cvs commit: src/sys/nfsclient nfs_bio.c nfs_vfsops.c nfsargs.h nfsmount.h src/sys/sys buf.h bufobj.h src/sys/kern vfs_bio.c

Brian Fundakowski Feldman green at
Sat Jun 11 06:49:57 GMT 2005

On Fri, Jun 10, 2005 at 08:49:30PM -0700, Alfred Perlstein wrote:
> Returning EAGAIN from a disk IO seems bogus, are you sure it makes
> sense to do that when IO_NDELAY is set?  Shouldn't it just be ignored
> like other FSes do?

Well, it's not disk IO, it's network IO.  I figure if you set that
flag you should expect commensurate error return values.  This is
conceivably a useful behavior, and POSIX does not forbid it, so I just
made the judgement call to not deny the functionality.

Would you actually be surprised to get EAGAIN if you requested
non-blocking access to a file stream, ignoring the fact that it just
happens to not have been done already for other S_ISREG file streams?

Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green at                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\

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