_cred acred = {
.cred = ctx->cred->cr_cred,
.cred = ctx->cred,
};
if (cred && !cred->cr_ops->crmatch(&acred, cred, 0)) {

16
fs/nfsd/nfs4callback.c
View file

@ -844,18 +844,15 @@ static int max_cb_time(struct net *net)
return max(nn->nfsd4_lease/10, (time_t)1) * HZ;
}
static struct rpc_cred *get_backchannel_cred(struct nfs4_client *clp, struct rpc_clnt *client, struct nfsd4_session *ses)
static const struct cred *get_backchannel_cred(struct nfs4_client *clp, struct rpc_clnt *client, struct nfsd4_session *ses)
{
if (clp->cl_minorversion == 0) {
client->cl_principal = clp->cl_cred.cr_targ_princ ?
clp->cl_cred.cr_targ_princ : "nfs";
return get_rpccred(rpc_machine_cred());
return get_cred(rpc_machine_cred());
} else {
struct rpc_auth *auth = client->cl_auth;
struct auth_cred acred = {};
struct cred *kcred;
struct rpc_cred *ret;
kcred = prepare_kernel_cred(NULL);
if (!kcred)
@ -863,10 +860,7 @@ static struct rpc_cred *get_backchannel_cred(struct nfs4_client *clp, struct rpc
kcred->uid = ses->se_cb_sec.uid;
kcred->gid = ses->se_cb_sec.gid;
acred.cred = kcred;
ret = auth->au_ops->lookup_cred(client->cl_auth, &acred, 0);
put_cred(kcred);
return ret;
return kcred;
}
}
@ -889,7 +883,7 @@ static int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *c
.flags = (RPC_CLNT_CREATE_NOPING | RPC_CLNT_CREATE_QUIET),
};
struct rpc_clnt *client;
struct rpc_cred *cred;
const struct cred *cred;
if (clp->cl_minorversion == 0) {
if (!clp->cl_cred.cr_principal &&
@ -1219,7 +1213,7 @@ static void nfsd4_process_cb_update(struct nfsd4_callback *cb)
if (clp->cl_cb_client) {
rpc_shutdown_client(clp->cl_cb_client);
clp->cl_cb_client = NULL;
put_rpccred(clp->cl_cb_cred);
put_cred(clp->cl_cb_cred);
clp->cl_cb_cred = NULL;
}
if (clp->cl_cb_conn.cb_xprt) {

2
fs/nfsd/state.h
View file

@ -327,7 +327,7 @@ struct nfs4_client {
#define NFSD4_CLIENT_CB_FLAG_MASK (1 << NFSD4_CLIENT_CB_UPDATE | \
1 << NFSD4_CLIENT_CB_KILL)
unsigned long cl_flags;
struct rpc_cred *cl_cb_cred;
const struct cred *cl_cb_cred;
struct rpc_clnt *cl_cb_client;
u32 cl_cb_ident;
#define NFSD4_CB_UP 0

6
include/linux/nfs_fs.h
View file

@ -70,7 +70,7 @@ struct nfs_open_context {
struct nfs_lock_context lock_context;
fl_owner_t flock_owner;
struct dentry *dentry;
struct rpc_cred *cred;
const struct cred *cred;
struct rpc_cred *ll_cred; /* low-level cred - use to check for expiry */
struct nfs4_state *state;
fmode_t mode;
@ -391,7 +391,7 @@ extern void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
struct nfs4_label *label);
extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
extern void put_nfs_open_context(struct nfs_open_context *ctx);
extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode);
extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, const struct cred *cred, fmode_t mode);
extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode, struct file *filp);
extern void nfs_inode_attach_open_context(struct nfs_open_context *ctx);
extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx);
@ -462,7 +462,7 @@ static inline struct nfs_open_context *nfs_file_open_context(struct file *filp)
return filp->private_data;
}
static inline struct rpc_cred *nfs_file_cred(struct file *file)
static inline const struct cred *nfs_file_cred(struct file *file)
{
if (file != NULL) {
struct nfs_open_context *ctx =

14
include/linux/nfs_xdr.h
View file

@ -270,7 +270,7 @@ struct nfs4_layoutget_res {
struct nfs4_layoutget {
struct nfs4_layoutget_args args;
struct nfs4_layoutget_res res;
struct rpc_cred *cred;
const struct cred *cred;
gfp_t gfp_flags;
};
@ -309,7 +309,7 @@ struct nfs4_layoutcommit_data {
struct rpc_task task;
struct nfs_fattr fattr;
struct list_head lseg_list;
struct rpc_cred *cred;
const struct cred *cred;
struct inode *inode;
struct nfs4_layoutcommit_args args;
struct nfs4_layoutcommit_res res;
@ -334,7 +334,7 @@ struct nfs4_layoutreturn_res {
struct nfs4_layoutreturn {
struct nfs4_layoutreturn_args args;
struct nfs4_layoutreturn_res res;
struct rpc_cred *cred;
const struct cred *cred;
struct nfs_client *clp;
struct inode *inode;
int rpc_status;
@ -1469,7 +1469,7 @@ enum {
struct nfs_io_completion;
struct nfs_pgio_header {
struct inode *inode;
struct rpc_cred *cred;
const struct cred *cred;
struct list_head pages;
struct nfs_page *req;
struct nfs_writeverf verf; /* Used for writes */
@ -1529,7 +1529,7 @@ struct nfs_commit_info {
struct nfs_commit_data {
struct rpc_task task;
struct inode *inode;
struct rpc_cred *cred;
const struct cred *cred;
struct nfs_fattr fattr;
struct nfs_writeverf verf;
struct list_head pages; /* Coalesced requests we wish to flush */
@ -1560,7 +1560,7 @@ struct nfs_unlinkdata {
struct nfs_removeres res;
struct dentry *dentry;
wait_queue_head_t wq;
struct rpc_cred *cred;
const struct cred *cred;
struct nfs_fattr dir_attr;
long timeout;
};
@ -1568,7 +1568,7 @@ struct nfs_unlinkdata {
struct nfs_renamedata {
struct nfs_renameargs args;
struct nfs_renameres res;
struct rpc_cred *cred;
const struct cred *cred;
struct inode *old_dir;
struct dentry *old_dentry;
struct nfs_fattr old_fattr;

