Date: Tue, 16 Apr 2002 18:07:30 -0700 (PDT) From: Ian Dowse <iedowse@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/sys mount.h src/sys/kern vfs_syscalls.c src/sys/nfsclient nfs_socket.c Message-ID: <200204170107.g3H17U999882@freefall.freebsd.org>
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iedowse 2002/04/16 18:07:30 PDT
Modified files:
sys/sys mount.h
sys/kern vfs_syscalls.c
sys/nfsclient nfs_socket.c
Log:
The recent NFS forced unmount improvements introduced a side-effect
where some client operations might be unexpectedly cancelled during
an unsuccessful non-forced unmount attempt. This causes problems
for amd(8), because it periodically attempts a non-forced unmount
to check if the filesystem is still in use.
Fix this by adding a new mountpoint flag MNTK_UNMOUNTF that is set
only during the operation of a forced unmount. Use this instead of
MNTK_UNMOUNT to trigger the cancellation of hung NFS operations.
Also correct a problem where dounmount() might inadvertently clear
the MNTK_UNMOUNT flag.
Reported by: simokawa
MFC after: 1 week
Revision Changes Path
1.247 +9 -2 src/sys/kern/vfs_syscalls.c
1.78 +4 -4 src/sys/nfsclient/nfs_socket.c
1.124 +6 -0 src/sys/sys/mount.h
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