Re: read() MAX_IO_SIZE bytes, more than SSIZE_MAX?

Joachim Schmitz <jojo <at> schmitz-digital.de> writes:

<snip>

and as a (rather strange) 
consequence mmap() (from compat/mmap.c) fails with EACCESS (why 

EACCESS?), 

because xpread() returns something > 0.

Seems mmap() should either set errno to EINVAL or not set it at all an 
just 'forward' whatever xpread() has set.

As per http://man7.org/linux/man-pages/man2/mmap.2.html mmap() sets EINVAL 
if (amongst other things) it doesn't like the value of len, exactly the 
case here.

bye, Jojo