From 14cc3e2b633bb64063698980974df4535368e98f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Sun, 26 Mar 2006 01:37:14 -0800
Subject: [PATCH] sem2mutex: misc static one-file mutexes

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jens Axboe <axboe@suse.de>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Cc: Greg KH <greg@kroah.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 net/ipv4/ipvs/ip_vs_ctl.c          | 11 ++++++-----
 net/ipv4/netfilter/ipt_hashlimit.c |  9 +++++----
 net/netlink/genetlink.c            |  9 +++++----
 3 files changed, 16 insertions(+), 13 deletions(-)

(limited to 'net')

diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
index 7f0288b25fa..f28ec688216 100644
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ b/net/ipv4/ipvs/ip_vs_ctl.c
@@ -34,6 +34,7 @@
 
 #include <linux/netfilter.h>
 #include <linux/netfilter_ipv4.h>
+#include <linux/mutex.h>
 
 #include <net/ip.h>
 #include <net/route.h>
@@ -44,7 +45,7 @@
 #include <net/ip_vs.h>
 
 /* semaphore for IPVS sockopts. And, [gs]etsockopt may sleep. */
-static DECLARE_MUTEX(__ip_vs_mutex);
+static DEFINE_MUTEX(__ip_vs_mutex);
 
 /* lock for service table */
 static DEFINE_RWLOCK(__ip_vs_svc_lock);
@@ -1950,7 +1951,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
 	/* increase the module use count */
 	ip_vs_use_count_inc();
 
-	if (down_interruptible(&__ip_vs_mutex)) {
+	if (mutex_lock_interruptible(&__ip_vs_mutex)) {
 		ret = -ERESTARTSYS;
 		goto out_dec;
 	}
@@ -2041,7 +2042,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
 		ip_vs_service_put(svc);
 
   out_unlock:
-	up(&__ip_vs_mutex);
+	mutex_unlock(&__ip_vs_mutex);
   out_dec:
 	/* decrease the module use count */
 	ip_vs_use_count_dec();
@@ -2211,7 +2212,7 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 	if (copy_from_user(arg, user, get_arglen[GET_CMDID(cmd)]) != 0)
 		return -EFAULT;
 
-	if (down_interruptible(&__ip_vs_mutex))
+	if (mutex_lock_interruptible(&__ip_vs_mutex))
 		return -ERESTARTSYS;
 
 	switch (cmd) {
@@ -2330,7 +2331,7 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 	}
 
   out:
-	up(&__ip_vs_mutex);
+	mutex_unlock(&__ip_vs_mutex);
 	return ret;
 }
 
diff --git a/net/ipv4/netfilter/ipt_hashlimit.c b/net/ipv4/netfilter/ipt_hashlimit.c
index dc1521c5aa8..ba5e23505e8 100644
--- a/net/ipv4/netfilter/ipt_hashlimit.c
+++ b/net/ipv4/netfilter/ipt_hashlimit.c
@@ -40,6 +40,7 @@
 
 /* FIXME: this is just for IP_NF_ASSERRT */
 #include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/mutex.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
@@ -92,7 +93,7 @@ struct ipt_hashlimit_htable {
 };
 
 static DEFINE_SPINLOCK(hashlimit_lock);	/* protects htables list */
-static DECLARE_MUTEX(hlimit_mutex);	/* additional checkentry protection */
+static DEFINE_MUTEX(hlimit_mutex);	/* additional checkentry protection */
 static HLIST_HEAD(hashlimit_htables);
 static kmem_cache_t *hashlimit_cachep __read_mostly;
 
@@ -542,13 +543,13 @@ hashlimit_checkentry(const char *tablename,
 	 * call vmalloc, and that can sleep.  And we cannot just re-search
 	 * the list of htable's in htable_create(), since then we would
 	 * create duplicate proc files. -HW */
-	down(&hlimit_mutex);
+	mutex_lock(&hlimit_mutex);
 	r->hinfo = htable_find_get(r->name);
 	if (!r->hinfo && (htable_create(r) != 0)) {
-		up(&hlimit_mutex);
+		mutex_unlock(&hlimit_mutex);
 		return 0;
 	}
-	up(&hlimit_mutex);
+	mutex_unlock(&hlimit_mutex);
 
 	/* Ugly hack: For SMP, we only want to use one set */
 	r->u.master = r;
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 43e72419c86..f329b72578f 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -13,26 +13,27 @@
 #include <linux/socket.h>
 #include <linux/string.h>
 #include <linux/skbuff.h>
+#include <linux/mutex.h>
 #include <net/sock.h>
 #include <net/genetlink.h>
 
 struct sock *genl_sock = NULL;
 
-static DECLARE_MUTEX(genl_sem); /* serialization of message processing */
+static DEFINE_MUTEX(genl_mutex); /* serialization of message processing */
 
 static void genl_lock(void)
 {
-	down(&genl_sem);
+	mutex_lock(&genl_mutex);
 }
 
 static int genl_trylock(void)
 {
-	return down_trylock(&genl_sem);
+	return !mutex_trylock(&genl_mutex);
 }
 
 static void genl_unlock(void)
 {
-	up(&genl_sem);
+	mutex_unlock(&genl_mutex);
 
 	if (genl_sock && genl_sock->sk_receive_queue.qlen)
 		genl_sock->sk_data_ready(genl_sock, 0);
-- 
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