Konstantin Belousov 2d19b736ed Rewrite subr_sleepqueue.c use of callouts to not depend on the ... specifics of callout KPI. Esp., do not depend on the exact interface of callout_stop(9) return values. The main change is that instead of requiring precise callouts, code maintains absolute time to wake up. Callouts now should ensure that a wake occurs at the requested moment, but we can tolerate both run-away callout, and callout_stop(9) lying about running callout either way. As consequence, it removes the constant source of the bugs where sleepq_check_timeout() causes uninterruptible thread state where the thread is detached from CPU, see e.g. r234952 and r296320. Patch also removes dual meaning of the TDF_TIMEOUT flag, making code (IMO much) simpler to reason about. Tested by: pho Reviewed by: jhb Sponsored by: The FreeBSD Foundation MFC after: 1 month Differential revision: https://reviews.freebsd.org/D7137		2016-07-28 09:09:55 +00:00
..
amd64	Add more UEFI/e820 memory types from latest specifications.	2016-07-24 09:15:11 +00:00
arm	Enable the build of micphy as part of generic miibus build, but only for	2016-07-28 05:59:56 +00:00
arm64	Remove an unused variable.	2016-07-25 16:18:20 +00:00
boot	Do not use TERM_EMU on arm and arm64 as it doesn't behave well with serial console.	2016-07-19 19:00:22 +00:00
bsm
cam	Remove some extraneous printfs.	2016-07-25 19:16:30 +00:00
cddl	Merge {amd64,i386}/instr_size.c into x86_instr_size.c.	2016-07-20 00:02:10 +00:00
compat	Hide the boottime and bootimebin globals, provide the getboottime(9)	2016-07-27 11:08:59 +00:00
conf	Enable the build of micphy as part of generic miibus build, but only for	2016-07-28 05:59:56 +00:00
contrib	Update iwmfw(4) to include support for 8260 series units and update	2016-07-25 23:05:25 +00:00
crypto
ddb	Rewrite subr_sleepqueue.c use of callouts to not depend on the	2016-07-28 09:09:55 +00:00
dev	hyperv/vmbus: Inclusion cleanup	2016-07-28 06:46:10 +00:00
fs	Hide the boottime and bootimebin globals, provide the getboottime(9)	2016-07-27 11:08:59 +00:00
gdb
geom	Do not invoke resize method if geom is being withered.	2016-07-25 09:12:08 +00:00
gnu
i386	Add more UEFI/e820 memory types from latest specifications.	2016-07-24 09:15:11 +00:00
isa
kern	Rewrite subr_sleepqueue.c use of callouts to not depend on the	2016-07-28 09:09:55 +00:00
kgssapi
libkern
mips
modules	opt_bdg.h was removed in r150636.	2016-07-27 20:48:15 +00:00
net	Hide the boottime and bootimebin globals, provide the getboottime(9)	2016-07-27 11:08:59 +00:00
net80211
netgraph
netinet	Prepare for network stack as a module	2016-07-27 20:34:09 +00:00
netinet6	Prepare for network stack as a module	2016-07-27 20:34:09 +00:00
netipsec	Get closer to a VIMAGE network stack teardown from top to bottom rather	2016-06-21 13:48:49 +00:00
netnatm
netpfil	Hide the boottime and bootimebin globals, provide the getboottime(9)	2016-07-27 11:08:59 +00:00
netsmb
nfs	Hide the boottime and bootimebin globals, provide the getboottime(9)	2016-07-27 11:08:59 +00:00
nfsclient
nfsserver
nlm
ofed
opencrypto
pc98
powerpc	Use label math instead of hard-coding offsets for return addresses.	2016-07-23 02:27:42 +00:00
riscv
rpc	Hide the boottime and bootimebin globals, provide the getboottime(9)	2016-07-27 11:08:59 +00:00
security
sparc64
sys	Rewrite subr_sleepqueue.c use of callouts to not depend on the	2016-07-28 09:09:55 +00:00
teken
tests
tools
ufs	Ensure that the UFS directory vnode' vm_object is properly sized	2016-07-20 14:40:56 +00:00
vm	De-pluralize "queues" where appropriate in the pagedaemon code.	2016-07-27 17:11:03 +00:00
x86
xdr
xen
Makefile