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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-13 10:53:54 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-13 10:53:54 +0900
commitbd81ccea8558daab570d70d2c23746413f26cecf (patch)
treea3a75dde2dc3cf26c74353b21792da30d65d7c13
parent98260daa184c4a171834463cf85ab3a2c509d983 (diff)
parenta9ca4043d074509b9d15003fbcb068d3cdae85a4 (diff)
downloadvexpress-lsk-bd81ccea8558daab570d70d2c23746413f26cecf.tar.gz
Merge branch 'for-3.7' of git://linux-nfs.org/~bfields/linux
Pull nfsd update from J Bruce Fields: "Another relatively quiet cycle. There was some progress on my remaining 4.1 todo's, but a couple of them were just of the form "check that we do X correctly", so didn't have much affect on the code. Other than that, a bunch of cleanup and some bugfixes (including an annoying NFSv4.0 state leak and a busy-loop in the server that could cause it to peg the CPU without making progress)." * 'for-3.7' of git://linux-nfs.org/~bfields/linux: (46 commits) UAPI: (Scripted) Disintegrate include/linux/sunrpc UAPI: (Scripted) Disintegrate include/linux/nfsd nfsd4: don't allow reclaims of expired clients nfsd4: remove redundant callback probe nfsd4: expire old client earlier nfsd4: separate session allocation and initialization nfsd4: clean up session allocation nfsd4: minor free_session cleanup nfsd4: new_conn_from_crses should only allocate nfsd4: separate connection allocation and initialization nfsd4: reject bad forechannel attrs earlier nfsd4: enforce per-client sessions/no-sessions distinction nfsd4: set cl_minorversion at create time nfsd4: don't pin clientids to pseudoflavors nfsd4: fix bind_conn_to_session xdr comment nfsd4: cast readlink() bug argument NFSD: pass null terminated buf to kstrtouint() nfsd: remove duplicate init in nfsd4_cb_recall nfsd4: eliminate redundant nfs4_free_stateid fs/nfsd/nfs4idmap.c: adjust inconsistent IS_ERR and PTR_ERR ...
-rw-r--r--Documentation/filesystems/nfs/nfsd-admin-interfaces.txt41
-rw-r--r--fs/lockd/svc.c17
-rw-r--r--fs/locks.c6
-rw-r--r--fs/nfs/callback.c16
-rw-r--r--fs/nfsd/nfs2acl.c3
-rw-r--r--fs/nfsd/nfs3proc.c2
-rw-r--r--fs/nfsd/nfs4callback.c1
-rw-r--r--fs/nfsd/nfs4idmap.c4
-rw-r--r--fs/nfsd/nfs4proc.c6
-rw-r--r--fs/nfsd/nfs4state.c351
-rw-r--r--fs/nfsd/nfs4xdr.c2
-rw-r--r--fs/nfsd/nfsctl.c84
-rw-r--r--fs/nfsd/nfsd.h4
-rw-r--r--fs/nfsd/nfssvc.c26
-rw-r--r--fs/nfsd/state.h8
-rw-r--r--fs/nfsd/vfs.c2
-rw-r--r--include/linux/nfsd/Kbuild5
-rw-r--r--include/linux/nfsd/debug.h31
-rw-r--r--include/linux/nfsd/export.h52
-rw-r--r--include/linux/nfsd/nfsfh.h111
-rw-r--r--include/linux/nfsd/stats.h8
-rw-r--r--include/linux/sunrpc/Kbuild1
-rw-r--r--include/linux/sunrpc/debug.h39
-rw-r--r--include/linux/sunrpc/svc_xprt.h5
-rw-r--r--include/linux/sunrpc/svcsock.h3
-rw-r--r--include/uapi/linux/nfsd/Kbuild5
-rw-r--r--include/uapi/linux/nfsd/cld.h (renamed from include/linux/nfsd/cld.h)0
-rw-r--r--include/uapi/linux/nfsd/debug.h40
-rw-r--r--include/uapi/linux/nfsd/export.h58
-rw-r--r--include/uapi/linux/nfsd/nfsfh.h122
-rw-r--r--include/uapi/linux/nfsd/stats.h17
-rw-r--r--include/uapi/linux/sunrpc/Kbuild1
-rw-r--r--include/uapi/linux/sunrpc/debug.h48
-rw-r--r--net/sunrpc/svc_xprt.c233
-rw-r--r--net/sunrpc/svcsock.c157
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_transport.c4
36 files changed, 756 insertions, 757 deletions
diff --git a/Documentation/filesystems/nfs/nfsd-admin-interfaces.txt b/Documentation/filesystems/nfs/nfsd-admin-interfaces.txt
new file mode 100644
index 00000000000..56a96fb08a7
--- /dev/null
+++ b/Documentation/filesystems/nfs/nfsd-admin-interfaces.txt
@@ -0,0 +1,41 @@
+Administrative interfaces for nfsd
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Note that normally these interfaces are used only by the utilities in
+nfs-utils.
+
+nfsd is controlled mainly by pseudofiles under the "nfsd" filesystem,
+which is normally mounted at /proc/fs/nfsd/.
+
+The server is always started by the first write of a nonzero value to
+nfsd/threads.
+
+Before doing that, NFSD can be told which sockets to listen on by
+writing to nfsd/portlist; that write may be:
+
+ - an ascii-encoded file descriptor, which should refer to a
+ bound (and listening, for tcp) socket, or
+ - "transportname port", where transportname is currently either
+ "udp", "tcp", or "rdma".
+
+If nfsd is started without doing any of these, then it will create one
+udp and one tcp listener at port 2049 (see nfsd_init_socks).
+
+On startup, nfsd and lockd grace periods start.
+
+nfsd is shut down by a write of 0 to nfsd/threads. All locks and state
+are thrown away at that point.
+
+Between startup and shutdown, the number of threads may be adjusted up
+or down by additional writes to nfsd/threads or by writes to
+nfsd/pool_threads.
+
+For more detail about files under nfsd/ and what they control, see
+fs/nfsd/nfsctl.c; most of them have detailed comments.
+
+Implementation notes
+^^^^^^^^^^^^^^^^^^^^
+
+Note that the rpc server requires the caller to serialize addition and
+removal of listening sockets, and startup and shutdown of the server.
+For nfsd this is done using nfsd_mutex.
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 7e355870d51..a2aa97d4567 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -126,7 +126,7 @@ static void restart_grace(void)
static int
lockd(void *vrqstp)
{
- int err = 0, preverr = 0;
+ int err = 0;
struct svc_rqst *rqstp = vrqstp;
/* try_to_freeze() is called from svc_recv() */
@@ -165,21 +165,8 @@ lockd(void *vrqstp)
* recvfrom routine.
*/
err = svc_recv(rqstp, timeout);
- if (err == -EAGAIN || err == -EINTR) {
- preverr = err;
+ if (err == -EAGAIN || err == -EINTR)
continue;
- }
- if (err < 0) {
- if (err != preverr) {
- printk(KERN_WARNING "%s: unexpected error "
- "from svc_recv (%d)\n", __func__, err);
- preverr = err;
- }
- schedule_timeout_interruptible(HZ);
- continue;
- }
- preverr = err;
-
dprintk("lockd: request from %s\n",
svc_print_addr(rqstp, buf, sizeof(buf)));
diff --git a/fs/locks.c b/fs/locks.c
index abc7dc6c490..a94e331a52a 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1289,7 +1289,7 @@ EXPORT_SYMBOL(__break_lease);
void lease_get_mtime(struct inode *inode, struct timespec *time)
{
struct file_lock *flock = inode->i_flock;
- if (flock && IS_LEASE(flock) && (flock->fl_type & F_WRLCK))
+ if (flock && IS_LEASE(flock) && (flock->fl_type == F_WRLCK))
*time = current_fs_time(inode->i_sb);
else
*time = inode->i_mtime;
@@ -2185,8 +2185,8 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl,
} else {
seq_printf(f, "%s ",
(lease_breaking(fl))
- ? (fl->fl_type & F_UNLCK) ? "UNLCK" : "READ "
- : (fl->fl_type & F_WRLCK) ? "WRITE" : "READ ");
+ ? (fl->fl_type == F_UNLCK) ? "UNLCK" : "READ "
+ : (fl->fl_type == F_WRLCK) ? "WRITE" : "READ ");
}
if (inode) {
#ifdef WE_CAN_BREAK_LSLK_NOW
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 2245bef50f3..9a521fb3986 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -72,7 +72,7 @@ out_err:
static int
nfs4_callback_svc(void *vrqstp)
{
- int err, preverr = 0;
+ int err;
struct svc_rqst *rqstp = vrqstp;
set_freezable();
@@ -82,20 +82,8 @@ nfs4_callback_svc(void *vrqstp)
* Listen for a request on the socket
*/
err = svc_recv(rqstp, MAX_SCHEDULE_TIMEOUT);
- if (err == -EAGAIN || err == -EINTR) {
- preverr = err;
+ if (err == -EAGAIN || err == -EINTR)
continue;
- }
- if (err < 0) {
- if (err != preverr) {
- printk(KERN_WARNING "NFS: %s: unexpected error "
- "from svc_recv (%d)\n", __func__, err);
- preverr = err;
- }
- schedule_timeout_uninterruptible(HZ);
- continue;
- }
- preverr = err;
svc_process(rqstp);
}
return 0;
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 6aa5590c367..b314888825d 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -218,8 +218,7 @@ static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
* There must be an encoding function for void results so svc_process
* will work properly.
