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Commit b9d919a4 authored by Linus Torvalds's avatar Linus Torvalds
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Merge branch 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6 

* 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (89 commits)
  NFS fix the setting of exchange id flag
  NFS: Don't use vm_map_ram() in readdir
  NFSv4: Ensure continued open and lockowner name uniqueness
  NFS: Move cl_delegations to the nfs_server struct
  NFS: Introduce nfs_detach_delegations()
  NFS: Move cl_state_owners and related fields to the nfs_server struct
  NFS: Allow walking nfs_client.cl_superblocks list outside client.c
  pnfs: layout roc code
  pnfs: update nfs4_callback_recallany to handle layouts
  pnfs: add CB_LAYOUTRECALL handling
  pnfs: CB_LAYOUTRECALL xdr code
  pnfs: change lo refcounting to atomic_t
  pnfs: check that partial LAYOUTGET return is ignored
  pnfs: add layout to client list before sending rpc
  pnfs: serialize LAYOUTGET(openstateid)
  pnfs: layoutget rpc code cleanup
  pnfs: change how lsegs are removed from layout list
  pnfs: change layout state seqlock to a spinlock
  pnfs: add prefix to struct pnfs_layout_hdr fields
  pnfs: add prefix to struct pnfs_layout_segment fields
  ...
parents 7c955fca 357f54d6
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Showing with 7854 additions and 4079 deletions
fs/lockd/Makefile
View file @ b9d919a4
......@@ -4,7 +4,7 @@
obj-$(CONFIG_LOCKD) += lockd.o
lockd-objs-y := clntlock.o clntproc.o host.o svc.o svclock.o svcshare.o \
svcproc.o svcsubs.o mon.o xdr.o grace.o
lockd-objs-$(CONFIG_LOCKD_V4) += xdr4.o svc4proc.o
lockd-objs-y := clntlock.o clntproc.o clntxdr.o host.o svc.o svclock.o \
svcshare.o svcproc.o svcsubs.o mon.o xdr.o grace.o
lockd-objs-$(CONFIG_LOCKD_V4) += clnt4xdr.o xdr4.o svc4proc.o
lockd-objs := $(lockd-objs-y)
fs/lockd/clnt4xdr.c 0 → 100644
View file @ b9d919a4
This diff is collapsed.
fs/lockd/clntlock.c
View file @ b9d919a4
......@@ -79,7 +79,7 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
*/
void nlmclnt_done(struct nlm_host *host)
{
nlm_release_host(host);
nlmclnt_release_host(host);
lockd_down();
}
EXPORT_SYMBOL_GPL(nlmclnt_done);
......@@ -273,7 +273,7 @@ reclaimer(void *ptr)
spin_unlock(&nlm_blocked_lock);
/* Release host handle after use */
nlm_release_host(host);
nlmclnt_release_host(host);
lockd_down();
return 0;
}
fs/lockd/clntproc.c
View file @ b9d919a4
......@@ -58,7 +58,7 @@ static void nlm_put_lockowner(struct nlm_lockowner *lockowner)
return;
list_del(&lockowner->list);
spin_unlock(&lockowner->host->h_lock);
nlm_release_host(lockowner->host);
nlmclnt_release_host(lockowner->host);
kfree(lockowner);
}
......@@ -207,22 +207,22 @@ struct nlm_rqst *nlm_alloc_call(struct nlm_host *host)
printk("nlm_alloc_call: failed, waiting for memory\n");
schedule_timeout_interruptible(5*HZ);
}
nlm_release_host(host);
nlmclnt_release_host(host);
return NULL;
}
void nlm_release_call(struct nlm_rqst *call)
void nlmclnt_release_call(struct nlm_rqst *call)
{
if (!atomic_dec_and_test(&call->a_count))
return;
nlm_release_host(call->a_host);
nlmclnt_release_host(call->a_host);
nlmclnt_release_lockargs(call);
kfree(call);
}
static void nlmclnt_rpc_release(void *data)
{
nlm_release_call(data);
nlmclnt_release_call(data);
}
static int nlm_wait_on_grace(wait_queue_head_t *queue)
......@@ -436,7 +436,7 @@ nlmclnt_test(struct nlm_rqst *req, struct file_lock *fl)
status = nlm_stat_to_errno(req->a_res.status);
}
out:
nlm_release_call(req);
nlmclnt_release_call(req);
return status;
}
......@@ -593,7 +593,7 @@ nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
out_unblock:
nlmclnt_finish_block(block);
out:
nlm_release_call(req);
nlmclnt_release_call(req);
return status;
out_unlock:
/* Fatal error: ensure that we remove the lock altogether */
......@@ -694,7 +694,7 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
/* What to do now? I'm out of my depth... */
status = -ENOLCK;
out:
nlm_release_call(req);
nlmclnt_release_call(req);
return status;
}
......@@ -755,7 +755,7 @@ static int nlmclnt_cancel(struct nlm_host *host, int block, struct file_lock *fl
NLMPROC_CANCEL, &nlmclnt_cancel_ops);
if (status == 0 && req->a_res.status == nlm_lck_denied)
status = -ENOLCK;
nlm_release_call(req);
nlmclnt_release_call(req);
return status;
}
......
fs/lockd/clntxdr.c 0 → 100644
View file @ b9d919a4
This diff is collapsed.
fs/lockd/host.c
View file @ b9d919a4
This diff is collapsed.
fs/lockd/mon.c
View file @ b9d919a4
......@@ -401,26 +401,22 @@ void nsm_release(struct nsm_handle *nsm)
* Status Monitor wire protocol.
*/
static int encode_nsm_string(struct xdr_stream *xdr, const char *string)
static void encode_nsm_string(struct xdr_stream *xdr, const char *string)
{
const u32 len = strlen(string);
__be32 *p;
if (unlikely(len > SM_MAXSTRLEN))
return -EIO;
p = xdr_reserve_space(xdr, sizeof(u32) + len);
if (unlikely(p == NULL))
return -EIO;
BUG_ON(len > SM_MAXSTRLEN);
p = xdr_reserve_space(xdr, 4 + len);
xdr_encode_opaque(p, string, len);
return 0;
}
/*
* "mon_name" specifies the host to be monitored.
*/
static int encode_mon_name(struct xdr_stream *xdr, const struct nsm_args *argp)
static void encode_mon_name(struct xdr_stream *xdr, const struct nsm_args *argp)
{
return encode_nsm_string(xdr, argp->mon_name);
encode_nsm_string(xdr, argp->mon_name);
}
/*
......@@ -429,35 +425,25 @@ static int encode_mon_name(struct xdr_stream *xdr, const struct nsm_args *argp)
* (via the NLMPROC_SM_NOTIFY call) that the state of host "mon_name"
* has changed.
*/
static int encode_my_id(struct xdr_stream *xdr, const struct nsm_args *argp)
static void encode_my_id(struct xdr_stream *xdr, const struct nsm_args *argp)
{
int status;
__be32 *p;
status = encode_nsm_string(xdr, utsname()->nodename);
if (unlikely(status != 0))
return status;
p = xdr_reserve_space(xdr, 3 * sizeof(u32));
if (unlikely(p == NULL))
return -EIO;
*p++ = htonl(argp->prog);
*p++ = htonl(argp->vers);
*p++ = htonl(argp->proc);
return 0;
encode_nsm_string(xdr, utsname()->nodename);
p = xdr_reserve_space(xdr, 4 + 4 + 4);
*p++ = cpu_to_be32(argp->prog);
*p++ = cpu_to_be32(argp->vers);
*p = cpu_to_be32(argp->proc);
}
/*
* The "mon_id" argument specifies the non-private arguments
* of an NSMPROC_MON or NSMPROC_UNMON call.
