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783b0eb845
freebsd-skq/sys
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ian 783b0eb845 Add a new kernel config option, MD_ROOT_READONLY, which forces on the 
MD_READONLY flag for the md device automatically instantiated during
kernel init for an mdroot filesystem.

Note that there is specifically and by design no tunable or sysctl
control over this feature.  Without this option, you already have control
over whether the mdroot fs is writeable using vfs.root.mountfrom.options
from loader(8), the root_rw_mount rcvar, and by using "mount -u[rw] /"
or equivelent on the fly.  This option is being added to provide a way
to make the mdroot fs truly immutable before userland code begins running.

Differential Revision:	https://reviews.freebsd.org/D13411
2017-12-20 18:23:22 +00:00
..
amd64 Add atomic_load(9) and atomic_store(9) operations. 2017-12-19 09:59:20 +00:00
arm Add atomic_load(9) and atomic_store(9) operations. 2017-12-19 09:59:20 +00:00
arm64 Add atomic_load(9) and atomic_store(9) operations. 2017-12-19 09:59:20 +00:00
bsm sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
cam When doing a dump, the scheduler is normally not running, so this 2017-12-19 04:13:22 +00:00
cddl Don't return early for non-failure for one of the EMLINK checks. 2017-12-19 23:54:44 +00:00
compat Update Matthew Macy contact info 2017-12-19 17:59:00 +00:00
conf Add a new kernel config option, MD_ROOT_READONLY, which forces on the 2017-12-20 18:23:22 +00:00
contrib MFC: r326864 2017-12-14 23:21:31 +00:00
crypto sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
ddb ddb: fix validation of cpu id in 'set db_cpu=x' 2017-12-05 14:22:08 +00:00
dev Add a new kernel config option, MD_ROOT_READONLY, which forces on the 2017-12-20 18:23:22 +00:00
dts dts: arm: Remove imx6 related dts 2017-12-04 13:28:56 +00:00
fs Replace one more LINK_MAX with NFS_LINK_MAX missed in r326991. 2017-12-19 22:43:39 +00:00
gdb sys/gdb: further adoption of SPDX licensing ID tags. 2017-11-27 15:16:59 +00:00
geom Avoid using bioq_* in gmirror. 2017-12-19 17:13:04 +00:00
gnu Introduce bwn(4) support for the bhnd(4) bus. 2017-12-02 02:21:27 +00:00
i386 Add atomic_load(9) and atomic_store(9) operations. 2017-12-19 09:59:20 +00:00
isa sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
kern Rework pathconf handling for FIFOs. 2017-12-19 22:39:05 +00:00
kgssapi sys/kgssapi: general adoption of SPDX licensing ID tags. 2017-11-27 15:49:00 +00:00
libkern sys/kern: adoption of SPDX licensing ID tags. 2017-11-27 15:20:12 +00:00
mips Add atomic_load(9) and atomic_store(9) operations. 2017-12-19 09:59:20 +00:00
modules ixgbe(4): Convert driver to use iflib 2017-12-20 18:15:06 +00:00
net Add missing ; 2017-12-20 06:08:16 +00:00
net80211 [net80211] add a method for checking if a VAP WME AC has a NOACK policy or not. 2017-12-09 23:16:02 +00:00
netgraph sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
netinet Fix mbuf leak when TCPMD5_OUTPUT() method returns error. 2017-12-14 12:54:20 +00:00
netinet6 Follow the RFC6980 and silently ignore following IPv6 NDP messages 2017-12-15 12:37:32 +00:00
netipsec Do better cleaning in key_destroy() for VIMAGE case. 2017-12-01 09:59:42 +00:00
netpfil SPDX: license IDs for some ISC-related files. 2017-12-08 15:57:29 +00:00
netsmb sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
nfs sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
nfsclient sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
nfsserver sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
nlm sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
ofed sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
opencrypto We don't need both _STAND and _STANDALONE. There's more places that 2017-12-02 00:07:09 +00:00
powerpc Increase default MAXDSIZ to 32G on powerpc64 2017-12-20 16:49:45 +00:00
riscv Add atomic_load(9) and atomic_store(9) operations. 2017-12-19 09:59:20 +00:00
rpc sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
security sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
sparc64 Add atomic_load(9) and atomic_store(9) operations. 2017-12-19 09:59:20 +00:00
sys SPDX: These are fundamentally BSD-2-Clause. 2017-12-19 22:40:16 +00:00
teken sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
tests style(9): sort headers 2017-05-09 05:08:47 +00:00
tools embed_mfs: support embedding mfs into loader 2017-12-19 19:44:06 +00:00
ufs Rework pathconf handling for FIFOs. 2017-12-19 22:39:05 +00:00
vm Perform all accesses to uma_reclaim_needed using atomic(9) KPI. 2017-12-19 10:06:55 +00:00
x86 Remove the permanent double mapping of low physical memory and replace 2017-12-18 13:53:22 +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