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64a0e848ab
freebsd-dev/sys
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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
..
amd64 Print RDSEED, ADX, and SMAP. 2013-04-18 01:21:44 +00:00
arm - Correct mispellings of word resource 2013-04-17 11:47:32 +00:00
boot The CELL fields can be various integer types depending on the platform 2013-04-07 05:53:42 +00:00
bsm Implement chflagsat(2) system call, similar to fchmodat(2), but operates on 2013-03-21 22:59:01 +00:00
cam - Corrrect mispellings of word useful 2013-04-17 11:45:15 +00:00
cddl DTrace: Revert r249367 2013-04-17 02:20:17 +00:00
compat Regen. 2013-04-02 05:30:52 +00:00
conf Move the NFS FHA (File Handle Affinity) code from sys/nfsserver to 2013-04-17 22:42:43 +00:00
contrib Forcibly defining _KERNEL is bad idea. Toss some code so that ip_var.h 2013-04-08 19:20:27 +00:00
crypto When porting XTS-related code from OpenBSD I forgot to update copyright (only 2013-02-20 22:59:53 +00:00
ddb
dev cxgbe(4): Refuse to install T5 firmwares on a T4 card (and vice versa). 2013-04-18 22:54:41 +00:00
fs When an NFS unmount occurs, once vflush() writes the last dirty 2013-04-18 23:20:16 +00:00
gdb
geom Comment typo fix. 2013-04-16 22:42:40 +00:00
gnu/fs/reiserfs Garbage collect XFS bits which are now already completely disconnected 2013-03-02 15:33:54 +00:00
i386 - Correct spelling in comments 2013-04-17 11:56:11 +00:00
ia64 Remove ctl(4) from GENERIC. Also remove 'options CTL_DISABLE' 2013-04-12 16:25:03 +00:00
isa
kern On non-ACPI i386 mp_ncpus is initialized at SI_SUB_CPU, and this 2013-04-17 18:43:33 +00:00
kgssapi Piete.Brooks at cl.cam.ac.uk reported via email a crash which was 2012-12-18 00:25:48 +00:00
libkern Add __aeabi_memset to libkern, implemented using memset, as clang may 2013-03-16 23:11:55 +00:00
mips Add the static kernel boot environment, needed to actually boot this thing. 2013-04-17 18:26:01 +00:00
modules Move the NFS FHA (File Handle Affinity) code from sys/nfsserver to 2013-04-17 22:42:43 +00:00
net Recover missing arp_ifinit() call. 2013-04-18 20:13:33 +00:00
net80211 Implement a utility function to return the current TX power cap for 2013-04-16 20:36:32 +00:00
netatalk
netgraph - Correct mispellings of the word necessary 2013-04-17 11:42:40 +00:00
netinet - Corrrect mispellings of word useful 2013-04-17 11:45:15 +00:00
netinet6 Fix build after r249543. 2013-04-16 16:59:29 +00:00
netipsec Use IP6STAT_INC/IP6STAT_DEC macros to update ip6 stats. 2013-04-09 07:11:22 +00:00
netipx
netnatm
netpfil Fix ipfw rule validation partially broken by r248552. 2013-04-01 11:28:52 +00:00
netsmb Call make_dev_credf() rather than using the couple make_dev()/dev_ref(). 2013-03-09 16:58:19 +00:00
nfs Move the NFS FHA (File Handle Affinity) code from sys/nfsserver to 2013-04-17 22:42:43 +00:00
nfsclient When an NFS unmount occurs, once vflush() writes the last dirty 2013-04-18 23:20:16 +00:00
nfsserver Move the NFS FHA (File Handle Affinity) code from sys/nfsserver to 2013-04-17 22:42:43 +00:00
nlm
ofed Check for SS_NBIO in the socket state field rather than socket buffer 2013-04-03 20:31:10 +00:00
opencrypto When porting XTS-related code from OpenBSD I forgot to update copyright (only 2013-02-20 22:59:53 +00:00
pc98 - Correct mispellings of word resource 2013-04-17 11:47:32 +00:00
pci - Corrrect mispellings of word useful 2013-04-17 11:45:15 +00:00
powerpc Generate a LINT for powerpc and for powerpc64. 2013-04-11 22:18:20 +00:00
rpc Fix a potential socket leak in the NFS server. If a client closes its 2013-04-08 19:03:01 +00:00
security Switch the vm_object mutex to be a rwlock. This will enable in the 2013-03-09 02:32:23 +00:00
sparc64 Remove ctl(4) from GENERIC. Also remove 'options CTL_DISABLE' 2013-04-12 16:25:03 +00:00
sys Add a new set of notes to a process core dump to store procstat data. 2013-04-16 19:19:14 +00:00
teken
tools Further refine the handling of stop signals in the NFS client. The 2013-02-21 19:02:50 +00:00
ufs - Correct mispellings of the word occurrence 2013-04-17 11:40:10 +00:00
vm When calculating the number of reserved nodes, discount the pages that will 2013-04-18 05:34:33 +00:00
x86 Introduce kern.timecounter.smp_tsc_adjust tunable (disabled by default) and 2013-04-18 17:07:04 +00:00
xdr Use m_get() and m_getcl() instead of compat macros. 2013-03-15 10:21:18 +00:00
xen
Makefile Remove netncp cscope entry missed in r248097 2013-03-12 14:21:52 +00:00