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authorEric Paris <eparis@redhat.com>2006-09-25 23:32:02 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 08:48:53 -0700
commitbc7e982b84aceef0a040c88ff659eb5c83818f72 (patch)
tree0e351e00c5fa90cd5b6a9b9f710e95ecb953b1f2 /security
parent23970741720360de9dd0a4e87fbeb1d5927aa474 (diff)
downloadleg-kernel-bc7e982b84aceef0a040c88ff659eb5c83818f72.tar.gz
[PATCH] SELinux: convert sbsec semaphore to a mutex
This patch converts the semaphore in the superblock security struct to a mutex. No locking changes or other code changes are done. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'security')
-rw-r--r--security/selinux/hooks.c7
-rw-r--r--security/selinux/include/objsec.h2
2 files changed, 4 insertions, 5 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 63ad57ab44fc..55cec4d6f117 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -51,7 +51,6 @@
#include <net/ip.h> /* for sysctl_local_port_range[] */
#include <net/tcp.h> /* struct or_callable used in sock_rcv_skb */
#include <asm/uaccess.h>
-#include <asm/semaphore.h>
#include <asm/ioctls.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
@@ -243,7 +242,7 @@ static int superblock_alloc_security(struct super_block *sb)
if (!sbsec)
return -ENOMEM;
- init_MUTEX(&sbsec->sem);
+ mutex_init(&sbsec->lock);
INIT_LIST_HEAD(&sbsec->list);
INIT_LIST_HEAD(&sbsec->isec_head);
spin_lock_init(&sbsec->isec_lock);
@@ -595,7 +594,7 @@ static int superblock_doinit(struct super_block *sb, void *data)
struct inode *inode = root->d_inode;
int rc = 0;
- down(&sbsec->sem);
+ mutex_lock(&sbsec->lock);
if (sbsec->initialized)
goto out;
@@ -690,7 +689,7 @@ next_inode:
}
spin_unlock(&sbsec->isec_lock);
out:
- up(&sbsec->sem);
+ mutex_unlock(&sbsec->lock);
return rc;
}
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index 7d5a0289878b..ef2267fea8bd 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -63,7 +63,7 @@ struct superblock_security_struct {
unsigned int behavior; /* labeling behavior */
unsigned char initialized; /* initialization flag */
unsigned char proc; /* proc fs */
- struct semaphore sem;
+ struct mutex lock;
struct list_head isec_head;
spinlock_t isec_lock;
};