*/
static int encode_mon_id(struct xdr_stream *xdr, const struct nsm_args *argp)
static void encode_mon_id(struct xdr_stream *xdr, const struct nsm_args *argp)
{
int status;
status = encode_mon_name(xdr, argp);
if (unlikely(status != 0))
return status;
return encode_my_id(xdr, argp);
encode_mon_name(xdr, argp);
encode_my_id(xdr, argp);
}
/*
......@@ -465,68 +451,56 @@ static int encode_mon_id(struct xdr_stream *xdr, const struct nsm_args *argp)
* by the NSMPROC_MON call. This information will be supplied in the
* NLMPROC_SM_NOTIFY call.
*/
static int encode_priv(struct xdr_stream *xdr, const struct nsm_args *argp)
static void encode_priv(struct xdr_stream *xdr, const struct nsm_args *argp)
{
__be32 *p;
p = xdr_reserve_space(xdr, SM_PRIV_SIZE);
if (unlikely(p == NULL))
return -EIO;
xdr_encode_opaque_fixed(p, argp->priv->data, SM_PRIV_SIZE);
return 0;
}
static int xdr_enc_mon(struct rpc_rqst *req, __be32 *p,
const struct nsm_args *argp)
static void nsm_xdr_enc_mon(struct rpc_rqst *req, struct xdr_stream *xdr,
const struct nsm_args *argp)
{
struct xdr_stream xdr;
int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
status = encode_mon_id(&xdr, argp);
if (unlikely(status))
return status;
return encode_priv(&xdr, argp);
encode_mon_id(xdr, argp);
encode_priv(xdr, argp);
}
static int xdr_enc_unmon(struct rpc_rqst *req, __be32 *p,
const struct nsm_args *argp)
static void nsm_xdr_enc_unmon(struct rpc_rqst *req, struct xdr_stream *xdr,
const struct nsm_args *argp)
{
struct xdr_stream xdr;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
return encode_mon_id(&xdr, argp);
encode_mon_id(xdr, argp);
}
static int xdr_dec_stat_res(struct rpc_rqst *rqstp, __be32 *p,
struct nsm_res *resp)
static int nsm_xdr_dec_stat_res(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nsm_res *resp)
{
struct xdr_stream xdr;
__be32 *p;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
p = xdr_inline_decode(&xdr, 2 * sizeof(u32));
p = xdr_inline_decode(xdr, 4 + 4);
if (unlikely(p == NULL))
return -EIO;
resp->status = ntohl(*p++);
resp->state = ntohl(*p);
resp->status = be32_to_cpup(p++);
resp->state = be32_to_cpup(p);
dprintk("lockd: xdr_dec_stat_res status %d state %d\n",
resp->status, resp->state);
dprintk("lockd: %s status %d state %d\n",
__func__, resp->status, resp->state);
return 0;
}
static int xdr_dec_stat(struct rpc_rqst *rqstp, __be32 *p,
struct nsm_res *resp)
static int nsm_xdr_dec_stat(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nsm_res *resp)
{
struct xdr_stream xdr;
__be32 *p;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
p = xdr_inline_decode(&xdr, sizeof(u32));
p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return -EIO;
resp->state = ntohl(*p);
resp->state = be32_to_cpup(p);
dprintk("lockd: xdr_dec_stat state %d\n", resp->state);
dprintk("lockd: %s state %d\n", __func__, resp->state);
return 0;
}
......@@ -542,8 +516,8 @@ static int xdr_dec_stat(struct rpc_rqst *rqstp, __be32 *p,
static struct rpc_procinfo nsm_procedures[] = {
[NSMPROC_MON] = {
.p_proc = NSMPROC_MON,
.p_encode = (kxdrproc_t)xdr_enc_mon,
.p_decode = (kxdrproc_t)xdr_dec_stat_res,
.p_encode = (kxdreproc_t)nsm_xdr_enc_mon,
.p_decode = (kxdrdproc_t)nsm_xdr_dec_stat_res,
.p_arglen = SM_mon_sz,
.p_replen = SM_monres_sz,
.p_statidx = NSMPROC_MON,
......@@ -551,8 +525,8 @@ static struct rpc_procinfo nsm_procedures[] = {
},
[NSMPROC_UNMON] = {
.p_proc = NSMPROC_UNMON,
.p_encode = (kxdrproc_t)xdr_enc_unmon,
.p_decode = (kxdrproc_t)xdr_dec_stat,
.p_encode = (kxdreproc_t)nsm_xdr_enc_unmon,
.p_decode = (kxdrdproc_t)nsm_xdr_dec_stat,
.p_arglen = SM_mon_id_sz,
.p_replen = SM_unmonres_sz,
.p_statidx = NSMPROC_UNMON,
......
fs/lockd/svc4proc.c
View file @ b9d919a4
......@@ -51,7 +51,7 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
return 0;
no_locks:
nlm_release_host(host);
nlmsvc_release_host(host);
if (error)
return error;
return nlm_lck_denied_nolocks;
......@@ -92,7 +92,7 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
else
dprintk("lockd: TEST4 status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rc;
}
......@@ -134,7 +134,7 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
else
dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rc;
}
......@@ -164,7 +164,7 @@ nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = nlmsvc_cancel_blocked(file, &argp->lock);
dprintk("lockd: CANCEL status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
......@@ -197,7 +197,7 @@ nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = nlmsvc_unlock(file, &argp->lock);
dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
......@@ -229,7 +229,7 @@ static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
static void nlm4svc_callback_release(void *data)
{
nlm_release_call(data);
nlmsvc_release_call(data);
}
static const struct rpc_call_ops nlm4svc_callback_ops = {
......@@ -261,7 +261,7 @@ static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args
stat = func(rqstp, argp, &call->a_res);
if (stat != 0) {
nlm_release_call(call);
nlmsvc_release_call(call);
return stat;
}
......@@ -334,7 +334,7 @@ nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = nlmsvc_share_file(host, file, argp);
dprintk("lockd: SHARE status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
......@@ -367,7 +367,7 @@ nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = nlmsvc_unshare_file(host, file, argp);
dprintk("lockd: UNSHARE status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
......@@ -399,7 +399,7 @@ nlm4svc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
return rpc_success;
nlmsvc_free_host_resources(host);
nlm_release_host(host);
nlmsvc_release_host(host);
return rpc_success;
}
......
fs/lockd/svclock.c
View file @ b9d919a4
......@@ -46,6 +46,7 @@ static void nlmsvc_remove_block(struct nlm_block *block);
static int nlmsvc_setgrantargs(struct nlm_rqst *call, struct nlm_lock *lock);
static void nlmsvc_freegrantargs(struct nlm_rqst *call);
static const struct rpc_call_ops nlmsvc_grant_ops;
static const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie);
/*
* The list of blocked locks to retry
......@@ -233,7 +234,7 @@ nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_host *host,
failed_free:
kfree(block);
failed:
nlm_release_call(call);
nlmsvc_release_call(call);
return NULL;
}
......@@ -266,7 +267,7 @@ static void nlmsvc_free_block(struct kref *kref)
mutex_unlock(&file->f_mutex);
nlmsvc_freegrantargs(block->b_call);
nlm_release_call(block->b_call);
nlmsvc_release_call(block->b_call);
nlm_release_file(block->b_file);
kfree(block->b_fl);
kfree(block);
......@@ -934,3 +935,32 @@ nlmsvc_retry_blocked(void)
return timeout;
}
#ifdef RPC_DEBUG
static const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie)
{
/*
* We can get away with a static buffer because we're only
* called with BKL held.