*/
-int
-nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
{
return xdr_ressize_check(rqstp, p);
}
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 9095f3c21df..97d90d1c860 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -247,7 +247,7 @@ nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
/* Now create the file and set attributes */
nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
attr, newfhp,
- argp->createmode, argp->verf, NULL, NULL);
+ argp->createmode, (u32 *)argp->verf, NULL, NULL);
RETURN_STATUS(nfserr);
}
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 4c7bd35b187..bdf29c96e4c 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1028,7 +1028,6 @@ void nfsd4_cb_recall(struct nfs4_delegation *dp)
cb->cb_msg.rpc_cred = callback_cred;
cb->cb_ops = &nfsd4_cb_recall_ops;
- dp->dl_retries = 1;
INIT_LIST_HEAD(&cb->cb_per_client);
cb->cb_done = true;
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index fdc91a6fc9c..a1f10c0a625 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -478,7 +478,7 @@ nfsd_idmap_init(struct net *net)
goto destroy_idtoname_cache;
nn->nametoid_cache = cache_create_net(&nametoid_cache_template, net);
if (IS_ERR(nn->nametoid_cache)) {
- rv = PTR_ERR(nn->idtoname_cache);
+ rv = PTR_ERR(nn->nametoid_cache);
goto unregister_idtoname_cache;
}
rv = cache_register_net(nn->nametoid_cache, net);
@@ -598,7 +598,7 @@ numeric_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namel
/* Just to make sure it's null-terminated: */
memcpy(buf, name, namelen);
buf[namelen] = '\0';
- ret = kstrtouint(name, 10, id);
+ ret = kstrtouint(buf, 10, id);
return ret == 0;
}
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index c9c1c0a2541..6c9a4b291db 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -370,7 +370,7 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
break;
case NFS4_OPEN_CLAIM_PREVIOUS:
open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
- status = nfs4_check_open_reclaim(&open->op_clientid);
+ status = nfs4_check_open_reclaim(&open->op_clientid, cstate->minorversion);
if (status)
goto out;
case NFS4_OPEN_CLAIM_FH:
@@ -1054,8 +1054,8 @@ struct nfsd4_operation {
char *op_name;
/* Try to get response size before operation */
nfsd4op_rsize op_rsize_bop;
- stateid_setter op_get_currentstateid;
- stateid_getter op_set_currentstateid;
+ stateid_getter op_get_currentstateid;
+ stateid_setter op_set_currentstateid;
};
static struct nfsd4_operation nfsd4_ops[];
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 48a1bad3733..d0237f872cc 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -758,7 +758,7 @@ static void nfsd4_put_drc_mem(int slotsize, int num)
spin_unlock(&nfsd_drc_lock);
}
-static struct nfsd4_session *alloc_session(int slotsize, int numslots)
+static struct nfsd4_session *__alloc_session(int slotsize, int numslots)
{
struct nfsd4_session *new;
int mem, i;
@@ -852,35 +852,28 @@ static int nfsd4_register_conn(struct nfsd4_conn *conn)
return register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);
}
-static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses, u32 dir)
+static void nfsd4_init_conn(struct svc_rqst *rqstp, struct nfsd4_conn *conn, struct nfsd4_session *ses)
{
- struct nfsd4_conn *conn;
int ret;
- conn = alloc_conn(rqstp, dir);
- if (!conn)
- return nfserr_jukebox;
nfsd4_hash_conn(conn, ses);
ret = nfsd4_register_conn(conn);
if (ret)
/* oops; xprt is already down: */
nfsd4_conn_lost(&conn->cn_xpt_user);
- if (ses->se_client->cl_cb_state == NFSD4_CB_DOWN &&
- dir & NFS4_CDFC4_BACK) {
+ if (conn->cn_flags & NFS4_CDFC4_BACK) {
/* callback channel may be back up */
nfsd4_probe_callback(ses->se_client);
}
- return nfs_ok;
}
-static __be32 nfsd4_new_conn_from_crses(struct svc_rqst *rqstp, struct nfsd4_session *ses)
+static struct nfsd4_conn *alloc_conn_from_crses(struct svc_rqst *rqstp, struct nfsd4_create_session *cses)
{
u32 dir = NFS4_CDFC4_FORE;
- if (ses->se_flags & SESSION4_BACK_CHAN)
+ if (cses->flags & SESSION4_BACK_CHAN)
dir |= NFS4_CDFC4_BACK;
-
- return nfsd4_new_conn(rqstp, ses, dir);
+ return alloc_conn(rqstp, dir);
}
/* must be called under client_lock */
@@ -903,20 +896,21 @@ static void nfsd4_del_conns(struct nfsd4_session *s)
spin_unlock(&clp->cl_lock);
}
+static void __free_session(struct nfsd4_session *ses)
+{
+ nfsd4_put_drc_mem(slot_bytes(&ses->se_fchannel), ses->se_fchannel.maxreqs);
+ free_session_slots(ses);
+ kfree(ses);
+}
+
static void free_session(struct kref *kref)
{
struct nfsd4_session *ses;
- int mem;
lockdep_assert_held(&client_lock);
ses = container_of(kref, struct nfsd4_session, se_ref);
nfsd4_del_conns(ses);
- spin_lock(&nfsd_drc_lock);
- mem = ses->se_fchannel.maxreqs * slot_bytes(&ses->se_fchannel);
- nfsd_drc_mem_used -= mem;
- spin_unlock(&nfsd_drc_lock);
- free_session_slots(ses);
- kfree(ses);
+ __free_session(ses);
}
void nfsd4_put_session(struct nfsd4_session *ses)
@@ -926,14 +920,10 @@ void nfsd4_put_session(struct nfsd4_session *ses)
spin_unlock(&client_lock);
}
-static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct nfs4_client *clp, struct nfsd4_create_session *cses)
+static struct nfsd4_session *alloc_session(struct nfsd4_channel_attrs *fchan)
{
struct nfsd4_session *new;
- struct nfsd4_channel_attrs *fchan = &cses->fore_channel;
int numslots, slotsize;
- __be32 status;
- int idx;
-
/*
* Note decreasing slot size below client's request may
* make it difficult for client to function correctly, whereas
@@ -946,12 +936,18 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n
if (numslots < 1)
return NULL;
- new = alloc_session(slotsize, numslots);
+ new = __alloc_session(slotsize, numslots);
if (!new) {
nfsd4_put_drc_mem(slotsize, fchan->maxreqs);
return NULL;
}
init_forechannel_attrs(&new->se_fchannel, fchan, numslots, slotsize);
+ return new;
+}
+
+static struct nfsd4_session *init_session(struct svc_rqst *rqstp, struct nfsd4_session *new, struct nfs4_client *clp, struct nfsd4_create_session *cses)
+{
+ int idx;
new->se_client = clp;
gen_sessionid(new);
@@ -970,14 +966,6 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n
spin_unlock(&clp->cl_lock);
spin_unlock(&client_lock);
- status = nfsd4_new_conn_from_crses(rqstp, new);
- /* whoops: benny points out, status is ignored! (err, or bogus) */
- if (status) {
- spin_lock(&client_lock);
- free_session(&new->se_ref);
- spin_unlock(&client_lock);
- return NULL;
- }
if (cses->flags & SESSION4_BACK_CHAN) {
struct sockaddr *sa = svc_addr(rqstp);
/*
@@ -990,7 +978,6 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n
rpc_copy_addr((struct sockaddr *)&clp->cl_cb_conn.cb_addr, sa);
clp->cl_cb_conn.cb_addrlen = svc_addr_len(sa);
}
- nfsd4_probe_callback(clp);
return new;
}
@@ -1131,7 +1118,7 @@ unhash_client_locked(struct nfs4_client *clp)
}
static void
-expire_client(struct nfs4_client *clp)
+destroy_client(struct nfs4_client *clp)
{
struct nfs4_openowner *oo;
struct nfs4_delegation *dp;
@@ -1165,6 +1152,12 @@ expire_client(struct nfs4_client *clp)
spin_unlock(&client_lock);
}
+static void expire_client(struct nfs4_client *clp)
+{
+ nfsd4_client_record_remove(clp);
+ destroy_client(clp);
+}
+
static void copy_verf(struct nfs4_client *target, nfs4_verifier *source)
{
memcpy(target->cl_verifier.data, source->data,
@@ -1223,10 +1216,26 @@ static bool groups_equal(struct group_info *g1, struct group_info *g2)
return true;
}
+/*
+ * RFC 3530 language requires clid_inuse be returned when the
+ * "principal" associated with a requests differs from that previously
+ * used. We use uid, gid's, and gss principal string as our best
+ * approximation. We also don't want to allow non-gss use of a client
+ * established using gss: in theory cr_principal should catch that
+ * change, but in practice cr_principal can be null even in the gss case
+ * since gssd doesn't always pass down a principal string.
+ */
+static bool is_gss_cred(struct svc_cred *cr)
+{
+ /* Is cr_flavor one of the gss "pseudoflavors"?: */
+ return (cr->cr_flavor > RPC_AUTH_MAXFLAVOR);
+}
+
+
static bool
same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
{
- if ((cr1->cr_flavor != cr2->cr_flavor)
+ if ((is_gss_cred(cr1) != is_gss_cred(cr2))
|| (cr1->cr_uid != cr2->cr_uid)
|| (cr1->cr_gid != cr2->cr_gid)
|| !groups_equal(cr1->cr_group_info, cr2->cr_group_info))
@@ -1340,13 +1349,15 @@ move_to_confirmed(struct nfs4_client *clp)
}
static struct nfs4_client *
-find_confirmed_client(clientid_t *clid)
+find_confirmed_client(clientid_t *clid, bool sessions)
{
struct nfs4_client *clp;
unsigned int idhashval = clientid_hashval(clid->cl_id);
list_for_each_entry(clp, &conf_id_hashtbl[idhashval], cl_idhash) {
if (same_clid(&clp->cl_clientid, clid)) {
+ if ((bool)clp->cl_minorversion != sessions)
+ return NULL;
renew_client(clp);
return clp;
}
@@ -1355,14 +1366,17 @@ find_confirmed_client(clientid_t *clid)
}
static struct nfs4_client *
-find_unconfirmed_client(clientid_t *clid)
+find_unconfirmed_client(clientid_t *clid, bool sessions)
{
struct nfs4_client *clp;
unsigned int idhashval = clientid_hashval(clid->cl_id);
list_for_each_entry(clp, &unconf_id_hashtbl[idhashval], cl_idhash) {
- if (same_clid(&clp->cl_clientid, clid))
+ if (same_clid(&clp->cl_clientid, clid)) {
+ if ((bool)clp->cl_minorversion != sessions)
+ return NULL;
return clp;
+ }
}
return NULL;
}
@@ -1651,6 +1665,7 @@ out_new:
status = nfserr_jukebox;
goto out;
}
+ new->cl_minorversion = 1;
gen_clid(new);
add_to_unconfirmed(new, strhashval);
@@ -1743,67 +1758,71 @@ nfsd4_create_session(struct svc_rqst *rqstp,
struct sockaddr *sa = svc_addr(rqstp);
struct nfs4_client *conf, *unconf;
struct nfsd4_session *new;
+ struct nfsd4_conn *conn;
struct nfsd4_clid_slot *cs_slot = NULL;
- bool confirm_me = false;
__be32 status = 0;
if (cr_ses->flags & ~SESSION4_FLAG_MASK_A)
return nfserr_inval;
+ if (check_forechannel_attrs(cr_ses->fore_channel))
+ return nfserr_toosmall;
+ new = alloc_session(&cr_ses->fore_channel);
+ if (!new)
+ return nfserr_jukebox;
+ status = nfserr_jukebox;
+ conn = alloc_conn_from_crses(rqstp, cr_ses);
+ if (!conn)
+ goto out_free_session;
nfs4_lock_state();
- unconf = find_unconfirmed_client(&cr_ses->clientid);
- conf = find_confirmed_client(&cr_ses->clientid);
+ unconf = find_unconfirmed_client(&cr_ses->clientid, true);
+ conf = find_confirmed_client(&cr_ses->clientid, true);
if (conf) {
cs_slot = &conf->cl_cs_slot;
status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
if (status == nfserr_replay_cache) {
status = nfsd4_replay_create_session(cr_ses, cs_slot);
- goto out;
+ goto out_free_conn;
} else if (cr_ses->seqid != cs_slot->sl_seqid + 1) {
status = nfserr_seq_misordered;
- goto out;
+ goto out_free_conn;
}
} else if (unconf) {
+ unsigned int hash;
+ struct nfs4_client *old;
if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred) ||
!rpc_cmp_addr(sa, (struct sockaddr *) &unconf->cl_addr)) {
status = nfserr_clid_inuse;
- goto out;
+ goto out_free_conn;
}
cs_slot = &unconf->cl_cs_slot;
status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
if (status) {
/* an unconfirmed replay returns misordered */
status = nfserr_seq_misordered;
- goto out;
+ goto out_free_conn;
}
- confirm_me = true;
+ hash = clientstr_hashval(unconf->cl_recdir);
+ old = find_confirmed_client_by_str(unconf->cl_recdir, hash);
+ if (old)
+ expire_client(old);
+ move_to_confirmed(unconf);
conf = unconf;
} else {
status = nfserr_stale_clientid;
- goto out;
+ goto out_free_conn;
}
-
- /*
- * XXX: we should probably set this at creation time, and check
- * for consistent minorversion use throughout:
- */
- conf->cl_minorversion = 1;
+ status = nfs_ok;
/*
* We do not support RDMA or persistent sessions
*/
cr_ses->flags &= ~SESSION4_PERSIST;
cr_ses->flags &= ~SESSION4_RDMA;
- status = nfserr_toosmall;
- if (check_forechannel_attrs(cr_ses->fore_channel))
- goto out;
+ init_session(rqstp, new, conf, cr_ses);
+ nfsd4_init_conn(rqstp, conn, new);
- status = nfserr_jukebox;
- new = alloc_init_session(rqstp, conf, cr_ses);
- if (!new)
- goto out;
- status = nfs_ok;
memcpy(cr_ses->sessionid.data, new->se_sessionid.data,
NFS4_MAX_SESSIONID_LEN);
memcpy(&cr_ses->fore_channel, &new->se_fchannel,
@@ -1813,18 +1832,15 @@ nfsd4_create_session(struct svc_rqst *rqstp,
/* cache solo and embedded create sessions under the state lock */
nfsd4_cache_create_session(cr_ses, cs_slot, status);
- if (confirm_me) {
- unsigned int hash = clientstr_hashval(unconf->cl_recdir);
- struct nfs4_client *old =
- find_confirmed_client_by_str(conf->cl_recdir, hash);
- if (old)
- expire_client(old);
- move_to_confirmed(conf);
- }
out:
nfs4_unlock_state();
dprintk("%s returns %d\n", __func__, ntohl(status));
return status;
+out_free_conn:
+ free_conn(conn);
+out_free_session:
+ __free_session(new);
+ goto out;
}
static bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
@@ -1854,6 +1870,7 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
struct nfsd4_bind_conn_to_session *bcts)
{
__be32 status;
+ struct nfsd4_conn *conn;
if (!nfsd4_last_compound_op(rqstp))
