Commit 853b3da1 authored by Al Viro's avatar Al Viro
Browse files

sanitize do_pipe_flags() callers in arch 



* hpux_pipe() - no need to take BKL
* sys32_pipe() in arch/x86/ia32 and xtensa_pipe() in arch/xtensa -
	no need at all, since both functions are open-coded sys_pipe()

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 8bea8672

arch/parisc/hpux/sys_hpux.c

+1 −6
Original line number Diff line number Diff line
@@ -445,12 +445,7 @@ int hpux_getdomainname(char __user *name, int len) 


int hpux_pipe(int *kstack_fildes)

{

	int error;



	lock_kernel();

	error = do_pipe_flags(kstack_fildes, 0);

	unlock_kernel();

	return error;

	return do_pipe_flags(kstack_fildes, 0);

}



/* lies - says it works, but it really didn't lock anything */

arch/x86/include/asm/sys_ia32.h

+0 −1
Original line number Diff line number Diff line
@@ -30,7 +30,6 @@ struct mmap_arg_struct; 
asmlinkage long sys32_mmap(struct mmap_arg_struct __user *);

asmlinkage long sys32_mprotect(unsigned long, size_t, unsigned long);



asmlinkage long sys32_pipe(int __user *);

struct sigaction32;

struct old_sigaction32;

asmlinkage long sys32_rt_sigaction(int, struct sigaction32 __user *,

arch/xtensa/include/asm/syscall.h

+0 −1
Original line number Diff line number Diff line
@@ -12,7 +12,6 @@ struct pt_regs; 
struct sigaction;

asmlinkage long xtensa_execve(char*, char**, char**, struct pt_regs*);

asmlinkage long xtensa_clone(unsigned long, unsigned long, struct pt_regs*);

asmlinkage long xtensa_pipe(int __user *);

asmlinkage long xtensa_ptrace(long, long, long, long);

asmlinkage long xtensa_sigreturn(struct pt_regs*);

asmlinkage long xtensa_rt_sigreturn(struct pt_regs*);

arch/xtensa/include/asm/unistd.h

+1 −1
Original line number Diff line number Diff line
@@ -94,7 +94,7 @@ __SYSCALL( 35, sys_readlink, 3) 
#define __NR_mknod 				 36

__SYSCALL( 36, sys_mknod, 3)

#define __NR_pipe 				 37

__SYSCALL( 37, xtensa_pipe, 1)

__SYSCALL( 37, sys_pipe, 1)

#define __NR_unlink 				 38

__SYSCALL( 38, sys_unlink, 1)

#define __NR_rmdir 				 39

arch/xtensa/kernel/syscall.c

+0 −18
Original line number Diff line number Diff line
@@ -39,24 +39,6 @@ syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= { 
#include <asm/unistd.h>

};



/*

 * xtensa_pipe() is the normal C calling standard for creating a pipe. It's not

 * the way unix traditional does this, though.

 */



asmlinkage long xtensa_pipe(int __user *userfds)

{

	int fd[2];

	int error;



	error = do_pipe_flags(fd, 0);

	if (!error) {

		if (copy_to_user(userfds, fd, 2 * sizeof(int)))

			error = -EFAULT;

	}

	return error;

}



asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)

{

	unsigned long ret;