[lkml]   [2007]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: O_NONBLOCK is broken

On Aug 14 2007 13:33, Alan Cox wrote:
>> b) Make recv(fd, buf, size, flags) and send(fd, buf, size, flags);
>> work with non-socket fds too, for flags==0 or flags==MSG_DONTWAIT.
>> (it's ok to fail with "socket op on non-socket fd" for other values
>> of flags)
>I think that makes a lot of sense, and to be honest other MSG_ flags make
>useful sense and have meaningful semantics that might be helpful
>elsewhere if ever coded that way.
>If you want to do this the first job is going to be to sort out the way
>non-block is propogated to device driver read/write handlers. At the
>moment they all check filp->f_flags

And a side effect, kernel code (kthreads) rarely allocate a file

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-08-14 19:31    [W:0.055 / U:1.964 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site