Rick Macklem 64a0e848ab When an NFS unmount occurs, once vflush() writes the last dirty ... buffer for the last vnode on the mount back to the server, it returns. At that point, the code continues with the unmount, including freeing up the nfs specific part of the mount structure. It is possible that an nfsiod thread will try to check for an empty I/O queue in the nfs specific part of the mount structure after it has been free'd by the unmount. This patch avoids this problem by setting the iodmount entries for the mount back to NULL while holding the mutex in the unmount and checking the appropriate entry is non-NULL after acquiring the mutex in the nfsiod thread. Reported and tested by: pho Reviewed by: kib MFC after: 2 weeks		2013-04-18 23:20:16 +00:00
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nfs_bio.c	Both NFS clients can deadlock when using the "rdirplus" mount	2013-04-18 13:09:04 +00:00
nfs_kdtrace.c
nfs_krpc.c	Further refine the handling of stop signals in the NFS client. The	2013-02-21 19:02:50 +00:00
nfs_nfsiod.c	When an NFS unmount occurs, once vflush() writes the last dirty	2013-04-18 23:20:16 +00:00
nfs_node.c	r16312 is not any longer real since many years (likely since when VFS	2012-11-19 22:43:45 +00:00
nfs_subs.c	- Use m_get2() instead of nfsm_reqhead().	2013-03-12 12:23:47 +00:00
nfs_vfsops.c	When an NFS unmount occurs, once vflush() writes the last dirty	2013-04-18 23:20:16 +00:00
nfs_vnops.c	Revert 195703 and 195821 as this special stop handling in NFS is now	2013-03-13 21:06:03 +00:00
nfs.h
nfsargs.h	Move the NFSv4.1 client patches over from projects/nfsv4.1-client	2012-12-08 22:52:39 +00:00
nfsm_subs.h	- Use m_get2() instead of nfsm_reqhead().	2013-03-12 12:23:47 +00:00
nfsmount.h	Revert 195703 and 195821 as this special stop handling in NFS is now	2013-03-13 21:06:03 +00:00
nfsnode.h
nfsstats.h
nlminfo.h