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adcdb48eb5
freebsd-dev/sys
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Hartmut Brandt adcdb48eb5 Replace the lock-less algorithm for the free item list with a more 
conservative lock. The problem with the lock-less algorithm is that
it suffers from the ABA problem. Running an application with funnels
a couple of 100kpkts/s through the netgraph system on a dual CPU system
with MPSAFE drivers will panic almost immediatly with the old algorithm.

It may be possible to eliminate the contention between threads that insert
free items into the list and those that get free items by using the
Michael/Scott queue algorithm that has two locks.
2003-11-05 10:32:21 +00:00
..
alpha Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
amd64 Tweak the version string output for ioapic devices. 2003-11-04 19:22:20 +00:00
arm Add sysentvec->sv_fixlimits() hook so that we can catch cases on 64 bit 2003-09-25 01:10:26 +00:00
boot Override the root server address if an IP address is specified in 2003-11-03 19:45:05 +00:00
cam In camperiphdone(), make sure we check for fatal errors and bail out 2003-10-27 06:15:55 +00:00
coda Remove mntvnode_mtx and replace it with per-mountpoint mutex. 2003-11-05 04:30:08 +00:00
compat Back out the following revisions: 2003-11-05 01:53:10 +00:00
conf Hook the udf_iconv module up to the kernel build. 2003-11-05 06:38:14 +00:00
contrib Explain how to handle the generated files. Explain that the import 2003-11-03 09:15:31 +00:00
crypto Add a testcase which validates that the same buffer can be passed to 2003-10-19 22:12:23 +00:00
ddb Reworked rev.1.14. Use the ELF symbol type again to summarily reject 2003-09-28 06:02:33 +00:00
dev Make xe_reg_dump non-static to avoid warnings (and tinerbox mail) 2003-11-05 08:27:13 +00:00
fs Add hooks for translating directories entries using the iconv methods. 2003-11-05 06:56:08 +00:00
geom Close the right consumers if we run into trouble opening them all. 2003-10-24 18:47:31 +00:00
gnu Remove mntvnode_mtx and replace it with per-mountpoint mutex. 2003-11-05 04:30:08 +00:00
i4b Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
i386 Tweak the version string output for ioapic devices. 2003-11-04 19:22:20 +00:00
ia64 Handle unaligned 4-byte loads. While in the neighborhood, remove the 2003-11-03 08:04:04 +00:00
isa New APIC support code: 2003-11-03 21:53:38 +00:00
isofs/cd9660 DuH! 2003-10-18 14:10:28 +00:00
kern Minor style(9) nit 2003-11-05 06:14:48 +00:00
libkern - Support for multibyte charsets in LIBICONV. 2003-09-26 20:26:25 +00:00
modules Update the udf module makefile for the udf_iconv module 2003-11-05 06:30:59 +00:00
net - update comments to refrect recent BSDs. 2003-11-04 14:08:31 +00:00
net80211 Fix a reversed suser(9) in SIOCG80211:IEEE80211_IOC_WEPKEY which prevents 2003-11-05 04:16:48 +00:00
netatalk Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
netatm Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
netgraph Replace the lock-less algorithm for the free item list with a more 2003-11-05 10:32:21 +00:00
netinet - cleanup SP refcnt issue. 2003-11-04 16:02:05 +00:00
netinet6 source address selection part of RFC3484. 2003-11-04 20:22:33 +00:00
netipsec MFp4: portability work, general cleanup, locking fixes 2003-09-29 22:57:43 +00:00
netipx Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
netkey - cleanup SP refcnt issue. 2003-11-04 16:02:05 +00:00
netnatm Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
netncp The present defaults for the open and close for device drivers which 2003-09-27 12:01:01 +00:00
netsmb - Support for multibyte charsets in LIBICONV. 2003-09-26 20:26:25 +00:00
nfs
nfsclient Remove mntvnode_mtx and replace it with per-mountpoint mutex. 2003-11-05 04:30:08 +00:00
nfsserver When grabbing vnodes to service NFS requests, make sure to call 2003-10-24 18:36:49 +00:00
opencrypto falloc allocates a file structure and adds it to the file descriptor 2003-10-19 20:41:07 +00:00
pc98 'options APIC_IO' is replaced by 'device apic'. 2003-11-04 13:52:09 +00:00
pccard Change all SYSCTLS which are readonly and have a related TUNABLE 2003-10-21 18:28:36 +00:00
pci Free major#100 2003-11-03 10:19:33 +00:00
posix4 sched_setscheduler: Return EINVAL when a invalid policy is specified, 2003-09-13 18:46:24 +00:00
powerpc Add a stub cpu_idle() function for sparc64, alpha, powerpc. This is a 2003-10-19 02:36:07 +00:00
rpc
security Replace the if_name and if_unit members of struct ifnet with new members 2003-10-31 18:32:15 +00:00
sparc64 Add a stub cpu_idle() function for sparc64, alpha, powerpc. This is a 2003-10-19 02:36:07 +00:00
sys Include module.h 2003-11-05 06:27:40 +00:00
tools Changes for new SMP-safe kobj method dispatch algorithm. 2003-10-16 13:29:26 +00:00
ufs Remove mntvnode_mtx and replace it with per-mountpoint mutex. 2003-11-05 04:30:08 +00:00
vm - Move the implementation of OBJ_ONEMAPPING from vm_map_delete() to 2003-11-05 05:48:22 +00:00
Makefile