return nfserr_not_only_op;
@@ -1870,9 +1887,13 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
return nfserr_badsession;
status = nfsd4_map_bcts_dir(&bcts->dir);
- if (!status)
- nfsd4_new_conn(rqstp, cstate->session, bcts->dir);
- return status;
+ if (status)
+ return status;
+ conn = alloc_conn(rqstp, bcts->dir);
+ if (!conn)
+ return nfserr_jukebox;
+ nfsd4_init_conn(rqstp, conn, cstate->session);
+ return nfs_ok;
}
static bool nfsd4_compound_in_session(struct nfsd4_session *session, struct nfs4_sessionid *sid)
@@ -2085,8 +2106,8 @@ nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *csta
__be32 status = 0;
nfs4_lock_state();
- unconf = find_unconfirmed_client(&dc->clientid);
- conf = find_confirmed_client(&dc->clientid);
+ unconf = find_unconfirmed_client(&dc->clientid, true);
+ conf = find_confirmed_client(&dc->clientid, true);
if (conf) {
clp = conf;
@@ -2200,10 +2221,6 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
copy_clid(new, conf);
else /* case 4 (new client) or cases 2, 3 (client reboot): */
gen_clid(new);
- /*
- * XXX: we should probably set this at creation time, and check
- * for consistent minorversion use throughout:
- */
new->cl_minorversion = 0;
gen_callback(new, setclid, rqstp);
add_to_unconfirmed(new, strhashval);
@@ -2232,8 +2249,8 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
return nfserr_stale_clientid;
nfs4_lock_state();
- conf = find_confirmed_client(clid);
- unconf = find_unconfirmed_client(clid);
+ conf = find_confirmed_client(clid, false);
+ unconf = find_unconfirmed_client(clid, false);
/*
* We try hard to give out unique clientid's, so if we get an
* attempt to confirm the same clientid with a different cred,
@@ -2262,10 +2279,8 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
unsigned int hash = clientstr_hashval(unconf->cl_recdir);
conf = find_confirmed_client_by_str(unconf->cl_recdir, hash);
- if (conf) {
- nfsd4_client_record_remove(conf);
+ if (conf)
expire_client(conf);
- }
move_to_confirmed(unconf);
nfsd4_probe_callback(unconf);
}
@@ -2447,16 +2462,20 @@ same_owner_str(struct nfs4_stateowner *sop, struct xdr_netobj *owner,
}
static struct nfs4_openowner *
-find_openstateowner_str(unsigned int hashval, struct nfsd4_open *open)
+find_openstateowner_str(unsigned int hashval, struct nfsd4_open *open, bool sessions)
{
struct nfs4_stateowner *so;
struct nfs4_openowner *oo;
+ struct nfs4_client *clp;
list_for_each_entry(so, &ownerstr_hashtbl[hashval], so_strhash) {
if (!so->so_is_open_owner)
continue;
if (same_owner_str(so, &open->op_owner, &open->op_clientid)) {
oo = openowner(so);
+ clp = oo->oo_owner.so_client;
+ if ((bool)clp->cl_minorversion != sessions)
+ return NULL;
renew_client(oo->oo_owner.so_client);
return oo;
}
@@ -2600,10 +2619,10 @@ nfsd4_process_open1(struct nfsd4_compound_state *cstate,
return nfserr_jukebox;
strhashval = ownerstr_hashval(clientid->cl_id, &open->op_owner);
- oo = find_openstateowner_str(strhashval, open);
+ oo = find_openstateowner_str(strhashval, open, cstate->minorversion);
open->op_openowner = oo;
if (!oo) {
- clp = find_confirmed_client(clientid);
+ clp = find_confirmed_client(clientid, cstate->minorversion);
if (clp == NULL)
return nfserr_expired;
goto new_owner;
@@ -2705,11 +2724,6 @@ nfs4_check_open(struct nfs4_file *fp, struct nfsd4_open *open, struct nfs4_ol_st
return nfs_ok;
}
-static void nfs4_free_stateid(struct nfs4_ol_stateid *s)
-{
- kmem_cache_free(stateid_slab, s);
-}
-
static inline int nfs4_access_to_access(u32 nfs4_access)
{
int flags = 0;
@@ -3087,7 +3101,7 @@ void nfsd4_cleanup_open_state(struct nfsd4_open *open, __be32 status)
if (open->op_file)
nfsd4_free_file(open->op_file);
if (open->op_stp)
- nfs4_free_stateid(open->op_stp);
+ free_generic_stateid(open->op_stp);
}
__be32
@@ -3104,7 +3118,7 @@ nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfserr_stale_clientid;
if (STALE_CLIENTID(clid, nn))
goto out;
- clp = find_confirmed_client(clid);
+ clp = find_confirmed_client(clid, cstate->minorversion);
status = nfserr_expired;
if (clp == NULL) {
/* We assume the client took too long to RENEW. */
@@ -3180,7 +3194,6 @@ nfs4_laundromat(void)
clp = list_entry(pos, struct nfs4_client, cl_lru);
dprintk("NFSD: purging unused client (clientid %08x)\n",
clp->cl_clientid.cl_id);
- nfsd4_client_record_remove(clp);
expire_client(clp);
}
spin_lock(&recall_lock);
@@ -3372,7 +3385,7 @@ static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid)
return nfs_ok;
}
-static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, struct nfs4_stid **s)
+static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, struct nfs4_stid **s, bool sessions)
{
struct nfs4_client *cl;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
@@ -3381,7 +3394,7 @@ static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, s
return nfserr_bad_stateid;
if (STALE_STATEID(stateid, nn))
return nfserr_stale_stateid;
- cl = find_confirmed_client(&stateid->si_opaque.so_clid);
+ cl = find_confirmed_client(&stateid->si_opaque.so_clid, sessions);
if (!cl)
return nfserr_expired;
*s = find_stateid_by_type(cl, stateid, typemask);
@@ -3414,7 +3427,7 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
return check_special_stateids(net, current_fh, stateid, flags);
- status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID, &s);
+ status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID, &s, cstate->minorversion);
if (status)
return status;
status = check_stateid_generation(stateid, &s->sc_stateid, nfsd4_has_session(cstate));
@@ -3564,7 +3577,7 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
seqid, STATEID_VAL(stateid));
*stpp = NULL;
- status = nfsd4_lookup_stateid(stateid, typemask, &s);
+ status = nfsd4_lookup_stateid(stateid, typemask, &s, cstate->minorversion);
if (status)
return status;
*stpp = openlockstateid(s);
@@ -3765,6 +3778,7 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
memcpy(&close->cl_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
nfsd4_close_open_stateid(stp);
+ release_last_closed_stateid(oo);
oo->oo_last_closed_stid = stp;
if (list_empty(&oo->oo_owner.so_stateids)) {
@@ -3801,7 +3815,7 @@ nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
inode = cstate->current_fh.fh_dentry->d_inode;
nfs4_lock_state();
- status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID, &s);
+ status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID, &s, cstate->minorversion);
if (status)
goto out;
dp = delegstateid(s);
@@ -4045,8 +4059,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfs4_lockowner *lock_sop = NULL;
struct nfs4_ol_stateid *lock_stp;
struct file *filp = NULL;
- struct file_lock file_lock;
- struct file_lock conflock;
+ struct file_lock *file_lock = NULL;
+ struct file_lock *conflock = NULL;
__be32 status = 0;
bool new_state = false;
int lkflg;
@@ -4116,21 +4130,28 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (!locks_in_grace(SVC_NET(rqstp)) && lock->lk_reclaim)
goto out;
- locks_init_lock(&file_lock);
+ file_lock = locks_alloc_lock();
+ if (!file_lock) {
+ dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
+ status = nfserr_jukebox;
+ goto out;
+ }
+
+ locks_init_lock(file_lock);
switch (lock->lk_type) {
case NFS4_READ_LT:
case NFS4_READW_LT:
filp = find_readable_file(lock_stp->st_file);
if (filp)
get_lock_access(lock_stp, NFS4_SHARE_ACCESS_READ);
- file_lock.fl_type = F_RDLCK;
+ file_lock->fl_type = F_RDLCK;
break;
case NFS4_WRITE_LT:
case NFS4_WRITEW_LT:
filp = find_writeable_file(lock_stp->st_file);
if (filp)
get_lock_access(lock_stp, NFS4_SHARE_ACCESS_WRITE);
- file_lock.fl_type = F_WRLCK;
+ file_lock->fl_type = F_WRLCK;
break;
default:
status = nfserr_inval;
@@ -4140,22 +4161,23 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfserr_openmode;
goto out;
}
- file_lock.fl_owner = (fl_owner_t)lock_sop;
- file_lock.fl_pid = current->tgid;
- file_lock.fl_file = filp;
- file_lock.fl_flags = FL_POSIX;
- file_lock.fl_lmops = &nfsd_posix_mng_ops;
-
- file_lock.fl_start = lock->lk_offset;
- file_lock.fl_end = last_byte_offset(lock->lk_offset, lock->lk_length);
- nfs4_transform_lock_offset(&file_lock);
-
- /*
- * Try to lock the file in the VFS.
- * Note: locks.c uses the BKL to protect the inode's lock list.
- */
+ file_lock->fl_owner = (fl_owner_t)lock_sop;
+ file_lock->fl_pid = current->tgid;
+ file_lock->fl_file = filp;
+ file_lock->fl_flags = FL_POSIX;
+ file_lock->fl_lmops = &nfsd_posix_mng_ops;
+ file_lock->fl_start = lock->lk_offset;
+ file_lock->fl_end = last_byte_offset(lock->lk_offset, lock->lk_length);
+ nfs4_transform_lock_offset(file_lock);
+
+ conflock = locks_alloc_lock();
+ if (!conflock) {
+ dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
+ status = nfserr_jukebox;
+ goto out;
+ }
- err = vfs_lock_file(filp, F_SETLK, &file_lock, &conflock);
+ err = vfs_lock_file(filp, F_SETLK, file_lock, conflock);
switch (-err) {
case 0: /* success! */
update_stateid(&lock_stp->st_stid.sc_stateid);
@@ -4166,7 +4188,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
case (EAGAIN): /* conflock holds conflicting lock */
status = nfserr_denied;
dprintk("NFSD: nfsd4_lock: conflicting lock found!\n");
- nfs4_set_lock_denied(&conflock, &lock->lk_denied);
+ nfs4_set_lock_denied(conflock, &lock->lk_denied);
break;
case (EDEADLK):
status = nfserr_deadlock;
@@ -4181,6 +4203,10 @@ out:
release_lockowner(lock_sop);
if (!cstate->replay_owner)
nfs4_unlock_state();
+ if (file_lock)
+ locks_free_lock(file_lock);
+ if (conflock)
+ locks_free_lock(conflock);
return status;
}
@@ -4209,7 +4235,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_lockt *lockt)
{
struct inode *inode;
- struct file_lock file_lock;
+ struct file_lock *file_lock = NULL;
struct nfs4_lockowner *lo;
__be32 status;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
@@ -4230,15 +4256,21 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
goto out;
inode = cstate->current_fh.fh_dentry->d_inode;
- locks_init_lock(&file_lock);
+ file_lock = locks_alloc_lock();
+ if (!file_lock) {
+ dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
+ status = nfserr_jukebox;
+ goto out;
+ }
+ locks_init_lock(file_lock);
switch (lockt->lt_type) {
case NFS4_READ_LT:
case NFS4_READW_LT:
- file_lock.fl_type = F_RDLCK;
+ file_lock->fl_type = F_RDLCK;
break;
case NFS4_WRITE_LT:
case NFS4_WRITEW_LT:
- file_lock.fl_type = F_WRLCK;
+ file_lock->fl_type = F_WRLCK;
break;
default:
dprintk("NFSD: nfs4_lockt: bad lock type!\n");
@@ -4248,25 +4280,27 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
lo = find_lockowner_str(inode, &lockt->lt_clientid, &lockt->lt_owner);
if (lo)
- file_lock.fl_owner = (fl_owner_t)lo;
- file_lock.fl_pid = current->tgid;
- file_lock.fl_flags = FL_POSIX;
+ file_lock->fl_owner = (fl_owner_t)lo;
+ file_lock->fl_pid = current->tgid;
+ file_lock->fl_flags = FL_POSIX;
- file_lock.fl_start = lockt->lt_offset;
- file_lock.fl_end = last_byte_offset(lockt->lt_offset, lockt->lt_length);
+ file_lock->fl_start = lockt->lt_offset;
+ file_lock->fl_end = last_byte_offset(lockt->lt_offset, lockt->lt_length);
- nfs4_transform_lock_offset(&file_lock);
+ nfs4_transform_lock_offset(file_lock);
- status = nfsd_test_lock(rqstp, &cstate->current_fh, &file_lock);
+ status = nfsd_test_lock(rqstp, &cstate->current_fh, file_lock);
if (status)
goto out;
- if (file_lock.fl_type != F_UNLCK) {
+ if (file_lock->fl_type != F_UNLCK) {
status = nfserr_denied;
- nfs4_set_lock_denied(&file_lock, &lockt->lt_denied);
+ nfs4_set_lock_denied(file_lock, &lockt->lt_denied);
}
out:
nfs4_unlock_state();
+ if (file_lock)
+ locks_free_lock(file_lock);
return status;
}
@@ -4276,7 +4310,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
{
struct nfs4_ol_stateid *stp;
struct file *filp = NULL;
- struct file_lock file_lock;
+ struct file_lock *file_lock = NULL;
__be32 status;
int err;
@@ -4298,23 +4332,29 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfserr_lock_range;
goto out;
}
- BUG_ON(!filp);
- locks_init_lock(&file_lock);
- file_lock.fl_type = F_UNLCK;
- file_lock.fl_owner = (fl_owner_t)lockowner(stp->st_stateowner);
- file_lock.fl_pid = current->tgid;
- file_lock.fl_file = filp;
- file_lock.fl_flags = FL_POSIX;
- file_lock.fl_lmops = &nfsd_posix_mng_ops;
- file_lock.fl_start = locku->lu_offset;
-
- file_lock.fl_end = last_byte_offset(locku->lu_offset, locku->lu_length);
- nfs4_transform_lock_offset(&file_lock);
+ file_lock = locks_alloc_lock();
+ if (!file_lock) {
+ dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
+ status = nfserr_jukebox;
+ goto out;
+ }
+ locks_init_lock(file_lock);
+ file_lock->fl_type = F_UNLCK;
+ file_lock->fl_owner = (fl_owner_t)lockowner(stp->st_stateowner);
+ file_lock->fl_pid = current->tgid;
+ file_lock->fl_file = filp;
+ file_lock->fl_flags = FL_POSIX;
+ file_lock->fl_lmops = &nfsd_posix_mng_ops;
+ file_lock->fl_start = locku->lu_offset;
+
+ file_lock->fl_end = last_byte_offset(locku->lu_offset,
+ locku->lu_length);
+ nfs4_transform_lock_offset(file_lock);
/*
* Try to unlock the file in the VFS.
