aboutsummaryrefslogtreecommitdiff
path: root/fs/lockd
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 09:55:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 09:55:25 -0700
commit4390110fef9e5c64e10c6ca19d586932242c9a8a (patch)
treef2f26fe291c8b4e424b97ac57370b33e0c006568 /fs/lockd
parenta4dd8dce14014665862ce7911b38cb2c69e366dd (diff)
parent42d7ba3d6d56a6cbc773284896108b1e2ebcee81 (diff)
Merge branch 'for-2.6.37' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.37' of git://linux-nfs.org/~bfields/linux: (99 commits) svcrpc: svc_tcp_sendto XPT_DEAD check is redundant svcrpc: no need for XPT_DEAD check in svc_xprt_enqueue svcrpc: assume svc_delete_xprt() called only once svcrpc: never clear XPT_BUSY on dead xprt nfsd4: fix connection allocation in sequence() nfsd4: only require krb5 principal for NFSv4.0 callbacks nfsd4: move minorversion to client nfsd4: delay session removal till free_client nfsd4: separate callback change and callback probe nfsd4: callback program number is per-session nfsd4: track backchannel connections nfsd4: confirm only on succesful create_session nfsd4: make backchannel sequence number per-session nfsd4: use client pointer to backchannel session nfsd4: move callback setup into session init code nfsd4: don't cache seq_misordered replies SUNRPC: Properly initialize sock_xprt.srcaddr in all cases SUNRPC: Use conventional switch statement when reclassifying sockets sunrpc/xprtrdma: clean up workqueue usage sunrpc: Turn list_for_each-s into the ..._entry-s ... Fix up trivial conflicts (two different deprecation notices added in separate branches) in Documentation/feature-removal-schedule.txt
Diffstat (limited to 'fs/lockd')
-rw-r--r--fs/lockd/host.c1
-rw-r--r--fs/lockd/mon.c1
-rw-r--r--fs/lockd/svc.c2
-rw-r--r--fs/lockd/svc4proc.c2
-rw-r--r--fs/lockd/svclock.c31
-rw-r--r--fs/lockd/svcproc.c2
6 files changed, 24 insertions, 15 deletions
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index bb464d12104..25e21e4023b 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -353,6 +353,7 @@ nlm_bind_host(struct nlm_host *host)
.to_retries = 5U,
};
struct rpc_create_args args = {
+ .net = &init_net,
.protocol = host->h_proto,
.address = nlm_addr(host),
.addrsize = host->h_addrlen,
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index e3015464fba..e0c91894964 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -69,6 +69,7 @@ static struct rpc_clnt *nsm_create(void)
.sin_addr.s_addr = htonl(INADDR_LOOPBACK),
};
struct rpc_create_args args = {
+ .net = &init_net,
.protocol = XPRT_TRANSPORT_UDP,
.address = (struct sockaddr *)&sin,
.addrsize = sizeof(sin),
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index f1bacf1a039..b13aabc1229 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -206,7 +206,7 @@ static int create_lockd_listener(struct svc_serv *serv, const char *name,
xprt = svc_find_xprt(serv, name, family, 0);
if (xprt == NULL)
- return svc_create_xprt(serv, name, family, port,
+ return svc_create_xprt(serv, name, &init_net, family, port,
SVC_SOCK_DEFAULTS);
svc_xprt_put(xprt);
return 0;
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 031c6569a13..a336e832475 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -230,9 +230,7 @@ static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
static void nlm4svc_callback_release(void *data)
{
- lock_kernel();
nlm_release_call(data);
- unlock_kernel();
}
static const struct rpc_call_ops nlm4svc_callback_ops = {
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 84055d31bfc..6f1ef000975 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -52,12 +52,13 @@ static const struct rpc_call_ops nlmsvc_grant_ops;
* The list of blocked locks to retry
*/
static LIST_HEAD(nlm_blocked);
+static DEFINE_SPINLOCK(nlm_blocked_lock);
/*
* Insert a blocked lock into the global list
*/
static void
-nlmsvc_insert_block(struct nlm_block *block, unsigned long when)
+nlmsvc_insert_block_locked(struct nlm_block *block, unsigned long when)
{
struct nlm_block *b;
struct list_head *pos;
@@ -87,6 +88,13 @@ nlmsvc_insert_block(struct nlm_block *block, unsigned long when)
block->b_when = when;
}
+static void nlmsvc_insert_block(struct nlm_block *block, unsigned long when)
+{
+ spin_lock(&nlm_blocked_lock);
+ nlmsvc_insert_block_locked(block, when);
+ spin_unlock(&nlm_blocked_lock);
+}
+
/*
* Remove a block from the global list
*/
@@ -94,7 +102,9 @@ static inline void
nlmsvc_remove_block(struct nlm_block *block)
{
if (!list_empty(&block->b_list)) {
+ spin_lock(&nlm_blocked_lock);
list_del_init(&block->b_list);
+ spin_unlock(&nlm_blocked_lock);
nlmsvc_release_block(block);
}
}
@@ -651,7 +661,7 @@ static int nlmsvc_grant_deferred(struct file_lock *fl, struct file_lock *conf,
struct nlm_block *block;
int rc = -ENOENT;
- lock_kernel();
+ spin_lock(&nlm_blocked_lock);
list_for_each_entry(block, &nlm_blocked, b_list) {
if (nlm_compare_locks(&block->b_call->a_args.lock.fl, fl)) {
dprintk("lockd: nlmsvc_notify_blocked block %p flags %d\n",
@@ -665,13 +675,13 @@ static int nlmsvc_grant_deferred(struct file_lock *fl, struct file_lock *conf,
} else if (result == 0)
block->b_granted = 1;
- nlmsvc_insert_block(block, 0);
+ nlmsvc_insert_block_locked(block, 0);
svc_wake_up(block->b_daemon);
rc = 0;
break;
}
}
- unlock_kernel();
+ spin_unlock(&nlm_blocked_lock);
if (rc == -ENOENT)
printk(KERN_WARNING "lockd: grant for unknown block\n");
return rc;
@@ -803,7 +813,7 @@ static void nlmsvc_grant_callback(struct rpc_task *task, void *data)
dprintk("lockd: GRANT_MSG RPC callback\n");
- lock_kernel();
+ spin_lock(&nlm_blocked_lock);
/* if the block is not on a list at this point then it has
* been invalidated. Don't try to requeue it.
*
@@ -825,19 +835,20 @@ static void nlmsvc_grant_callback(struct rpc_task *task, void *data)
/* Call was successful, now wait for client callback */
timeout = 60 * HZ;
}
- nlmsvc_insert_block(block, timeout);
+ nlmsvc_insert_block_locked(block, timeout);
svc_wake_up(block->b_daemon);
out:
- unlock_kernel();
+ spin_unlock(&nlm_blocked_lock);
}
+/*
+ * FIXME: nlmsvc_release_block() grabs a mutex. This is not allowed for an
+ * .rpc_release rpc_call_op
+ */
static void nlmsvc_grant_release(void *data)
{
struct nlm_rqst *call = data;
-
- lock_kernel();
nlmsvc_release_block(call->a_block);
- unlock_kernel();
}
static const struct rpc_call_ops nlmsvc_grant_ops = {
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 0f2ab741ae7..c3069f38d60 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -260,9 +260,7 @@ static void nlmsvc_callback_exit(struct rpc_task *task, void *data)
static void nlmsvc_callback_release(void *data)
{
- lock_kernel();
nlm_release_call(data);
- unlock_kernel();
}
static const struct rpc_call_ops nlmsvc_callback_ops = {