X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=fs%2Ffcntl.c;h=bd215cc791da53eb9713063600a56ab3edb1c92a;hb=05bf9e839d9de4e8a094274a0a2fd07beb47eaf1;hp=549daf8005fb5da252252d7e5bf0e73185250169;hpb=218d11a8b071b23b76c484fd5f72a4fe3306801e;p=safe%2Fjmp%2Flinux-2.6

diff --git a/fs/fcntl.c b/fs/fcntl.c
index 549daf8..bd215cc 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -50,7 +50,7 @@ static int get_close_on_exec(unsigned int fd)
 	return res;
 }
 
-asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags)
+SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
 {
 	int err = -EBADF;
 	struct file * file, *tofree;
@@ -113,7 +113,7 @@ out_unlock:
 	return err;
 }
 
-asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd)
+SYSCALL_DEFINE2(dup2, unsigned int, oldfd, unsigned int, newfd)
 {
 	if (unlikely(newfd == oldfd)) { /* corner case */
 		struct files_struct *files = current->files;
@@ -126,7 +126,7 @@ asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd)
 	return sys_dup3(oldfd, newfd, 0);
 }
 
-asmlinkage long sys_dup(unsigned int fildes)
+SYSCALL_DEFINE1(dup, unsigned int, fildes)
 {
 	int ret = -EBADF;
 	struct file *file = fget(fildes);
@@ -212,13 +212,14 @@ static void f_modown(struct file *filp, struct pid *pid, enum pid_type type,
 int __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
 		int force)
 {
+	const struct cred *cred = current_cred();
 	int err;
 	
 	err = security_file_set_fowner(filp);
 	if (err)
 		return err;
 
-	f_modown(filp, pid, type, current->uid, current->euid, force);
+	f_modown(filp, pid, type, cred->uid, cred->euid, force);
 	return 0;
 }
 EXPORT_SYMBOL(__f_setown);
@@ -334,7 +335,7 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg,
 	return err;
 }
 
-asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg)
+SYSCALL_DEFINE3(fcntl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
 {	
 	struct file *filp;
 	long err = -EBADF;
@@ -357,7 +358,8 @@ out:
 }
 
 #if BITS_PER_LONG == 32
-asmlinkage long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg)
+SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
+		unsigned long, arg)
 {	
 	struct file * filp;
 	long err;
@@ -407,10 +409,17 @@ static const long band_table[NSIGPOLL] = {
 static inline int sigio_perm(struct task_struct *p,
                              struct fown_struct *fown, int sig)
 {
-	return (((fown->euid == 0) ||
-		 (fown->euid == p->suid) || (fown->euid == p->uid) ||
-		 (fown->uid == p->suid) || (fown->uid == p->uid)) &&
-		!security_file_send_sigiotask(p, fown, sig));
+	const struct cred *cred;
+	int ret;
+
+	rcu_read_lock();
+	cred = __task_cred(p);
+	ret = ((fown->euid == 0 ||
+		fown->euid == cred->suid || fown->euid == cred->uid ||
+		fown->uid  == cred->suid || fown->uid  == cred->uid) &&
+	       !security_file_send_sigiotask(p, fown, sig));
+	rcu_read_unlock();
+	return ret;
 }
 
 static void send_sigio_to_task(struct task_struct *p,