*/
- err = vfs_lock_file(filp, F_SETLK, &file_lock, NULL);
+ err = vfs_lock_file(filp, F_SETLK, file_lock, NULL);
if (err) {
dprintk("NFSD: nfs4_locku: vfs_lock_file failed!\n");
goto out_nfserr;
@@ -4328,6 +4368,8 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
out:
if (!cstate->replay_owner)
nfs4_unlock_state();
+ if (file_lock)
+ locks_free_lock(file_lock);
return status;
out_nfserr:
@@ -4501,12 +4543,12 @@ nfsd4_find_reclaim_client(struct nfs4_client *clp)
* Called from OPEN. Look for clientid in reclaim list.
*/
__be32
-nfs4_check_open_reclaim(clientid_t *clid)
+nfs4_check_open_reclaim(clientid_t *clid, bool sessions)
{
struct nfs4_client *clp;
/* find clientid in conf_id_hashtbl */
- clp = find_confirmed_client(clid);
+ clp = find_confirmed_client(clid, sessions);
if (clp == NULL)
return nfserr_reclaim_bad;
@@ -4522,7 +4564,6 @@ void nfsd_forget_clients(u64 num)
nfs4_lock_state();
list_for_each_entry_safe(clp, next, &client_lru, cl_lru) {
- nfsd4_client_record_remove(clp);
expire_client(clp);
if (++count == num)
break;
@@ -4582,7 +4623,7 @@ void nfsd_forget_openowners(u64 num)
printk(KERN_INFO "NFSD: Forgot %d open owners", count);
}
-int nfsd_process_n_delegations(u64 num, struct list_head *list)
+static int nfsd_process_n_delegations(u64 num, struct list_head *list)
{
int i, count = 0;
struct nfs4_file *fp, *fnext;
@@ -4747,11 +4788,11 @@ __nfs4_state_shutdown(void)
for (i = 0; i < CLIENT_HASH_SIZE; i++) {
while (!list_empty(&conf_id_hashtbl[i])) {
clp = list_entry(conf_id_hashtbl[i].next, struct nfs4_client, cl_idhash);
- expire_client(clp);
+ destroy_client(clp);
}
while (!list_empty(&unconf_str_hashtbl[i])) {
clp = list_entry(unconf_str_hashtbl[i].next, struct nfs4_client, cl_strhash);
- expire_client(clp);
+ destroy_client(clp);
}
}
INIT_LIST_HEAD(&reaplist);
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 6322df36031..fd548d15508 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2659,7 +2659,7 @@ static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp,
RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 8);
WRITEMEM(bcts->sessionid.data, NFS4_MAX_SESSIONID_LEN);
WRITE32(bcts->dir);
- /* XXX: ? */
+ /* Sorry, we do not yet support RDMA over 4.1: */
WRITE32(0);
ADJUST_ARGS();
}
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index fa49cff5ee6..dab350dfc37 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -406,7 +406,7 @@ static ssize_t write_threads(struct file *file, char *buf, size_t size)
return rv;
if (newthreads < 0)
return -EINVAL;
- rv = nfsd_svc(NFS_PORT, newthreads);
+ rv = nfsd_svc(newthreads);
if (rv < 0)
return rv;
} else
@@ -683,25 +683,6 @@ static ssize_t __write_ports_addfd(char *buf)
}
/*
- * A '-' followed by the 'name' of a socket means we close the socket.
- */
-static ssize_t __write_ports_delfd(char *buf)
-{
- char *toclose;
- int len = 0;
-
- toclose = kstrdup(buf + 1, GFP_KERNEL);
- if (toclose == NULL)
- return -ENOMEM;
-
- if (nfsd_serv != NULL)
- len = svc_sock_names(nfsd_serv, buf,
- SIMPLE_TRANSACTION_LIMIT, toclose);
- kfree(toclose);
- return len;
-}
-
-/*
* A transport listener is added by writing it's transport name and
* a port number.
*/
@@ -712,7 +693,7 @@ static ssize_t __write_ports_addxprt(char *buf)
int port, err;
struct net *net = &init_net;
- if (sscanf(buf, "%15s %4u", transport, &port) != 2)
+ if (sscanf(buf, "%15s %5u", transport, &port) != 2)
return -EINVAL;
if (port < 1 || port > USHRT_MAX)
@@ -746,31 +727,6 @@ out_err:
return err;
}
-/*
- * A transport listener is removed by writing a "-", it's transport
- * name, and it's port number.
- */
-static ssize_t __write_ports_delxprt(char *buf)
-{
- struct svc_xprt *xprt;
- char transport[16];
- int port;
-
- if (sscanf(&buf[1], "%15s %4u", transport, &port) != 2)
- return -EINVAL;
-
- if (port < 1 || port > USHRT_MAX || nfsd_serv == NULL)
- return -EINVAL;
-
- xprt = svc_find_xprt(nfsd_serv, transport, &init_net, AF_UNSPEC, port);
- if (xprt == NULL)
- return -ENOTCONN;
-
- svc_close_xprt(xprt);
- svc_xprt_put(xprt);
- return 0;
-}
-
static ssize_t __write_ports(struct file *file, char *buf, size_t size)
{
if (size == 0)
@@ -779,15 +735,9 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size)
if (isdigit(buf[0]))
return __write_ports_addfd(buf);
- if (buf[0] == '-' && isdigit(buf[1]))
- return __write_ports_delfd(buf);
-
if (isalpha(buf[0]))
return __write_ports_addxprt(buf);
- if (buf[0] == '-' && isalpha(buf[1]))
- return __write_ports_delxprt(buf);
-
return -EINVAL;
}
@@ -825,21 +775,6 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size)
* OR
*
* Input:
- * buf: C string containing a "-" followed
- * by an integer value representing a
- * previously passed in socket file
- * descriptor
- * size: non-zero length of C string in @buf
- * Output:
- * On success: NFS service no longer listens on that socket;
- * passed-in buffer filled with a '\n'-terminated C
- * string containing a unique name of the listener;
- * return code is the size in bytes of the string
- * On error: return code is a negative errno value
- *
- * OR
- *
- * Input:
* buf: C string containing a transport
* name and an unsigned integer value
* representing the port to listen on,
@@ -848,19 +783,6 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size)
* Output:
* On success: returns zero; NFS service is started
* On error: return code is a negative errno value
- *
- * OR
- *
- * Input:
- * buf: C string containing a "-" followed
- * by a transport name and an unsigned
- * integer value representing the port
- * to listen on, separated by whitespace
- * size: non-zero length of C string in @buf
- * Output:
- * On success: returns zero; NFS service no longer listens
- * on that transport
- * On error: return code is a negative errno value
*/
static ssize_t write_ports(struct file *file, char *buf, size_t size)
{
@@ -1008,8 +930,6 @@ static ssize_t write_gracetime(struct file *file, char *buf, size_t size)
return nfsd4_write_time(file, buf, size, &nfsd4_grace);
}
-extern char *nfs4_recoverydir(void);
-
static ssize_t __write_recoverydir(struct file *file, char *buf, size_t size)
{
char *mesg = buf;
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 2244222368a..80d5ce40aad 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -65,7 +65,7 @@ extern const struct seq_operations nfs_exports_op;
/*
* Function prototypes.
*/
-int nfsd_svc(unsigned short port, int nrservs);
+int nfsd_svc(int nrservs);
int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp);
int nfsd_nrthreads(void);
@@ -124,6 +124,7 @@ int nfs4_state_start(void);
void nfs4_state_shutdown(void);
void nfs4_reset_lease(time_t leasetime);
int nfs4_reset_recoverydir(char *recdir);
+char * nfs4_recoverydir(void);
#else
static inline void nfs4_state_init(void) { }
static inline int nfsd4_init_slabs(void) { return 0; }
@@ -132,6 +133,7 @@ static inline int nfs4_state_start(void) { return 0; }
static inline void nfs4_state_shutdown(void) { }
static inline void nfs4_reset_lease(time_t leasetime) { }
static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
+static inline char * nfs4_recoverydir(void) {return NULL; }
#endif
/*
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 240473cb708..2013aa001da 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -183,18 +183,18 @@ int nfsd_nrthreads(void)
return rv;
}
-static int nfsd_init_socks(int port)
+static int nfsd_init_socks(void)
{
int error;
if (!list_empty(&nfsd_serv->sv_permsocks))
return 0;
- error = svc_create_xprt(nfsd_serv, "udp", &init_net, PF_INET, port,
+ error = svc_create_xprt(nfsd_serv, "udp", &init_net, PF_INET, NFS_PORT,
SVC_SOCK_DEFAULTS);
if (error < 0)
return error;
- error = svc_create_xprt(nfsd_serv, "tcp", &init_net, PF_INET, port,
+ error = svc_create_xprt(nfsd_serv, "tcp", &init_net, PF_INET, NFS_PORT,
SVC_SOCK_DEFAULTS);
if (error < 0)
return error;
@@ -204,7 +204,7 @@ static int nfsd_init_socks(int port)
static bool nfsd_up = false;
-static int nfsd_startup(unsigned short port, int nrservs)
+static int nfsd_startup(int nrservs)
{
int ret;
@@ -218,7 +218,7 @@ static int nfsd_startup(unsigned short port, int nrservs)
ret = nfsd_racache_init(2*nrservs);
if (ret)
return ret;
- ret = nfsd_init_socks(port);
+ ret = nfsd_init_socks();
if (ret)
goto out_racache;
ret = lockd_up(&init_net);
@@ -436,7 +436,7 @@ int nfsd_set_nrthreads(int n, int *nthreads)
* this is the first time nrservs is nonzero.
*/
int
-nfsd_svc(unsigned short port, int nrservs)
+nfsd_svc(int nrservs)
{
int error;
bool nfsd_up_before;
@@ -458,7 +458,7 @@ nfsd_svc(unsigned short port, int nrservs)
nfsd_up_before = nfsd_up;
- error = nfsd_startup(port, nrservs);
+ error = nfsd_startup(nrservs);
if (error)
goto out_destroy;
error = svc_set_num_threads(nfsd_serv, NULL, nrservs);
@@ -487,7 +487,7 @@ static int
nfsd(void *vrqstp)
{
struct svc_rqst *rqstp = (struct svc_rqst *) vrqstp;
- int err, preverr = 0;
+ int err;
/* Lock module and set up kernel thread */
mutex_lock(&nfsd_mutex);
@@ -534,16 +534,6 @@ nfsd(void *vrqstp)
;
if (err == -EINTR)
break;
- else if (err < 0) {
- if (err != preverr) {
- printk(KERN_WARNING "%s: unexpected error "
- "from svc_recv (%d)\n", __func__, -err);
- preverr = err;
- }
- schedule_timeout_uninterruptible(HZ);
- continue;
- }
-
validate_process_creds();
svc_process(rqstp);
validate_process_creds();
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 22bd0a66c35..e036894bce5 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -373,11 +373,7 @@ static inline struct nfs4_lockowner * lockowner(struct nfs4_stateowner *so)
return container_of(so, struct nfs4_lockowner, lo_owner);
}
-/*
-* nfs4_file: a file opened by some number of (open) nfs4_stateowners.
-* o fi_perfile list is used to search for conflicting
-* share_acces, share_deny on the file.
-*/
+/* nfs4_file: a file opened by some number of (open) nfs4_stateowners. */
struct nfs4_file {
atomic_t fi_ref;
struct list_head fi_hash; /* hash by "struct inode *" */
@@ -459,7 +455,7 @@ extern void nfs4_unlock_state(void);
extern int nfs4_in_grace(void);
extern void nfs4_release_reclaim(void);
extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(struct nfs4_client *crp);
-extern __be32 nfs4_check_open_reclaim(clientid_t *clid);
+extern __be32 nfs4_check_open_reclaim(clientid_t *clid, bool sessions);
extern void nfs4_free_openowner(struct nfs4_openowner *);
extern void nfs4_free_lockowner(struct nfs4_lockowner *);
extern int set_callback_cred(void);
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 3f67b8e1225..c120b48ec30 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1581,7 +1581,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
*/
oldfs = get_fs(); set_fs(KERNEL_DS);
- host_err = inode->i_op->readlink(path.dentry, buf, *lenp);
+ host_err = inode->i_op->readlink(path.dentry, (char __user *)buf, *lenp);
set_fs(oldfs);
if (host_err < 0)
diff --git a/include/linux/nfsd/Kbuild b/include/linux/nfsd/Kbuild
index 5b7d84ac954..e69de29bb2d 100644
--- a/include/linux/nfsd/Kbuild
+++ b/include/linux/nfsd/Kbuild
@@ -1,5 +0,0 @@
-header-y += cld.h
-header-y += debug.h
-header-y += export.h
-header-y += nfsfh.h
-header-y += stats.h
diff --git a/include/linux/nfsd/debug.h b/include/linux/nfsd/debug.h
index ee4aa91788e..19ef8375b57 100644
--- a/include/linux/nfsd/debug.h
+++ b/include/linux/nfsd/debug.h
@@ -5,44 +5,15 @@
*
* Copyright (C) 1995 Olaf Kirch <okir@monad.swb.de>
*/
-
#ifndef LINUX_NFSD_DEBUG_H
#define LINUX_NFSD_DEBUG_H
-#include <linux/sunrpc/debug.h>
+#include <uapi/linux/nfsd/debug.h>
-/*
- * Enable debugging for nfsd.
