Date: Wed, 13 Jul 2011 17:09:15 +0000 (UTC) From: Sean Bruno <sbruno@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sbin/umount umount.8 umount.c src/sys/nfsclient nfs_vfsops.c Message-ID: <201107131710.p6DHAcub013464@repoman.freebsd.org>
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sbruno 2011-07-13 17:09:15 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sbin/umount umount.8 umount.c
sys/nfsclient nfs_vfsops.c
Log:
SVN rev 223982 on 2011-07-13 17:09:15Z by sbruno
MFC r222541, r222464, r222466
Modify the umount(8) command so that it doesn't do
a sync(2) syscall before unmount(2) for the "-f" case.
This avoids a forced dismount from getting stuck for
an NFS mountpoint in sync() when the server is not
responsive. With this commit, forced dismounts should
normally work for the NFS clients, but can take up to
about 1minute to complete.
Add a check for MNTK_UNMOUNTF at the beginning of nfs_sync()
in the old NFS client so that a forced dismount doesn't
get stuck in the VFS_SYNC() call that happens before
VFS_UNMOUNT() in dounmount(). Analagous to r222329 for the new NFS client.
An additional change is needed before forced dismounts will work.
Add a sentence to the umount.8 man page to clarify the behaviour
for forced dismount when used on an NFS mount point. Requested by
Jeremy Chadwick.
This is a content change
Revision Changes Path
1.20.18.1 +4 -1 src/sbin/umount/umount.8
1.45.10.1 +3 -3 src/sbin/umount/umount.c
1.193.2.8 +10 -1 src/sys/nfsclient/nfs_vfsops.c
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