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988cb8dfd9
freebsd-nq/sys
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Bosko Milekic 988cb8dfd9 Eliminate a race in MEXTFREE(). The reference counter decrement and test 
was not atomic. We now make sure that we free the ext buf if the reference
count is about to reach 0 but also make sure that nobody else has done it
before us.

While I'm here, change refcnt to u_int (from long). This fixes a compiler
warning regarding use of atomic_cmpset_long on i386.

Submitted by: jasone
Reviewed by: jlemon, jake
2000-12-13 05:13:02 +00:00
..
alpha - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
amd64 Remove the COMPAT_OLDPCI option, it's going away. 2000-12-13 01:11:34 +00:00
boot Add a magic number, for easier identification of boot0. At present, 2000-12-12 17:27:35 +00:00
cam Add needed include of <sys/devicestat.h> 2000-12-07 22:31:13 +00:00
coda Protect accesses to member of struct proc with the proc lock. 2000-12-06 01:45:20 +00:00
compat - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
compile
conf Next round of PCI subsystem updates: 2000-12-13 01:25:11 +00:00
contrib/dev Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
crypto Initial import of AES algorithm code (aka Rijndael) from KAME. 2000-10-30 11:03:32 +00:00
ddb Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
dev Remove a redundant prototype. 2000-12-13 04:22:04 +00:00
fs o Tighten restrictions on use of /proc/pid/ctl and move access checks 2000-12-13 04:28:24 +00:00
geom Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
gnu Put the bits in place for Alpha support for ext2. Not tested. 2000-12-09 22:32:49 +00:00
i4b Change initialiser to match new structure layout. 2000-12-12 23:52:43 +00:00
i386 Remove the COMPAT_OLDPCI option, it's going away. 2000-12-13 01:11:34 +00:00
ia64 - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
isa It's possible for an ISA bus to be hung off an EISA bridge, so we need to 2000-12-12 23:33:29 +00:00
isofs/cd9660 Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern Use proper mutex locking when calling setrunnable from speedup_syncer(). 2000-12-13 01:06:53 +00:00
libkern Add __ucmpdi2 prototype to quelch a warning. 2000-12-07 22:28:20 +00:00
miscfs o Tighten restrictions on use of /proc/pid/ctl and move access checks 2000-12-13 04:28:24 +00:00
modules The linprocfs sources have moved to sys/compat/linprocfs. 2000-12-12 22:00:05 +00:00
msdosfs Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
net Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
netatalk Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
netatm Add back some now needed #include <sys/systm.h> 2000-12-07 22:19:06 +00:00
netgraph Fix bug in parse type for struct ng_one2many_config. 2000-12-12 23:12:22 +00:00
netinet Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
netinet6 Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
netipx Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
netkey Revert previous commit after discussion with phk. 2000-10-30 09:13:46 +00:00
netnatm Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
netncp Make malloc use M_ZERO in some more locations. 2000-10-29 16:14:28 +00:00
netns Lock down the network interface queues. The queue mutex must be obtained 2000-11-25 07:35:38 +00:00
nfs Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
nfsclient Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
nfsserver Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
ntfs Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
nwfs v_interlock is a mutex now, not simple lock. 2000-11-04 02:42:11 +00:00
pc98 Removed the VoxWare sound drivers. 2000-12-10 10:02:32 +00:00
pccard add PNPID for PnP PCMCIA, SCM SwapBox Classic X2P. 2000-12-11 15:02:50 +00:00
pci Next round of PCI subsystem updates: 2000-12-13 01:25:11 +00:00
posix4 Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
powerpc Store in globaldata our CPU ID#. Provide a lock for panics - only one 2000-12-09 20:52:42 +00:00
rpc
svr4 This patchset fixes a large number of file descriptor race conditions. 2000-11-18 21:01:04 +00:00
sys Eliminate a race in MEXTFREE(). The reference counter decrement and test 2000-12-13 05:13:02 +00:00
tools Simplify this a bit so that it doesn't have to generate silly redundant 2000-12-06 06:59:38 +00:00
ufs Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
vm - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
Makefile I should know better than to touch this without testing a 'make release' 2000-08-24 18:53:09 +00:00