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a8c8e44bf0
freebsd-dev/sys
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Mateusz Guzik a8c8e44bf0 vfs: manage mnt_ref with atomics 
New primitive is introduced to denote sections can operate locklessly
on aspects of struct mount, but which can also be disabled if necessary.
This provides an opportunity to start scaling common case modifications
while providing stable state of the struct when facing unmount, write
suspendion or other events.

mnt_ref is the first counter to start being managed in this manner with
the intent to make it per-cpu.

Reviewed by:	kib, jeff
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21425
2019-09-16 21:31:02 +00:00
..
amd64 Fix a couple of nits in r352110. 2019-09-16 15:06:19 +00:00
arm Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
arm64 Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
bsm
cam Fix assumptions of only one device per SES slot. 2019-09-11 03:25:30 +00:00
cddl vfs: manage mnt_ref with atomics 2019-09-16 21:31:02 +00:00
compat linux: add trivial renameat2 implementation 2019-09-11 13:01:59 +00:00
conf powerpc64/powernv: Add opal NVRAM driver for PowerNV systems 2019-09-14 03:30:34 +00:00
contrib Change synchonization rules for vm_page reference counting. 2019-09-09 21:32:42 +00:00
crypto Stop using des_cblock * for arguments to DES functions. 2019-08-26 17:25:07 +00:00
ddb ddb(4): Add some support for lexing IPv6 addresses 2019-09-09 16:32:23 +00:00
dev Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
dts dtso: allwinner: Add an overlay for H3 thermal node 2019-08-24 13:26:34 +00:00
fs Fix an off-by-one error from r351961 2019-09-16 16:41:01 +00:00
gdb gdb(4): Root a sysctl tree at 'debug.gdb.' 2019-09-08 22:52:47 +00:00
geom Add a "count_until_fail" option to gnop, which says to start failing 2019-09-13 23:03:56 +00:00
gnu arm: dts: am33xx: Fix the region for uart0 2019-08-07 13:11:53 +00:00
i386 Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
isa
kern vfs: manage mnt_ref with atomics 2019-09-16 21:31:02 +00:00
kgssapi Stop using des_cblock * for arguments to DES functions. 2019-08-26 17:25:07 +00:00
libkern Remove zlib 1.0.4 from kernel. 2019-08-25 17:13:00 +00:00
mips Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
modules powerpc64/powernv: Add opal NVRAM driver for PowerNV systems 2019-09-14 03:30:34 +00:00
net SIOCSIFNAME: Do nothing if we're not actually changing 2019-09-12 15:36:48 +00:00
net80211 Enhance the comment ieee80211_add_channel() to avoid a 2019-06-10 14:31:18 +00:00
netgraph avoid holding PCB mutex during copyin/copyout() 2019-08-30 16:35:31 +00:00
netinet Don't write to memory outside of the allocated array for SACK blocks. 2019-09-16 08:18:05 +00:00
netinet6 Add kernel-side support for in-kernel TLS. 2019-08-27 00:01:56 +00:00
netipsec Fix broken window replay check that will allow old packet to be accepted. 2019-09-06 14:30:23 +00:00
netpfil Drivers may pass runt packets to filter. This is okay. 2019-09-13 22:36:04 +00:00
netsmb Stop using des_cblock * for arguments to DES functions. 2019-08-26 17:25:07 +00:00
nfs
nfsclient
nfsserver
nlm
ofed OFED: Fix accidental double-copy of rdma_sdp.h in r351176 2019-08-18 04:19:41 +00:00
opencrypto Adjust the deprecated warnings for /dev/crypto to be less noisy. 2019-08-27 21:29:37 +00:00
powerpc Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
riscv Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
rpc Avoid relying on header pollution from sys/refcount.h. 2019-07-29 20:26:01 +00:00
security vm_map_simplify_entry considers merging an entry with its two 2019-08-25 07:06:51 +00:00
sparc64 Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
sys vfs: manage mnt_ref with atomics 2019-09-16 21:31:02 +00:00
teken Adjust teken to allow build as part of loader 2019-09-05 18:07:40 +00:00
tests
tools fw_stub.awk: use @generated tag in generated files 2019-09-11 13:35:22 +00:00
ufs Remove some unneeded vfs_busy() calls in SU code. 2019-09-09 11:22:38 +00:00
vm vfs: manage mnt_ref with atomics 2019-09-16 21:31:02 +00:00
x86 Move phys_avail definition into MI code. It is consumed in the MI layer and 2019-08-16 00:45:14 +00:00
xdr
xen
Makefile