18
include/linux/sunrpc/auth.h
View file

@ -67,7 +67,7 @@ struct rpc_cred {
#define RPCAUTH_CRED_HASHED 2
#define RPCAUTH_CRED_NEGATIVE 3
struct rpc_cred *rpc_machine_cred(void);
const struct cred *rpc_machine_cred(void);
/*
* Client authentication handle
@ -196,21 +196,5 @@ struct rpc_cred *get_rpccred(struct rpc_cred *cred)
return NULL;
}
/**
* get_rpccred_rcu - get a reference to a cred using rcu-protected pointer
* @cred: cred of which to take a reference
*
* In some cases, we may have a pointer to a credential to which we
* want to take a reference, but don't already have one. Because these
* objects are freed using RCU, we can access the cr_count while its
* on its way to destruction and only take a reference if it's not already
* zero.
*/
static inline struct rpc_cred *
get_rpccred_rcu(struct rpc_cred *cred)
{
return get_rpccred(cred);
}
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_AUTH_H */

2
include/linux/sunrpc/sched.h
View file

@ -26,7 +26,7 @@ struct rpc_message {
const struct rpc_procinfo *rpc_proc; /* Procedure information */
void * rpc_argp; /* Arguments */
void * rpc_resp; /* Result */
struct rpc_cred * rpc_cred; /* Credentials */
const struct cred * rpc_cred; /* Credentials */
};
struct rpc_call_ops;

14
net/sunrpc/auth.c
View file

@ -39,15 +39,15 @@ static const struct rpc_authops __rcu *auth_flavors[RPC_AUTH_MAXFLAVOR] = {
static LIST_HEAD(cred_unused);
static unsigned long number_cred_unused;
static struct rpc_cred machine_cred = {
.cr_count = REFCOUNT_INIT(1),
static struct cred machine_cred = {
.usage = ATOMIC_INIT(1),
};
/*
* Return the machine_cred pointer to be used whenever
* the a generic machine credential is needed.
*/
struct rpc_cred *rpc_machine_cred(void)
const struct cred *rpc_machine_cred(void)
{
return &machine_cred;
}
@ -720,11 +720,15 @@ rpcauth_bind_new_cred(struct rpc_task *task, int lookupflags)
}
static int
rpcauth_bindcred(struct rpc_task *task, struct rpc_cred *cred, int flags)
rpcauth_bindcred(struct rpc_task *task, const struct cred *cred, int flags)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_cred *new = NULL;
int lookupflags = 0;
struct rpc_auth *auth = task->tk_client->cl_auth;
struct auth_cred acred = {
.cred = cred,
};
if (flags & RPC_TASK_ASYNC)
lookupflags |= RPCAUTH_LOOKUP_NEW;
@ -733,7 +737,7 @@ rpcauth_bindcred(struct rpc_task *task, struct rpc_cred *cred, int flags)
new = task->tk_op_cred->cr_ops->crbind(task, task->tk_op_cred,
lookupflags);
else if (cred != NULL && cred != &machine_cred)
new = cred->cr_ops->crbind(task, cred, lookupflags);
new = auth->au_ops->lookup_cred(auth, &acred, lookupflags);
else if (cred == &machine_cred)
new = rpcauth_bind_machine_cred(task, lookupflags);

4
net/sunrpc/clnt.c
View file

@ -1030,7 +1030,7 @@ rpc_task_set_rpc_message(struct rpc_task *task, const struct rpc_message *msg)
task->tk_msg.rpc_argp = msg->rpc_argp;
task->tk_msg.rpc_resp = msg->rpc_resp;
if (msg->rpc_cred != NULL)
task->tk_msg.rpc_cred = get_rpccred(msg->rpc_cred);
task->tk_msg.rpc_cred = get_cred(msg->rpc_cred);
}
}
@ -2542,7 +2542,7 @@ struct rpc_task *rpc_call_null_helper(struct rpc_clnt *clnt,
.rpc_op_cred = cred,
.callback_ops = (ops != NULL) ? ops : &rpc_default_ops,
.callback_data = data,
.flags = flags,
.flags = flags | RPC_TASK_NULLCREDS,
};
return rpc_run_task(&task_setup_data);

2
net/sunrpc/sched.c
View file

@ -1074,7 +1074,7 @@ static void rpc_release_resources_task(struct rpc_task *task)
{
xprt_release(task);
if (task->tk_msg.rpc_cred) {
put_rpccred(task->tk_msg.rpc_cred);
put_cred(task->tk_msg.rpc_cred);
task->tk_msg.rpc_cred = NULL;
}
rpc_task_release_client(task);