- * Requires RPC_DEBUG.
- */
-#ifdef RPC_DEBUG
-# define NFSD_DEBUG 1
-#endif
-
-/*
- * knfsd debug flags
- */
-#define NFSDDBG_SOCK 0x0001
-#define NFSDDBG_FH 0x0002
-#define NFSDDBG_EXPORT 0x0004
-#define NFSDDBG_SVC 0x0008
-#define NFSDDBG_PROC 0x0010
-#define NFSDDBG_FILEOP 0x0020
-#define NFSDDBG_AUTH 0x0040
-#define NFSDDBG_REPCACHE 0x0080
-#define NFSDDBG_XDR 0x0100
-#define NFSDDBG_LOCKD 0x0200
-#define NFSDDBG_ALL 0x7FFF
-#define NFSDDBG_NOCHANGE 0xFFFF
-
-
-#ifdef __KERNEL__
# undef ifdebug
# ifdef NFSD_DEBUG
# define ifdebug(flag) if (nfsd_debug & NFSDDBG_##flag)
# else
# define ifdebug(flag) if (0)
# endif
-#endif /* __KERNEL__ */
-
#endif /* LINUX_NFSD_DEBUG_H */
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index e33f747b173..24c139288db 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -6,58 +6,11 @@
*
* Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
*/
-
#ifndef NFSD_EXPORT_H
#define NFSD_EXPORT_H
-# include <linux/types.h>
-#ifdef __KERNEL__
# include <linux/nfsd/nfsfh.h>
-#endif
-
-/*
- * Important limits for the exports stuff.
- */
-#define NFSCLNT_IDMAX 1024
-#define NFSCLNT_ADDRMAX 16
-#define NFSCLNT_KEYMAX 32
-
-/*
- * Export flags.
- */
-#define NFSEXP_READONLY 0x0001
-#define NFSEXP_INSECURE_PORT 0x0002
-#define NFSEXP_ROOTSQUASH 0x0004
-#define NFSEXP_ALLSQUASH 0x0008
-#define NFSEXP_ASYNC 0x0010
-#define NFSEXP_GATHERED_WRITES 0x0020
-/* 40 80 100 currently unused */
-#define NFSEXP_NOHIDE 0x0200
-#define NFSEXP_NOSUBTREECHECK 0x0400
-#define NFSEXP_NOAUTHNLM 0x0800 /* Don't authenticate NLM requests - just trust */
-#define NFSEXP_MSNFS 0x1000 /* do silly things that MS clients expect; no longer supported */
-#define NFSEXP_FSID 0x2000
-#define NFSEXP_CROSSMOUNT 0x4000
-#define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */
-/*
- * The NFSEXP_V4ROOT flag causes the kernel to give access only to NFSv4
- * clients, and only to the single directory that is the root of the
- * export; further lookup and readdir operations are treated as if every
- * subdirectory was a mountpoint, and ignored if they are not themselves
- * exported. This is used by nfsd and mountd to construct the NFSv4
- * pseudofilesystem, which provides access only to paths leading to each
- * exported filesystem.
- */
-#define NFSEXP_V4ROOT 0x10000
-/* All flags that we claim to support. (Note we don't support NOACL.) */
-#define NFSEXP_ALLFLAGS 0x17E3F
-
-/* The flags that may vary depending on security flavor: */
-#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
- | NFSEXP_ALLSQUASH \
- | NFSEXP_INSECURE_PORT)
-
-#ifdef __KERNEL__
+#include <uapi/linux/nfsd/export.h>
/*
* FS Locations
@@ -154,7 +107,4 @@ static inline void exp_get(struct svc_export *exp)
}
struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *);
-#endif /* __KERNEL__ */
-
#endif /* NFSD_EXPORT_H */
-
diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h
index fa63048fecf..a93593f1fa4 100644
--- a/include/linux/nfsd/nfsfh.h
+++ b/include/linux/nfsd/nfsfh.h
@@ -10,117 +10,11 @@
*
* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
*/
-
#ifndef _LINUX_NFSD_FH_H
#define _LINUX_NFSD_FH_H
-#include <linux/types.h>
-#include <linux/nfs.h>
-#include <linux/nfs2.h>
-#include <linux/nfs3.h>
-#include <linux/nfs4.h>
-#ifdef __KERNEL__
# include <linux/sunrpc/svc.h>
-#endif
-
-/*
- * This is the old "dentry style" Linux NFSv2 file handle.
- *
- * The xino and xdev fields are currently used to transport the
- * ino/dev of the exported inode.
- */
-struct nfs_fhbase_old {
- __u32 fb_dcookie; /* dentry cookie - always 0xfeebbaca */
- __u32 fb_ino; /* our inode number */
- __u32 fb_dirino; /* dir inode number, 0 for directories */
- __u32 fb_dev; /* our device */
- __u32 fb_xdev;
- __u32 fb_xino;
- __u32 fb_generation;
-};
-
-/*
- * This is the new flexible, extensible style NFSv2/v3 file handle.
- * by Neil Brown <neilb@cse.unsw.edu.au> - March 2000
- *
- * The file handle starts with a sequence of four-byte words.
- * The first word contains a version number (1) and three descriptor bytes
- * that tell how the remaining 3 variable length fields should be handled.
- * These three bytes are auth_type, fsid_type and fileid_type.
- *
- * All four-byte values are in host-byte-order.
- *
- * The auth_type field specifies how the filehandle can be authenticated
- * This might allow a file to be confirmed to be in a writable part of a
- * filetree without checking the path from it up to the root.
- * Current values:
- * 0 - No authentication. fb_auth is 0 bytes long
- * Possible future values:
- * 1 - 4 bytes taken from MD5 hash of the remainer of the file handle
- * prefixed by a secret and with the important export flags.
- *
- * The fsid_type identifies how the filesystem (or export point) is
- * encoded.
- * Current values:
- * 0 - 4 byte device id (ms-2-bytes major, ls-2-bytes minor), 4byte inode number
- * NOTE: we cannot use the kdev_t device id value, because kdev_t.h
- * says we mustn't. We must break it up and reassemble.
- * 1 - 4 byte user specified identifier
- * 2 - 4 byte major, 4 byte minor, 4 byte inode number - DEPRECATED
- * 3 - 4 byte device id, encoded for user-space, 4 byte inode number
- * 4 - 4 byte inode number and 4 byte uuid
- * 5 - 8 byte uuid
- * 6 - 16 byte uuid
- * 7 - 8 byte inode number and 16 byte uuid
- *
- * The fileid_type identified how the file within the filesystem is encoded.
- * This is (will be) passed to, and set by, the underlying filesystem if it supports
- * filehandle operations. The filesystem must not use the value '0' or '0xff' and may
- * only use the values 1 and 2 as defined below:
- * Current values:
- * 0 - The root, or export point, of the filesystem. fb_fileid is 0 bytes.
- * 1 - 32bit inode number, 32 bit generation number.
- * 2 - 32bit inode number, 32 bit generation number, 32 bit parent directory inode number.
- *
- */
-struct nfs_fhbase_new {
- __u8 fb_version; /* == 1, even => nfs_fhbase_old */
- __u8 fb_auth_type;
- __u8 fb_fsid_type;
- __u8 fb_fileid_type;
- __u32 fb_auth[1];
-/* __u32 fb_fsid[0]; floating */
-/* __u32 fb_fileid[0]; floating */
-};
-
-struct knfsd_fh {
- unsigned int fh_size; /* significant for NFSv3.
- * Points to the current size while building
- * a new file handle
- */
- union {
- struct nfs_fhbase_old fh_old;
- __u32 fh_pad[NFS4_FHSIZE/4];
- struct nfs_fhbase_new fh_new;
- } fh_base;
-};
-
-#define ofh_dcookie fh_base.fh_old.fb_dcookie
-#define ofh_ino fh_base.fh_old.fb_ino
-#define ofh_dirino fh_base.fh_old.fb_dirino
-#define ofh_dev fh_base.fh_old.fb_dev
-#define ofh_xdev fh_base.fh_old.fb_xdev
-#define ofh_xino fh_base.fh_old.fb_xino
-#define ofh_generation fh_base.fh_old.fb_generation
-
-#define fh_version fh_base.fh_new.fb_version
-#define fh_fsid_type fh_base.fh_new.fb_fsid_type
-#define fh_auth_type fh_base.fh_new.fb_auth_type
-#define fh_fileid_type fh_base.fh_new.fb_fileid_type
-#define fh_auth fh_base.fh_new.fb_auth
-#define fh_fsid fh_base.fh_new.fb_auth
-
-#ifdef __KERNEL__
+#include <uapi/linux/nfsd/nfsfh.h>
static inline __u32 ino_t_to_u32(ino_t ino)
{
@@ -166,7 +60,4 @@ typedef struct svc_fh {
} svc_fh;
-#endif /* __KERNEL__ */
-
-
#endif /* _LINUX_NFSD_FH_H */
diff --git a/include/linux/nfsd/stats.h b/include/linux/nfsd/stats.h
index 2693ef647df..e75b2544ff1 100644
--- a/include/linux/nfsd/stats.h
+++ b/include/linux/nfsd/stats.h
@@ -5,16 +5,11 @@
*
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
-
#ifndef LINUX_NFSD_STATS_H
#define LINUX_NFSD_STATS_H
-#include <linux/nfs4.h>
-
-/* thread usage wraps very million seconds (approx one fortnight) */
-#define NFSD_USAGE_WRAP (HZ*1000000)
+#include <uapi/linux/nfsd/stats.h>
-#ifdef __KERNEL__
struct nfsd_stats {
unsigned int rchits; /* repcache hits */
@@ -47,5 +42,4 @@ extern struct svc_stat nfsd_svcstats;
void nfsd_stat_init(void);
void nfsd_stat_shutdown(void);
-#endif /* __KERNEL__ */
#endif /* LINUX_NFSD_STATS_H */
diff --git a/include/linux/sunrpc/Kbuild b/include/linux/sunrpc/Kbuild
index 98df21164a8..e69de29bb2d 100644
--- a/include/linux/sunrpc/Kbuild
+++ b/include/linux/sunrpc/Kbuild
@@ -1 +0,0 @@
-header-y += debug.h
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index a76cc20d98c..9385bd74c86 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -5,28 +5,11 @@
*
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
*/
-
#ifndef _LINUX_SUNRPC_DEBUG_H_
#define _LINUX_SUNRPC_DEBUG_H_
-/*
- * RPC debug facilities
- */
-#define RPCDBG_XPRT 0x0001
-#define RPCDBG_CALL 0x0002
-#define RPCDBG_DEBUG 0x0004
-#define RPCDBG_NFS 0x0008
-#define RPCDBG_AUTH 0x0010
-#define RPCDBG_BIND 0x0020
-#define RPCDBG_SCHED 0x0040
-#define RPCDBG_TRANS 0x0080
-#define RPCDBG_SVCXPRT 0x0100
-#define RPCDBG_SVCDSP 0x0200
-#define RPCDBG_MISC 0x0400
-#define RPCDBG_CACHE 0x0800
-#define RPCDBG_ALL 0x7fff
+#include <uapi/linux/sunrpc/debug.h>
-#ifdef __KERNEL__
/*
* Enable RPC debugging/profiling.
@@ -87,24 +70,4 @@ void rpc_register_sysctl(void);
void rpc_unregister_sysctl(void);
#endif
-#endif /* __KERNEL__ */
-
-/*
- * Declarations for the sysctl debug interface, which allows to read or
- * change the debug flags for rpc, nfs, nfsd, and lockd. Since the sunrpc
- * module currently registers its sysctl table dynamically, the sysctl path
- * for module FOO is <CTL_SUNRPC, CTL_FOODEBUG>.
