d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
58567a1b4e
freebsd-nq/sys
History
Will Andrews 58567a1b4e ZFS: Fix a panic while unmounting a busy filesystem. 
This particular scenario was easily reproduced using a NFS export.  When the
first 'zfs unmount' occurred, it returned EBUSY via this path, while
vflush() had flushed references on the filesystem's root vnode, which in
turn caused its v_interlock to be destroyed.  The next time 'zfs unmount'
was called, vflush() tried to obtain this lock, which caused this panic.

Since vflush() on FreeBSD is a definitive call, there is no need to check
vfsp->vfs_count after it completes.  Simply #ifdef sun this check.

Submitted by:	avg
Reviewed by:	avg
Approved by:	ken (mentor)
MFC after:	1 month
2013-03-23 16:34:56 +00:00
..
amd64 Implement the concept of the unmapped VMIO buffers, i.e. buffers which 2013-03-19 14:13:12 +00:00
arm Minimal timer period of 100us introduced in r244758 is overkill. While 2013-03-21 15:42:41 +00:00
boot Integrate Efika MX project back to home. 2013-03-20 15:39:27 +00:00
bsm Implement chflagsat(2) system call, similar to fchmodat(2), but operates on 2013-03-21 22:59:01 +00:00
cam Commit the removal of a whitespace to record the proper commit message 2013-03-19 15:05:21 +00:00
cddl ZFS: Fix a panic while unmounting a busy filesystem. 2013-03-23 16:34:56 +00:00
compat Regenerate after r248599. 2013-03-21 23:02:19 +00:00
conf Sync back vmcontention branch into HEAD: 2013-03-18 00:25:02 +00:00
contrib Simplify TAILQ usage and avoid additional memory allocations. 2013-03-05 08:08:16 +00:00
crypto
ddb
dev Don't attempt to reference sc before testing whether it's NULL. 2013-03-22 22:46:19 +00:00
fs - Constify local path variable for chflagsat(). 2013-03-22 07:40:34 +00:00
gdb
geom Correct the page count when excess length is trimmed from the bio. 2013-03-21 22:36:43 +00:00
gnu/fs/reiserfs Garbage collect XFS bits which are now already completely disconnected 2013-03-02 15:33:54 +00:00
i386 Implement the concept of the unmapped VMIO buffers, i.e. buffers which 2013-03-19 14:13:12 +00:00
ia64 Implement the concept of the unmapped VMIO buffers, i.e. buffers which 2013-03-19 14:13:12 +00:00
isa
kern Extend taskqueue(9) to enable per-taskqueue callbacks. 2013-03-23 15:11:53 +00:00
kgssapi
libkern Add __aeabi_memset to libkern, implemented using memset, as clang may 2013-03-16 23:11:55 +00:00
mips Implement the concept of the unmapped VMIO buffers, i.e. buffers which 2013-03-19 14:13:12 +00:00
modules Fix the powerpc64 build. MACHINE_CPUARCH is common for powerpc/powerpc64, 2013-03-19 00:39:02 +00:00
net Remove __FreeBSD_version ifdefs. 2013-03-22 20:44:16 +00:00
net80211 Add VNET wrappers around the rest of the ieee80211 rtsock messages. 2013-03-20 02:42:52 +00:00
netatalk
netgraph Add NGM_NAT_LIBALIAS_INFO command, that reports internal stats 2013-03-21 08:36:15 +00:00
netinet Add ipfw support for setting/matching DiffServ codepoints (DSCP). 2013-03-20 10:35:33 +00:00
netinet6 Clean up some unused leftover code. 2013-03-22 01:45:54 +00:00
netipsec Use m_get2() + m_align() instead of hand made key_alloc_mbuf(). Code 2013-03-15 10:20:15 +00:00
netipx
netnatm
netpfil Add ipfw support for setting/matching DiffServ codepoints (DSCP). 2013-03-20 10:35:33 +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 Use m_get() and m_getcl() instead of compat macros. 2013-03-15 10:21:18 +00:00
nfsclient Fix remainder calculation when biosize is not a power of 2 2013-03-19 13:06:11 +00:00
nfsserver Switch the vm_object mutex to be a rwlock. This will enable in the 2013-03-09 02:32:23 +00:00
nlm
ofed Switch the vm_object mutex to be a rwlock. This will enable in the 2013-03-09 02:32:23 +00:00
opencrypto
pc98 Switch the vm_object mutex to be a rwlock. This will enable in the 2013-03-09 02:32:23 +00:00
pci
powerpc Implement the concept of the unmapped VMIO buffers, i.e. buffers which 2013-03-19 14:13:12 +00:00
rpc Revert 195703 and 195821 as this special stop handling in NFS is now 2013-03-13 21:06:03 +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 Implement the concept of the unmapped VMIO buffers, i.e. buffers which 2013-03-19 14:13:12 +00:00
sys Extend taskqueue(9) to enable per-taskqueue callbacks. 2013-03-23 15:11:53 +00:00
teken
tools
ufs The purpose of this change to the FFS layout policy is to reduce the 2013-03-22 21:45:28 +00:00
vm Only size and create the bio_transient_map when unmapped buffers are 2013-03-21 07:28:15 +00:00
x86 MFcalloutng: 2013-02-28 13:46:03 +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