*/
static char buf[2*NLM_MAXCOOKIELEN+1];
unsigned int i, len = sizeof(buf);
char *p = buf;
len--; /* allow for trailing \0 */
if (len < 3)
return "???";
for (i = 0 ; i < cookie->len ; i++) {
if (len < 2) {
strcpy(p-3, "...");
break;
}
sprintf(p, "%02x", cookie->data[i]);
p += 2;
len -= 2;
}
*p = '\0';
return buf;
}
#endif
fs/lockd/svcproc.c
View file @ b9d919a4
......@@ -80,7 +80,7 @@ nlmsvc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
return 0;
no_locks:
nlm_release_host(host);
nlmsvc_release_host(host);
if (error)
return error;
return nlm_lck_denied_nolocks;
......@@ -122,7 +122,7 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
dprintk("lockd: TEST status %d vers %d\n",
ntohl(resp->status), rqstp->rq_vers);
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rc;
}
......@@ -164,7 +164,7 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
else
dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rc;
}
......@@ -194,7 +194,7 @@ nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = cast_status(nlmsvc_cancel_blocked(file, &argp->lock));
dprintk("lockd: CANCEL status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
......@@ -227,7 +227,7 @@ nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = cast_status(nlmsvc_unlock(file, &argp->lock));
dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
......@@ -257,9 +257,17 @@ static void nlmsvc_callback_exit(struct rpc_task *task, void *data)
-task->tk_status);
}
void nlmsvc_release_call(struct nlm_rqst *call)
{
if (!atomic_dec_and_test(&call->a_count))
return;
nlmsvc_release_host(call->a_host);
kfree(call);
}
static void nlmsvc_callback_release(void *data)
{
nlm_release_call(data);
nlmsvc_release_call(data);
}
static const struct rpc_call_ops nlmsvc_callback_ops = {
......@@ -291,7 +299,7 @@ static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args
stat = func(rqstp, argp, &call->a_res);
if (stat != 0) {
nlm_release_call(call);
nlmsvc_release_call(call);
return stat;
}
......@@ -366,7 +374,7 @@ nlmsvc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = cast_status(nlmsvc_share_file(host, file, argp));
dprintk("lockd: SHARE status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
......@@ -399,7 +407,7 @@ nlmsvc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = cast_status(nlmsvc_unshare_file(host, file, argp));
dprintk("lockd: UNSHARE status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
......@@ -431,7 +439,7 @@ nlmsvc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
return rpc_success;
nlmsvc_free_host_resources(host);
nlm_release_host(host);
nlmsvc_release_host(host);
return rpc_success;
}
......
fs/lockd/xdr.c
View file @ b9d919a4
......@@ -148,37 +148,6 @@ nlm_decode_lock(__be32 *p, struct nlm_lock *lock)
return p;
}
/*
* Encode a lock as part of an NLM call
*/
static __be32 *
nlm_encode_lock(__be32 *p, struct nlm_lock *lock)
{
struct file_lock *fl = &lock->fl;
__s32 start, len;
if (!(p = xdr_encode_string(p, lock->caller))
|| !(p = nlm_encode_fh(p, &lock->fh))
|| !(p = nlm_encode_oh(p, &lock->oh)))
return NULL;
if (fl->fl_start > NLM_OFFSET_MAX
|| (fl->fl_end > NLM_OFFSET_MAX && fl->fl_end != OFFSET_MAX))
return NULL;
start = loff_t_to_s32(fl->fl_start);
if (fl->fl_end == OFFSET_MAX)
len = 0;
else
len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1);
*p++ = htonl(lock->svid);
*p++ = htonl(start);
*p++ = htonl(len);
return p;
}
/*
* Encode result of a TEST/TEST_MSG call
*/
......@@ -372,259 +341,3 @@ nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
{
return xdr_ressize_check(rqstp, p);
}
/*
* Now, the client side XDR functions
*/
#ifdef NLMCLNT_SUPPORT_SHARES
static int
nlmclt_decode_void(struct rpc_rqst *req, u32 *p, void *ptr)
{
return 0;
}
#endif
static int
nlmclt_encode_testargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
{
struct nlm_lock *lock = &argp->lock;
if (!(p = nlm_encode_cookie(p, &argp->cookie)))
return -EIO;
*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
if (!(p = nlm_encode_lock(p, lock)))
return -EIO;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlmclt_decode_testres(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
{
if (!(p = nlm_decode_cookie(p, &resp->cookie)))
return -EIO;
resp->status = *p++;
if (resp->status == nlm_lck_denied) {
struct file_lock *fl = &resp->lock.fl;
u32 excl;
s32 start, len, end;
memset(&resp->lock, 0, sizeof(resp->lock));
locks_init_lock(fl);
excl = ntohl(*p++);
resp->lock.svid = ntohl(*p++);
fl->fl_pid = (pid_t)resp->lock.svid;
if (!(p = nlm_decode_oh(p, &resp->lock.oh)))
return -EIO;
fl->fl_flags = FL_POSIX;
fl->fl_type = excl? F_WRLCK : F_RDLCK;
start = ntohl(*p++);
len = ntohl(*p++);
end = start + len - 1;
fl->fl_start = s32_to_loff_t(start);
if (len == 0 || end < 0)
fl->fl_end = OFFSET_MAX;
else
fl->fl_end = s32_to_loff_t(end);
}
return 0;
}
static int
nlmclt_encode_lockargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
{
struct nlm_lock *lock = &argp->lock;
if (!(p = nlm_encode_cookie(p, &argp->cookie)))
return -EIO;
*p++ = argp->block? xdr_one : xdr_zero;
*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
if (!(p = nlm_encode_lock(p, lock)))
return -EIO;
*p++ = argp->reclaim? xdr_one : xdr_zero;
*p++ = htonl(argp->state);
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlmclt_encode_cancargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
{
struct nlm_lock *lock = &argp->lock;
if (!(p = nlm_encode_cookie(p, &argp->cookie)))
return -EIO;
*p++ = argp->block? xdr_one : xdr_zero;
*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
if (!(p = nlm_encode_lock(p, lock)))
return -EIO;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlmclt_encode_unlockargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
{
struct nlm_lock *lock = &argp->lock;
if (!(p = nlm_encode_cookie(p, &argp->cookie)))
return -EIO;
if (!(p = nlm_encode_lock(p, lock)))
return -EIO;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlmclt_encode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
{
if (!(p = nlm_encode_cookie(p, &resp->cookie)))
return -EIO;
*p++ = resp->status;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlmclt_encode_testres(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
{
if (!(p = nlm_encode_testres(p, resp)))
return -EIO;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlmclt_decode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
{
if (!(p = nlm_decode_cookie(p, &resp->cookie)))
return -EIO;
resp->status = *p++;
return 0;
}
#if (NLMCLNT_OHSIZE > XDR_MAX_NETOBJ)