- */
-
-enum {
- CTL_RPCDEBUG = 1,
- CTL_NFSDEBUG,
- CTL_NFSDDEBUG,
- CTL_NLMDEBUG,
- CTL_SLOTTABLE_UDP,
- CTL_SLOTTABLE_TCP,
- CTL_MIN_RESVPORT,
- CTL_MAX_RESVPORT,
-};
-
#endif /* _LINUX_SUNRPC_DEBUG_H_ */
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index b3f64b12f14..b05963f09eb 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -114,7 +114,6 @@ void svc_xprt_init(struct net *, struct svc_xprt_class *, struct svc_xprt *,
int svc_create_xprt(struct svc_serv *, const char *, struct net *,
const int, const unsigned short, int);
void svc_xprt_enqueue(struct svc_xprt *xprt);
-void svc_xprt_received(struct svc_xprt *);
void svc_xprt_put(struct svc_xprt *xprt);
void svc_xprt_copy_addrs(struct svc_rqst *rqstp, struct svc_xprt *xprt);
void svc_close_xprt(struct svc_xprt *xprt);
@@ -124,6 +123,7 @@ struct svc_xprt *svc_find_xprt(struct svc_serv *serv, const char *xcl_name,
struct net *net, const sa_family_t af,
const unsigned short port);
int svc_xprt_names(struct svc_serv *serv, char *buf, const int buflen);
+void svc_add_new_perm_xprt(struct svc_serv *serv, struct svc_xprt *xprt);
static inline void svc_xprt_get(struct svc_xprt *xprt)
{
@@ -166,8 +166,7 @@ static inline size_t svc_addr_len(const struct sockaddr *sa)
case AF_INET6:
return sizeof(struct sockaddr_in6);
}
-
- return 0;
+ BUG();
}
static inline unsigned short svc_xprt_local_port(const struct svc_xprt *xprt)
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index cb4ac69e1f3..92ad02f0dcc 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -39,9 +39,6 @@ int svc_recv(struct svc_rqst *, long);
int svc_send(struct svc_rqst *);
void svc_drop(struct svc_rqst *);
void svc_sock_update_bufs(struct svc_serv *serv);
-int svc_sock_names(struct svc_serv *serv, char *buf,
- const size_t buflen,
- const char *toclose);
int svc_addsock(struct svc_serv *serv, const int fd,
char *name_return, const size_t len);
void svc_init_xprt_sock(void);
diff --git a/include/uapi/linux/nfsd/Kbuild b/include/uapi/linux/nfsd/Kbuild
index aafaa5aa54d..c11bc404053 100644
--- a/include/uapi/linux/nfsd/Kbuild
+++ b/include/uapi/linux/nfsd/Kbuild
@@ -1 +1,6 @@
# UAPI Header export list
+header-y += cld.h
+header-y += debug.h
+header-y += export.h
+header-y += nfsfh.h
+header-y += stats.h
diff --git a/include/linux/nfsd/cld.h b/include/uapi/linux/nfsd/cld.h
index f14a9ab06f1..f14a9ab06f1 100644
--- a/include/linux/nfsd/cld.h
+++ b/include/uapi/linux/nfsd/cld.h
diff --git a/include/uapi/linux/nfsd/debug.h b/include/uapi/linux/nfsd/debug.h
new file mode 100644
index 00000000000..a6f453c740b
--- /dev/null
+++ b/include/uapi/linux/nfsd/debug.h
@@ -0,0 +1,40 @@
+/*
+ * linux/include/linux/nfsd/debug.h
+ *
+ * Debugging-related stuff for nfsd
+ *
+ * Copyright (C) 1995 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _UAPILINUX_NFSD_DEBUG_H
+#define _UAPILINUX_NFSD_DEBUG_H
+
+#include <linux/sunrpc/debug.h>
+
+/*
+ * Enable debugging for nfsd.
+ * Requires RPC_DEBUG.
+ */
+#ifdef RPC_DEBUG
+# define NFSD_DEBUG 1
+#endif
+
+/*
+ * knfsd debug flags
+ */
+#define NFSDDBG_SOCK 0x0001
+#define NFSDDBG_FH 0x0002
+#define NFSDDBG_EXPORT 0x0004
+#define NFSDDBG_SVC 0x0008
+#define NFSDDBG_PROC 0x0010
+#define NFSDDBG_FILEOP 0x0020
+#define NFSDDBG_AUTH 0x0040
+#define NFSDDBG_REPCACHE 0x0080
+#define NFSDDBG_XDR 0x0100
+#define NFSDDBG_LOCKD 0x0200
+#define NFSDDBG_ALL 0x7FFF
+#define NFSDDBG_NOCHANGE 0xFFFF
+
+
+
+#endif /* _UAPILINUX_NFSD_DEBUG_H */
diff --git a/include/uapi/linux/nfsd/export.h b/include/uapi/linux/nfsd/export.h
new file mode 100644
index 00000000000..cf47c313794
--- /dev/null
+++ b/include/uapi/linux/nfsd/export.h
@@ -0,0 +1,58 @@
+/*
+ * include/linux/nfsd/export.h
+ *
+ * Public declarations for NFS exports. The definitions for the
+ * syscall interface are in nfsctl.h
+ *
+ * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _UAPINFSD_EXPORT_H
+#define _UAPINFSD_EXPORT_H
+
+# include <linux/types.h>
+
+/*
+ * Important limits for the exports stuff.
+ */
+#define NFSCLNT_IDMAX 1024
+#define NFSCLNT_ADDRMAX 16
+#define NFSCLNT_KEYMAX 32
+
+/*
+ * Export flags.
+ */
+#define NFSEXP_READONLY 0x0001
+#define NFSEXP_INSECURE_PORT 0x0002
+#define NFSEXP_ROOTSQUASH 0x0004
+#define NFSEXP_ALLSQUASH 0x0008
+#define NFSEXP_ASYNC 0x0010
+#define NFSEXP_GATHERED_WRITES 0x0020
+/* 40 80 100 currently unused */
+#define NFSEXP_NOHIDE 0x0200
+#define NFSEXP_NOSUBTREECHECK 0x0400
+#define NFSEXP_NOAUTHNLM 0x0800 /* Don't authenticate NLM requests - just trust */
+#define NFSEXP_MSNFS 0x1000 /* do silly things that MS clients expect; no longer supported */
+#define NFSEXP_FSID 0x2000
+#define NFSEXP_CROSSMOUNT 0x4000
+#define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */
+/*
+ * The NFSEXP_V4ROOT flag causes the kernel to give access only to NFSv4
+ * clients, and only to the single directory that is the root of the
+ * export; further lookup and readdir operations are treated as if every
+ * subdirectory was a mountpoint, and ignored if they are not themselves
+ * exported. This is used by nfsd and mountd to construct the NFSv4
+ * pseudofilesystem, which provides access only to paths leading to each
+ * exported filesystem.
+ */
+#define NFSEXP_V4ROOT 0x10000
+/* All flags that we claim to support. (Note we don't support NOACL.) */
+#define NFSEXP_ALLFLAGS 0x17E3F
+
+/* The flags that may vary depending on security flavor: */
+#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
+ | NFSEXP_ALLSQUASH \
+ | NFSEXP_INSECURE_PORT)
+
+
+#endif /* _UAPINFSD_EXPORT_H */
diff --git a/include/uapi/linux/nfsd/nfsfh.h b/include/uapi/linux/nfsd/nfsfh.h
new file mode 100644
index 00000000000..616e3b39647
--- /dev/null
+++ b/include/uapi/linux/nfsd/nfsfh.h
@@ -0,0 +1,122 @@
+/*
+ * include/linux/nfsd/nfsfh.h
+ *
+ * This file describes the layout of the file handles as passed
+ * over the wire.
+ *
+ * Earlier versions of knfsd used to sign file handles using keyed MD5
+ * or SHA. I've removed this code, because it doesn't give you more
+ * security than blocking external access to port 2049 on your firewall.
+ *
+ * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _UAPI_LINUX_NFSD_FH_H
+#define _UAPI_LINUX_NFSD_FH_H
+
+#include <linux/types.h>
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs3.h>
+#include <linux/nfs4.h>
+
+/*
+ * This is the old "dentry style" Linux NFSv2 file handle.
+ *
+ * The xino and xdev fields are currently used to transport the
+ * ino/dev of the exported inode.
+ */
+struct nfs_fhbase_old {
+ __u32 fb_dcookie; /* dentry cookie - always 0xfeebbaca */
+ __u32 fb_ino; /* our inode number */
+ __u32 fb_dirino; /* dir inode number, 0 for directories */
+ __u32 fb_dev; /* our device */
+ __u32 fb_xdev;
+ __u32 fb_xino;
+ __u32 fb_generation;
+};
+
+/*
+ * This is the new flexible, extensible style NFSv2/v3 file handle.
+ * by Neil Brown <neilb@cse.unsw.edu.au> - March 2000
+ *
+ * The file handle starts with a sequence of four-byte words.
+ * The first word contains a version number (1) and three descriptor bytes
+ * that tell how the remaining 3 variable length fields should be handled.
+ * These three bytes are auth_type, fsid_type and fileid_type.
+ *
+ * All four-byte values are in host-byte-order.
+ *
+ * The auth_type field specifies how the filehandle can be authenticated
+ * This might allow a file to be confirmed to be in a writable part of a
+ * filetree without checking the path from it up to the root.
+ * Current values:
+ * 0 - No authentication. fb_auth is 0 bytes long
+ * Possible future values:
+ * 1 - 4 bytes taken from MD5 hash of the remainer of the file handle
+ * prefixed by a secret and with the important export flags.
+ *
+ * The fsid_type identifies how the filesystem (or export point) is
+ * encoded.
+ * Current values:
+ * 0 - 4 byte device id (ms-2-bytes major, ls-2-bytes minor), 4byte inode number
+ * NOTE: we cannot use the kdev_t device id value, because kdev_t.h
+ * says we mustn't. We must break it up and reassemble.
+ * 1 - 4 byte user specified identifier
+ * 2 - 4 byte major, 4 byte minor, 4 byte inode number - DEPRECATED
+ * 3 - 4 byte device id, encoded for user-space, 4 byte inode number
+ * 4 - 4 byte inode number and 4 byte uuid
+ * 5 - 8 byte uuid
+ * 6 - 16 byte uuid
+ * 7 - 8 byte inode number and 16 byte uuid
+ *
+ * The fileid_type identified how the file within the filesystem is encoded.
+ * This is (will be) passed to, and set by, the underlying filesystem if it supports
+ * filehandle operations. The filesystem must not use the value '0' or '0xff' and may
+ * only use the values 1 and 2 as defined below:
+ * Current values:
+ * 0 - The root, or export point, of the filesystem. fb_fileid is 0 bytes.
+ * 1 - 32bit inode number, 32 bit generation number.
+ * 2 - 32bit inode number, 32 bit generation number, 32 bit parent directory inode number.
+ *
+ */
+struct nfs_fhbase_new {
+ __u8 fb_version; /* == 1, even => nfs_fhbase_old */
+ __u8 fb_auth_type;
+ __u8 fb_fsid_type;
+ __u8 fb_fileid_type;
+ __u32 fb_auth[1];
+/* __u32 fb_fsid[0]; floating */
+/* __u32 fb_fileid[0]; floating */
+};
+
+struct knfsd_fh {
+ unsigned int fh_size; /* significant for NFSv3.
+ * Points to the current size while building
+ * a new file handle
+ */
+ union {
+ struct nfs_fhbase_old fh_old;
+ __u32 fh_pad[NFS4_FHSIZE/4];
+ struct nfs_fhbase_new fh_new;
+ } fh_base;
+};
+
+#define ofh_dcookie fh_base.fh_old.fb_dcookie
+#define ofh_ino fh_base.fh_old.fb_ino
+#define ofh_dirino fh_base.fh_old.fb_dirino
+#define ofh_dev fh_base.fh_old.fb_dev
+#define ofh_xdev fh_base.fh_old.fb_xdev
+#define ofh_xino fh_base.fh_old.fb_xino
+#define ofh_generation fh_base.fh_old.fb_generation
+
+#define fh_version fh_base.fh_new.fb_version
+#define fh_fsid_type fh_base.fh_new.fb_fsid_type
+#define fh_auth_type fh_base.fh_new.fb_auth_type
+#define fh_fileid_type fh_base.fh_new.fb_fileid_type
+#define fh_auth fh_base.fh_new.fb_auth
+#define fh_fsid fh_base.fh_new.fb_auth
+
+
+
+#endif /* _UAPI_LINUX_NFSD_FH_H */
diff --git a/include/uapi/linux/nfsd/stats.h b/include/uapi/linux/nfsd/stats.h
new file mode 100644
index 00000000000..9fb7a064426
--- /dev/null
+++ b/include/uapi/linux/nfsd/stats.h
@@ -0,0 +1,17 @@
+/*
+ * linux/include/linux/nfsd/stats.h
+ *
+ * Statistics for NFS server.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _UAPILINUX_NFSD_STATS_H
+#define _UAPILINUX_NFSD_STATS_H
+
+#include <linux/nfs4.h>
+
+/* thread usage wraps very million seconds (approx one fortnight) */
+#define NFSD_USAGE_WRAP (HZ*1000000)
+
+#endif /* _UAPILINUX_NFSD_STATS_H */
diff --git a/include/uapi/linux/sunrpc/Kbuild b/include/uapi/linux/sunrpc/Kbuild
index aafaa5aa54d..8e02e47c20f 100644
--- a/include/uapi/linux/sunrpc/Kbuild
+++ b/include/uapi/linux/sunrpc/Kbuild
@@ -1 +1,2 @@
# UAPI Header export list
+header-y += debug.h
diff --git a/include/uapi/linux/sunrpc/debug.h b/include/uapi/linux/sunrpc/debug.h
new file mode 100644
index 00000000000..830e34493a8
--- /dev/null
+++ b/include/uapi/linux/sunrpc/debug.h
@@ -0,0 +1,48 @@
+/*
+ * linux/include/linux/sunrpc/debug.h
+ *
+ * Debugging support for sunrpc module
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _UAPI_LINUX_SUNRPC_DEBUG_H_
+#define _UAPI_LINUX_SUNRPC_DEBUG_H_
+
+/*
+ * RPC debug facilities
+ */
+#define RPCDBG_XPRT 0x0001
+#define RPCDBG_CALL 0x0002
+#define RPCDBG_DEBUG 0x0004
+#define RPCDBG_NFS 0x0008
+#define RPCDBG_AUTH 0x0010
+#define RPCDBG_BIND 0x0020
+#define RPCDBG_SCHED 0x0040
+#define RPCDBG_TRANS 0x0080
+#define RPCDBG_SVCXPRT 0x0100
+#define RPCDBG_SVCDSP 0x0200
+#define RPCDBG_MISC 0x0400
+#define RPCDBG_CACHE 0x0800
+#define RPCDBG_ALL 0x7fff
+
+
+/*
+ * Declarations for the sysctl debug interface, which allows to read or
+ * change the debug flags for rpc, nfs, nfsd, and lockd. Since the sunrpc
+ * module currently registers its sysctl table dynamically, the sysctl path
+ * for module FOO is <CTL_SUNRPC, CTL_FOODEBUG>.
