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[NET] sem2mutex: net/

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Semaphore to mutex conversion.

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

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arjan van de Ven
2006-03-20 22:33:17 -08:00
committed by David S. Miller
parent d4ccd08cdf
commit 4a3e2f711a
19 changed files with 118 additions and 101 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
net/netfilter/nf_sockopt.c
View File

@@ -4,6 +4,7 @@
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/netfilter.h>
#include <linux/mutex.h>
#include <net/sock.h>
#include "nf_internals.h"
@@ -11,7 +12,7 @@
/* Sockopts only registered and called from user context, so
net locking would be overkill. Also, [gs]etsockopt calls may
sleep. */
static DECLARE_MUTEX(nf_sockopt_mutex);
static DEFINE_MUTEX(nf_sockopt_mutex);
static LIST_HEAD(nf_sockopts);
/* Do exclusive ranges overlap? */
@@ -26,7 +27,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
struct list_head *i;
int ret = 0;
if (down_interruptible(&nf_sockopt_mutex) != 0)
if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)
return -EINTR;
list_for_each(i, &nf_sockopts) {
@@ -48,7 +49,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
list_add(&reg->list, &nf_sockopts);
out:
up(&nf_sockopt_mutex);
mutex_unlock(&nf_sockopt_mutex);
return ret;
}
EXPORT_SYMBOL(nf_register_sockopt);
@@ -57,18 +58,18 @@ void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
{
/* No point being interruptible: we're probably in cleanup_module() */
restart:
down(&nf_sockopt_mutex);
mutex_lock(&nf_sockopt_mutex);
if (reg->use != 0) {
/* To be woken by nf_sockopt call... */
/* FIXME: Stuart Young's name appears gratuitously. */
set_current_state(TASK_UNINTERRUPTIBLE);
reg->cleanup_task = current;
up(&nf_sockopt_mutex);
mutex_unlock(&nf_sockopt_mutex);
schedule();
goto restart;
}
list_del(&reg->list);
up(&nf_sockopt_mutex);
mutex_unlock(&nf_sockopt_mutex);
}
EXPORT_SYMBOL(nf_unregister_sockopt);
@@ -80,7 +81,7 @@ static int nf_sockopt(struct sock *sk, int pf, int val,
struct nf_sockopt_ops *ops;
int ret;
if (down_interruptible(&nf_sockopt_mutex) != 0)
if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)
return -EINTR;
list_for_each(i, &nf_sockopts) {
@@ -90,7 +91,7 @@ static int nf_sockopt(struct sock *sk, int pf, int val,
if (val >= ops->get_optmin
&& val < ops->get_optmax) {
ops->use++;
up(&nf_sockopt_mutex);
mutex_unlock(&nf_sockopt_mutex);
ret = ops->get(sk, val, opt, len);
goto out;
}
@@ -98,22 +99,22 @@ static int nf_sockopt(struct sock *sk, int pf, int val,
if (val >= ops->set_optmin
&& val < ops->set_optmax) {
ops->use++;
up(&nf_sockopt_mutex);
mutex_unlock(&nf_sockopt_mutex);
ret = ops->set(sk, val, opt, *len);
goto out;
}
}
}
}
up(&nf_sockopt_mutex);
mutex_unlock(&nf_sockopt_mutex);
return -ENOPROTOOPT;
out:
down(&nf_sockopt_mutex);
mutex_lock(&nf_sockopt_mutex);
ops->use--;
if (ops->cleanup_task)
wake_up_process(ops->cleanup_task);
up(&nf_sockopt_mutex);
mutex_unlock(&nf_sockopt_mutex);
return ret;
}