Date: Wed, 26 Mar 2003 14:50:19 -0800 From: Kris Kennaway <kris@obsecurity.org> To: Robert Watson <rwatson@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/nfsclient nfs_lock.c Message-ID: <20030326225019.GA11327@rot13.obsecurity.org> In-Reply-To: <200303261921.h2QJLYhs039438@repoman.freebsd.org> References: <200303261921.h2QJLYhs039438@repoman.freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
--OgqxwSJOaUobr8KG Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 26, 2003 at 11:21:34AM -0800, Robert Watson wrote: > rwatson 2003/03/26 11:21:34 PST >=20 > FreeBSD src repository >=20 > Modified files: > sys/nfsclient nfs_lock.c=20 > Log: > Add O_NONBLOCK to the vn_open_cred() flags for NFS client locking when > opening the POSIX fifo; convert ENXIO error returns to EOPNOTSUPP. > =20 > This improves handling of the case where the /var/run/lock fifo exists > but there is no listener: we immediately return EOPNOTSUPP rather > than blocking until a listener turns up. This could occur during a > diskless boot before rpc.lockd is loaded, or if the lock file persists > across a reboot following the disabling of rpc.lockd. This may have > suddenly started to occur due to fifo blocking fixes--previously it > looks like attempts to read on a fifo with no listener would time out > due to insufficient resources. Thanks, this sounds like it may fix non-blocking calls to open() on a NFS file, which would previously block. Kris --OgqxwSJOaUobr8KG Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (FreeBSD) iD8DBQE+gi6rWry0BWjoQKURAigYAJ9c6RyU3KiWDa1wPtPBBPpHkNYvWwCgoj8W UCiZjYgHyTBd6KX2IRj+FN0= =CPdR -----END PGP SIGNATURE----- --OgqxwSJOaUobr8KG--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030326225019.GA11327>