# error "NLM host name cannot be larger than XDR_MAX_NETOBJ!"
#endif
/*
* Buffer requirements for NLM
*/
#define NLM_void_sz 0
#define NLM_cookie_sz 1+XDR_QUADLEN(NLM_MAXCOOKIELEN)
#define NLM_caller_sz 1+XDR_QUADLEN(NLMCLNT_OHSIZE)
#define NLM_owner_sz 1+XDR_QUADLEN(NLMCLNT_OHSIZE)
#define NLM_fhandle_sz 1+XDR_QUADLEN(NFS2_FHSIZE)
#define NLM_lock_sz 3+NLM_caller_sz+NLM_owner_sz+NLM_fhandle_sz
#define NLM_holder_sz 4+NLM_owner_sz
#define NLM_testargs_sz NLM_cookie_sz+1+NLM_lock_sz
#define NLM_lockargs_sz NLM_cookie_sz+4+NLM_lock_sz
#define NLM_cancargs_sz NLM_cookie_sz+2+NLM_lock_sz
#define NLM_unlockargs_sz NLM_cookie_sz+NLM_lock_sz
#define NLM_testres_sz NLM_cookie_sz+1+NLM_holder_sz
#define NLM_res_sz NLM_cookie_sz+1
#define NLM_norep_sz 0
/*
* For NLM, a void procedure really returns nothing
*/
#define nlmclt_decode_norep NULL
#define PROC(proc, argtype, restype) \
[NLMPROC_##proc] = { \
.p_proc = NLMPROC_##proc, \
.p_encode = (kxdrproc_t) nlmclt_encode_##argtype, \
.p_decode = (kxdrproc_t) nlmclt_decode_##restype, \
.p_arglen = NLM_##argtype##_sz, \
.p_replen = NLM_##restype##_sz, \
.p_statidx = NLMPROC_##proc, \
.p_name = #proc, \
}
static struct rpc_procinfo nlm_procedures[] = {
PROC(TEST, testargs, testres),
PROC(LOCK, lockargs, res),
PROC(CANCEL, cancargs, res),
PROC(UNLOCK, unlockargs, res),
PROC(GRANTED, testargs, res),
PROC(TEST_MSG, testargs, norep),
PROC(LOCK_MSG, lockargs, norep),
PROC(CANCEL_MSG, cancargs, norep),
PROC(UNLOCK_MSG, unlockargs, norep),
PROC(GRANTED_MSG, testargs, norep),
PROC(TEST_RES, testres, norep),
PROC(LOCK_RES, res, norep),
PROC(CANCEL_RES, res, norep),
PROC(UNLOCK_RES, res, norep),
PROC(GRANTED_RES, res, norep),
#ifdef NLMCLNT_SUPPORT_SHARES
PROC(SHARE, shareargs, shareres),
PROC(UNSHARE, shareargs, shareres),
PROC(NM_LOCK, lockargs, res),
PROC(FREE_ALL, notify, void),
#endif
};
static struct rpc_version nlm_version1 = {
.number = 1,
.nrprocs = 16,
.procs = nlm_procedures,
};
static struct rpc_version nlm_version3 = {
.number = 3,
.nrprocs = 24,
.procs = nlm_procedures,
};
static struct rpc_version * nlm_versions[] = {
[1] = &nlm_version1,
[3] = &nlm_version3,
#ifdef CONFIG_LOCKD_V4
[4] = &nlm_version4,
#endif
};
static struct rpc_stat nlm_stats;
struct rpc_program nlm_program = {
.name = "lockd",
.number = NLM_PROGRAM,
.nrvers = ARRAY_SIZE(nlm_versions),
.version = nlm_versions,
.stats = &nlm_stats,
};
#ifdef RPC_DEBUG
const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie)
{
/*
* We can get away with a static buffer because we're only
* called with BKL held.
*/
static char buf[2*NLM_MAXCOOKIELEN+1];
unsigned int i, len = sizeof(buf);
char *p = buf;
len--; /* allow for trailing \0 */
if (len < 3)
return "???";
for (i = 0 ; i < cookie->len ; i++) {
if (len < 2) {
strcpy(p-3, "...");
break;
}
sprintf(p, "%02x", cookie->data[i]);
p += 2;
len -= 2;
}
*p = '\0';
return buf;
}
#endif
fs/lockd/xdr4.c
View file @ b9d919a4
......@@ -93,15 +93,6 @@ nlm4_decode_fh(__be32 *p, struct nfs_fh *f)
return p + XDR_QUADLEN(f->size);
}
static __be32 *
nlm4_encode_fh(__be32 *p, struct nfs_fh *f)
{
*p++ = htonl(f->size);
if (f->size) p[XDR_QUADLEN(f->size)-1] = 0; /* don't leak anything */
memcpy(p, f->data, f->size);
return p + XDR_QUADLEN(f->size);
}
/*
* Encode and decode owner handle
*/
......@@ -111,12 +102,6 @@ nlm4_decode_oh(__be32 *p, struct xdr_netobj *oh)
return xdr_decode_netobj(p, oh);
}
static __be32 *
nlm4_encode_oh(__be32 *p, struct xdr_netobj *oh)
{
return xdr_encode_netobj(p, oh);
}
static __be32 *
nlm4_decode_lock(__be32 *p, struct nlm_lock *lock)
{
......@@ -149,38 +134,6 @@ nlm4_decode_lock(__be32 *p, struct nlm_lock *lock)
return p;
}
/*
* Encode a lock as part of an NLM call
*/
static __be32 *
nlm4_encode_lock(__be32 *p, struct nlm_lock *lock)
{
struct file_lock *fl = &lock->fl;
__s64 start, len;
if (!(p = xdr_encode_string(p, lock->caller))
|| !(p = nlm4_encode_fh(p, &lock->fh))
|| !(p = nlm4_encode_oh(p, &lock->oh)))
return NULL;
if (fl->fl_start > NLM4_OFFSET_MAX
|| (fl->fl_end > NLM4_OFFSET_MAX && fl->fl_end != OFFSET_MAX))
return NULL;
*p++ = htonl(lock->svid);
start = loff_t_to_s64(fl->fl_start);
if (fl->fl_end == OFFSET_MAX)
len = 0;
else
len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
p = xdr_encode_hyper(p, start);
p = xdr_encode_hyper(p, len);
return p;
}
/*
* Encode result of a TEST/TEST_MSG call
*/
......@@ -379,211 +332,3 @@ nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
{
return xdr_ressize_check(rqstp, p);
}
/*
* Now, the client side XDR functions
*/
#ifdef NLMCLNT_SUPPORT_SHARES
static int
nlm4clt_decode_void(struct rpc_rqst *req, __be32 *p, void *ptr)
{
return 0;
}
#endif
static int
nlm4clt_encode_testargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
{
struct nlm_lock *lock = &argp->lock;
if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
return -EIO;
*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
if (!(p = nlm4_encode_lock(p, lock)))
return -EIO;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlm4clt_decode_testres(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
{
if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
return -EIO;
resp->status = *p++;
if (resp->status == nlm_lck_denied) {
struct file_lock *fl = &resp->lock.fl;
u32 excl;
__u64 start, len;
__s64 end;
memset(&resp->lock, 0, sizeof(resp->lock));
locks_init_lock(fl);
excl = ntohl(*p++);
resp->lock.svid = ntohl(*p++);
fl->fl_pid = (pid_t)resp->lock.svid;
if (!(p = nlm4_decode_oh(p, &resp->lock.oh)))
return -EIO;
fl->fl_flags = FL_POSIX;
fl->fl_type = excl? F_WRLCK : F_RDLCK;
p = xdr_decode_hyper(p, &start);
p = xdr_decode_hyper(p, &len);
end = start + len - 1;
fl->fl_start = s64_to_loff_t(start);
if (len == 0 || end < 0)
fl->fl_end = OFFSET_MAX;
else
fl->fl_end = s64_to_loff_t(end);
}
return 0;
}
static int
nlm4clt_encode_lockargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
{
struct nlm_lock *lock = &argp->lock;
if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
return -EIO;
*p++ = argp->block? xdr_one : xdr_zero;
*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
if (!(p = nlm4_encode_lock(p, lock)))
return -EIO;
*p++ = argp->reclaim? xdr_one : xdr_zero;
*p++ = htonl(argp->state);
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlm4clt_encode_cancargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
{
struct nlm_lock *lock = &argp->lock;
if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
return -EIO;
*p++ = argp->block? xdr_one : xdr_zero;
*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
if (!(p = nlm4_encode_lock(p, lock)))
return -EIO;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlm4clt_encode_unlockargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
{
struct nlm_lock *lock = &argp->lock;
if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
return -EIO;
if (!(p = nlm4_encode_lock(p, lock)))
return -EIO;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlm4clt_encode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
{
if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
return -EIO;
*p++ = resp->status;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlm4clt_encode_testres(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
{
if (!(p = nlm4_encode_testres(p, resp)))
return -EIO;
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
static int
nlm4clt_decode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
{
if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
return -EIO;
resp->status = *p++;
return 0;
}
#if (NLMCLNT_OHSIZE > XDR_MAX_NETOBJ)