+ */
+
+enum {
+ CTL_RPCDEBUG = 1,
+ CTL_NFSDEBUG,
+ CTL_NFSDDEBUG,
+ CTL_NLMDEBUG,
+ CTL_SLOTTABLE_UDP,
+ CTL_SLOTTABLE_TCP,
+ CTL_MIN_RESVPORT,
+ CTL_MAX_RESVPORT,
+};
+
+#endif /* _UAPI_LINUX_SUNRPC_DEBUG_H_ */
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index bac973a3136..194d865fae7 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -208,6 +208,35 @@ static struct svc_xprt *__svc_xpo_create(struct svc_xprt_class *xcl,
return xcl->xcl_ops->xpo_create(serv, net, sap, len, flags);
}
+/*
+ * svc_xprt_received conditionally queues the transport for processing
+ * by another thread. The caller must hold the XPT_BUSY bit and must
+ * not thereafter touch transport data.
+ *
+ * Note: XPT_DATA only gets cleared when a read-attempt finds no (or
+ * insufficient) data.
+ */
+static void svc_xprt_received(struct svc_xprt *xprt)
+{
+ BUG_ON(!test_bit(XPT_BUSY, &xprt->xpt_flags));
+ /* As soon as we clear busy, the xprt could be closed and
+ * 'put', so we need a reference to call svc_xprt_enqueue with:
+ */
+ svc_xprt_get(xprt);
+ clear_bit(XPT_BUSY, &xprt->xpt_flags);
+ svc_xprt_enqueue(xprt);
+ svc_xprt_put(xprt);
+}
+
+void svc_add_new_perm_xprt(struct svc_serv *serv, struct svc_xprt *new)
+{
+ clear_bit(XPT_TEMP, &new->xpt_flags);
+ spin_lock_bh(&serv->sv_lock);
+ list_add(&new->xpt_list, &serv->sv_permsocks);
+ spin_unlock_bh(&serv->sv_lock);
+ svc_xprt_received(new);
+}
+
int svc_create_xprt(struct svc_serv *serv, const char *xprt_name,
struct net *net, const int family,
const unsigned short port, int flags)
@@ -232,13 +261,8 @@ int svc_create_xprt(struct svc_serv *serv, const char *xprt_name,
module_put(xcl->xcl_owner);
return PTR_ERR(newxprt);
}
-
- clear_bit(XPT_TEMP, &newxprt->xpt_flags);
- spin_lock_bh(&serv->sv_lock);
- list_add(&newxprt->xpt_list, &serv->sv_permsocks);
- spin_unlock_bh(&serv->sv_lock);
+ svc_add_new_perm_xprt(serv, newxprt);
newport = svc_xprt_local_port(newxprt);
- clear_bit(XPT_BUSY, &newxprt->xpt_flags);
return newport;
}
err:
@@ -394,27 +418,6 @@ static struct svc_xprt *svc_xprt_dequeue(struct svc_pool *pool)
return xprt;
}
-/*
- * svc_xprt_received conditionally queues the transport for processing
- * by another thread. The caller must hold the XPT_BUSY bit and must
- * not thereafter touch transport data.
- *
- * Note: XPT_DATA only gets cleared when a read-attempt finds no (or
- * insufficient) data.
- */
-void svc_xprt_received(struct svc_xprt *xprt)
-{
- BUG_ON(!test_bit(XPT_BUSY, &xprt->xpt_flags));
- /* As soon as we clear busy, the xprt could be closed and
- * 'put', so we need a reference to call svc_xprt_enqueue with:
- */
- svc_xprt_get(xprt);
- clear_bit(XPT_BUSY, &xprt->xpt_flags);
- svc_xprt_enqueue(xprt);
- svc_xprt_put(xprt);
-}
-EXPORT_SYMBOL_GPL(svc_xprt_received);
-
/**
* svc_reserve - change the space reserved for the reply to a request.
* @rqstp: The request in question
@@ -565,33 +568,12 @@ static void svc_check_conn_limits(struct svc_serv *serv)
}
}
-/*
- * Receive the next request on any transport. This code is carefully
- * organised not to touch any cachelines in the shared svc_serv
- * structure, only cachelines in the local svc_pool.
- */
-int svc_recv(struct svc_rqst *rqstp, long timeout)
+int svc_alloc_arg(struct svc_rqst *rqstp)
{
- struct svc_xprt *xprt = NULL;
- struct svc_serv *serv = rqstp->rq_server;
- struct svc_pool *pool = rqstp->rq_pool;
- int len, i;
- int pages;
- struct xdr_buf *arg;
- DECLARE_WAITQUEUE(wait, current);
- long time_left;
-
- dprintk("svc: server %p waiting for data (to = %ld)\n",
- rqstp, timeout);
-
- if (rqstp->rq_xprt)
- printk(KERN_ERR
- "svc_recv: service %p, transport not NULL!\n",
- rqstp);
- if (waitqueue_active(&rqstp->rq_wait))
- printk(KERN_ERR
- "svc_recv: service %p, wait queue active!\n",
- rqstp);
+ struct svc_serv *serv = rqstp->rq_server;
+ struct xdr_buf *arg;
+ int pages;
+ int i;
/* now allocate needed pages. If we get a failure, sleep briefly */
pages = (serv->sv_max_mesg + PAGE_SIZE) / PAGE_SIZE;
@@ -621,11 +603,15 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
arg->page_len = (pages-2)*PAGE_SIZE;
arg->len = (pages-1)*PAGE_SIZE;
arg->tail[0].iov_len = 0;
+ return 0;
+}
- try_to_freeze();
- cond_resched();
- if (signalled() || kthread_should_stop())
- return -EINTR;
+struct svc_xprt *svc_get_next_xprt(struct svc_rqst *rqstp, long timeout)
+{
+ struct svc_xprt *xprt;
+ struct svc_pool *pool = rqstp->rq_pool;
+ DECLARE_WAITQUEUE(wait, current);
+ long time_left;
/* Normally we will wait up to 5 seconds for any required
* cache information to be provided.
@@ -663,7 +649,7 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
if (kthread_should_stop()) {
set_current_state(TASK_RUNNING);
spin_unlock_bh(&pool->sp_lock);
- return -EINTR;
+ return ERR_PTR(-EINTR);
}
add_wait_queue(&rqstp->rq_wait, &wait);
@@ -684,48 +670,58 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
spin_unlock_bh(&pool->sp_lock);
dprintk("svc: server %p, no data yet\n", rqstp);
if (signalled() || kthread_should_stop())
- return -EINTR;
+ return ERR_PTR(-EINTR);
else
- return -EAGAIN;
+ return ERR_PTR(-EAGAIN);
}
}
spin_unlock_bh(&pool->sp_lock);
+ return xprt;
+}
+
+void svc_add_new_temp_xprt(struct svc_serv *serv, struct svc_xprt *newxpt)
+{
+ spin_lock_bh(&serv->sv_lock);
+ set_bit(XPT_TEMP, &newxpt->xpt_flags);
+ list_add(&newxpt->xpt_list, &serv->sv_tempsocks);
+ serv->sv_tmpcnt++;
+ if (serv->sv_temptimer.function == NULL) {
+ /* setup timer to age temp transports */
+ setup_timer(&serv->sv_temptimer, svc_age_temp_xprts,
+ (unsigned long)serv);
+ mod_timer(&serv->sv_temptimer,
+ jiffies + svc_conn_age_period * HZ);
+ }
+ spin_unlock_bh(&serv->sv_lock);
+ svc_xprt_received(newxpt);
+}
+
+static int svc_handle_xprt(struct svc_rqst *rqstp, struct svc_xprt *xprt)
+{
+ struct svc_serv *serv = rqstp->rq_server;
+ int len = 0;
- len = 0;
if (test_bit(XPT_CLOSE, &xprt->xpt_flags)) {
dprintk("svc_recv: found XPT_CLOSE\n");
svc_delete_xprt(xprt);
/* Leave XPT_BUSY set on the dead xprt: */
- goto out;
+ return 0;
}
if (test_bit(XPT_LISTENER, &xprt->xpt_flags)) {
struct svc_xprt *newxpt;
+ /*
+ * We know this module_get will succeed because the
+ * listener holds a reference too
+ */
+ __module_get(xprt->xpt_class->xcl_owner);
+ svc_check_conn_limits(xprt->xpt_server);
newxpt = xprt->xpt_ops->xpo_accept(xprt);
- if (newxpt) {
- /*
- * We know this module_get will succeed because the
- * listener holds a reference too
- */
- __module_get(newxpt->xpt_class->xcl_owner);
- svc_check_conn_limits(xprt->xpt_server);
- spin_lock_bh(&serv->sv_lock);
- set_bit(XPT_TEMP, &newxpt->xpt_flags);
- list_add(&newxpt->xpt_list, &serv->sv_tempsocks);
- serv->sv_tmpcnt++;
- if (serv->sv_temptimer.function == NULL) {
- /* setup timer to age temp transports */
- setup_timer(&serv->sv_temptimer,
- svc_age_temp_xprts,
- (unsigned long)serv);
- mod_timer(&serv->sv_temptimer,
- jiffies + svc_conn_age_period * HZ);
- }
- spin_unlock_bh(&serv->sv_lock);
- svc_xprt_received(newxpt);
- }
+ if (newxpt)
+ svc_add_new_temp_xprt(serv, newxpt);
} else if (xprt->xpt_ops->xpo_has_wspace(xprt)) {
+ /* XPT_DATA|XPT_DEFERRED case: */
dprintk("svc: server %p, pool %u, transport %p, inuse=%d\n",
- rqstp, pool->sp_id, xprt,
+ rqstp, rqstp->rq_pool->sp_id, xprt,
atomic_read(&xprt->xpt_ref.refcount));
rqstp->rq_deferred = svc_deferred_dequeue(xprt);
if (rqstp->rq_deferred)
@@ -736,10 +732,51 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
rqstp->rq_reserved = serv->sv_max_mesg;
atomic_add(rqstp->rq_reserved, &xprt->xpt_reserved);
}
+ /* clear XPT_BUSY: */
svc_xprt_received(xprt);
+ return len;
+}
+
+/*
+ * Receive the next request on any transport. This code is carefully
+ * organised not to touch any cachelines in the shared svc_serv
+ * structure, only cachelines in the local svc_pool.
