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7449055198
freebsd-skq/sys
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jhibbits 7449055198 Add a memory barrier after taking a reference on the vnode holdcnt in _vhold 
This is needed to avoid a race between the VNASSERT() below, and another
thread updating the VI_FREE flag, on weakly-ordered architectures.

On a 72-thread POWER9, without this barrier a 'make -j72 buildworld' would
panic on the assert regularly.

It may be possible to use a weaker barrier, and I'll investigate that once
all stability issues are worked out on POWER9.
2018-06-06 12:57:11 +00:00
..
amd64 hwpmc: ABI fixes 2018-06-04 02:05:48 +00:00
arm Since we don't enable BUF_TRACKING and FULL_BUF_TRACKING buffer debugging 2018-06-05 05:24:42 +00:00
arm64 Since we don't enable BUF_TRACKING and FULL_BUF_TRACKING buffer debugging 2018-06-05 05:24:42 +00:00
bsm
cam Enable high-speed on the card before increasing frequency on the controller 2018-06-05 11:03:24 +00:00
cddl Revert r326083, it doesn't behave as expected. 2018-06-03 03:53:11 +00:00
compat Declare and set the global "system_highpri_wq" workqueue structure pointer 2018-06-05 15:49:35 +00:00
conf Fix build: ignore a GCC 7.2.0 warning which says that third argument of 2018-06-04 16:20:22 +00:00
contrib MFV: r334448 2018-06-04 22:26:47 +00:00
crypto disable printing value of SKEIN_LOOP during standard out, 2018-05-19 18:27:14 +00:00
ddb Extend show proc with reaper, sigparent, and vmspace information 2018-05-25 13:59:48 +00:00
dev hwpmc: add summary command and further metadata extensions 2018-06-06 02:48:09 +00:00
dts arm: overlays: Update to new path-based sugar format 2018-05-04 14:38:48 +00:00
fs Revert r334586 since I now think __unused is the better way to handle this. 2018-06-04 11:35:04 +00:00
gdb amd64: Protect the kernel text, data, and BSS by setting the RW/NX bits 2018-03-06 14:28:37 +00:00
geom Introduce the 'n' flag for the geli attach command. 2018-05-09 20:53:38 +00:00
gnu gnu/dts: Update our copy of arm dts from Linux 4.16 2018-04-20 19:37:08 +00:00
i386 hwpmc: ABI fixes 2018-06-04 02:05:48 +00:00
isa Revert r330780, it was improperly tested and results in taking a spin 2018-03-11 20:13:15 +00:00
kern Add a memory barrier after taking a reference on the vnode holdcnt in _vhold 2018-06-06 12:57:11 +00:00
kgssapi kgssapi: Remove trivial deadcode 2018-02-14 00:12:03 +00:00
libkern str(r)chr: Replace union abuse with __DECONST 2018-06-04 18:47:14 +00:00
mips MALTA64EL: disable modules until objcopy is fixed 2018-05-24 23:58:57 +00:00
modules hwpmc: remove unused pre-table driven bits for intel 2018-05-31 22:41:07 +00:00
net Rework if_gif(4) to use new encap_lookup_t method to speedup lookup 2018-06-05 21:24:59 +00:00
net80211 Use an accessor function to access ifr_data. 2018-03-30 18:50:13 +00:00
netgraph Catch up two more places to the V_ifnet change to a CK_STAILQ. 2018-05-24 00:06:55 +00:00
netinet Use UDP len when calculating UDP checksums 2018-06-06 07:04:40 +00:00
netinet6 Use m_copyback() function to write delayed checksum when it isn't located 2018-06-06 10:46:24 +00:00
netipsec Rework IP encapsulation handling code. 2018-06-05 20:51:01 +00:00
netpfil pf: Replace rwlock on PF_RULES_LOCK with rmlock 2018-05-30 07:11:33 +00:00
netsmb Eliminate the overhead of gratuitous repeated reinitialization of cap_rights 2018-05-09 18:47:24 +00:00
nfs UDP: further performance improvements on tx 2018-05-23 21:02:14 +00:00
nfsclient style: Remove remaining deprecated MALLOC/FREE macros 2018-01-25 22:25:13 +00:00
nfsserver
nlm Use syscall_helper_register() to register syscalls and initialize though 2018-02-10 01:09:22 +00:00
ofed UDP: further performance improvements on tx 2018-05-23 21:02:14 +00:00
opencrypto cryptosoft: Do not exceed crd_len around *crypt_multi 2018-04-19 15:24:21 +00:00
powerpc Included VSX registers in powerpc core dumps 2018-06-02 20:28:58 +00:00
riscv Export a breakpoint() function to userland for riscv. 2018-05-16 16:56:35 +00:00
rpc
security #include <bsm/audit.h> in security/audit/audit_ioctl.h 2018-05-30 21:50:23 +00:00
sparc64 Define memmove and make bcopy alt entry point 2018-05-24 21:11:28 +00:00
sys malloc: elaborate on r334545 due to frequent questions 2018-06-06 05:08:05 +00:00
teken teken: Fix sequences header which was crossing the 80-col boundary 2018-05-29 08:41:44 +00:00
tests epoch(9): Make epochs non-preemptible by default 2018-05-18 17:29:43 +00:00
tools Add dtb overlays support 2018-03-24 21:30:24 +00:00
ufs ufs: remove cgbno variable where unused 2018-05-19 19:30:42 +00:00
vm Reimplement brk() and sbrk() to avoid the use of _end. 2018-06-04 19:35:15 +00:00
x86 add support for console resuming, implement it for uart, use on x86 2018-05-29 16:16:24 +00:00
xdr
xen xen: remove dead code from gnttab.h 2018-05-25 08:44:00 +00:00
Makefile