| Message ID | 4.2.0.58.J.20090421052216.0362b680@router.itonet.co.jp (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c index 58dfc02..15a56be 100644 --- a/arch/sh/kernel/sys_sh.c +++ b/arch/sh/kernel/sys_sh.c @@ -63,7 +63,9 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { - return do_mmap2(addr, len, prot, flags, fd, 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)); } /*
Hi, Last argument of mmap2 system call is always (offset >> 12) in glibc regardless of the PAGE_SIZE, but do_mmap_pgoff function requires 'pgoff' parameter which is shifted by real PAGE_SHIFT. So, we should adjust this argument if page size is not equal to 4k byte. Signed-off-by: Toshinobu Sugioka <sugioka@itonet.co.jp> SUGIOKA Toshinobu -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html