# error "NLM host name cannot be larger than XDR_MAX_NETOBJ!"
#endif
#if (NLMCLNT_OHSIZE > NLM_MAXSTRLEN)
# error "NLM host name cannot be larger than NLM's maximum string length!"
#endif
/*
* Buffer requirements for NLM
*/
#define NLM4_void_sz 0
#define NLM4_cookie_sz 1+XDR_QUADLEN(NLM_MAXCOOKIELEN)
#define NLM4_caller_sz 1+XDR_QUADLEN(NLMCLNT_OHSIZE)
#define NLM4_owner_sz 1+XDR_QUADLEN(NLMCLNT_OHSIZE)
#define NLM4_fhandle_sz 1+XDR_QUADLEN(NFS3_FHSIZE)
#define NLM4_lock_sz 5+NLM4_caller_sz+NLM4_owner_sz+NLM4_fhandle_sz
#define NLM4_holder_sz 6+NLM4_owner_sz
#define NLM4_testargs_sz NLM4_cookie_sz+1+NLM4_lock_sz
#define NLM4_lockargs_sz NLM4_cookie_sz+4+NLM4_lock_sz
#define NLM4_cancargs_sz NLM4_cookie_sz+2+NLM4_lock_sz
#define NLM4_unlockargs_sz NLM4_cookie_sz+NLM4_lock_sz
#define NLM4_testres_sz NLM4_cookie_sz+1+NLM4_holder_sz
#define NLM4_res_sz NLM4_cookie_sz+1
#define NLM4_norep_sz 0
/*
* For NLM, a void procedure really returns nothing
*/
#define nlm4clt_decode_norep NULL
#define PROC(proc, argtype, restype) \
[NLMPROC_##proc] = { \
.p_proc = NLMPROC_##proc, \
.p_encode = (kxdrproc_t) nlm4clt_encode_##argtype, \
.p_decode = (kxdrproc_t) nlm4clt_decode_##restype, \
.p_arglen = NLM4_##argtype##_sz, \
.p_replen = NLM4_##restype##_sz, \
.p_statidx = NLMPROC_##proc, \
.p_name = #proc, \
}
static struct rpc_procinfo nlm4_procedures[] = {
PROC(TEST, testargs, testres),
PROC(LOCK, lockargs, res),
PROC(CANCEL, cancargs, res),
PROC(UNLOCK, unlockargs, res),
PROC(GRANTED, testargs, res),
PROC(TEST_MSG, testargs, norep),
PROC(LOCK_MSG, lockargs, norep),
PROC(CANCEL_MSG, cancargs, norep),
PROC(UNLOCK_MSG, unlockargs, norep),
PROC(GRANTED_MSG, testargs, norep),
PROC(TEST_RES, testres, norep),
PROC(LOCK_RES, res, norep),
PROC(CANCEL_RES, res, norep),
PROC(UNLOCK_RES, res, norep),
PROC(GRANTED_RES, res, norep),
#ifdef NLMCLNT_SUPPORT_SHARES
PROC(SHARE, shareargs, shareres),
PROC(UNSHARE, shareargs, shareres),
PROC(NM_LOCK, lockargs, res),
PROC(FREE_ALL, notify, void),
#endif
};
struct rpc_version nlm_version4 = {
.number = 4,
.nrprocs = 24,
.procs = nlm4_procedures,
};
fs/nfs/callback.c
View file @ b9d919a4
......@@ -16,9 +16,7 @@
#include <linux/freezer.h>
#include <linux/kthread.h>
#include <linux/sunrpc/svcauth_gss.h>
#if defined(CONFIG_NFS_V4_1)
#include <linux/sunrpc/bc_xprt.h>
#endif
#include <net/inet_sock.h>
......@@ -136,6 +134,33 @@ nfs4_callback_up(struct svc_serv *serv)
}
#if defined(CONFIG_NFS_V4_1)
/*
* * CB_SEQUENCE operations will fail until the callback sessionid is set.
* */
int nfs4_set_callback_sessionid(struct nfs_client *clp)
{
struct svc_serv *serv = clp->cl_rpcclient->cl_xprt->bc_serv;
struct nfs4_sessionid *bc_sid;
if (!serv->sv_bc_xprt)
return -EINVAL;
/* on success freed in xprt_free */
bc_sid = kmalloc(sizeof(struct nfs4_sessionid), GFP_KERNEL);
if (!bc_sid)
return -ENOMEM;
memcpy(bc_sid->data, &clp->cl_session->sess_id.data,
NFS4_MAX_SESSIONID_LEN);
spin_lock_bh(&serv->sv_cb_lock);
serv->sv_bc_xprt->xpt_bc_sid = bc_sid;
spin_unlock_bh(&serv->sv_cb_lock);
dprintk("%s set xpt_bc_sid=%u:%u:%u:%u for sv_bc_xprt %p\n", __func__,
((u32 *)bc_sid->data)[0], ((u32 *)bc_sid->data)[1],
((u32 *)bc_sid->data)[2], ((u32 *)bc_sid->data)[3],
serv->sv_bc_xprt);
return 0;
}
/*
* The callback service for NFSv4.1 callbacks
*/
......@@ -177,30 +202,38 @@ nfs41_callback_svc(void *vrqstp)
struct svc_rqst *
nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
{
struct svc_xprt *bc_xprt;
struct svc_rqst *rqstp = ERR_PTR(-ENOMEM);
struct svc_rqst *rqstp;
int ret;
dprintk("--> %s\n", __func__);
/* Create a svc_sock for the service */
bc_xprt = svc_sock_create(serv, xprt->prot);
if (!bc_xprt)
/*
* Create an svc_sock for the back channel service that shares the
* fore channel connection.
* Returns the input port (0) and sets the svc_serv bc_xprt on success
*/
ret = svc_create_xprt(serv, "tcp-bc", &init_net, PF_INET, 0,
SVC_SOCK_ANONYMOUS);
if (ret < 0) {
rqstp = ERR_PTR(ret);
goto out;
}
/*
* Save the svc_serv in the transport so that it can
* be referenced when the session backchannel is initialized
*/
serv->bc_xprt = bc_xprt;
xprt->bc_serv = serv;
INIT_LIST_HEAD(&serv->sv_cb_list);
spin_lock_init(&serv->sv_cb_lock);
init_waitqueue_head(&serv->sv_cb_waitq);
rqstp = svc_prepare_thread(serv, &serv->sv_pools[0]);
if (IS_ERR(rqstp))
svc_sock_destroy(bc_xprt);
if (IS_ERR(rqstp)) {
svc_xprt_put(serv->sv_bc_xprt);
serv->sv_bc_xprt = NULL;
}
out:
dprintk("--> %s return %p\n", __func__, rqstp);
dprintk("--> %s return %ld\n", __func__,
IS_ERR(rqstp) ? PTR_ERR(rqstp) : 0);
return rqstp;
}
......@@ -233,6 +266,10 @@ static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt,
struct nfs_callback_data *cb_info)
{
}
int nfs4_set_callback_sessionid(struct nfs_client *clp)
{
return 0;
}
#endif /* CONFIG_NFS_V4_1 */
/*
......@@ -328,6 +365,9 @@ static int check_gss_callback_principal(struct nfs_client *clp,
struct rpc_clnt *r = clp->cl_rpcclient;
char *p = svc_gss_principal(rqstp);
/* No RPC_AUTH_GSS on NFSv4.1 back channel yet */
if (clp->cl_minorversion != 0)
return SVC_DROP;
/*
* It might just be a normal user principal, in which case
* userspace won't bother to tell us the name at all.
