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2fd1c912f6
freebsd-skq/sys
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mjg 2fd1c912f6 mtx: add mtx_spin_wait_unlocked 
The primitive can be used to wait for the lock to be released. Intended
usage is for locks in structures which are about to be freed.

The benefit is the avoided interrupt enable/disable trip + atomic op to
grab the lock and shorter wait if the lock is held (since there is no
worry someone will contend on the lock, re-reads can be more aggressive).

Briefly discussed with:	 kib
2018-02-19 00:38:14 +00:00
..
amd64 Rationalize license text on Linuxolator files 2018-02-16 15:00:14 +00:00
arm Add the MODULE_DEPEND()s needed so that the kernel linker can resolve all 2018-02-18 23:01:33 +00:00
arm64 Make v_wire_count a per-cpu counter(9) counter. This eliminates a 2018-02-12 22:53:00 +00:00
bsm sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
cam Report the number of remaining retries when we have an error that 2018-02-15 18:57:54 +00:00
cddl zfs: fix formatting in a log statement 2018-02-16 21:59:08 +00:00
compat Optimise xchg() to use atomic_swap_32() and atomic_swap_64(). 2018-02-18 18:46:56 +00:00
conf Correct module symbol export handling 2018-02-16 15:38:02 +00:00
contrib Define CK_MD_TSO for the relevant arches (i386, amd64 and sparc64). 2018-02-16 17:50:06 +00:00
crypto ccp(4): Store IV in output buffer in GCM software fallback when requested 2018-01-27 07:41:31 +00:00
ddb Implement 'domainset', a cpuset based NUMA policy mechanism. This allows 2018-01-12 22:48:23 +00:00
dev Provide public declarations for ofw_spibus_driver and ofw_spibus_devclass 2018-02-18 23:35:23 +00:00
dts Add a skeleton Clock Manager for RPi2/3, and use that from pwm 2018-01-22 07:10:30 +00:00
fs {ext2|ufs}_readdir: Avoid setting negative ncookies. 2018-02-06 22:38:19 +00:00
gdb sys/gdb: further adoption of SPDX licensing ID tags. 2017-11-27 15:16:59 +00:00
geom Fix a memory leak introduced in r328426. 2018-02-16 15:41:03 +00:00
gnu bwn(4): txpid2g/txpid5g[lh] are not defined after sromrev 7; the default 2018-02-13 17:43:54 +00:00
i386 Rationalize license text on Linuxolator files 2018-02-16 15:00:14 +00:00
isa Add ISA PNP tables to ISA drivers. Fix a few incidental comments. 2018-01-29 00:22:30 +00:00
kern mtx: add mtx_spin_wait_unlocked 2018-02-19 00:38:14 +00:00
kgssapi kgssapi: Remove trivial deadcode 2018-02-14 00:12:03 +00:00
libkern libkern: use nul for terminating char rather than 0 2018-02-13 19:17:48 +00:00
mips Make v_wire_count a per-cpu counter(9) counter. This eliminates a 2018-02-12 22:53:00 +00:00
modules Add iic_recover_bus.c, now part of iicbus. This should have been added 2018-02-18 22:57:04 +00:00
net BPF: Switch to 32 bit compatible mode only when thread is 32 bit 2018-01-25 12:13:41 +00:00
net80211 net80211: sanitize input for ieee80211_output() 2017-12-30 00:40:34 +00:00
netgraph ng_pppoe(8): add support for user-supplied Host-Uniq tag. 2018-02-14 21:17:44 +00:00
netinet Reinitialize IP header length after checksum calculation. It is used 2018-02-10 10:13:17 +00:00
netinet6 Update the MTU in affected routes when IPv6 RA changes the MTU 2018-02-12 19:49:20 +00:00
netipsec Adopt revision 1.76 and 1.77 from NetBSD: 2018-01-24 19:48:25 +00:00
netpfil Remove duplicate #include <netinet/ip_var.h>. 2018-02-07 19:12:05 +00:00
netsmb Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
nfs Modernize nfssvc(2) registartion. 2018-02-08 20:09:42 +00:00
nfsclient style: Remove remaining deprecated MALLOC/FREE macros 2018-01-25 22:25:13 +00:00
nfsserver sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
nlm Use syscall_helper_register() to register syscalls and initialize though 2018-02-10 01:09:22 +00:00
ofed Import the mthca kernel side infiniband driver from Linux 4.9 and fix 2018-02-13 17:04:34 +00:00
opencrypto Move per-operation data out of the csession structure. 2018-01-26 23:21:50 +00:00
powerpc Merge AIM and Book-E PCPU fields 2018-02-17 20:59:12 +00:00
riscv Make v_wire_count a per-cpu counter(9) counter. This eliminates a 2018-02-12 22:53:00 +00:00
rpc Do pass removing some write-only variables from the kernel. 2017-12-25 04:48:39 +00:00
security Reduce duplication in __mac_*_(file|link)(2) implementation. 2018-02-15 18:57:22 +00:00
sparc64 Make v_wire_count a per-cpu counter(9) counter. This eliminates a 2018-02-12 22:53:00 +00:00
sys mtx: add mtx_spin_wait_unlocked 2018-02-19 00:38:14 +00:00
teken sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
tests
tools Avoid using \$. It's an unknown escape sequence. Some awks warn about 2018-01-28 05:13:08 +00:00
ufs Fix a memory leak introduced in r328426. 2018-02-16 15:41:03 +00:00
vm Use the conventional name for an array of pages. 2018-02-16 15:38:22 +00:00
x86 Don't include DMAR map entry zone items in kernel dumps. 2018-02-18 16:03:50 +00:00
xdr sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
xen sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
Makefile Move sys/boot to stand. Fix all references to new location 2017-11-14 23:02:19 +00:00