Re: [PATCH bpf-next v2 1/3] libbpf: use LFS (_FILE_OFFSET_BITS) instead of direct mmap2 syscall

[Yonghong Song]

On 8/15/19 5:13 AM, Ivan Khoronzhuk wrote:
> Drop __NR_mmap2 fork in flavor of LFS, that is _FILE_OFFSET_BITS=64
> (glibc & bionic) / LARGEFILE64_SOURCE (for musl) decision. It allows
> mmap() to use 64bit offset that is passed to mmap2 syscall. As result
> pgoff is not truncated and no need to use direct access to mmap2 for
> 32 bits systems.
> 
> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>

Acked-by: Yonghong Song <yhs@xxxxxx>