......@@ -345,6 +385,23 @@ static int check_gss_callback_principal(struct nfs_client *clp,
return SVC_OK;
}
/* pg_authenticate method helper */
static struct nfs_client *nfs_cb_find_client(struct svc_rqst *rqstp)
{
struct nfs4_sessionid *sessionid = bc_xprt_sid(rqstp);
int is_cb_compound = rqstp->rq_proc == CB_COMPOUND ? 1 : 0;
dprintk("--> %s rq_proc %d\n", __func__, rqstp->rq_proc);
if (svc_is_backchannel(rqstp))
/* Sessionid (usually) set after CB_NULL ping */
return nfs4_find_client_sessionid(svc_addr(rqstp), sessionid,
is_cb_compound);
else
/* No callback identifier in pg_authenticate */
return nfs4_find_client_no_ident(svc_addr(rqstp));
}
/* pg_authenticate method for nfsv4 callback threads. */
static int nfs_callback_authenticate(struct svc_rqst *rqstp)
{
struct nfs_client *clp;
......@@ -352,7 +409,7 @@ static int nfs_callback_authenticate(struct svc_rqst *rqstp)
int ret = SVC_OK;
/* Don't talk to strangers */
clp = nfs_find_client(svc_addr(rqstp), 4);
clp = nfs_cb_find_client(rqstp);
if (clp == NULL)
return SVC_DROP;
......
fs/nfs/callback.h
View file @ b9d919a4
......@@ -34,10 +34,17 @@ enum nfs4_callback_opnum {
OP_CB_ILLEGAL = 10044,
};
struct cb_process_state {
__be32 drc_status;
struct nfs_client *clp;
struct nfs4_sessionid *svc_sid; /* v4.1 callback service sessionid */
};
struct cb_compound_hdr_arg {
unsigned int taglen;
const char *tag;
unsigned int minorversion;
unsigned int cb_ident; /* v4.0 callback identifier */
unsigned nops;
};
......@@ -103,14 +110,23 @@ struct cb_sequenceres {
uint32_t csr_target_highestslotid;
};
extern unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
struct cb_sequenceres *res);
extern __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
struct cb_sequenceres *res,
struct cb_process_state *cps);
extern int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation,
const nfs4_stateid *stateid);
#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;
......@@ -118,25 +134,52 @@ struct cb_recallanyargs {
uint32_t craa_type_mask;
};
extern unsigned nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy);
extern __be32 nfs4_callback_recallany(struct cb_recallanyargs *args,
void *dummy,
struct cb_process_state *cps);
struct cb_recallslotargs {
struct sockaddr *crsa_addr;
uint32_t crsa_target_max_slots;
};
extern unsigned nfs4_callback_recallslot(struct cb_recallslotargs *args,
void *dummy);
extern __be32 nfs4_callback_recallslot(struct cb_recallslotargs *args,
void *dummy,
struct cb_process_state *cps);
struct cb_layoutrecallargs {
struct sockaddr *cbl_addr;
uint32_t cbl_recall_type;
uint32_t cbl_layout_type;
uint32_t cbl_layoutchanged;
union {
struct {
struct nfs_fh cbl_fh;
struct pnfs_layout_range cbl_range;
nfs4_stateid cbl_stateid;
};
struct nfs_fsid cbl_fsid;
};
};
#endif /* CONFIG_NFS_V4_1 */
extern unsigned nfs4_callback_layoutrecall(
struct cb_layoutrecallargs *args,
void *dummy, struct cb_process_state *cps);
extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy);
extern void nfs4_check_drain_bc_complete(struct nfs4_session *ses);
extern void nfs4_cb_take_slot(struct nfs_client *clp);
#endif /* CONFIG_NFS_V4_1 */
extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
struct cb_getattrres *res,
struct cb_process_state *cps);
extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
struct cb_process_state *cps);
#ifdef CONFIG_NFS_V4
extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
extern void nfs_callback_down(int minorversion);
extern int nfs4_validate_delegation_stateid(struct nfs_delegation *delegation,
const nfs4_stateid *stateid);
extern int nfs4_set_callback_sessionid(struct nfs_client *clp);
#endif /* CONFIG_NFS_V4 */
/*
* nfs41: Callbacks are expected to not cause substantial latency,
......
fs/nfs/callback_proc.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/callback_xdr.c
View file @ b9d919a4
......@@ -10,8 +10,10 @@
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
#include <linux/slab.h>
#include <linux/sunrpc/bc_xprt.h>
#include "nfs4_fs.h"
#include "callback.h"
#include "internal.h"
#define CB_OP_TAGLEN_MAXSZ (512)
#define CB_OP_HDR_RES_MAXSZ (2 + CB_OP_TAGLEN_MAXSZ)
......@@ -22,6 +24,7 @@
#define CB_OP_RECALL_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
#if defined(CONFIG_NFS_V4_1)
#define CB_OP_LAYOUTRECALL_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
#define CB_OP_SEQUENCE_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ + \
4 + 1 + 3)
#define CB_OP_RECALLANY_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
......@@ -33,7 +36,8 @@
/* Internal error code */
#define NFS4ERR_RESOURCE_HDR 11050
typedef __be32 (*callback_process_op_t)(void *, void *);
typedef __be32 (*callback_process_op_t)(void *, void *,
struct cb_process_state *);
typedef __be32 (*callback_decode_arg_t)(struct svc_rqst *, struct xdr_stream *, void *);
typedef __be32 (*callback_encode_res_t)(struct svc_rqst *, struct xdr_stream *, void *);
......@@ -160,7 +164,7 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound
hdr->minorversion = ntohl(*p++);
/* Check minor version is zero or one. */
if (hdr->minorversion <= 1) {
p++; /* skip callback_ident */
hdr->cb_ident = ntohl(*p++); /* ignored by v4.1 */
} else {
printk(KERN_WARNING "%s: NFSv4 server callback with "
"illegal minor version %u!\n",
......@@ -220,6 +224,66 @@ static __be32 decode_recall_args(struct svc_rqst *rqstp, struct xdr_stream *xdr,
#if defined(CONFIG_NFS_V4_1)
static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
struct xdr_stream *xdr,
struct cb_layoutrecallargs *args)
{
__be32 *p;
__be32 status = 0;
uint32_t iomode;
args->cbl_addr = svc_addr(rqstp);
p = read_buf(xdr, 4 * sizeof(uint32_t));
if (unlikely(p == NULL)) {
status = htonl(NFS4ERR_BADXDR);
goto out;
}
args->cbl_layout_type = ntohl(*p++);
/* Depite the spec's xdr, iomode really belongs in the FILE switch,
* as it is unuseable and ignored with the other types.
