From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 22 Mar 2006 08:09:14 +0000 (-0800)
Subject: [PATCH] sem2mutex: security/
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bb0030797f55c9996ea1cebd16b65750ceb7e4fd;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] sem2mutex: security/

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: Stephen Smalley <sds@epoch.ncsc.mil>
Cc: James Morris <jmorris@namei.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 74cb79eb917e..f6940618e345 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -16,11 +16,12 @@
 #include <linux/keyctl.h>
 #include <linux/fs.h>
 #include <linux/err.h>
+#include <linux/mutex.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
 /* session keyring create vs join semaphore */
-static DECLARE_MUTEX(key_session_sem);
+static DEFINE_MUTEX(key_session_mutex);
 
 /* the root user's tracking struct */
 struct key_user root_key_user = {
@@ -711,7 +712,7 @@ long join_session_keyring(const char *name)
 	}
 
 	/* allow the user to join or create a named keyring */
-	down(&key_session_sem);
+	mutex_lock(&key_session_mutex);
 
 	/* look for an existing keyring of this name */
 	keyring = find_keyring_by_name(name, 0);
@@ -737,7 +738,7 @@ long join_session_keyring(const char *name)
 	key_put(keyring);
 
 error2:
-	up(&key_session_sem);
+	mutex_unlock(&key_session_mutex);
 error:
 	return ret;
 
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index b5fa02d17b1e..65efa8f76331 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/fs.h>
+#include <linux/mutex.h>
 #include <linux/init.h>
 #include <linux/string.h>
 #include <linux/security.h>
@@ -44,7 +45,7 @@ static int __init checkreqprot_setup(char *str)
 __setup("checkreqprot=", checkreqprot_setup);
 
 
-static DECLARE_MUTEX(sel_sem);
+static DEFINE_MUTEX(sel_mutex);
 
 /* global data for booleans */
 static struct dentry *bool_dir = NULL;
@@ -230,7 +231,7 @@ static ssize_t sel_write_load(struct file * file, const char __user * buf,
 	ssize_t length;
 	void *data = NULL;
 
-	down(&sel_sem);
+	mutex_lock(&sel_mutex);
 
 	length = task_has_security(current, SECURITY__LOAD_POLICY);
 	if (length)
@@ -262,7 +263,7 @@ static ssize_t sel_write_load(struct file * file, const char __user * buf,
 	else
 		length = count;
 out:
-	up(&sel_sem);
+	mutex_unlock(&sel_mutex);
 	vfree(data);
 	return length;
 }
@@ -714,7 +715,7 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf,
 	int cur_enforcing;
 	struct inode *inode;
 
-	down(&sel_sem);
+	mutex_lock(&sel_mutex);
 
 	ret = -EFAULT;
 
@@ -759,7 +760,7 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf,
 	*ppos = end;
 	ret = count;
 out:
-	up(&sel_sem);
+	mutex_unlock(&sel_mutex);
 	if (page)
 		free_page((unsigned long)page);
 	return ret;
@@ -773,7 +774,7 @@ static ssize_t sel_write_bool(struct file *filep, const char __user *buf,
 	int new_value;
 	struct inode *inode;
 
-	down(&sel_sem);
+	mutex_lock(&sel_mutex);
 
 	length = task_has_security(current, SECURITY__SETBOOL);
 	if (length)
@@ -812,7 +813,7 @@ static ssize_t sel_write_bool(struct file *filep, const char __user *buf,
 	length = count;
 
 out:
-	up(&sel_sem);
+	mutex_unlock(&sel_mutex);
 	if (page)
 		free_page((unsigned long) page);
 	return length;
@@ -831,7 +832,7 @@ static ssize_t sel_commit_bools_write(struct file *filep,
 	ssize_t length = -EFAULT;
 	int new_value;
 
-	down(&sel_sem);
+	mutex_lock(&sel_mutex);
 
 	length = task_has_security(current, SECURITY__SETBOOL);
 	if (length)
@@ -869,7 +870,7 @@ static ssize_t sel_commit_bools_write(struct file *filep,
 	length = count;
 
 out:
-	up(&sel_sem);
+	mutex_unlock(&sel_mutex);
 	if (page)
 		free_page((unsigned long) page);
 	return length;
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 8a764928ff4b..63e0b7f29cb5 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -27,7 +27,8 @@
 #include <linux/in.h>
 #include <linux/sched.h>
 #include <linux/audit.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
 #include "flask.h"
 #include "avc.h"
 #include "avc_ss.h"
@@ -48,9 +49,9 @@ static DEFINE_RWLOCK(policy_rwlock);
 #define POLICY_RDUNLOCK read_unlock(&policy_rwlock)
 #define POLICY_WRUNLOCK write_unlock_irq(&policy_rwlock)
 
-static DECLARE_MUTEX(load_sem);
-#define LOAD_LOCK down(&load_sem)
-#define LOAD_UNLOCK up(&load_sem)
+static DEFINE_MUTEX(load_mutex);
+#define LOAD_LOCK mutex_lock(&load_mutex)
+#define LOAD_UNLOCK mutex_unlock(&load_mutex)
 
 static struct sidtab sidtab;
 struct policydb policydb;