From f8b7256096a20436f6d0926747e3ac3d64c81d24 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 30 Nov 2009 17:37:04 -0500 Subject: Unify sys_mmap* New helper - sys_mmap_pgoff(); switch syscalls to using it. Acked-by: David S. Miller Signed-off-by: Al Viro --- arch/parisc/kernel/sys_parisc.c | 30 ++++-------------------------- 1 file changed, 4 insertions(+), 26 deletions(-) (limited to 'arch/parisc') diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 71b31957c8f..9147391afb0 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -110,37 +110,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, return addr; } -static unsigned long do_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, unsigned long fd, - unsigned long pgoff) -{ - struct file * file = NULL; - unsigned long error = -EBADF; - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file != NULL) - fput(file); -out: - return error; -} - asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { /* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE we have. */ - return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT - 12)); + return sys_mmap_pgoff(addr, len, prot, flags, fd, + pgoff >> (PAGE_SHIFT - 12)); } asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, @@ -148,7 +125,8 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, unsigned long offset) { if (!(offset & ~PAGE_MASK)) { - return do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); + return sys_mmap_pgoff(addr, len, prot, flags, fd, + offset >> PAGE_SHIFT); } else { return -EINVAL; } -- cgit v1.2.2