*/
iomode = ntohl(*p++);
args->cbl_layoutchanged = ntohl(*p++);
args->cbl_recall_type = ntohl(*p++);
if (args->cbl_recall_type == RETURN_FILE) {
args->cbl_range.iomode = iomode;
status = decode_fh(xdr, &args->cbl_fh);
if (unlikely(status != 0))
goto out;
p = read_buf(xdr, 2 * sizeof(uint64_t));
if (unlikely(p == NULL)) {
status = htonl(NFS4ERR_BADXDR);
goto out;
}
p = xdr_decode_hyper(p, &args->cbl_range.offset);
p = xdr_decode_hyper(p, &args->cbl_range.length);
status = decode_stateid(xdr, &args->cbl_stateid);
if (unlikely(status != 0))
goto out;
} else if (args->cbl_recall_type == RETURN_FSID) {
p = read_buf(xdr, 2 * sizeof(uint64_t));
if (unlikely(p == NULL)) {
status = htonl(NFS4ERR_BADXDR);
goto out;
}
p = xdr_decode_hyper(p, &args->cbl_fsid.major);
p = xdr_decode_hyper(p, &args->cbl_fsid.minor);
} else if (args->cbl_recall_type != RETURN_ALL) {
status = htonl(NFS4ERR_BADXDR);
goto out;
}
dprintk("%s: ltype 0x%x iomode %d changed %d recall_type %d\n",
__func__,
args->cbl_layout_type, iomode,
args->cbl_layoutchanged, args->cbl_recall_type);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
return status;
}
static __be32 decode_sessionid(struct xdr_stream *xdr,
struct nfs4_sessionid *sid)
{
......@@ -574,10 +638,10 @@ preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
case OP_CB_SEQUENCE:
case OP_CB_RECALL_ANY:
case OP_CB_RECALL_SLOT:
case OP_CB_LAYOUTRECALL:
*op = &callback_ops[op_nr];
break;
case OP_CB_LAYOUTRECALL:
case OP_CB_NOTIFY_DEVICEID:
case OP_CB_NOTIFY:
case OP_CB_PUSH_DELEG:
......@@ -593,6 +657,37 @@ preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
return htonl(NFS_OK);
}
static void nfs4_callback_free_slot(struct nfs4_session *session)
{
struct nfs4_slot_table *tbl = &session->bc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
/*
* Let the state manager know callback processing done.
* A single slot, so highest used slotid is either 0 or -1
*/
tbl->highest_used_slotid--;
nfs4_check_drain_bc_complete(session);
spin_unlock(&tbl->slot_tbl_lock);
}
static void nfs4_cb_free_slot(struct nfs_client *clp)
{
if (clp && clp->cl_session)
nfs4_callback_free_slot(clp->cl_session);
}
/* A single slot, so highest used slotid is either 0 or -1 */
void nfs4_cb_take_slot(struct nfs_client *clp)
{
struct nfs4_slot_table *tbl = &clp->cl_session->bc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
tbl->highest_used_slotid++;
BUG_ON(tbl->highest_used_slotid != 0);
spin_unlock(&tbl->slot_tbl_lock);
}
#else /* CONFIG_NFS_V4_1 */
static __be32
......@@ -601,6 +696,9 @@ preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
}
static void nfs4_cb_free_slot(struct nfs_client *clp)
{
}
#endif /* CONFIG_NFS_V4_1 */
static __be32
......@@ -621,7 +719,8 @@ preprocess_nfs4_op(unsigned int op_nr, struct callback_op **op)
static __be32 process_op(uint32_t minorversion, int nop,
struct svc_rqst *rqstp,
struct xdr_stream *xdr_in, void *argp,
struct xdr_stream *xdr_out, void *resp, int* drc_status)
struct xdr_stream *xdr_out, void *resp,
struct cb_process_state *cps)
{
struct callback_op *op = &callback_ops[0];
unsigned int op_nr;
......@@ -644,8 +743,8 @@ static __be32 process_op(uint32_t minorversion, int nop,
if (status)
goto encode_hdr;
if (*drc_status) {
status = *drc_status;
if (cps->drc_status) {
status = cps->drc_status;
goto encode_hdr;
}
......@@ -653,16 +752,10 @@ static __be32 process_op(uint32_t minorversion, int nop,
if (maxlen > 0 && maxlen < PAGE_SIZE) {
status = op->decode_args(rqstp, xdr_in, argp);
if (likely(status == 0))
status = op->process_op(argp, resp);
status = op->process_op(argp, resp, cps);
} else
status = htonl(NFS4ERR_RESOURCE);
/* Only set by OP_CB_SEQUENCE processing */
if (status == htonl(NFS4ERR_RETRY_UNCACHED_REP)) {
*drc_status = status;
status = 0;
}
encode_hdr:
res = encode_op_hdr(xdr_out, op_nr, status);
if (unlikely(res))
......@@ -681,8 +774,11 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
struct cb_compound_hdr_arg hdr_arg = { 0 };
struct cb_compound_hdr_res hdr_res = { NULL };
struct xdr_stream xdr_in, xdr_out;
__be32 *p;
__be32 status, drc_status = 0;
__be32 *p, status;
struct cb_process_state cps = {
.drc_status = 0,
.clp = NULL,
};
unsigned int nops = 0;
dprintk("%s: start\n", __func__);
......@@ -696,6 +792,13 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
if (status == __constant_htonl(NFS4ERR_RESOURCE))
return rpc_garbage_args;
if (hdr_arg.minorversion == 0) {
cps.clp = nfs4_find_client_ident(hdr_arg.cb_ident);
if (!cps.clp)
return rpc_drop_reply;
} else
cps.svc_sid = bc_xprt_sid(rqstp);
hdr_res.taglen = hdr_arg.taglen;
hdr_res.tag = hdr_arg.tag;
if (encode_compound_hdr_res(&xdr_out, &hdr_res) != 0)
......@@ -703,7 +806,7 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
while (status == 0 && nops != hdr_arg.nops) {
status = process_op(hdr_arg.minorversion, nops, rqstp,
&xdr_in, argp, &xdr_out, resp, &drc_status);
&xdr_in, argp, &xdr_out, resp, &cps);
nops++;
}
......@@ -716,6 +819,8 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
*hdr_res.status = status;
*hdr_res.nops = htonl(nops);
nfs4_cb_free_slot(cps.clp);
nfs_put_client(cps.clp);
dprintk("%s: done, status = %u\n", __func__, ntohl(status));
return rpc_success;
}
......@@ -739,6 +844,12 @@ static struct callback_op callback_ops[] = {
.res_maxsize = CB_OP_RECALL_RES_MAXSZ,
},
#if defined(CONFIG_NFS_V4_1)
[OP_CB_LAYOUTRECALL] = {
.process_op = (callback_process_op_t)nfs4_callback_layoutrecall,
.decode_args =
(callback_decode_arg_t)decode_layoutrecall_args,
.res_maxsize = CB_OP_LAYOUTRECALL_RES_MAXSZ,
},
[OP_CB_SEQUENCE] = {
.process_op = (callback_process_op_t)nfs4_callback_sequence,
.decode_args = (callback_decode_arg_t)decode_cb_sequence_args,
......
fs/nfs/client.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/delegation.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/delegation.h
View file @ b9d919a4
......@@ -44,6 +44,7 @@ void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags);
void nfs_expire_unreferenced_delegations(struct nfs_client *clp);
void nfs_handle_cb_pathdown(struct nfs_client *clp);
int nfs_client_return_marked_delegations(struct nfs_client *clp);
int nfs_delegations_present(struct nfs_client *clp);
void nfs_delegation_mark_reclaim(struct nfs_client *clp);
void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
......