+ */
+int svc_recv(struct svc_rqst *rqstp, long timeout)
+{
+ struct svc_xprt *xprt = NULL;
+ struct svc_serv *serv = rqstp->rq_server;
+ int len, err;
+
+ dprintk("svc: server %p waiting for data (to = %ld)\n",
+ rqstp, timeout);
+
+ if (rqstp->rq_xprt)
+ printk(KERN_ERR
+ "svc_recv: service %p, transport not NULL!\n",
+ rqstp);
+ if (waitqueue_active(&rqstp->rq_wait))
+ printk(KERN_ERR
+ "svc_recv: service %p, wait queue active!\n",
+ rqstp);
+
+ err = svc_alloc_arg(rqstp);
+ if (err)
+ return err;
+
+ try_to_freeze();
+ cond_resched();
+ if (signalled() || kthread_should_stop())
+ return -EINTR;
+
+ xprt = svc_get_next_xprt(rqstp, timeout);
+ if (IS_ERR(xprt))
+ return PTR_ERR(xprt);
+
+ len = svc_handle_xprt(rqstp, xprt);
/* No data, incomplete (TCP) read, or accept() */
- if (len == 0 || len == -EAGAIN)
+ if (len <= 0)
goto out;
clear_bit(XPT_OLD, &xprt->xpt_flags);
@@ -917,16 +954,18 @@ void svc_close_xprt(struct svc_xprt *xprt)
}
EXPORT_SYMBOL_GPL(svc_close_xprt);
-static void svc_close_list(struct list_head *xprt_list, struct net *net)
+static void svc_close_list(struct svc_serv *serv, struct list_head *xprt_list, struct net *net)
{
struct svc_xprt *xprt;
+ spin_lock(&serv->sv_lock);
list_for_each_entry(xprt, xprt_list, xpt_list) {
if (xprt->xpt_net != net)
continue;
set_bit(XPT_CLOSE, &xprt->xpt_flags);
set_bit(XPT_BUSY, &xprt->xpt_flags);
}
+ spin_unlock(&serv->sv_lock);
}
static void svc_clear_pools(struct svc_serv *serv, struct net *net)
@@ -949,24 +988,28 @@ static void svc_clear_pools(struct svc_serv *serv, struct net *net)
}
}
-static void svc_clear_list(struct list_head *xprt_list, struct net *net)
+static void svc_clear_list(struct svc_serv *serv, struct list_head *xprt_list, struct net *net)
{
struct svc_xprt *xprt;
struct svc_xprt *tmp;
+ LIST_HEAD(victims);
+ spin_lock(&serv->sv_lock);
list_for_each_entry_safe(xprt, tmp, xprt_list, xpt_list) {
if (xprt->xpt_net != net)
continue;
- svc_delete_xprt(xprt);
+ list_move(&xprt->xpt_list, &victims);
}
- list_for_each_entry(xprt, xprt_list, xpt_list)
- BUG_ON(xprt->xpt_net == net);
+ spin_unlock(&serv->sv_lock);
+
+ list_for_each_entry_safe(xprt, tmp, &victims, xpt_list)
+ svc_delete_xprt(xprt);
}
void svc_close_net(struct svc_serv *serv, struct net *net)
{
- svc_close_list(&serv->sv_tempsocks, net);
- svc_close_list(&serv->sv_permsocks, net);
+ svc_close_list(serv, &serv->sv_tempsocks, net);
+ svc_close_list(serv, &serv->sv_permsocks, net);
svc_clear_pools(serv, net);
/*
@@ -974,8 +1017,8 @@ void svc_close_net(struct svc_serv *serv, struct net *net)
* svc_xprt_enqueue will not add new entries without taking the
* sp_lock and checking XPT_BUSY.
*/
- svc_clear_list(&serv->sv_tempsocks, net);
- svc_clear_list(&serv->sv_permsocks, net);
+ svc_clear_list(serv, &serv->sv_tempsocks, net);
+ svc_clear_list(serv, &serv->sv_permsocks, net);
}
/*
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 998aa8c1807..03827cef1fa 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -59,7 +59,7 @@
static struct svc_sock *svc_setup_socket(struct svc_serv *, struct socket *,
- int *errp, int flags);
+ int flags);
static void svc_udp_data_ready(struct sock *, int);
static int svc_udp_recvfrom(struct svc_rqst *);
static int svc_udp_sendto(struct svc_rqst *);
@@ -305,57 +305,6 @@ static int svc_one_sock_name(struct svc_sock *svsk, char *buf, int remaining)
return len;
}
-/**
- * svc_sock_names - construct a list of listener names in a string
- * @serv: pointer to RPC service
- * @buf: pointer to a buffer to fill in with socket names
- * @buflen: size of the buffer to be filled
- * @toclose: pointer to '\0'-terminated C string containing the name
- * of a listener to be closed
- *
- * Fills in @buf with a '\n'-separated list of names of listener
- * sockets. If @toclose is not NULL, the socket named by @toclose
- * is closed, and is not included in the output list.
- *
- * Returns positive length of the socket name string, or a negative
- * errno value on error.
- */
-int svc_sock_names(struct svc_serv *serv, char *buf, const size_t buflen,
- const char *toclose)
-{
- struct svc_sock *svsk, *closesk = NULL;
- int len = 0;
-
- if (!serv)
- return 0;
-
- spin_lock_bh(&serv->sv_lock);
- list_for_each_entry(svsk, &serv->sv_permsocks, sk_xprt.xpt_list) {
- int onelen = svc_one_sock_name(svsk, buf + len, buflen - len);
- if (onelen < 0) {
- len = onelen;
- break;
- }
- if (toclose && strcmp(toclose, buf + len) == 0) {
- closesk = svsk;
- svc_xprt_get(&closesk->sk_xprt);
- } else
- len += onelen;
- }
- spin_unlock_bh(&serv->sv_lock);
-
- if (closesk) {
- /* Should unregister with portmap, but you cannot
- * unregister just one protocol...
- */
- svc_close_xprt(&closesk->sk_xprt);
- svc_xprt_put(&closesk->sk_xprt);
- } else if (toclose)
- return -ENOENT;
- return len;
-}
-EXPORT_SYMBOL_GPL(svc_sock_names);
-
/*
* Check input queue length
*/
@@ -598,11 +547,9 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
dprintk("svc: recvfrom returned error %d\n", -err);
set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
}
- return -EAGAIN;
+ return 0;
}
len = svc_addr_len(svc_addr(rqstp));
- if (len == 0)
- return -EAFNOSUPPORT;
rqstp->rq_addrlen = len;
if (skb->tstamp.tv64 == 0) {
skb->tstamp = ktime_get_real();
@@ -620,10 +567,7 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
if (!svc_udp_get_dest_address(rqstp, cmh)) {
net_warn_ratelimited("svc: received unknown control message %d/%d; dropping RPC reply datagram\n",
cmh->cmsg_level, cmh->cmsg_type);
-out_free:
- trace_kfree_skb(skb, svc_udp_recvfrom);
- skb_free_datagram_locked(svsk->sk_sk, skb);
- return 0;
+ goto out_free;
}
rqstp->rq_daddrlen = svc_addr_len(svc_daddr(rqstp));
@@ -662,6 +606,10 @@ out_free:
serv->sv_stats->netudpcnt++;
return len;
+out_free:
+ trace_kfree_skb(skb, svc_udp_recvfrom);
+ skb_free_datagram_locked(svsk->sk_sk, skb);
+ return 0;
}
static int
@@ -900,8 +848,9 @@ static struct svc_xprt *svc_tcp_accept(struct svc_xprt *xprt)
*/
newsock->sk->sk_sndtimeo = HZ*30;
- if (!(newsvsk = svc_setup_socket(serv, newsock, &err,
- (SVC_SOCK_ANONYMOUS | SVC_SOCK_TEMPORARY))))
+ newsvsk = svc_setup_socket(serv, newsock,
+ (SVC_SOCK_ANONYMOUS | SVC_SOCK_TEMPORARY));
+ if (IS_ERR(newsvsk))
goto failed;
svc_xprt_set_remote(&newsvsk->sk_xprt, sin, slen);
err = kernel_getsockname(newsock, sin, &slen);
@@ -1174,13 +1123,13 @@ error:
if (len != -EAGAIN)
goto err_other;
dprintk("RPC: TCP recvfrom got EAGAIN\n");
- return -EAGAIN;
+ return 0;
err_other:
printk(KERN_NOTICE "%s: recvfrom returned errno %d\n",
svsk->sk_xprt.xpt_server->sv_name, -len);
set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags);
err_noclose:
- return -EAGAIN; /* record not complete */
+ return 0; /* record not complete */
}
/*
@@ -1383,29 +1332,29 @@ EXPORT_SYMBOL_GPL(svc_sock_update_bufs);
*/
static struct svc_sock *svc_setup_socket(struct svc_serv *serv,
struct socket *sock,
- int *errp, int flags)
+ int flags)
{
struct svc_sock *svsk;
struct sock *inet;
int pmap_register = !(flags & SVC_SOCK_ANONYMOUS);
+ int err = 0;
dprintk("svc: svc_setup_socket %p\n", sock);
- if (!(svsk = kzalloc(sizeof(*svsk), GFP_KERNEL))) {
- *errp = -ENOMEM;
- return NULL;
- }
+ svsk = kzalloc(sizeof(*svsk), GFP_KERNEL);
+ if (!svsk)
+ return ERR_PTR(-ENOMEM);
inet = sock->sk;
/* Register socket with portmapper */
- if (*errp >= 0 && pmap_register)
- *errp = svc_register(serv, sock_net(sock->sk), inet->sk_family,
+ if (pmap_register)
+ err = svc_register(serv, sock_net(sock->sk), inet->sk_family,
inet->sk_protocol,
ntohs(inet_sk(inet)->inet_sport));
- if (*errp < 0) {
+ if (err < 0) {
kfree(svsk);
- return NULL;
+ return ERR_PTR(err);
}
inet->sk_user_data = svsk;
@@ -1450,42 +1399,38 @@ int svc_addsock(struct svc_serv *serv, const int fd, char *name_return,
int err = 0;
struct socket *so = sockfd_lookup(fd, &err);
struct svc_sock *svsk = NULL;
+ struct sockaddr_storage addr;
+ struct sockaddr *sin = (struct sockaddr *)&addr;
+ int salen;
if (!so)
return err;
+ err = -EAFNOSUPPORT;
if ((so->sk->sk_family != PF_INET) && (so->sk->sk_family != PF_INET6))
- err = -EAFNOSUPPORT;
- else if (so->sk->sk_protocol != IPPROTO_TCP &&
+ goto out;
+ err = -EPROTONOSUPPORT;
+ if (so->sk->sk_protocol != IPPROTO_TCP &&
so->sk->sk_protocol != IPPROTO_UDP)
- err = -EPROTONOSUPPORT;
- else if (so->state > SS_UNCONNECTED)
- err = -EISCONN;
- else {
- if (!try_module_get(THIS_MODULE))
- err = -ENOENT;
- else
- svsk = svc_setup_socket(serv, so, &err,
- SVC_SOCK_DEFAULTS);
- if (svsk) {
- struct sockaddr_storage addr;
- struct sockaddr *sin = (struct sockaddr *)&addr;
- int salen;
- if (kernel_getsockname(svsk->sk_sock, sin, &salen) == 0)
- svc_xprt_set_local(&svsk->sk_xprt, sin, salen);
- clear_bit(XPT_TEMP, &svsk->sk_xprt.xpt_flags);
- spin_lock_bh(&serv->sv_lock);
- list_add(&svsk->sk_xprt.xpt_list, &serv->sv_permsocks);
- spin_unlock_bh(&serv->sv_lock);
- svc_xprt_received(&svsk->sk_xprt);
- err = 0;
- } else
- module_put(THIS_MODULE);
- }
- if (err) {
- sockfd_put(so);
- return err;
+ goto out;
+ err = -EISCONN;
+ if (so->state > SS_UNCONNECTED)
+ goto out;
+ err = -ENOENT;
+ if (!try_module_get(THIS_MODULE))
+ goto out;
+ svsk = svc_setup_socket(serv, so, SVC_SOCK_DEFAULTS);
+ if (IS_ERR(svsk)) {
+ module_put(THIS_MODULE);
+ err = PTR_ERR(svsk);
+ goto out;
}
+ if (kernel_getsockname(svsk->sk_sock, sin, &salen) == 0)
+ svc_xprt_set_local(&svsk->sk_xprt, sin, salen);
+ svc_add_new_perm_xprt(serv, &svsk->sk_xprt);
return svc_one_sock_name(svsk, name_return, len);
+out:
+ sockfd_put(so);
+ return err;
}
EXPORT_SYMBOL_GPL(svc_addsock);
@@ -1563,11 +1508,13 @@ static struct svc_xprt *svc_create_socket(struct svc_serv *serv,
goto bummer;
}
- if ((svsk = svc_setup_socket(serv, sock, &error, flags)) != NULL) {
- svc_xprt_set_local(&svsk->sk_xprt, newsin, newlen);
- return (struct svc_xprt *)svsk;
+ svsk = svc_setup_socket(serv, sock, flags);
+ if (IS_ERR(svsk)) {
+ error = PTR_ERR(svsk);
+ goto bummer;
}
-
+ svc_xprt_set_local(&svsk->sk_xprt, newsin, newlen);
+ return (struct svc_xprt *)svsk;
bummer:
dprintk("svc: svc_create_socket error = %d\n", -error);
sock_release(sock);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 73b428bef59..62e4f9bcc38 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -578,10 +578,6 @@ static void handle_connect_req(struct rdma_cm_id *new_cma_id, size_t client_ird)
list_add_tail(&newxprt->sc_accept_q, &listen_xprt->sc_accept_q);
spin_unlock_bh(&listen_xprt->sc_lock);
- /*
- * Can't use svc_xprt_received here because we are not on a
- * rqstp thread
- */
set_bit(XPT_CONN, &listen_xprt->sc_xprt.xpt_flags);
svc_xprt_enqueue(&listen_xprt->sc_xprt);
}