asmlinkage long
sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long pgoff)
{
/* bug(?): 8Kb pages here */
return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
}
/*
* mmap2() is like mmap() except that the offset is expressed in units
* of PAGE_SIZE (instead of bytes). This allows to mmap2() (pieces
* of) files that are larger than the address space of the CPU.
*/
asmlinkage unsigned long
sys_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, long pgoff)
{
addr = sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
if (!IS_ERR((void *) addr))
force_successful_syscall_return();
return addr;
}
asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
{
/*
* This is wrong for sun3 - there PAGE_SIZE is 8Kb,
* so we need to shift the argument down by 1; m68k mmap64(3)
* (in libc) expects the last argument of mmap2 in 4Kb units.
*/
return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
}
asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
{
/* The shift for mmap2 is constant, regardless of PAGE_SIZE setting. */
if (pgoff & ((1 << (PAGE_SHIFT - 12)) - 1))
return -EINVAL;
pgoff >>= PAGE_SHIFT - 12;
return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
}
asmlinkage long
sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long pgoff)
{
return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
}