fs/nfs/dir.c
View file @ b9d919a4
......@@ -33,8 +33,8 @@
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/sched.h>
#include <linux/vmalloc.h>
#include <linux/kmemleak.h>
#include <linux/xattr.h>
#include "delegation.h"
#include "iostat.h"
......@@ -125,9 +125,10 @@ const struct inode_operations nfs4_dir_inode_operations = {
.permission = nfs_permission,
.getattr = nfs_getattr,
.setattr = nfs_setattr,
.getxattr = nfs4_getxattr,
.setxattr = nfs4_setxattr,
.listxattr = nfs4_listxattr,
.getxattr = generic_getxattr,
.setxattr = generic_setxattr,
.listxattr = generic_listxattr,
.removexattr = generic_removexattr,
};
#endif /* CONFIG_NFS_V4 */
......@@ -172,7 +173,7 @@ struct nfs_cache_array {
struct nfs_cache_array_entry array[0];
};
typedef __be32 * (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, struct nfs_server *, int);
typedef int (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, int);
typedef struct {
struct file *file;
struct page *page;
......@@ -378,14 +379,14 @@ int nfs_readdir_xdr_filler(struct page **pages, nfs_readdir_descriptor_t *desc,
return error;
}
/* Fill in an entry based on the xdr code stored in desc->page */
static
int xdr_decode(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry, struct xdr_stream *stream)
static int xdr_decode(nfs_readdir_descriptor_t *desc,
struct nfs_entry *entry, struct xdr_stream *xdr)
{
__be32 *p = desc->decode(stream, entry, NFS_SERVER(desc->file->f_path.dentry->d_inode), desc->plus);
if (IS_ERR(p))
return PTR_ERR(p);
int error;
error = desc->decode(xdr, entry, desc->plus);
if (error)
return error;
entry->fattr->time_start = desc->timestamp;
entry->fattr->gencount = desc->gencount;
return 0;
......@@ -459,25 +460,26 @@ void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry)
/* Perform conversion from xdr to cache array */
static
int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry,
void *xdr_page, struct page *page, unsigned int buflen)
struct page **xdr_pages, struct page *page, unsigned int buflen)
{
struct xdr_stream stream;
struct xdr_buf buf;
__be32 *ptr = xdr_page;
struct xdr_buf buf = {
.pages = xdr_pages,
.page_len = buflen,
.buflen = buflen,
.len = buflen,
};
struct page *scratch;
struct nfs_cache_array *array;
unsigned int count = 0;
int status;
buf.head->iov_base = xdr_page;
buf.head->iov_len = buflen;
buf.tail->iov_len = 0;
buf.page_base = 0;
buf.page_len = 0;
buf.buflen = buf.head->iov_len;
buf.len = buf.head->iov_len;
xdr_init_decode(&stream, &buf, ptr);
scratch = alloc_page(GFP_KERNEL);
if (scratch == NULL)
return -ENOMEM;
xdr_init_decode(&stream, &buf, NULL);
xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
do {
status = xdr_decode(desc, entry, &stream);
......@@ -506,6 +508,8 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en
} else
status = PTR_ERR(array);
}
put_page(scratch);
return status;
}
......@@ -521,7 +525,6 @@ static
void nfs_readdir_free_large_page(void *ptr, struct page **pages,
unsigned int npages)
{
vm_unmap_ram(ptr, npages);
nfs_readdir_free_pagearray(pages, npages);
}
......@@ -530,9 +533,8 @@ void nfs_readdir_free_large_page(void *ptr, struct page **pages,
* to nfs_readdir_free_large_page
*/
static
void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
int nfs_readdir_large_page(struct page **pages, unsigned int npages)
{
void *ptr;
unsigned int i;
for (i = 0; i < npages; i++) {
......@@ -541,13 +543,11 @@ void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
goto out_freepages;
pages[i] = page;
}
return 0;
ptr = vm_map_ram(pages, npages, 0, PAGE_KERNEL);
if (!IS_ERR_OR_NULL(ptr))
return ptr;
out_freepages:
nfs_readdir_free_pagearray(pages, i);
return NULL;
return -ENOMEM;
}
static
......@@ -566,6 +566,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
entry.eof = 0;
entry.fh = nfs_alloc_fhandle();
entry.fattr = nfs_alloc_fattr();
entry.server = NFS_SERVER(inode);
if (entry.fh == NULL || entry.fattr == NULL)
goto out;
......@@ -577,8 +578,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
memset(array, 0, sizeof(struct nfs_cache_array));
array->eof_index = -1;
pages_ptr = nfs_readdir_large_page(pages, array_size);
if (!pages_ptr)
status = nfs_readdir_large_page(pages, array_size);
if (status < 0)
goto out_release_array;
do {
unsigned int pglen;
......@@ -587,7 +588,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
if (status < 0)
break;
pglen = status;
status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
status = nfs_readdir_page_filler(desc, &entry, pages, page, pglen);
if (status < 0) {
if (status == -ENOSPC)
status = 0;
......@@ -1221,7 +1222,7 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
goto out_unblock_sillyrename;
}
inode = nfs_fhget(dentry->d_sb, fhandle, fattr);
res = (struct dentry *)inode;
res = ERR_CAST(inode);
if (IS_ERR(res))
goto out_unblock_sillyrename;
......@@ -1355,8 +1356,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
if (nd->flags & LOOKUP_CREATE) {
attr.ia_mode = nd->intent.open.create_mode;
attr.ia_valid = ATTR_MODE;
if (!IS_POSIXACL(dir))
attr.ia_mode &= ~current_umask();
attr.ia_mode &= ~current_umask();
} else {
open_flags &= ~(O_EXCL | O_CREAT);
attr.ia_valid = 0;
......
fs/nfs/idmap.c
View file @ b9d919a4
......@@ -238,7 +238,7 @@ int nfs_map_gid_to_group(struct nfs_client *clp, __u32 gid, char *buf, size_t bu
return nfs_idmap_lookup_name(gid, "group", buf, buflen);
}
#else /* CONFIG_NFS_USE_IDMAPPER not defined */
#else /* CONFIG_NFS_USE_NEW_IDMAPPER not defined */
#include <linux/module.h>
#include <linux/mutex.h>
......
fs/nfs/inode.c
View file @ b9d919a4
......@@ -1410,9 +1410,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
*/
void nfs4_evict_inode(struct inode *inode)
{
pnfs_destroy_layout(NFS_I(inode));
truncate_inode_pages(&inode->i_data, 0);
end_writeback(inode);
pnfs_destroy_layout(NFS_I(inode));
/* If we are holding a delegation, return it! */
nfs_inode_return_delegation_noreclaim(inode);
/* First call standard NFS clear_inode() code */
......@@ -1619,6 +1619,7 @@ static void __exit exit_nfs_fs(void)
#ifdef CONFIG_PROC_FS
rpc_proc_unregister("nfs");
#endif
nfs_cleanup_cb_ident_idr();
unregister_nfs_fs();
nfs_fs_proc_exit();
nfsiod_stop();
......
fs/nfs/internal.h
View file @ b9d919a4
This diff is collapsed.
fs/nfs/mount_clnt.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/nfs2xdr.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/nfs3xdr.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/nfs4_fs.h
View file @ b9d919a4
This diff is collapsed.
fs/nfs/nfs4filelayout.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/nfs4proc.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/nfs4renewd.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/nfs4state.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/nfs4xdr.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/pagelist.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/pnfs.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/pnfs.h
View file @ b9d919a4
This diff is collapsed.
fs/nfs/proc.c
View file @ b9d919a4
This diff is collapsed.
fs/nfs/super.c
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